Author Topic: Gnarly4X's 22RE Rebuild  (Read 188283 times)

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H8PVMNT

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Re: Gnarly4X's 22RE Rebuild
« Reply #900 on: May 05, 2017, 10:11:58 AM »
I envy you guys with no emissions test :(

Move :)
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andykrow

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Re: Gnarly4X's 22RE Rebuild
« Reply #901 on: May 05, 2017, 10:14:04 AM »
But I love it here :) Maybe just further up into the mountains where emissions isn't required.
85 4runner, 22re, 5spd, Ultimate crawler, Alcan lift that is too high, 35s, ARBs.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #902 on: May 05, 2017, 07:45:39 PM »
But I love it here :) Maybe just further up into the mountains where emissions isn't required.

andykrow... are you at about 4500 to 5000 feet elevation?  My 22RE's work way better than my 22R engine at elevation.

Colorado is nice, and one of trail runs that I did not get to do, and everyone that I know who went there raved about the trips!  But..you couldn't blow me out of Casa Grande with hydrogen bomb!

I love the sunshine and the desert.  Obviously everything is a trade-off.... every geographic place has pluses and minuses.  The weather is a biggie for me.  On the way home this afternoon my car thermometer read 109 degrees F... felt like it too.

The good news is if we get 2 consecutive days of 100+ degrees, it will kill the flower blossoms... and reduce the "allergy season".

The desert can be a harsh place to survive. The animal life is abundant, but the survival rate is pretty low.  I've saved over a 100 honey bees from drowning in my pool, and a dozen or so baby birds from dying.  Last year I saved a baby Gecko lizard that had his leather egg sack stuck over his head.  He could barely breath.  He was about an inch and half long, very fragile.  I worked on him for about 45 minutes with a pair of cuticle scissors and a tootpick before I could get it off his head.  Funny thing is, he held still for me while I worked on him.

I rescued a baby sparrow on Wednesday. He was barely alive when I scooped him out of the pool.  I wasn't sure he was going to make it.  It took about 30 minutes in my hands to get him warmed up.  After he opened his eyes and started plucking himself, I sat him down in the sunshine on the cool deck and his Momma came almost immediately.  My wife watched him practically all day as the Momma bird fed him and tried to coax him to fly.  He finally flew into a nearby Palo Verde tree for the night just about the time the sun was setting.

I felt really good about saving another one of God's creatures.  I hope I put a nice deposit in my Karma bank.

Gnarls.
« Last Edit: May 06, 2017, 06:01:25 PM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

andykrow

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Re: Gnarly4X's 22RE Rebuild
« Reply #903 on: May 06, 2017, 11:11:46 AM »
Yeah I live at 5200. We have some wheeling that gets up to 13k, and then I'll get down into the 3k area in Utah. Lots of elevation change. When I had a FJ60 that was too much for the jets. It was either good in the high country or good low, I could never get it to handle both. (Plus the mileage was ridiculously horrible for a truck that could barely do 65, haha)

We are very close to being desert here, we see 300 days of sunshine and not a lot of rain. It rarely hits 100 degrees and winter is pretty mild too. It's also never humid. If you need cold air in the dead of summer it's only an hour away. Just drive west and up!

I love the desert though. I get to Utah 2-3 times a year or more. Basically it's where we go on vacation :) I'd consider moving there but the beer situation would be upsetting.
85 4runner, 22re, 5spd, Ultimate crawler, Alcan lift that is too high, 35s, ARBs.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #904 on: May 07, 2017, 04:25:05 AM »
....I'd consider moving there but the beer situation would be upsetting.

Some people I know would not call it "beer"!  :shake:

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #905 on: May 07, 2017, 04:32:28 AM »
.... Currently I am happy with the OS valves and open exhaust and I will never take that any further.


When I compare the stock valves and the 1mm over-sized valves in our current rebuilt engine specs (261C cam), my DD shows only 1 lb. average increase in torque, and a peak increase of 5 HP around 5,400 RPM with the over-sized valves.  That increase is about 3.1%.  So from those numbers, the increase in power is at the top end of the RPM range, and doesn't seem to help that much for torque at the lower RPMs.

SEE ATTACHED EXCEL SHEET.

Compare the numbers from 1000 RPM to where the over-sized valves start to show increase.

The stock valves produce more torque up to 2700 RPMs.

Again... just numbers in a computer program.  :dunno:

Gnarls. :spin:
« Last Edit: May 07, 2017, 09:15:31 AM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Lewis Hein

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Re: Gnarly4X's 22RE Rebuild
« Reply #906 on: May 07, 2017, 11:07:02 AM »
Gnarls,

I have been reading this thread with interest, and one thing occurs to me about your cam that it seems no-body has mentioned. If they have, or you have already thought of it, forgive my repetitiveness.

You have been expressing doubts about the quality of this cam for a while. Others have come along insisting that theirs works fine. I'm not trying to settle this debate -- I'm sure there are people that use these cams with wonderful results.

I have also heard vague accusations around the web that Enginebldr may be cutting corners. I have no knowledge whatever of this, but if it were true, it could explain a lot. If they are cutting corners, I don't think that it would mean their cams are uniformly bad. Instead, they might be non-uniformly great. Put another way, they might not hold good tolerances, so for some particular model, 50% of their cams might be wonderful, 40% good, and 10% duds. It occurs to me that you might have got a dud (especially your much earlier comment that it seemed rough), and the good experience of others with this particular cam wouldn't mean nuthin' to the contrary.

I'm pretty sure you have had similar thoughts to what I just outlined. But coming from an outside perspective (admittedly, one that includes very little general knowledge of engine tuning), this seems like a highly possible explanation.

I am anxious to see what you find out about fuel pressure. By all means, check the cheap and easy things first. But my 2c is not to forget the cam.

Lewis.

P.S. I run a carb

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #907 on: May 07, 2017, 04:31:39 PM »
Gnarls,

I have been reading this thread with interest....

Hi Lewis,

Thanks for your thoughts and observations.

I have also read good and bad comments over the years regarding the quality of engbldr’s quality of parts sold.  But I've read good and bad comments on just about everything I’ve researched on the internet.

It is certainly possible I got bad or defective camshaft.  And, there have been some bad experiences with this camshaft posted here.

Yes, I have considered several possibilities.  Over the years I’ve purchased aftermarket parts from different sources and gotten bad parts.  I think it is way too common with aftermarket parts, probably most coming out of China.

My comments about the visual appearance of the cam are based on seeing 3 other cams for a 22.  The other thing that caught my attention when I installed the rocker rack was how far off the rocker pads were to the cam lobes.
My stock camshaft has rocker pad to lobe misalignment of .030” smallest to .068” largest.  Not one lobe was worn perfectly across the entire width.  But, the 261C cam has several pads that are off the lobe between .108” to .112”, and I posted photos of this.  So I immediately felt there could be a “quality control” issue here… a bad casting.  Even though Tod at engbldr said it's OK, I still don’t think the alignment should be off that much.

The old adage, "You get what you pay for" has been shown to be true with Toyota parts.  Engbldr's prices are lower than most sources for aftermarket performance camshafts for the 20/22s.  :dunno:

I mic’d the camshaft I removed from the old head, and all lobes heights are within FSM spec.

I was not able to remove the rocker rack today, but I will in the next few days.

I wish I was running a carb'd engine!

Gnarls.

« Last Edit: May 07, 2017, 05:16:24 PM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #908 on: May 07, 2017, 05:26:21 PM »
... My main concern is the 3-4.5k range, where the 261 and 252 are nearly identical. This is the high-altitude interstate pass-climbing range. Since my gearing is so low I am not concerned with torque under 2k.

Yes, I see they are nearly identical numbers in that range, with the CC252S pulling a little harder between 4300 to 4800.

Look at the torque numbers for the Compcam and the 261C between 2500 and 3500 RPM.  THAT is the reason I am interested in the CC252S!  Of course, those are just numbers out of computer program.

Gnarls.

« Last Edit: May 07, 2017, 05:33:56 PM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Lewis Hein

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Re: Gnarly4X's 22RE Rebuild
« Reply #909 on: May 07, 2017, 07:36:25 PM »
I figured you'd thought of most of this.... but just the whole sound of that cam makes me really suspicious. Again, I have laughably little experience rebuilding engines, but you get a cam from a supplier with lower prices, it looks funny and the measurements aren't right, and you keep having problems that could be cam-related. It just seems like a really plausible tale.

  But, the 261C cam has several pads that are off the lobe between .108” to .112”, and I posted photos of this...Even though Tod at engbldr said it's OK, I still don’t think the alignment should be off that much

If I read that right the new cam is at least .04" smaller than the old, and considerably more in places. I'm not an award-winning racecar tweaker, but speaking as a machinist, If I'd made any part, let alone an engine cam, that far off it would've gone right to the scrap bin. I literally can't remember the last time I held a tolerance that loose on anything! Of course, I've never made an engine cam, so my knowledge is limited. But the idea of such loose tolerances being "OK" gives my inner machinist fits.

This is just an under-educated opinion. It is subject to instant revision as more knowledgeable say what they think.

Lewis

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #910 on: May 08, 2017, 04:45:50 AM »
UPDATE MAY 8 - AM

Without degreeing* the 261C cam…  and it annoys me to think I should have to go to the extra expense and time to degree a camshaft to prove its specs are correct as published by the supplier.  BUT… that* is the suggested safe bet.

After more physical inspection of the stock cam profile.  Using the typical FSM procedure for adjusting valve lash, the measurement with a feeler gauge will be at the following location on each cam lobe:

From the front - in degrees from base of circle (opposite lobe peak)

#1 Intake….…90
#2 Exhaust…..90
#3 Exhaust….180
#4 Intake……180
#5 Intake……180
#6 Exhaust…180
#7 Exhaust….90
#8 Intake…… 90

Since the noise I’m hearing seems like rockers?, and knowing that the lash measurement on number 1 cylinder, which is done at 90 degrees from lobe peak, measured tighter than cam spec - .007” and .009” - after re-adjusting the lash at the base of the circle.  So… that may indicate that the ramp of the lobe on the 261C starts earlier than the stock cam.
In other words, if the ramp has started at 90 degrees from base, the lash adjustment made at that location will make the base circle measurement looser, a valve lash greater than the cam specs…. possibly causing excessive rocker tick?
In cam profile design, it makes sense to slow the closing of the valve before it hits the valve seat… helping reduce valve bounce and slam noise.

I am assuming the 261C has the same 110 degree lobe center as the stock cam.

The only two cylinders, that are adjusted according the procedure in the FSM that could affect the “correct” cam spec adjustment are 1 and 8.

Tod at engbldr did, in fact, suggest that I adjust the lash at the base of the lobe circle.  So, I will re-check and re-adjust the valve lash at number 1 and 8 cylinders and see if that makes any difference in the noise I’m hearing.  I will also carefully not over-torque the rocker cover.

NOTE:  For those of you who are running aftermarket performance cams in a 20/22 and may not be savvy on this procedure (base circle valve lash adjust), for this engine you only have to do this for number 1 and number 8 cylinders… unless otherwise recommended by the cam supplier.

Gnarls…. that’s just my opinion, it may be worthless.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

andykrow

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Re: Gnarly4X's 22RE Rebuild
« Reply #911 on: May 08, 2017, 09:53:40 AM »
Some people I know would not call it "beer"!  :shake:

Gnarls.

Well, over the 15-ish years I have been going to Utah things are slowly improving. Utah breweries can make full strength now. You just have to buy it in state-run liquor stores. A few years back everyone working in one of these was a deputized sheriff. At the Moab store the clerk usually had a visible gun and badge. And you still can't buy 6 packs or 12 packs, all beer is sold by the individual can or bottle which ends up being 2-3x what we pay in CO.  :shake:

Again, interesting spreadsheet! My butt dyno denies the low torque (haha), but the little bit of highway I have done is confirming what I see over 3k. My truck is pulling hills in 5th around 3k that definitely required a downshift before.

As for engnbldr, I have used the full timing "front end kit" twice and been very happy with the fit and finish. I put 50k-ish on both trucks that had that before I sold them with no issues. This and Ted always being so helpful to me led me to make my purchase. My machinist said the head and cam looked "great" and did not need to clean up the head in any way. Interestingly, he refused to put on the head gasket that I got from engnbldr, insisting that I go OEM Toyota. He said the brand engnbldr included tends to let loose after 30k miles.

Have you gone through everything but the cam at this point?

Can you describe more about the "base circle valve lash adjust" and why that is only done to 1 and 8 intake?

85 4runner, 22re, 5spd, Ultimate crawler, Alcan lift that is too high, 35s, ARBs.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #912 on: May 08, 2017, 11:03:31 AM »
...
Can you describe more about the "base circle valve lash adjust" and why that is only done to 1 and 8 intake?


Yes... when adjusting valve lash per FSM, those two cylinders will be at 90 degrees on each peak cam lobe.  The other 6 will be located at the base of circle.  I'll post a photo tonight.

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

andykrow

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Re: Gnarly4X's 22RE Rebuild
« Reply #913 on: May 08, 2017, 01:00:44 PM »
Well, just went through emissions and failed pretty bad on NOx. 33% higher than the allowable level. HC was SUPER low at 2% allowed, CO very low as well at under 0.5% allowed. My thinking is that I am lean.

Plan is to replace all vacuum hoses (not sure why I didn't do that before, they just all looked fine.), back the timing down to 0 degrees, and possibly move the AFM a click or two towards rich. It certainly looks like I have some room to move in that direction. Based on HC and CO. It has a new catalytic converter so that should not be hurting anything.

If I fail again after that I'll start my own thread on it, haha.

EDIT: Went ahead and started a thread. Don't want to hijack your engine issues, Gnarly.
« Last Edit: May 08, 2017, 02:28:34 PM by andykrow »
85 4runner, 22re, 5spd, Ultimate crawler, Alcan lift that is too high, 35s, ARBs.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #914 on: May 08, 2017, 07:56:28 PM »
Hey andykrow...

That's OK, I've been hijacked before!!  :gap:

Your emissions failure due to high NOx may be related to my issue???

As you already know your high NOx is typically caused by a lean mixture.

I'm really hoping this 261C is not the cause of what I so far see as a lean mixture.

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #915 on: May 08, 2017, 07:57:50 PM »
Yes... when adjusting valve lash per FSM, those two cylinders will be at 90 degrees on each peak cam lobe.  The other 6 will be located at the base of circle.  I'll post a photo tonight.

Gnarls.


If I adjust valve lash for #1 and #8 cam lobes, per the FSM procedure the lobes for both cylinders are positioned the same, so I would be measuring with the feeler gauge on the beginning of the ramp on the flank of the lobe or at 90 degrees from the nose of the lobe.  That area is where I believe the 261C seems to start it's duration, and of course on the exhaust lobe, where it would end its closing of the valve.  Does that make sense?

Naturally, I could be totally full of Bravo Sierra! :yikes:

I know, I know... I should just invest in a cam degree wheel and other tools necessary!!

Gnarls.
« Last Edit: May 08, 2017, 08:09:45 PM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

andykrow

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Re: Gnarly4X's 22RE Rebuild
« Reply #916 on: May 09, 2017, 09:18:55 AM »
Okay, so basically #1 and #8 intake could be a little on the tight side. Have you re-adjusted for this yet?

EDIT: brain fart, they would be a little on the loose end of things. decrease overlap, yes? What is the effect on mixture?
85 4runner, 22re, 5spd, Ultimate crawler, Alcan lift that is too high, 35s, ARBs.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #917 on: May 12, 2017, 02:56:10 PM »
Update May 12th, Friday

I have been delayed to get to work on my truck.  I have ordered the LCE Fuel Pressure Gauge Kit for the 22RE.  I still need to check the valve lash adjustment.  I will also do the same test on the EGR as andykrow has done.

I hope to work on it late next week.

Gnarls.


« Last Edit: May 17, 2017, 07:30:00 PM by Gnarly4X »
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #918 on: May 17, 2017, 07:32:43 PM »
Update May 17th, Wednesday PM.

I just received my new LCE Fuel Pressure Gauge. 

I didn't realize that it is NOT to be a permanently installed gauge, just for testing then remove it.

I will try to get it installed, test the fuel pressure and post a report.

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

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Re: Gnarly4X's 22RE Rebuild
« Reply #919 on: May 17, 2017, 07:38:13 PM »
Please let us know what the thread sizes are for the banjo bolt (12mm x 1.5 ? ? ?)  so the rest of us can be frugal........



 :wave:
Ed
SoCal
86 SR5 XtraCab
22RE  W56B
31x10.50R15

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #920 on: May 17, 2017, 07:43:10 PM »
Please let us know what the thread sizes are for the banjo bolt (12mm x 1.5 ? ? ?)  so the rest of us can be frugal........

 :wave:

I will.

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

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Re: Gnarly4X's 22RE Rebuild
« Reply #921 on: May 19, 2017, 06:04:13 PM »
Again, interesting spreadsheet! My butt dyno denies the low torque (haha), but the little bit of highway I have done is confirming what I see over 3k. My truck is pulling hills in 5th around 3k that definitely required a downshift before.

I completely agree with no low end with the 261 cam. On my way from Utah to Montana and home to Washington any time the RPM'do went below 3k I was down shifting.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #922 on: May 19, 2017, 06:10:03 PM »
I completely agree with no low end with the 261 cam. On my way from Utah to Montana and home to Washington any time the RPM'do went below 3k I was down shifting.

Well.. that drop you experience is supposed to be the "increase"... its touted as a "crawler" cam!  Does the 6 degrees of overlap in a 22RE cause the drop in torque in the lower RPMs??????   :dunno:

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

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Re: Gnarly4X's 22RE Rebuild
« Reply #923 on: May 19, 2017, 06:17:36 PM »
Look at the torque numbers on this Excel sheet produced by Engine Analyzer - from off-idle to 3,000 RPM for the 261C compared to the stock cam, and the other profiles.

Mudder, do those torque numbers seem close to what you are experiencing?

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

H8PVMNT

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Re: Gnarly4X's 22RE Rebuild
« Reply #924 on: May 20, 2017, 03:07:38 AM »
The Schnieder is interesting too.
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Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #925 on: May 20, 2017, 04:20:04 AM »
The Schnieder is interesting too.

Yes... that Schneider cam is showing some very strong torque numbers from 1K.  It also shows slightly more torque and HP from 4000 to 4500 RPM.  That range is where extra power would be nice when I have had to shift down for long uphill freeway climbs.

I'm tempted to buy that cam as my first cam swap "test".  I've been told by one Toy engine builder that those differences in numbers, produced by the cam, will not be noticeable in my butt-dyno without specific head modifications - larger valves and flow-tested porting.

Gnarls.



1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

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Re: Gnarly4X's 22RE Rebuild
« Reply #926 on: May 20, 2017, 11:05:19 AM »
Look at the torque numbers on this Excel sheet produced by Engine Analyzer - from off-idle to 3,000 RPM for the 261C compared to the stock cam, and the other profiles.

Mudder, do those torque numbers seem close to what you are experiencing?

Gnarls.

If that were accurate it would explain why I prefer the stock cam over the 261. I do disagree with it going all the way to redline as over 4.5-5k the cam just falls flat on its face.

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #927 on: May 21, 2017, 09:07:43 AM »
UPDATE MAY 21, Sunday AM

I tested the fuel pressure according to LCE's site:

EFI 22RE:
Disconnect the vacuum hose from the fuel pressure regulator and plug it, you should see 38 – 44 psi
Reconnect the vacuum hose to the fuel pressure regulator. Measure the fuel pressure at idling you should see 33 – 38 psi.
Stop the engine. Check that the fuel pressure remains above 21 psi for 5 minutes after the engine is turned off.
If pressure is high, replace the fuel pressure regulator.
If pressure is low, check the following parts:
• Fuel hoses and connections
• Fuel pump
• Fuel filter
• Fuel pressure regulator

And it passed all tests.

1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

Gnarly4X [OP]

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Re: Gnarly4X's 22RE Rebuild
« Reply #928 on: May 22, 2017, 06:30:12 AM »
If that were accurate it would explain why I prefer the stock cam over the 261. I do disagree with it going all the way to redline as over 4.5-5k the cam just falls flat on its face.

Hey Mudder,

Can I assume that you have checked out other possible causes for your engine to "fall flat on its face" at around 4500 and 5000 RPMs?  Or.. are you convinced its the 261C cam?

Have you talked to Tod or Ted at engbldr?

How many miles on your rebuild?

Are you planning to change the cam?

Thanks,

Gnarls.
1986 XtraCab SR5 22RE 5speed W56B, ~26,000 MI after break-in, DIM (Did It Myself) rebuilt engine - .020" over, engnbldr RV head, OS valves, 261C cam, DT Header. https://imgur.com/oACTHTR

H8PVMNT

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Re: Gnarly4X's 22RE Rebuild
« Reply #929 on: May 22, 2017, 07:45:33 AM »
Well that rules out fuel pressure.
“I would rather wake up in the middle of nowhere than in any city on earth.”
– Steve McQueen

"Except for maybe Seattle."  -H8PVMNT

"I plan to hit 300k in this truck"  :)bestgen4runner

 "I'm jealous of your shop. It has concrete and doesn't smell like pickles like the old shop  "  300K

 
 
 
 
 

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