[19Nasty1le]

So I had the car dyno’d today just to get an idea the numbers it has a Roto Fab and Corsa Extreme+ Catback are the only 2 mods. I’m happy with the HP but the Torque seems like it’s low by 75-100
Car was in Touring Mode with TC off (single press) 4th gear pull on a 6speed ZL1

Could it be air in the S/C?
Touring mode TCM limiting it?
Spinning?
Bad read on the clamp from dyno?

[Joshinator99]

Originally Posted by 19Nasty1le

So I had the car dyno’d today just to get an idea the numbers it has a Roto Fab and Corsa Extreme+ Catback are the only 2 mods. I’m happy with the HP but the Torque seems like it’s low by 75-100
Car was in Touring Mode with TC off (single press) 4th gear pull on a 6speed ZL1

Could it be air in the S/C?
Touring mode TCM limiting it?
Spinning?
Bad read on the clamp from dyno?

596 WHP is a pretty happy dyno number for a stock ZL1 but probably typical for a dynojet. If you can find a load-bearing dyno (Mustang is the most common) then those numbers tend to be more accurate (lower than a dynojet).

[arpad_m]

Yeah, that horsepower number on a ZL1 is a bit exaggerated... he does have a point about the (midrange of the) torque curve, though.

The LT4 should have almost the same torque at 4000-4400 rpm as it has hp at 6400-6500 rpm, and both curves should have more of a bend than his graph shows, with both essentially linear and torque basically a flat line that feels "clamped" between 2500 and 5000 rpm.

[KingLT1]

Those are not uncommon numbers for a manual car in STD. They tend to dyno higher than A10 stuff. I agree the torque is low, but without a data log it's hard to say. Maybe try a little VP octanium and see if the torque comes up. You might be getting KR through the peak torque area.

[SOCAL.M6.ZLE]

Originally Posted by 19Nasty1le

So I had the car dyno’d today just to get an idea the numbers it has a Roto Fab and Corsa Extreme+ Catback are the only 2 mods. I’m happy with the HP but the Torque seems like it’s low by 75-100
Car was in Touring Mode with TC off (single press) 4th gear pull on a 6speed ZL1

Could it be air in the S/C?
Touring mode TCM limiting it?
Spinning?
Bad read on the clamp from dyno?

I am not a dyno expert... but I agree those numbers are off. Your peak torque and peak HP should be very similar with your simple mods. Your torque does not look like wheel slip, I assume it is dyno issue. Like KING said, a data log would help eliminate any vehicle issues. Do you have HP Tuners? or a Banks iDash Data Monster?

[SOCAL.M6.ZLE]

Here are a few of my old graphs for comparison.
First with Headers + E50
Second after H/C
Last one is current minus the Big Gulp.

[19Nasty1le]

The car is going in for a pretty decent build so this was just me wanting a baseline, I agree a data log would’ve told us what was going on but it was just a open dyno day for people to quickly see some numbers. I just felt a little confused the torque being so low when I’ve seen stock cars putting down as high as 605/600 as seen on a RPM video. I was probably the 10th or so car to run so maybe a dyno issue, just was trying to get some input as this is my first dyno run experience with the ZL1.

[RobZL1]

I've seen the same when my clutch was slipping. If you have a log of the dyno run (or any log of a WOT run), you can plot rpm vs speed and see if it's linear or not.

[nighttowl]

My car is cammed with a 10% pulley and headers at 652 rwhp on a mustang dyno.

I dont know how its possible to get 60+ rwhp from an airfilter and catback.
I would say the torque was the only correct graph.

[clg82]

Originally Posted by SOCAL.M6.ZLE

Here are a few of my old graphs for comparison.
First with Headers + E50
Second after H/C
Last one is current minus the Big Gulp.

Socal never misses a chance to post his dyno sheets.....

[KingLT1]

Originally Posted by nighttowl

My car is cammed with a 10% pulley and headers at 652 rwhp on a mustang dyno.

I dont know how its possible to get 60+ rwhp from an airfilter and catback.
I would say the torque was the only correct graph.

As I just posted...MANUAL cars using STD correction on a dynojet often dyno 570-580whp bone stock. using SAE correction that would be 560-570whp. A10's normally dyno 540-550whp SAE.

Your car is reading low likely due to the dyno. A cam, pulley, headers car should make 700+ whp SAE on a DJ. What did it baseline before the mods?

[SOCAL.M6.ZLE]

Originally Posted by clg82

Socal never misses a chance to post his dyno sheets.....

HAHA, Honestly, I think I need an low-side and Xport before i'll numbers to brag about... now my signature on other hand HAHA

[SOCAL.M6.ZLE]

Originally Posted by 19Nasty1le

So I had the car dyno’d today just to get an idea the numbers it has a Roto Fab and Corsa Extreme+ Catback are the only 2 mods. I’m happy with the HP but the Torque seems like it’s low by 75-100
Car was in Touring Mode with TC off (single press) 4th gear pull on a 6speed ZL1

Could it be air in the S/C?
Touring mode TCM limiting it?
Spinning?
Bad read on the clamp from dyno?

Ok, so I have consulted with some DynoJet experts, and they said the issue was that you didnt have, the GMS Stage.I cooling package.



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[Joshinator99]

Originally Posted by SOCAL.M6.ZLE

Ok, so I have consulted with some DynoJet experts, and they said the issue was that you didnt have, the GMS Stage.I cooling package.



Use discount code CAMARO.6 for $100 off!!!


www.griffim-motorsports.com

You misspelled your own website lmao