i am running what i believe may be the stock 145k mile fuel pump.
ok first off. i had a good time slip i ran a while back with just my stock engine.
STOCK ENGINE (first good run after t5 swap)
2.0 60'
9.1 1/8th mile & 87 mph
14.1 1/4 mile & 99 mph
NEW ENGINE (last nights best)
1.9 60'
9.0 1/8th at 84mph
14.2 1/4 at 95 mph
here are the important parts.
with the new engine i seemed to run a faster 1/8th mile, but then lost power the last half. like it didnt have fuel, since after the 1/8th the rpms are way up where it needs more fuel.
i think the new engine should be running a faster 1/8th and 1/4 all around. according to the slips the new engine is SLOWER than the stocker.
could the stock fuel pump be starving the engine???
another thing...
in the old engine on the 14.1 run, i managed a 2.0 60ft. i launched at a measly 3k and busted the 2.0
last night with the new engine, i had to launched at the rev limiter to get just a 1.9. doesnt seem right. took all the rev the engine had to get a 1.9 when with drag radials i should capable of 1.8s at least with stock suspension...
another thing... i got my adjustable fuel pressure regulator in today. i tinker with it for a bit. people say to set it at around 39 at idle (unplugged and capped vac line) i did this, and it didnt run any different.
i cranked it up some, to around 43 psi, the car seemed to run a little better and eliminted a bucking problem i had at cruising speeds..... this pressure should have been too much for a good setup. but seenmed to help my engine run better.
am i correct in saying my stock fuel pump is choking my motor all around... and be killing it more the last 1/8th of the track???
only really thing i can gather. the engine is running mechanically fine.
i saw a holley 155lph pump for 80$, is this adequate for my combo???
ok first off. i had a good time slip i ran a while back with just my stock engine.
STOCK ENGINE (first good run after t5 swap)
2.0 60'
9.1 1/8th mile & 87 mph
14.1 1/4 mile & 99 mph
NEW ENGINE (last nights best)
1.9 60'
9.0 1/8th at 84mph
14.2 1/4 at 95 mph
here are the important parts.
with the new engine i seemed to run a faster 1/8th mile, but then lost power the last half. like it didnt have fuel, since after the 1/8th the rpms are way up where it needs more fuel.
i think the new engine should be running a faster 1/8th and 1/4 all around. according to the slips the new engine is SLOWER than the stocker.
could the stock fuel pump be starving the engine???
another thing...
in the old engine on the 14.1 run, i managed a 2.0 60ft. i launched at a measly 3k and busted the 2.0
last night with the new engine, i had to launched at the rev limiter to get just a 1.9. doesnt seem right. took all the rev the engine had to get a 1.9 when with drag radials i should capable of 1.8s at least with stock suspension...
another thing... i got my adjustable fuel pressure regulator in today. i tinker with it for a bit. people say to set it at around 39 at idle (unplugged and capped vac line) i did this, and it didnt run any different.
i cranked it up some, to around 43 psi, the car seemed to run a little better and eliminted a bucking problem i had at cruising speeds..... this pressure should have been too much for a good setup. but seenmed to help my engine run better.
am i correct in saying my stock fuel pump is choking my motor all around... and be killing it more the last 1/8th of the track???
only really thing i can gather. the engine is running mechanically fine.
i saw a holley 155lph pump for 80$, is this adequate for my combo???