NotFingflyinnow

So Im really confused about this.... I have a 1990 GT5speed, I always thought it was pretty quick, nothing special but up to par. This past week after spending some time with a friend of mine I realized his 1990 LX 5speed has alot more power.... Both of are cars are practically stock with the exception of aftermarket exhaust.

The only think I know of is that he has replaced his heads with a new set of OEM heads due to a loss in compression... so Im thinking maybe I should do a compression check on my heads too?

Why else could he be hitting higher RPM's faster and be making more power/speed then me?

Any Ideas?!

BLK89GT

look at the diff in miles! why did he replace his heads with oem? you canget a set of gt40 heads pretty cheap and a good cam then you will smoke his A$$!!!!!!!! i dont know the exact numbers but the lx dosnt weigh as much as the gt!

mjr46

lx is lighter for one and an exhaust would help him out greatly

rmodel65

have you done all the cheap/ freebie mods? bumped timing short belt, k+n, c+l ? these are cheap and a fairly decent boost. any chance he has gears and doesnt know it? compare his rpm at a certain speed to yours maybe he does but it will be a quik comparison

lxman1

Maybe his has optional 3.08 gears and you have 2.73's.

NotFingflyinnow

Thanks for the heads up on the optional gear differences... Ive done a few mods like exhaust and a CAI, but like I said we both sit pretty much stock...

5spd GT

There is a small difference of weight between the LX and GT.