When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I just got a call from Hardtopguy. My aftercooled, Comptech 'charged engine put out approx 288 hp completely untuned with stock plugs(50k miles). They then put on the 7lbs pulley from Tech2. I believe the number came back at 310 hp. It is my understanding that nothing but the pulley was changed. That's 22 hp for $140.
Tomorrow I will have my car and the dyno graphs. Sorry, but I couldn't wait until tomorrow. I'm anxious to drive her in her second life. For those that might wonder, my baseline dyno was 196.2/136.x. I believe the torque after install is in the 190's.
This graph is of before sc and after sc w/ 7lbs pulley, only bumping up fuel pressure.
I dynoed 286 untuned. I'm also running rich, but throughout the powerband. I think my next upgrade will be the 7 lb pulley. All I want is over 300 rwhp and I'll be happy.
did u just slap the pulley on? did u adjust the fuel prussure at all? i have had this pulley for months now and afraid to put it on without some sort a engine management. how lean where you running? any different from the 5.5 psi pulley?