I just got back from getting my car dyno'd after throwing a few mods on it. Came home with some disapointing numbers. I only gained 30hp and 30 ft lbs from long tubes, ORY, EWP, Under drive pullies and a tune. Does that seem right or do you think something is off?



...I feel like buying an LS1 right now lol.

 

Sounds good to me.

 

The numbers are a little low. What was the a/f ratio? How many miles are on it?

 

numbers are pretty close to being right on.
What exactly are you disappointed about?

your lines dont look good though as the rpms rise..and i cant see your air/fuel with that photo. maybe a missfire or something going on.

 

I say 30 HP increase is about right for those mods, but is it me or do those numbers look a little low??

 

Well, considering that stock would be around 240+-, a 30 HP increase would put it at around 270-280, so seems like 289 is pretty good. Am I missing somehing here?

 

I guess your right, I am just used to looking at Mustang dyno graphs... They read a little higher...

 

Seems right. I made a bit more tq than you, but a few less ponies when I had long tubes. Time for heads / cam / n20 / supercharger.

 

Just curious, did your tuner know that you had a bored MAF? Don't know that it is necessarily beneficial for the PCM to get inaccurate readings of the air passing though a bored MAF sensor.

 

Actually, I believe the Mustangs read around 10-12% lower. Could be wrong about that.

 

Did Pampena do the tune or is that a mail order?

 

The reason you're disapointed is because you've set your expectations too high. It happens very often.
289 RWHP for a bolt on automatic is very good. You are getting knock retard though.

 

When my car was bolton only I ran a 12.6 with the same numbers that you have.The automatic LT1`s look like crap on the dyno but they run nice at the track and that is what matters

 

1.6 RR's could be a good investment to allow the HP to continue to climb in the higher rpm range; your HP falls off significantly beyond 5,250 rpm.

 

Actually Mustang dynos read lower...