This is just a FYI, in case anyone was wondering what a '91 Classic with Hot Shot Header and a Weapon R filter (a real POS by the way) would do on a dyno. It's got 124 K miles. Everything else is stock.


Peak HP 120.2 @ 6660 RPM
Peak Torque 114.9 @ 4800 RPM

That seems a little low. Maybe it's the milage. I will be dynoing in late May to see what I/H/E will do on my 97 with 110K miles. I hope it's more than that.

Yeah, that is very low.... your around 10hp lower than you should be -

try doing a ful tuneup if it hasn't been done.

Do you have large wheels? What gear did you dyno in?

Maybe you should get a compression checker and check ur compression (obviously). If its low, that would explain ur #'s.

I dynoed in 4th gear, it was what the dyno operater wanted. The wheels are stock, as is the exhaust and everything else (except header and filter). It had new plugs, distributor and plug wires replaced with OEM not too long ago.

4th gear??? I thought they were done in 3rd

It's usually 4th gear for turboed cars, 3rd gear for NA.

My car dynoed at 131.8 hp, 118 torque at the wheels with a POP charger and a restrictive 1st generation Stillen header. Something's wrong.

That is low.
I was expecting maybe 125-127.

Whats your timing at ?