Thread: Need Tech Inspector & Dave Seversons thoughts

Tweet

Originally Posted by HWORRELL

O.K. guy's need your insights as I have researched and researched and have come up empty. As you know me & the kid went 305 sprint car racing last year and he won the track championship and our motor seemed to dominate,but as you would guess them other guy's are gonna try and step up their programs so I gotta try and step up ours. Theres not much else I can do to the motor and stay within the rules "and I refuse to cheat in the least bit" Buttttttttt I do have the option of going to injection. Right now we have a 650 alky carb on top of a jap knockoff of the nascar air gap manifold also running a velocity stack.we can run injection up to 2 3/16 butterflies. we are running the iron 305 #601 heads and ya can't touch the ports or gasket match. I just need to know if the injection will make any more power or torque ?

I am not Tech. or Dave but I have one question.
Have you had this engine on a dyno and tried different carbs??
The reason I ask is on our IMCA mod. 383 we found 11 hp more by running a Chad Baker carb.
The carb. we had before was a Willis carb.

Eric,dyno time is not an option especially for a $400 to win 305 sprint car. Don't get me wrong dyno time would be great but it's just not in the our budget.

Dave thats what I was thinking,just had to let someone else confirm it.
found a nice 2 1/8 unit on ebay guess I'll bite the bullet and see if I can win it.

It's been awhile since I messed with injection but I'm guessing I need a 0 pump and I'm thinkin 18A nozzles,22lbs on the main,56lbs on the high speed and about a 95 pill to get us in the ballpark????

Originally Posted by HWORRELL

Eric,dyno time is not an option especially for a $400 to win 305 sprint car. Don't get me wrong dyno time would be great but it's just not in the our budget.

Dave thats what I was thinking,just had to let someone else confirm it.
found a nice 2 1/8 unit on ebay guess I'll bite the bullet and see if I can win it.

It's been awhile since I messed with injection but I'm guessing I need a 0 pump and I'm thinkin 18A nozzles,22lbs on the main,56lbs on the high speed and about a 95 pill to get us in the ballpark????

Should be close with the 2 1/8" We used 18's in the 310's if my (feeble) memory serves me correctly... We also ran the dial-a-jet....not recomended for young drivers, they always discover that leaner is meaner....with the expected results!!!!!