Author Topic: MY 22RE Hybrid, 20r head, Factory EFI, No welding needed (Read 13743 times)

44newman · « **on:** Feb 28, 2019, 09:30:01 PM »

This board has had a lot of talk about this over the years so I thought Id share my experience.
I acquired an engine from a friend with the intent of using it for a replacement for my tired 22RE in my 86' Toyota 4x4. The engine had a propane turbo setup on it, and I was not familiar with Toyota 4 cylinders. Most Ive done to date was change the oil and a fuel filter once, PITA. Apon closer inspection after removing the turbo manifold, I noticed a difference in intake port shape. This was unexpected due to the fact that he told me it was an LCE head, and looking at the LCE head options a 20R was not one of them. Thinking it had to be compatible with EFI I started to do a little research. Research told me its a 20R head, And they are not compatible with stock EFI under normal circumstances. Yes it has been done, I found DOAs welded head, and pics of a adapter that were so so, with no explanation.
So here is my adapter, its 3/4 x 4 aluminum 6061 from ebay $40 shipped, Used the 2 center bolt holes for starting reference, then the gaskets of each to mark port shapes. Now this could probably be made on a CNC machine and bolt right on, but now for the tricky part, coolant passages. They arent where you need them. The most important being for the thermostat housing. Estimating the sq in of the EFI manifold passage I knew the 20R passage would need to be made as big as possible within the constraints of the boss width and height. This passage in a blind hole in the 20R head meaning it goes nowhere. So I took a 1/4" drill bit and started drilling into this blind hole, the hope was to hit a coolant passage, which I did, so I drilled and die ground as much as I thought possible.
Some of the manifold bolts line up, some have to be countersunk, and some tapped.
The details of my engine are
84'? Block
CP Forged Pistons
Stock crank rods
LCE 20R Stage 3 Head
LCE EFI Pro cam
Double roller chain
TB Bored to 57mm by Maxbore
220cc injectors
Supra AFM, not installed yet, waiting for CAI
LCE Header
EGR delete
Relocated knock sensor
4 wire O2
Adjusted AFM.
It runs good but I thought it lacked bottom end so I checked the cam, turns out its retarded 2.5 degrees, I want to fix this with a adjustable cam gear.
Timing its 5 jumped, Weird thing is it goes to 40 at RPM no matter where you put the inital setting. I read somewhere this was a ECM problem.

H8PVMNT · « **Reply #1 on:** Mar 01, 2019, 02:46:27 AM »

Well that is interesting. Keep up the good work!

44newman · « **Reply #2 on:** Mar 19, 2019, 07:09:08 AM »

I tried to make a thread worthy of conversation to get my post count up to do some other stuff on this forum. I guess this old toyota stuff isint interesting anymore, HAHAHA.

Plainview · « **Reply #3 on:** Mar 27, 2019, 01:29:42 PM »

I dig the fab work you've done, but my understanding is that the factory EFI system is not very flexible and fairly intolerant of HP adding mods.

That's the reason I'm sticking with a Weber on my hybrid motor.

I do wonder though, could you get an aftermarket controller/ECM to work with the stock EFI manifold? If so, that would offer up the tuning flexibility you need.

44newman · « **Reply #4 on:** Mar 28, 2019, 05:03:23 PM »

You are partially correct about too many mods for an EFI motor, with the mods I have listed mine runs great no problems at all idles smooth, now I don't have a tach so I don't know what it turns for RPMs I've heard the EFI manifold limits stop end. So carbureted intake would probably outflow it and build more power and be more forgiving to run a bigger cam, I've heard they're are alternatives to the factory EFI like megasquirt that will allow you to make much more power with EFI.

redneckcustoms13 · « **Reply #5 on:** Mar 29, 2019, 05:32:35 PM »

Quote from: 44newman on Mar 19, 2019, 07:09:08 AM

. I guess this old toyota stuff isint interesting anymore, HAHAHA.

That would probably be because the 3rz swap is so cheap and readily available.

44newman · « **Reply #6 on:** Mar 29, 2019, 10:15:08 PM »

Copy that, I did it based on cost. I was only in the engine and head couple hondos.

Gnarly4X · « **Reply #7 on:** Mar 30, 2019, 05:01:46 AM »

Quote from: Plainview on Mar 27, 2019, 01:29:42 PM

I dig the fab work you've done, but my understanding is that the factory EFI system is not very flexible and fairly intolerant of HP adding mods.

That's the reason I'm sticking with a Weber on my hybrid motor.

I do wonder though, could you get an aftermarket controller/ECM to work with the stock EFI manifold? If so, that would offer up the tuning flexibility you need.

I only have experience with my 1985 22R and my 2 1986 22REs.

I’m not sure of the total cost or parts to convert a 22RE EFI engine *back* to a 22R carb’d engine, but if wanted to increase the performance the engine, removing the EFI, ECU, and sensors, going to a carburetor will provide the most flexibility and options to increase power – torque and upper RPMs. Unless you are building a high RPM engine for running the Baja 500, for most of us it’s all about torque numbers from off-idle to about 3500 RPMs.

On a 22RE: A DT header and opened exhaust on 22RE will produce a noticeable increase in power, both low end torque and freeway speeds. A torquey aftermarket cam will get you a tad more. After that the rest of the bolt-on modifications and add-ons will most likely get small amounts of gain in power.

On a 22R: The right carburetor, intake manifold, header and exhaust system, and cam profile, on a factory stock 22R it will produce twice the power gain of a similarly modified 22RE.

The 22RE is an amazing design, even with its inherent premature head gasket and timing chain failure. Toyota has produced the most reliable engines ever installed in a pickup.

Gnarls.

sirdeuce · « **Reply #8 on:** Apr 26, 2019, 03:00:31 PM »

No, the interest in these old engines is not dead! I've been working on a process to do this same adaptation. Mine is a bit more involved, requires a lot more money as well. Money part comes in the form of a CNC and tech. Here's a short rundown.

1) Have the lower manifold runners scanned and mapped. the tech can then program the map to cut out the ports
2) Fill the lower manifold runners with epoxy (Aluminum epoxy is available through aerospace suppliers) about 3 inches deep
3) Machine the runners
4) some welding on the 20R head will benecessary to mate the 22RE manifold properly

Going 3 inches into the runners allows for a long taper into the round 20R port, which can be carried into the head. If all is done properly the flow will increase to a fantastic level and the port velocities will be kept high. If the port is designed properly a high swirl can be built into it. When all is said and done it should be hard to tell from stock.

For those who want to suggest doing an engine swap. Some of us just like the old engines.

Here's where your work on this is better, my way is a $1700 bill.

Definately post your results!

44newman · « **Reply #9 on:** Apr 26, 2019, 10:39:27 PM »

Have you started this? I ask because the square(rectangle) port shape of the EFI runner is important to the injector positioning. If you reshape the EFI runner to a round shape you will cut off the area the injector sprays. Just wondering if you covered this? The adapter plate option worked really good, the port differences are so minute the 3/4 adapter makes a nice transition.
BTW mine runs awesome. Im super impressed with the power, I dont know if you have ever drove an auto 22RE, but now mine will cruise in OD at 60 or 65, whatever. Where most will shift down trying to cruise at those speeds. And rips up to 80 pretty good.

Only things I lack now are: This is an important thing to consider, if you have a surfaced head or block, Your timing is probably off, not ignition timing but cam timing. As you surface the block or head you decrease the distance between cam and crank, so the additional slack in the timing chain is taken out on one side of the cam, not equal. So the cam ends up rotated slightly from where it should be stock. The cam positioning can be adjusted with a adjustable timing gear. Cam positioning is generally referred to in degrees, 0 being centered and advanced or retarded , meaning camshaft opens early or late. Advancing cam timing makes the cam events happen sooner, AKA build power sooner, AKA peak power is a lower RPM than if the cam is set to zero. After surfacing, the cam positioning is automatically retarded. Which means the power band is shifted to a higher RPM. Not at all what 22REs were designed for. So you are loosing bottom end power, and building power up high, beyond the limits of the 22RE. If you have surfaced your head or block or both I think its a MUST to have a adjustable timing gear, to get your cam timing back to 0 or even advanced.
My other want is a CAI of some sorts, there are a couple benefits of a cold air intakes, 1 being I can hookup my supra AFM.

Gnarly4X · « **Reply #10 on:** Apr 27, 2019, 04:19:35 AM »

Quote from: 44newman on Apr 26, 2019, 10:39:27 PM

....This is an important thing to consider, if you have a surfaced head or block, ...

The importance of cam timing adjustments is VERY dependant on the cam profile. Cam timing adjustments for decking a block or a head can be made very easily – just with the head gasket thickness. So it’s not necessary to buy an ACG and fart around with butt-dyno testing.

H8PVMNT should have some interesting comments on his experimenting with cam timing.

On a 22R/RE block, with a Toyota factory camshaft, the number of degrees, either advanced or retard change from zero, and the actual measurable affect on power is greater than a couple cam degrees. A common block deck at a machine shop is about .006” to .010” to “clean” the deck. At .010” off the block deck the cam timing change, retarded, would be difficult to even measure on an engine dyno or butt-dyno.

All of the port work or whatever magic poop is done, without a flow bench and an engine dyno, your butt dyno may not be accurate enough to measure the desired change.

The Toyota factory ECU and sensors on a stock 22RE is just not going to allow very significant performance changes, as would be measured with a carb’d engine.

From a factory stock 22R, rebuilding to .060” over bore, raising compression to 10:1, adding a DT header with an opened exhaust, a torquey cam, you could probably gain 20 to 25 HP and 15 to 20 lbs of torque.

Those changes on a stock 22RE might not produce the same increase in power.

Gnarls.

Gnarly4X · « **Reply #11 on:** Apr 27, 2019, 04:49:13 AM »

Quote from: sirdeuce on Apr 26, 2019, 03:00:31 PM

... If the port is designed properly a high swirl can be built into it. When all is said and done it should be hard to tell from stock.

How do you measure "swirl"?

Gnarls.

44newman · « **Reply #12 on:** Apr 27, 2019, 08:15:00 PM »

I would love to see H8PVMNT's cam timing experiments.
My engine was 2nd hand so I cant say how much was decked, But I can say the cam timing is 2.5 degrees retarded. Maybe the timing set had some affect on this too. At any rate 2.5 degrees could be upwards of a 400 RPM shift in power. So take my EFI pro cam is 1200-5000, adding 400 RPMs to the bottom of the power curve, 1600 is going to be a noticeable loss in bottom end power for one of these little engines.
Most cam manufactures recommend installing their cams at 0. If anything a little advanced would still be better than 2.5 retarded. My truck runs real good, but even with 4.88 gears and a 30" tire it still has to get rolling before the power really comes on. In my case Im betting I can get some more bottom end with a cam adjustment.

Gnarly4X · « **Reply #13 on:** Apr 28, 2019, 05:39:29 AM »

Quote from: 44newman on Apr 27, 2019, 08:15:00 PM

.... In my case Im betting I can get some more bottom end with a cam adjustment.

Will you feel a change in throttle response after you play with your adjustable cam gear? I'm curious to learn.

Ted at engnbldr (a NASCAR Golden Wrench recipient) once confirmed my comment on Pirate… the numbers produced by a $100,000 engine dyno, or a desktop dyno, may not translate to the driver or the car on the race track.

As I said... the cam profile is very important when discussing cam timing and timing adjustments.

According to their website, the LCE Pro Torquer cam 1022024-K has a split centerline. It is advanced 4.3 degrees. If your cam timing is retarded by 2.5 degrees (I assume you have measured it with a degree wheel) that means your cam is sitting at 1.8 degrees advanced.

Calculated between 1200 to 3,000 RPMs, for a 1.8 degree advance, at 1600 RPM there is virtually NO change in torque or HP numbers. 110, 33.6. But, you gain 1 lb. of torque at 3000 RPMs, right where we need it. For that range the average torque number drops by 1 lb. 128 to 127, and the average HP numbers are virtually the same – 53.1 HP.

I can post the numbers from Engine Analyzer, but it takes me awhile to do the composing after the program calculates the comparison. In the past 15+ years I’ve done hundreds of mock pulls on EA with practically every advertised camshaft for a 20/22 engine and made hundreds of comparisons on cam profile specs, including cam timing. BUT…. I am NOT a camshaft expert and NOT an engine builder.

That’s just my experience and my opinion – it may be worthless and full of pomp ‘n stink.

Gnarls.

zippo · « **Reply #14 on:** May 01, 2019, 03:53:34 PM »

44newman · « **Reply #15 on:** May 02, 2019, 01:33:12 PM »

Gnarly thanks for all the info, Im not necessarily looking for more power, just that the power come on a little sooner, I see what you mean about the split centerline, anytime the intake centerline degrees and LSA numbers are different, theres advance built into the cam. But it would be nice to have it degreed where it was ground to run.

Zippo did you ever try megasquirt? And what kind of pics where you hoping for?

Gnarly4X · « **Reply #16 on:** May 02, 2019, 02:30:54 PM »

Quote from: 44newman on May 02, 2019, 01:33:12 PM

Gnarly thanks for all the info, Im not necessarily looking for more power, just that the power come on a little sooner,

What RPM range do you want more torque? ... Like off idle to what? I have done all the cam comparisons for TORQUE.

It is interesting that LCE's split cam and Schneider's split cam are suggested for EFI. I can show you the numbers.

Mamma ECU apparently does not like too much overlap.

Gnarls.

44newman · « **Reply #17 on:** May 02, 2019, 08:38:07 PM »

Quote from: Gnarly4X on May 02, 2019, 02:30:54 PM

What RPM range do you want more torque? ... Like off idle to what? I have done all the cam comparisons for TORQUE.

It is interesting that LCE's split cam and Schneider's split cam are suggested for EFI. I can show you the numbers.

Mamma ECU apparently does not like too much overlap.

Gnarls.

RPMs, cant say, My POS doesnt have a tach, HAHA. It does zero in the way of trying to spin the "tire"HAHAHA, but once your rolling it pulls very impressive for a 22RE. But runs out of steam quick, which is probably due to intake design, not cam duration.
I built a small block Chevy years back. Moderate roller cam, ported heads, TPI EFI. The intake design has very long runners, 17", makes gobs of torque, but when it accelerates they run out of air at 5500. Its almost like hitting a rev limiter, even though the engine had 6000+ RPM potential easy, being balanced, forged, ect.
So does your research support the use of split cams like the two you mentioned?

Not many stock ECUs tolerate narrow LSAs

I am actually running the EFI PRO cam, which is very close to the Pro Torquer. The EFI PRO has even more built in advance.

Gnarly4X · « **Reply #18 on:** May 03, 2019, 04:43:35 AM »

Quote from: 44newman on May 02, 2019, 08:38:07 PM

RPMs, cant say, My POS doesnt have a tach, HAHA. It does zero in the way of trying to spin the "tire"HAHAHA, ....
I am actually running the EFI PRO cam, which is very close to the Pro Torquer. The EFI PRO has even more built in advance.

Geez…44newman..... I’m concerned about you! You are after more torque quicker, but you don’t even have a tach!!

And… you are not sure which LCE cam you have?

Profiling a cam for early peak torque in an engine with EFI is tricky for our engines.

Why? Because if you want early RPM torque numbers, then typically the profile will have a narrower LSA. The tighter the LSA the more overlap. How much overlap will Mamma ECU be happy with? I’ve been told by an engine builder that a cam profile in a 22RE at 6.2 degrees of overlap caused a lean fire condition in his testing.

Both the LCE cams you referenced have split centerlines, with a slight increase in overlap from stock cam (2.5 to 3.4 for the Torquer, and 4.2 for the EFI Pro).

With that said, the EFI Pro cam produces more torque and more HP than the Pro Torquer. The Pro Torquer has 4.3 degrees of advance, the EFI Pro has 8.8 degrees. If you have 2.5 degrees of retard as you stated, that makes the EFI Pro 6.3 degrees of advance. The numbers, both peak torque and HP are virtually the same for 8.8 degrees or 6.3 degrees between 1,000 and 2,800 RPMs.

The Schneider 244-50F EFI cam blows the doors off the LCE EFI Pro for low end torque. It has 2.2 degrees of overlap. 202/216 with 112 degree LSA.

So .. a split duration profile is typically better for low end to mid range torque, but as you are experiencing, you may trade-off some high RPMs power.

Regarding spinning tires… “ha-ha”… it’s an old TRUCK engine, not a Chevy Camaro 327!!

Gnarls.

sirdeuce · « **Reply #19 on:** May 03, 2019, 11:03:01 PM »

Quote from: Gnarly4X on Apr 27, 2019, 04:19:35 AM

The importance of cam timing adjustments is VERY dependant on the cam profile. Cam timing adjustments for decking a block or a head can be made very easily – just with the head gasket thickness. So it’s not necessary to buy an ACG and fart around with butt-dyno testing.

H8PVMNT should have some interesting comments on his experimenting with cam timing.

On a 22R/RE block, with a Toyota factory camshaft, the number of degrees, either advanced or retard change from zero, and the actual measurable affect on power is greater than a couple cam degrees. A common block deck at a machine shop is about .006” to .010” to “clean” the deck. At .010” off the block deck the cam timing change, retarded, would be difficult to even measure on an engine dyno or butt-dyno.

All of the port work or whatever magic poop is done, without a flow bench and an engine dyno, your butt dyno may not be accurate enough to measure the desired change.

The Toyota factory ECU and sensors on a stock 22RE is just not going to allow very significant performance changes, as would be measured with a carb’d engine.

From a factory stock 22R, rebuilding to .060” over bore, raising compression to 10:1, adding a DT header with an opened exhaust, a torquey cam, you could probably gain 20 to 25 HP and 15 to 20 lbs of torque.

Those changes on a stock 22RE might not produce the same increase in power.

Gnarls.

Quote from: 44newman on Apr 26, 2019, 10:39:27 PM

Have you started this? I ask because the square(rectangle) port shape of the EFI runner is important to the injector positioning. If you reshape the EFI runner to a round shape you will cut off the area the injector sprays. Just wondering if you covered this? The adapter plate option worked really good, the port differences are so minute the 3/4 adapter makes a nice transition.
BTW mine runs awesome. Im super impressed with the power, I dont know if you have ever drove an auto 22RE, but now mine will cruise in OD at 60 or 65, whatever. Where most will shift down trying to cruise at those speeds. And rips up to 80 pretty good.

I've not started this yet, money thing y'know. As for the injector? Plans to machine a pocket for the fuel flow, a pocket that will be blended into the head port. It'll be a few days down the road.

sirdeuce · « **Reply #20 on:** May 03, 2019, 11:03:23 PM »

Quote from: Gnarly4X on Apr 27, 2019, 04:19:35 AM

The importance of cam timing adjustments is VERY dependant on the cam profile. Cam timing adjustments for decking a block or a head can be made very easily – just with the head gasket thickness. So it’s not necessary to buy an ACG and fart around with butt-dyno testing.

H8PVMNT should have some interesting comments on his experimenting with cam timing.

On a 22R/RE block, with a Toyota factory camshaft, the number of degrees, either advanced or retard change from zero, and the actual measurable affect on power is greater than a couple cam degrees. A common block deck at a machine shop is about .006” to .010” to “clean” the deck. At .010” off the block deck the cam timing change, retarded, would be difficult to even measure on an engine dyno or butt-dyno.

All of the port work or whatever magic poop is done, without a flow bench and an engine dyno, your butt dyno may not be accurate enough to measure the desired change.

The Toyota factory ECU and sensors on a stock 22RE is just not going to allow very significant performance changes, as would be measured with a carb’d engine.

From a factory stock 22R, rebuilding to .060” over bore, raising compression to 10:1, adding a DT header with an opened exhaust, a torquey cam, you could probably gain 20 to 25 HP and 15 to 20 lbs of torque.

Those changes on a stock 22RE might not produce the same increase in power.

Gnarls.

Quote from: 44newman on Apr 26, 2019, 10:39:27 PM

Have you started this? I ask because the square(rectangle) port shape of the EFI runner is important to the injector positioning. If you reshape the EFI runner to a round shape you will cut off the area the injector sprays. Just wondering if you covered this? The adapter plate option worked really good, the port differences are so minute the 3/4 adapter makes a nice transition.
BTW mine runs awesome. Im super impressed with the power, I dont know if you have ever drove an auto 22RE, but now mine will cruise in OD at 60 or 65, whatever. Where most will shift down trying to cruise at those speeds. And rips up to 80 pretty good.

I've not started this yet, money thing y'know. As for the injector? Plans to machine a pocket for the fuel flow, a pocket that will be blended into the head port. It'll be a few days down the road.

RASALIBRE · « **Reply #21 on:** Aug 30, 2019, 09:33:44 PM »

Any updates, how’s this thing runnin?

44newman · « **Reply #22 on:** Sep 02, 2019, 09:59:36 PM »

Runs Awesome! Its a kick in the a$$ to drive. With the 4.88's it no longer hunts for what gear to be in. Kick on OD and it stays there, or kick it off for a hell of a passing gear. I still would like a CAI and put on the supra AFM. And degree the cam.

Gnarly4X · « **Reply #23 on:** Sep 03, 2019, 04:27:55 AM »

Quote from: 44newman on Sep 02, 2019, 09:59:36 PM

Runs Awesome! Its a kick in the a$$ to drive. With the 4.88's it no longer hunts for what gear to be in. Kick on OD and it stays there, or kick it off for a hell of a passing gear. I still would like a CAI and put on the supra AFM. And degree the cam.

44...

Can you please describe all of the engine specs now and where you ended up?

Are you thinking about putting your vehicle on an chassis dyno?

Gnarls.

44newman · « **Reply #24 on:** Sep 03, 2019, 10:19:40 PM »

As far as engine specs most of what I know is posted above. Things I dont know are compression ratio, over bore.
What was it you were interested in knowing?
As far as a Dyno run, that would be fun, but realistically, probably never happen. I live 3 hrs from any major city, and at this moment Im to busy to have that on my priority list.

Gnarly4X · « **Reply #25 on:** Sep 04, 2019, 05:08:54 AM »

Quote from: 44newman on Sep 03, 2019, 10:19:40 PM

As far as engine specs most of what I know is posted above. Things I dont know are compression ratio, over bore.
What was it you were interested in knowing?
As far as a Dyno run, that would be fun, but realistically, probably never happen. I live 3 hrs from any major city, and at this moment Im to busy to have that on my priority list.

Hey 44…

Congrats on getting your engine up and running!

My interest is perhaps taking your engine specs and plugging them into my Engine Analyzer. Over past 19 years I’ve done 100’s of mock pulls on my desktop dyno software with many of cam profiles and 100's changes in engine specs. I’ve spent 1000's of hours doing research… and still know just enough to be dangerous! My research has been mainly on the 22R and 22RE, and some on the 20Rs. I started out wanting to see how I could get more torque between 2500 and 3500 RPMs out of my 96 HP 22R.

I am always fascinated by the DIYer in his garage or backyard doing whatever he thinks is making a difference.

I’m old school and believe that a multi-billion dollar Toyota has the smartest automotive engineers on the planet and get to “play” in a multi-million dollar “shop”. So when it comes to guys hacking up or modifying something, it is typically an anecdotal reply with virtually no proof, like a dyno test before and after, just their butt-dyno report. Which, by the way, butt-dyno reporting does have some merit.

With that said, I also admire the people who come up with all the modifications beyond factory that have created some of best enhancements and performance gains on many engines over many decades.

I apologize if I am not quite sure what has been done to your engine?

You took a running engine, added RE EFI and added it to your modified adapter?

Did you buy and install the LCE cam and header? What size exhaust tubing are your running with what muffler or any CAT?

I assume you checked the cam timing with a degree wheel?

Have you installed the adjustable cam gear?

Have you done a compression test?

What fuel octane are your running and what is your elevation?

On the Carillo pistons, do you know what the part number is? I am unaware that Carillo makes a piston specifically for an early Toyota 2X?

Just curious.

Gnarls.

44newman · « **Reply #26 on:** Sep 09, 2019, 08:00:09 PM »

Gnarlys sorry for the delay, I would love for you to run my numbers. Ive been really busy, but I will post up everything I know here soon.
Thanks

44newman · « **Reply #27 on:** Sep 09, 2019, 08:40:04 PM »

I filled in the blanks for you best I could

Quote from: Gnarly4X on Sep 04, 2019, 05:08:54 AM

Hey 44…

Congrats on getting your engine up and running!

My interest is perhaps taking your engine specs and plugging them into my Engine Analyzer. Over past 19 years I’ve done 100’s of mock pulls on my desktop dyno software with many of cam profiles and 100's changes in engine specs. I’ve spent 1000's of hours doing research… and still know just enough to be dangerous! My research has been mainly on the 22R and 22RE, and some on the 20Rs. I started out wanting to see how I could get more torque between 2500 and 3500 RPMs out of my 96 HP 22R.

I am always fascinated by the DIYer in his garage or backyard doing whatever he thinks is making a difference.

I’m old school and believe that a multi-billion dollar Toyota has the smartest automotive engineers on the planet and get to “play” in a multi-million dollar “shop”. So when it comes to guys hacking up or modifying something, it is typically an anecdotal reply with virtually no proof, like a dyno test before and after, just their butt-dyno report. Which, by the way, butt-dyno reporting does have some merit.

With that said, I also admire the people who come up with all the modifications beyond factory that have created some of best enhancements and performance gains on many engines over many decades.

I apologize if I am not quite sure what has been done to your engine?

Most info is above.
Here are some flow numbers for 20R stage 3 head
http://www.lcengineering.com/LCTechPages/techpages/eng121.html

You took a running engine, added RE EFI and added it to your modified adapter?
YES

Did you buy and install the LCE cam and header? What size exhaust tubing are your running with what muffler or any CAT?
LCE EFI PRO CAM, LCE HEADER, 2.25 exhaust no cat, 12" thrush turbo muffler
CAM INFO https://www.lceperformance.com/EFI-Pro-Camshaft-22RE-RET-p/1022021.htm

I assume you checked the cam timing with a degree wheel?
Yes, its retarded 2.5 degrees, and would like to know RPM shift and torque gains of 0 or advanced

Have you installed the adjustable cam gear?
No

Have you done a compression test?
No I havent

What fuel octane are your running and what is your elevation?
89 non ethanol , 3500ft

On the Carillo pistons, do you know what the part number is? I am unaware that Carillo makes a piston specifically for an early Toyota 2X?
CP are sold from LCE as their pro pistons. I dont have positive specifics, but near as I can tell they are 9.7 compression. But with a 20r head thats shaved a little I cant say what the final compression is.
Just curious.

Gnarls.

Gnarly4X · « **Reply #28 on:** Sep 10, 2019, 04:06:19 AM »

Quote from: 44newman on Sep 09, 2019, 08:40:04 PM

I filled in the blanks for you best I could

Hi 44... (my racing number in the old days!!)

ALL the info you provided is great!!

I'll be able to plug that in and get some good numbers.

It takes me a couple hours at messaging the data to get the results.

I'll post the results in an Excel sheet, running RPMs from 1000 to 5900 with torque and HP.

Thank you for providing those specs!.... I enjoy seeing what the numbers look like. $Beer Chug\'n$

Note: The Performance Trends Engine Analyzer software, typically referred to as a "desktop dyno" has been poo-poo'd by some, probably less educated self-identified "experts".

Of course the results of engine simulation software will most likely not produce the exact same results from a SuperFlow 902S.
Just like an engine tested on a SuperFlow 902S may not produce the same results as it does mounted in a race car and driven on a race track.

However... here our some of the real experts and what they say about Performance Trends' software: http://performancetrends.com/what_our_users_say.htm

I received my first version of EA as a gift about 20 years ago from my nephew who is well-known (among other Mopar engine builders) and owns several rare early Hemi-Cuda's.

I'll be back.

Gnarls.

44newman · « **Reply #29 on:** Sep 10, 2019, 07:04:05 AM »

Ditto , my old dirt car in early 2000's
Thanks for your help

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

44newman [OP]

Related Topics