87 GN,
Stock 170k mile motor with valve springs.
(turned over 170,000 today on the way there)
Hooker catback + test pipe
Walbro 340 + hotwire & AFPR
Turbotweak chip burned for 91 octane.
K&n & 3" maf pipe
Everything else is stock.
16psi of boost, converter unlocked.
best run was at 41psi of base fuel pressure, no knock, 12:1 AFR
Car made 321ft/lbs of torque, and 238hp right when it hit full boost (maybe a tiny spike). The car made these numbers around 3800 rpm, then stayed pretty much flat up to 5000 rpm where we shut it down....
Do these numbers sound about right? It seems that it should continue to build power over 3800 rpm I'll scan the dyno sheet in and post it up.
Stock 170k mile motor with valve springs.
(turned over 170,000 today on the way there)
Hooker catback + test pipe
Walbro 340 + hotwire & AFPR
Turbotweak chip burned for 91 octane.
K&n & 3" maf pipe
Everything else is stock.
16psi of boost, converter unlocked.
best run was at 41psi of base fuel pressure, no knock, 12:1 AFR
Car made 321ft/lbs of torque, and 238hp right when it hit full boost (maybe a tiny spike). The car made these numbers around 3800 rpm, then stayed pretty much flat up to 5000 rpm where we shut it down....
Do these numbers sound about right? It seems that it should continue to build power over 3800 rpm I'll scan the dyno sheet in and post it up.