5speedstang

So saturday night i talked to the guy that bought my old mach. kind of interesting story. first he said it threw the sparkplugs on the driver side head. why would this happen. not one or two but all four. then on the mach i had full bolt ons 4.10 gears and he threw it on the dyno and it only put down 302 hp and 320 rwtq. this is with longtubes, underdrive pullys, tuner, off road h, RAI, NGK tr-6 plugs, 4.10 gears, intake spacer, ported and polished tb. and i think that is it. i was surpised bc before the headers and pullys i ran a 12.3 on slicks launching at 5500. kinda weird dont you think?

USMCrebel

well, if it threw the plugs then there is an underlying problem causing to dyno less, but dyno's are BS anyhow.

rygi23

probably a mustang dyno, not a dynojet.

USMCrebel

im more worried about the plugs getting thrown. did it strip the threads?

Furinox

dyno's differ. Theres 2 in my area and one reads about 10-15 lower than the other

MAD SVT

then id go to the higher one

USMCrebel

all the dyno's around me all read low due to them all being loaded.

5speedstang

im almost positive he uses a dynojet. and yeah i believe i did strip the threads on the head. he already got it fixed and is driving it.

USMCrebel

has he run it at the track yet?

5speedstang

no its been cold here. he granny shifts around town in it tho. he dont know how to drive it