Here is a few Dyno charts I wanted to share.The first one is our stock motor APS TT shop car with 90,000 miles on it,30,000 on the turbo kit. This car runs consistant 11.5's/11.6's @117-118mph.The dyno represents closed exhaust dumps running through an Injen SES exhaust.The red depicts the same car with no tunning running electronic open dumps!!Notice the 30 or so HP gain

 

This dyno represents a 2006 350Z with about 1000 miles on it, where the owner put an APS 2.5" exhaust,test pipes,Plenum, and AEM Cold air intake with NO TUNNING yet..Not the substancial gain in HP all the way to Redline.

 

Wow open dump gains are sick. How did it affect A/F??

 

Dont know, it didnt read once we opened the dumps.

 

Is the first dyno car on the stock block? If not, what it is running for internals?

 

No WB in the car? No datalogging after?

 

wow nice times jason!

 

How/what do you think the open dump exaust will differ between turbo & supercharging.

Is this open dump exaust (electric) the same thing I keep seeing in the back of the magazines where you hit a swith and the exaust dumps wide open?

 

Jason, you seriously need to drive my car at the track. Those are amazing numbers..I have no doubt you'll punch this bad boy solidly into the 10's. I am such a bad drag racer.

 

you might be a bad driver..but you sure are knowledgable and talented in other things !!

 

Sounds doable shariff. U sure do have the power to get it there. Traction seems to be the big problem .
I got a ride in jason's car.. Holy chit is it nice. The electronic dumps make teh car sound mean as hell. He scared an old lady while boosting ><

 

I will be your first student to sign up.

 

sweet! how much for exhaust dumps? atco this summer jason? teach me to 11's

 

Jason can drive like a mo fo for some reason..What funny is, he weighs about 260lb's and still runs 11.5's in a full stock trim car..could you imagine if he were 150Lbs? He would be at least 2 tenths faster..I have given up in learning how to drive stick, and decided to go with a turbo 400 tranny in my set up.But of course Jay would probably out drive me in that also..And FYI, He really is not ripping it off the line by dumping the clutch, but he still pulled a 1.66 60ft on MT DR's!!

 

Jeez what was your 60' on that run.

edit nevermind just saw it in another post 1.66. Nice. What track was that at?

 

Thats a nice NA gain.

 

Her is another Dyno of a N/A Utec tune we just finished on a G35 4 door..The current mods were Crawford headers,Crawford cats,Crawford plenum,and Stillen Air box and exhaust..The first run the A/F we logged was really lean and the car did not make much power, about 240whp and 225 Tq. Also notice where at about 5000rpms the stock ECM pulled timing cause of knock, due to lean conditions caused by the breathing mods..

Well after we smoothed out the A/F to a nice 13.5 dipping to 12.5 and played with some timing advance, we got the following results: about 260whp (on one of the last runs) and 235 TQ..The car felt night and day and the owner was verry happy with the end results.Just some more proof that N/A mods usually dont make much power without tuning.