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

sold! i can expect these numbers with pump gas and meth right?

That's incredible!

wow...if you are not getting W2W to build your FI setup/motor...you're dumb :)

Nice numbers Kurt!

WoW!! What kind of turbo is it?

gee, wonder who's setup that is ;) Nice work Kurt :thumb:

I'd bet its Harlan's new Hawk setup.

Yep. Just need 50% meth 50% pump fuel!!


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

LOL!! your going to be waiting a long time! Were having too much fun with his single turbo truck now, car is way on the back burner! I think we can arrange for you to run taht though? Got anything you want to run his truck with? keep in mind, it's only a little GT37 turbo :D :D

Stenod

thats great, awsome numbers

Good job Kurt.I wonder how much my " big "engine will make.:devil:

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?

Kurt, just wait untill you test the All Pro's!!!!!!!!

Mike, is that to say that they don't call them "All Pro" for nothing?

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 :nod:

I think I need set of those heads on my car :)

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

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 :hail:. 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 :drive: .

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.