Hey guys so I installed h/ci on my 01 camaro and took it to strightline performance in nex Lenox Illinois for tuning. Car is a 2001 z28 stock bottommrnd ls1 auto parts list are ftp 98mm lid 85 gm maf 92mm nick Williams tb fast 92 intake btr stage4 cam kit stage 1 cnc’d 243’s from Texas speed unmilled comp truion ion upgrade Texas speed 1/78 long tubes tsp true duals 42lb intjectors racetronix fuel pump yank 4000 stall transmission is stock 4l60e and a stock gm 10 bolt with a 2.73 gear. Spoke to nick over at straight line and he said car made 451rwhp and 560rwtq is that even possible or is there dyno just that off I asked him what kind it was he said it was a mustang dyno and I was like okay are you sure it made that much power. He said yeah and that is N/A so if someone can help me out to let me know that yeah it is Possiable to make that much power and tq or if someone knows there dyno is just way off thanks guys

 

He didn’t lock the converter. It’s converter flash

 

Darth is right! HP possible, Torque about +140 HIGH at least.

 

Horsepower is in the ballpark, but like mentioned above the torque is more like around 400 or so

 

Being completely honest I think your asking if he locked the converted..?? Correct me if I am wrong And yes that was a locked converted

 

That’s why I posted on here to ask around I was like no freaking way this car made 560 tq

 

Do you know anyone with the same set up and there names cause I was honestly expecting about 380-420ish hp and about 400tq

 

numbers* not names lol

 

Well I'd never base the the results off a dyno number, but my buddy has a setup very similar to yours and made like 450 rwhp and right around 385 rwtq. He's a member on here as well. His username is RollinSScamaro or something very close to that

 

I never really go off dyno numbers either but it’s just nice to know how much power your working with lol really once I get a chance to do a few shake downs then I’ll know where I stand and thanks for in the input

 

Agreed, 560ft-lbs is basically impossible with that set up. Usually on pump gas you will only see 1.2-1.3ft-lbs/ci.

 

I think the HP sounds high as well...IMO
I base that only on your 4000 stall converter and it being unlocked.
I think 450's are possible with a locked converter.

Do you know which 4000 is in it? SS or PT?
The SS is highly inefficient and it if you have it and the converter was unlocked your hp numbers would be in the 480's - 490's with it locked.

And it is odd that they told you it made 560tq. I would think they would know better than that.

 

Dyno's are worthless. This is absolute confirmation. Come on and argue. I don't even think there a good tool for comparison. Take that car to the track. I'm interested to see what you do with those high gears and tall stall! Oh and make sure you get all of your money back and more for your inconvenience!

 

Dynos DO have their place. For comparing before and after mods, as long as conditions are the same, it is a very useful tool. Far more practical than waiting to run at the track between every mod. Track results can be subject to variables too, sometimes more than a dyno. Weather, track surface prep, who blew oil all over that did not TOTALLY get cleaned up, etc.

 

It’s a yank ss 4000

 

well imma try my damn best lol but honestly as long as the car runs good I’m okay with there crack head dyno numbers. And I’m also very exited to see what it does with a tall gear n big stall I read good things on it and I figured it’s gonna blow anyway so let’s try it out something different see if it works

 

I was and am guessing that the converter was not locked. If it was, it might be slipping. A non-supercharged or sprayed NA 346 is really only good for 430-440 lbs torque maximum. Any power gains above that are RPM based.

So, based on your build specs, I think your converter was either unlocked or slipping, which led to an insanely high torque spike (commonly called converter flash) which fell off and your peak power sort of ended up wherever it ended up.