Nice work Kurt 
AFR's on boost
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TECH Junkie
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From: Clayton, North Carolina
AFR's on boost Ran some tests on a 5.7 engine built for drag racing. We are finished with the AFR portion of the test and should be testing the All Pro next on the same shortblock.
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
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TECH Junkie
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From: Clayton, North Carolina
Originally Posted by MIGHTYMOUSE
sold! i can expect these numbers with pump gas and meth right?
Sled
Presicion Turbo products supplied the boost makers. Turbonetics racegate's.
Reckless,
It's my personal engine, originally built when the cube rule was under 360ci. Thats why the small engine(352ci).
RyanJ,
Harlan's new engine is one of those BIGGER one's......lol. We are not building Harlan's new Hawk engine, but i'm hoping to race against it!!
Kurt
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Originally Posted by 427
Harlan's new engine is one of those BIGGER one's......lol. We are not building Harlan's new Hawk engine, but i'm hoping to race against it!!
Kurt
Kurt
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From: Grove City Ohio/Port Washington L.I sometimes
Originally Posted by 427
Ran some tests on a 5.7 engine built for drag racing. We are finished with the AFR portion of the test and should be testing the All Pro next on the same shortblock.
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
Last edited by 10.5 Dave; Apr 17, 2005 at 05:26 PM.
kurt,was the block o'ringed.What was causing the surging?I have two 44mm tial gates on my pt101mm.Do you think I'll have the same problems at that boost level.Was the intake ported to?
Originally Posted by 427
Ran some tests on a 5.7 engine built for drag racing. We are finished with the AFR portion of the test and should be testing the All Pro next on the same shortblock.
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
Heads: AFR castings ported by ET performance for forced induction. 2.055 int 1.6 ex.
Intake: GM performance parts alum carb intake.
Camshaft, valvetrain: Cam Motion solid roller, jesel lifters. jesel 1/2-7/16 pushrods and Jesel custom rockers- 1.7 ratio.
Had planned on testing at 35psi, but the gates are causing surging that limited us to 30psi.
Peak Tq was 1208 at the flywheel @6000rpm (from my memory on rpm)
Peak HP was 1697 at the flywheel @7500rpm
Generally the head seemed very good with the head gaskets showing no signs of problems. I did weld all the water holes shut in the heads and then drilled them to match the SCE gasket to gain some surface area.
Kurt
Incredible Kurt!
I have talked to harlan and a few other people... Going to be some POWER HOUSES this year.
Dave, also cant wait to see your new setup soon. Should be VERY interesting
I have talked to harlan and a few other people... Going to be some POWER HOUSES this year.
Dave, also cant wait to see your new setup soon. Should be VERY interesting
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TECH Junkie
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From: Clayton, North Carolina
Originally Posted by sr71bbjr
kurt,was the block o'ringed.What was causing the surging?I have two 44mm tial gates on my pt101mm.Do you think I'll have the same problems at that boost level.Was the intake ported to?
Intake was not ported.
Big Mike, tested the All Pro's na and was very impressed. Looking forward to some boost testing.
Kurt
Originally Posted by 427
The head is o'ringed with a reciever cut in the block. I think the gates we used are to big, or the springs too soft in them causing boost surge. Not sure if you will have trouble with your set-up.
Intake was not ported.
Big Mike, tested the All Pro's na and was very impressed. Looking forward to some boost testing.
Kurt
Intake was not ported.
Big Mike, tested the All Pro's na and was very impressed. Looking forward to some boost testing.
Kurt
what were the results of the N/A test? Were they just the 230 CC castings unported? or did you get the All Pro CNC work and valve job, or have a good porter have at it with them?
1697hp wow that has to be the most hp out of an LSx motor yet 
. Now that motor is going in a car and coming to Atlanta this Fri + Sat right, cause I know your shop builds stuff to race not just talk about 
.
. Now that motor is going in a car and coming to Atlanta this Fri + Sat right, cause I know your shop builds stuff to race not just talk about . The intake out of the box realy isn't that impressive.Trevor Johnson ported mine as well as Sean Freese's(KECHME).The worst runner in the intake still flowed over 380cfm
after he was done with it.I would like to see what the port alone would do over the untuched intake.
after he was done with it.I would like to see what the port alone would do over the untuched intake.