Carnage
AKA "The CLOWN"
Joined: Feb 2010
Posts: 6,261
Likes: 13
From: Chicago South Suburbs
I just ordered a set of LSA's today.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
Very much looking forward to your findings as you know I would like a set of these heads!
Last edited by Blitzkrieg; Dec 6, 2012 at 08:27 PM.
Burning Brakes
Joined: May 2011
Posts: 1,216
Likes: 56
From: Houston Texas
I just ordered a set of LSA's today.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
The CNC work eliminates the swirl shoulder. Any chance for on engine testing with the shoulder at some point?
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
I just ordered a set of LSA's today.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
That is awesome Arun. Is there any chance we could get you to bolt them on in stock untouched form as well? For a comparison? I know its a bit of extra work, but it would be nice to see the increases to be had from the porting.
Former Vendor
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
And for a fair comparison for the 245's there going up against-it's only fair that they will be CNC ported.
I am 99% sure Blitz is going to bolt them up as cast with one of my supplied cams and springs.
I've come up with something for 4" stroke motors and something stoke stroke motors.
The 4" stroke motors will have less than 8 degrees of overlap and the stock stroke will be less than 5 degrees, I'm putting a big emphasis on power under the curve and streetability.
I think 900 rwhp out of a 346/370/402 will be no problem with a YSi.
FWIW-on average I'm seeing around 675 rwhp and 580 rwtq with a 226 intake lobe, S trim and around 8-9 psi on a 08 and up LS3.
Thread Starter
Le Mans Master
Joined: Feb 2009
Posts: 5,169
Likes: 199
From: Your Sister's Bedroom
The engine we just had drop a valve was a 364ci with a YSI and it made 915whp with 72cc patriots, 598/602 230-236 114lsa cam and Brets tuning...
Id say that goal is MORE then attainable.
Very interested in the combo you come up with though, gonna need somthing for the new 408.
Id say that goal is MORE then attainable.
Very interested in the combo you come up with though, gonna need somthing for the new 408.
Le Mans Master
Joined: Sep 2003
Posts: 6,272
Likes: 225
From: Farmington CT
Cruise-In VII Veteran
I just ordered a set of LSA's today.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
I will CC the chambers and flow the heads in "as cast" form and post up the results.
I will then send the heads to Charlie@RPM for him to run his CNC port program through the heads and post those results.
I'll be prepping them with BTracing dual springs and using stock LS3 rockers with comp trunions.
Lastly, I'll be figuring out a blower cam to take advantage of the huge intake runners that has great street manners, from my understanding these heads are real sensitive to cams.
I will then bolt these up to my car and see what they can do.
End goal is offer a complete head and cam package to take the guess work out a big power bower combo.
keep us updated on the progress
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