TSP torquer cam, 233/233 .589" 112 lobe

lid, maf ends, ported TB, LS6 intake, ud pulley, LTs, dynomouth

untuned....372hp
tune...382hp 375# torque (sorry...had to correct that...torque was skewed due to spike when the clutch slipped)
you could see a spike up at about 5800 where the clutch slipped...time for a Spec 3 or 4. not to mention he drove it 40miles to the dyno and did it right away...so it was well warmed up.

has a pretty nasty lope to it, first 10 sec or so of start up it searches for idle, but then smooths right out.

drove it through some nasty traffic on the way home...ran good. little getting use to for the shift points. was able to set the cruise at 55-60 in 6th gear and cruise PERFECT.

i'll post the dyno graph tomorrow and i'll let you know what the gas milage is cause i have a 300mile trip to get home.

definatly lives up to the name "torquer"....almost 400#s

 

nice.


do you think your maf ends are hurting you at all?

 

Good numbers. Was this with LS1 intake I take it?

 

ls6 intake.

 

great numbers

 

working on getting the dyno graph loaded.

i originally had 392# torque listed, but that was the reading at the top of the spike when the clutch gave out at 5800rpm.

i adjusted that...it's right around 375#s at just under 4000rpm

both runs were pretty warm out...85deg and 88deg...so on a cooler day i think it would dyno better.

i'm pretty happy with the results, still gotta fill the tank to check milage, but it seems to be pretty much the same. i drove 80mph for about 200miles and 55 the rest, with about 20 mins of barely moving construction traffic in the middle. i am at about 2/3rds tank and a total of about 300 miles.

 

dyno graph

sorry it's so small...

can't wait to put a new Spec 3 clutch on it. i'm leaning towards an aluminum flywheel or a lightweight billet steel. i don't drag it so i would enjoy the faster reving and it would net me a few more hp due to less mass.

my quest is 400hp to the wheels.

i think with better conditions and the light flywheel i'd hit 390 easy. maybe i'll add an electric wp for a few extra ponies...
oh wait...i gotta pay off this round of mods...then the clutch...then....

 

i don't think the maf ends are hurting me. typically they throw off the tune because they cause a rich/lean condition on stock tuning.

but it was dyno tuned, so the a/f ratio was adjusted.

mind you this was just a quick tune, i think it would get better on a hotter tune. but i needed it good and reliable. i'll try for a better tune when (if) i get heads.

what do you guys think i'd get with a good set of heads...say that flow ~300cfm on the intake at .600"???
i'd like to see 425 to the wheels....think it's possible?

 

The conditions you dynoed in were pretty close to SAE (1.00 and 1.01 CF). You won't see any more SAE power in better conditions because the dyno will give you a <1 CF and you'd end up with the same SAE numbers. Only way you will see better numbers in better conditions is if you were getting knock and timing was being pulled during your runs. Given the conditions, I doubt that was the case.

However, you will gain power w/a good tune. You are way too lean...looks like you were right around 14:1 the whole pull. Get the a/f down to ~ 12.5-12.6 in the lower RPMs and lean it out to around 12.8-12.9 up top. Should pick up another ~ 10 rwhp.

 

carter has done ALOT of work with these engines, and he mentioned something about alot of guys will tune it richer than he has it. but he said he doesn't like to do that.

i'm sure he has his reasons, and i trust him.

i'm happy.

 

I don't want to argue with you, but there is absolutely no benefit to running 14:1 at WOT.

Running that lean causes the motor to run hot and detonate (especially in hot locations like Florida). Running that lean is killing your torque down low and robbing you of ~ 10 rwhp. You may trust him, but he's wrong.

 

great initial results! I do agree that 14:1 AFR is too lean. If the wideband O2 sensor is working properly, the car will be SAFER with a 13:1 AFR. This is the AFR target when we tune a car at our shop. Lean is definitely mean, just ask the pistons.

Feel free to give me a call or e-mail me at trevor@texas-speed.com if you have any questions or concerns. We're here to help!

Trevor
Texas Speed & Performance

 

thanks guys

i guess i'll see what i can do about finding an inexpensive Maf translator on ebay or something.

not doing much with the tune is probably due to him having to mess around with who to take it to. his normal shop was giving him the run-around and i was driving 400miles to pick the car up THE NEXT DAY! so i kindda put him under the gun as far as that goes.

 

Hey guy's,
The air fuel is actually at about 13.2-13.4 but I did not save that run because the clutch slipped so bad..those runs are the initial pulls. 14.1 is way too lean I agree..most people set em at 12.8-13.0 i like 13.2ish and that's what it is now.Jeff, I am impressed with that camshaft for sure man and I am glad your happy with it.

Carter

 

When you look at heads check out the flow numbers at YOUR lift. Who cares what the .600" flow numbers are if you never see that much lift. Also, check out the velocity. Just because heads have been hogged out to the size of a mammoth's trunk doesn't mean they'll make good power in your RPM range.