LG Motorsports

Hi Guys,

Here are what we got from a stock LS 7 head for flow numbers.

These heads are already C N C ported from GM. they are a very good head to start with as they come.

Lift Intake Exhaust

.300 246 cfm 174 cfm

.400 302 cfm 200 cfm

.500 343 cfm 211 cfm

.550 358 cfm 216 cfm

.600 360 cfm 220 cfm

.650 379 cfm 224 cfm


We expect to see over 600 Flywheel hp with just a LG Cam, LG Pro Long Tube Headers, filter system and a Tune. I would say about 625-640 flywheel hp very easily with NO head work.

That would be from 530rwhp to 545rwhp.

This car and engine will make "tuners" out of shade tree mechanics.

Thanks
Lou gigliotti LGM

1955 BelAir

Very interesting!

What is the runner and chamber size ??

JDogg

I'm glad that the guys with the big computers spent some time figuring out how to make these things flow well with the right swirl for emissions.

LG Motorsports

Port volume is rumored to be in the 250cc range

LG

LTC Z06

Added to FAQ head pics post.

tx tuna

not sure what "C & C" porting is........

however, if you are referring to CNC - that stands for computer numericly controlled.

Webfoot

After my car arrives and I get it broken in, I'd like to do a cam/header/intake/tune package (assuming I can find someone here in pineapple land to put it together). But I'm curious how far you can go before the GM warranty is voided. Is the cam a step too far?

cbgpe

Low lift flow numbers are very informative
Do you have the data @ .025 .050 0.1 & 0.2 inches of lift?
It looks like some real porting gains are to be made on the exhaust side....the intake is just fine as is I like to see 70-75% of exhaust to intake flow
If you do please post
THANKS

LG Motorsports

You are prbably not sure what "Tuning" is either.

LG

LG Motorsports

Yes,
A cam is a step too far for a warranty. My opinion is that the first step is for the Headers and tune.

I am doing the cam just because I spent the $$ on this car and I want to bring the power up to a level that is just a little bit more thrilling. How often do we get to put a license plate on a car with over 600 hp that drives like this one.

thanks.

LG

LG Motorsports

The exhaust port is also ported by GM and there is only a limited amount of flow increase that will be achieved here.

Also keep in mind that this head came from the Le Mans effort where they run 2 very small ristrictors (32.5mm) per their rules. So they developed the intake port to make up for the intake restriction. They knew that they were not going to get the intake charge in, so they didn't need to get it out.

It is a 2.2" intake valve and a 1.6" exhaust. So the 2.2" intake and big port was a crutch for the restrictor plates.

I am sure that Tuna will correct my spelling if it needs any.

Thanks
Lou G

tx tuna

no offense LG, but i just find it comical that you give a technical disertation on ls7 head flow numbers all while seeminly not knowing what CNC means. next time get your cylinder head vendor to proof read your technical posts for you and i wont have to. again, not being mean here or trying to hurt anyone's feelings.

LG Motorsports

CNC
Counter-Narcotics Center (CIA); Crime and Narcotics Center
JP 1-02


http://www.dtic.mil/doctrine/jel/dod...m/c/00977.html

I knew there was a reason for your existence

LG

I see you are up to 9 posts again. You must have lost a couple

rmitchell242

this is an interesting response! so what is C & C porting for us less educated people out here?

Mark Gray

Hey tuna, I don't see that LG did not understand the meaning of C&C. I only see that you corrected him to CNC. What's your point man? Are you enjoying your own pat on the back or just being a ?

LG Motorsports

Sorry,
I made a mistake and wrote C&C instead of CNC which is computer controlled machine work on the cylinder head ports which you probably already know.

thanks
LG

rmitchell242

i figured that is what you meant but by your response about "tuning" i thought there may have been something i was missing? I guess not keep the z info coming thanks

Mark Gray

LG, I guess tunaman is perfect, ain't he. I've been following your posts and I really like your work. Thanks!

RoliO

Lou's my hero!

dgcarver

Go Lou! I too am one of your fans. I love your headers. Sorry you weren't there when I had them installed so I didn't get to meet you. You were busy that day picking up your new Z06!