View Single Post
Old 09-07-2011, 10:53 PM   #1
musclecargirl
 
musclecargirl's Avatar
 
Drives: 2010 2SS CGM w/IO Interior
Join Date: Jun 2009
Location: Fayetteville, GA
Posts: 290
All these mods and only 1 HP gain?

First, some background:

Two years ago, had my STOCK car (L99) dyno-ed.
Temp was in low 80s, humidity was 4%.

Two weeks ago, had my modified car TUNED (engine and transmision) and dyno-ed. Dyno shows I gained 1 HP and 15 ft. lbs torque.
Mods include:
- After market intake.
- Shorty headers.
- Highflow Cats.
- Catback exhaust.
Temp was low 90s and humidity was approx. 40%.

Real happy about the increase in torque. A little surprised by the HP results.

The shop attributed the lack of HP gains on the dyno to the temp and humidity. They suggested I bring the car back when the temps are lower and the humidity is lower for another dyno (which I plan to do).

I'm sharing this for a couple of reasons:
- I don't have the knowledge to either agree or disagree with the explanation provided for the HP dyno results. I'll know for sure when I take it back in about 2 months.
- Let others who might be considering mods/tune know to be careful about setting realistic expectations of what those mods/tune will get you (if you're expecting HP gains).

I'm happy with the mods and the tune. The car finally sounds like I want it to and the AFM is gone! Haven't driven it enough yet to know if there's any noticable impact on gas mileage.

If you've had a similar or different experience, I'd be interested to hear about it.
musclecargirl is offline   Reply With Quote