CamaroRacing12

what does a stock A4 LT1 produce for HP? engine? and to the wheels?

matLT1

Stock LT1 is rated for 275hp at the flywheel. Assuming an 18% loss through the driveline with an A4 you are looking at about 225 to the rear wheels.

blacknsilverz

i have a 97 z28 a4 and i was making 241 hp and 281tq 100% stock

matLT1

Its always possible that GM rated the F-bodies engine just a few HP lower than the Vettes for marketing reasons. They wouldn't want a car that is half the price putting out the same hp

CamaroRacing12

so around 250 to the rear wheels?

HardcoreRM125

Around 240 in a A4. Around 250 - 260 in a M6 ... Internet numbers are always high though lol

roughneck427

my buddy last week with a CAI and only an open borla did 249RWHP through an A4 on a dynojet

EuroticCustoms

agreed lol

LT1Mike

ME... Lol... and my OPEN Nasty sounding borla... IT makes the kids go OOOOOOOOOOOOOOHHH.. hahaha

Ray86IROC

Check the LT1 Dyno archive at LS1tech.com: http://www.ls1tech.com/forums/showthread.php?t=303172 Lot of pages to weed through w/ various mods but there are a few stock dynos there. (We should have one of these archives here...)

You'll find 240-250 rwhp seems to be the norm for auto LT1s in good running order. That would indicate to me the Fbody LT1s were underrated and really putting out the same 300ish hp as the Vette LT1s (which they should seeing as the compression, heads, cam, etc was the same as the Vette, just slightly different exhaust and air filter/air intake routing)...