The tuner that the shop uses is supposed to be real good with cobalts,so we will see what happens next time.

 

damn...

 

a 2.75 without meth?

heat soak likely killed your numbers after multiple passes

 

What the hell are you talking about???? He was on a Dyno Jet and was getting lower numbers than the mustang dyno. So where do you pull this magic 255whp from??

The low number is from the tune. I consistently see 260 whp out of SS/SC and IRL's with similiar mods and stock exhaust. Woops! missed you dont have Meth Inj. Your probably making a ton of heat and pulling alot of timing.

 

Thats what i'm hoping for.

 

well unless he changed his text initally he stated it was a mustang dyno somewhere in the thread. I re-read it but I didn't see it anymore.. either way.. the numbers are right on par with what should be running. don't get your panties in a bunch negative nancy.

 

get atleast a dual pass in there with ur extra. h.e that will help and then meth. or the opt b or the stumod

 

Here are the graphs

 

somthings not right maybe heatsoak like stated, on a dynojet at impo-performance i pulled 246 on stage2 tune , 2.99, I/H/DP/E, H/E, ported n polished TB

 

Well i did have to drive 30min. to the shop and as soon as i got there they put me right on the dyno.I don't know if this makes a difference but they did not put a fan on the car either.

 

that will do it the fan not only keeps the car cool but some what mimicks driving your heat exchanger has no air flowing through it to cool. its like reving your car in traffic yea its gonna get hot

 

I'm going to ask next time to put a fan on it.

 

Don't blame it on a fan or anything. You have just been taught a dyno lesson..

Every dyno reads different as you saw today, but from what you say your last pull seems pretty realistic.

 

Oh i'm not blaming it on the fan,i'm just going to ask if they can put one on next time i go.When i thought about it some more 241whp is about 285hp to the crank so thats not to bad.

 

241 sounds about right. good numbers

 

on an ss/sc the 3/4th gear dyno aren't going to be that far off.. HOWEVER on a 2.2/2.4 a 3rd gear dyno is the better one to do .. as 3rd gear is like 1.08 ratio as opposed to 4th which is like .83 or so

never the less your car was definitely heat soaked .. get some more cooling mods and you'll be better off

 

I plan to