HEMI-ITIS
STREETER on LI
- Local time
- 3:03 AM
- Joined
- Dec 14, 2008
- Messages
- 12,932
- Reaction score
- 17,759
- Location
- Long Island,New York
I have been slowly inching forward breaking the 9 second wall with small carbs till I burnt a piston because the carbs were to small.I had saved up for a pair of dominators 10 times before getting bigger carbs.Life gets in the way and you gotta do what ya gotta do.A few burnt pistons,,,a few lifter failures and a swallowed valve make for an expensive learning curve.Not to mention braking in the trans,twisting an axel perch and loosing a freeze plug and tapping the wall...
One time I was out of the game for 2 years due to being in engine shop prison and cash flow issues
So back in the game I whittled my way through the high 9's before I tried more than 4 lbs of boost on pump gas.That got me into the mid 9's.Then I installed a racepak because the plugs didn't seem to read right.So I learned that being fat is not nessessarily the best tune
The data was showing a lean spike at the hit that I am still working on with the carb builder,Pat at pro systems designed these SV1 carbs that I chose over dominators from all I read and really like the a look of them.https://prosystemsracing.com/svseries/
Also the AF graf was funky with the waves up and down between 14 & high 11's.That kept me crazy till I tried to raise the boost to 9 or 10#.The slip tube on number 7 cylinder that goes over the chassis rail separated and beat itself up.
So when I had to reseal the intake,,,,the inside of it was black,,it was reversion at it's worst.Running through a 4 inch collector to 4 inch stainless pipe back to 3.5 Hooker aerochambers back to 4 inch with tailpipes to the rear bumpers it was still choking the HEMI!!! Now have 4 inch dumpers before the "X" pipe. I should be able to slip into the 8's with free breathing exhaust
Best pass to date choking through the tailpipes.
One time I was out of the game for 2 years due to being in engine shop prison and cash flow issues
So back in the game I whittled my way through the high 9's before I tried more than 4 lbs of boost on pump gas.That got me into the mid 9's.Then I installed a racepak because the plugs didn't seem to read right.So I learned that being fat is not nessessarily the best tune
The data was showing a lean spike at the hit that I am still working on with the carb builder,Pat at pro systems designed these SV1 carbs that I chose over dominators from all I read and really like the a look of them.https://prosystemsracing.com/svseries/
Also the AF graf was funky with the waves up and down between 14 & high 11's.That kept me crazy till I tried to raise the boost to 9 or 10#.The slip tube on number 7 cylinder that goes over the chassis rail separated and beat itself up.
So when I had to reseal the intake,,,,the inside of it was black,,it was reversion at it's worst.Running through a 4 inch collector to 4 inch stainless pipe back to 3.5 Hooker aerochambers back to 4 inch with tailpipes to the rear bumpers it was still choking the HEMI!!! Now have 4 inch dumpers before the "X" pipe. I should be able to slip into the 8's with free breathing exhaust
Best pass to date choking through the tailpipes.