I think I have a new record for the most HP lost NA.

I dyno'd 249.6whp with test pipes, JWT Pop Charger, and KJR Pulley. I also had an exhaust leak...

I dyno'd today with the same mods above plus the mods in my sig and dyno'd 26whp less. Talk about depressing...

I'll post the dyno charts but I did get an AFR readout on the dyno today. I think my AFR went to 12.2 at redline but I'll post a dyno once I receive the sheet.

 

Same dyno? What kinda conditions we talkin about? Dry winter night on first dyno vs. 90 degree weather just after a rain?

 

how do you know if you have an exhaust leak?

 

i know how you feel, i lost 20whp! Same mods same brand of dyno, on a cooler day

 

Your quest for horsepower is going the wrong way.

 

thats why im parting out and going fi. Im tired of dropping hundred of bucks on pipes and not getting any return.

 

I've lost like 12whp but gained like 6 wtq. If your driving habbit change, your power curve will change according. If you have a leak, that's a different story.

 

Same dyno but it was about 40 degrees hotter.

My friend with the same mods dyno'd 20whp more than me but still dyno'd 4whp less than he did last time and he only had exhaust at the time.

I shouldn't have an exhaust leak this time. Last time I had a leak from the stock manifold to test pipes.