Topic: 22re "performance" cam questions.

[redrocket93]

I'm thinking about buying a 22re equipped truck with a "performance" camshaft in it.  Are they supposed to have a rough idle to them?   I work on stock 22re trucks everyday, but have very little experience with a cammed one.  The truck sounds great off idle and at higher RPM's.  It also has a Header.  Also does fuel milege suffer with these cams?  If it does I'll prabably end up putting a stock cam back in it.

[brainlessfool]

if it's a big cam, it will hurt mpg. if it's not to big mite be just fine. any idea how "big" it is?

[KDXSR5]

I put a .440 lift cam in my 22re I built a few months ago, and although I have yet to start it, i am sure its going to have a lope to the idle My MPG went up when i put on a header, but I am willing to bet MPG will go down with a big lopey cam.

[79coyotefrg]

I'm thinking about buying a 22re equipped truck with a "performance" camshaft in it.  Are they supposed to have a rough idle to them?   I work on stock 22re trucks everyday, but have very little experience with a cammed one.  The truck sounds great off idle and at higher RPM's.  It also has a Header.  Also does fuel milege suffer with these cams?  If it does I'll prabably end up putting a stock cam back in it.

yes if its a .440 or .460 lift it will have a lope at idle

my mpg actually improved by 1mpg because i had  such improved power
i have a LCengineering stage 2 race cam, .460 lift, 290 duration
listen to my truck http://www.mhdfl.com/forum/Glens-truck.mp3

watch my truck here http://s237.photobucket.com/albums/ff237/templefork/glen/?action=view&current=100_0578.flv

[Redbeard1]

The lope at idle will all depend on the lobe seperation on your cam. The closer the seperation the more lope you will have. The lope actually robs horse power because of the valve over lap (both intake and exhaust open at the same time), but it does improve the scavenge effect in the cylinder. so if you can find a high lift cam with a 110*-114* lobe seperation you can build more power than  with a 102*-108* seperation. good luck finding that with out having it custome ground.

[Duffil]

most Toy cams are ground 108 or 110.

http://www.lcengineering.com

[shmedly]

I'm thinking about buying a 22re equipped truck with a "performance" camshaft in it.  Are they supposed to have a rough idle to them?   I work on stock 22re trucks everyday, but have very little experience with a cammed one.  The truck sounds great off idle and at higher RPM's.  It also has a Header.  Also does fuel milege suffer with these cams?  If it does I'll prabably end up putting a stock cam back in it.

I was told the cam I got is the TRD stage 1 (Crane cam) it has a lope to it. But the mileage seems to be a little better. The power on the freeway hills...ALOT better. Did my first bit of crawling with it since the upper end rebuild, and the lope didn't really get in the way with the slow speed..

[79coyotefrg]

TRD stage 1

[79coyotefrg]

The lope at idle will all depend on the lobe seperation on your cam. The closer the seperation the more lope you will have. The lope actually robs horse power because of the valve over lap (both intake and exhaust open at the same time), but it does improve the scavenge effect in the cylinder. so if you can find a high lift cam with a 110*-114* lobe seperation you can build more power than  with a 102*-108* seperation. good luck finding that with out having it custome ground.

hmm  i dont agree with that,  my engine has  plenty of low end torque  , LOTS of lope, and  awesome power up to 5500 rpm

20R/22R - Stage 2 Camshaft
4WD / Pre-Runner / Hot Street 2WD (1500-5500 rpm)
Modified Carb or Throttle Body & 1 1/2" Header

   Intake    Exhaust    
Valve Lash    .008    .012    
Valve Lift    460    460    
Advertised Duration    290°    290°    
Duration @ .050"    240°    240°    
Lobe Center    102°    118°    


Intake Opens    18° BTDC    
Intake Closes    42° ABDC    
Exhaust Opens    56° BBDC    
Exhaust Closes    4° ATDC

[KDXSR5]

TRD stage 1

I got one for free when i went to toyota one day, and we put it in my friends truck, and it was LAME. Barely any more power than stock and not very lopey at all.

[Plekto]

It depends how you drive it.  Babying my old header and exhaust setup got me 18mpg.  Now I drive 10mph faster and get 18mpg, or 20-21 if I baby it.

More power available but using less of it(driving no faster) always gets you better gas mileage.  Plus, that power is there for passing and the like.  Even 10HP is a huge deal with engines this small.

[shmedly]

I got one for free when i went to toyota one day, and we put it in my friends truck, and it was LAME. Barely any more power than stock and not very lopey at all.

I def. have better pull on the freeway, and there is a BIG difference over stock! (and lopey) I found out so far the MPG is a little better. I don't have numbers on the MPG yet. But I'm getting more miles on the same amount of fuel. (Approx 10 more miles..) I'm not putting my foot in it as much and getting the same power. 2cts

[OHToyguy]

  will someone please tell me why i have NO power when i did a total rebuild on my engine and put a Comp Cam in it!?!? i converted an 84 22r runner to an 86 22re P/U. it had tons of power but a bad miss upon fire up. was told to put an EFI distributer on it (i had my old 84 distributer on it). this took away the miss, but i noticed it revved slower. when i drove it it had no balls. its a total turd!  it won't even pull 4th gear!!!! it went from 5th gear all day (on 36's) with a terrible miss to struggling with 3rd running smooth. i'm lost! we have adjusted the timing several times with no help at all

[porkchop]

I put a 20 r dist. in my new 22r build with cam from EB and it really come to life. I am sure the porting and polishing on the head and intake did not hurt anything either. Stupid question probally but when I go to propane how will that affect my performance if any?

[LOL @ IFS]

will someone please tell me why i have NO power when i did a total rebuild on my engine and put a Comp Cam in it!?!? i converted an 84 22r runner to an 86 22re P/U. it had tons of power but a bad miss upon fire up. was told to put an EFI distributer on it (i had my old 84 distributer on it). this took away the miss, but i noticed it revved slower. when i drove it it had no balls. its a total turd!  it won't even pull 4th gear!!!! it went from 5th gear all day (on 36's) with a terrible miss to struggling with 3rd running smooth. i'm lost! we have adjusted the timing several times with no help at all

How's the spark timing?  It's good?  Are you sure?  Go check it again...

[87funner]

I have an 87 Runner 22re. They guy I bought it from over a year ago told me his brothers friend owned the truck before him and installed a header and a "racing" cam. I've contacted the previous owner a few times regarding the cam to figure out what cam is installed. It has stock exhaust and cat on it but it sounds wicked.
I was going to adjust the valves and I'm not sure what specs to use with the advanced cam.  I need to get in there soon to check it out because I think one of the exhaust valves may be damaged.
I started having some issues with it running ruff and backfiring while coasting then coming lightly into the throttle. The tachometer falsely jerks all over the place from 0 to 7k with this problem as well.
I have a list of stuff to troubleshoot before the valve job such as the TPS, distributor, ignition coil, temp and o2 sensor, EGR valve, and ICM.
So question is what specs should I use for the valve job? I guess I threw the drivability issue out there as well just in case you had the same problem last week and you have some good advice as where to start. I'm starting with the TPS tomorrow.

[emsvitil]

You couldn't have waited a month until thread was officially dead for 10 years  ?




 

[87funner]

New to this stuff. I wasn't sure if I should've started a ne thread or not.

[kneedownnate]

Go ahead and start a new thread