LG Motorsports

By a TON! I could only wish that we could run this engine in the World Challenge series.


Thanks guys,

Louis and I have been working on cams for this engine since we got the car. We still have some tuning to do but right now it idles at 1050 rpms easily and even at 7000rpms it has not really dropped off.

So we will try a couple more cams to move the power curve down a little.

I guess the main point about the headers is the fact that our 1 3/4" LG headers will carry over 625 rwhp (over 700 flywheel hp) on a 427 engine. So I don't think any smaller cu in LSx engine combo needs to worry about the headers being a restriction. Also with any header size change there is a compromise involved. A trade off of high rpm gains in exchange for a loss in lower rpm power. Also keep in mind that we are dealing with an exhaust port that still has a 1.6" valve and not really good flow. We worked on the exhaust port for this combo and tailored the cam to match the flow. A larger primary header would only reduce the exhaust velocity and hurt the low end.

For a drag only car, larger might be a good choice, but for a street driven or road race combo we like what we have. And so will the driver....me.

For the record, No cats, 93 octane gas, stock air intake, filter out. And the car also has 345 tires which are a larger, heavier tire so the rwhp is affected a little with them but the car does have a double disc Excedy clutch to handle the power.

As always, we don't give out cam specs, but I hope you still love us. The car also has some tuning left to do. Not for the idle but to clean up the A/F over the entire range.

Stay tuned.

Thanks
Lou Gigliotti

GTA91

iTrader: (14)

Absolutely badass.... makes me think back to the early LS7 debates where ppl swore a cam/header/bolton LS7 would not go over 600RWHP... I knew it could!

frcefed98

iTrader: (16)

JEEZUS, I'm trying to make that kind of power with a freakin turbo on my car
I'm done, trying to keep up is no longer fun
J

PEDRO

headers for ls2 trailblazerSS now!!!! PLEASE

MaximusPrime

Stupid question but does minor exhaust port work mean you ported the heads or the stock exhaust manifolds?

adams2003

The exhaust port on the heads.

technical

I guess it's ironic the car on the right has more power. Just tell me the race car is considerably lighter.

As always your work is inspiring.

11 Bravo

iTrader: (3)

I made a post asking if anyone was porting LS7 heads. Someone tried to say they couldn't be improved upon NOT.

Ling_650vette

iTrader: (1)

In a Corvetteforum post on this subject, I believe he said they milled .010 off the heads which increased compression roughly .1 point. So instead of 11.0:1 compression, he's now at 11.1:1, which IMO makes this gain that much more great.

Congrats on the #s Lou. I know you've had some doubters about your #s, but you guys are providing proof behind your #s. You havent released cam specs (and we hate you for that ) but at the same time you arent sandbagging or brushing off the questions you're recieving on the setup.

Keep up the great work! When you get tired of this setup, feel free to PM me as I'll gladly accept it for my car

ULTIMATEORANGESS

iTrader: (4)

im looking forward to see what it does with heads.

ls1 joe

iTrader: (37)

Nice to see someone is finally installing a manly cam in the new Z06
Nice curve

gator's 99TA

iTrader: (2)

as usual LG is the biggest and the first to be the best!

Kounsy

LG, would the 1 3/4 work on my 402 its not a big daily driver but it is going to be on the street alot this summer, but everyone told me the 7/8 is better. My car is also be going to run at the track? Let me know and the numbers are amazing

Jason99T/A

iTrader: (21)

Nice job Lou and crew!

Jason

WS-Sick

Awesome numbers, Ive been wating for someone to hit over 600 rwhp with the LS7. Do you plan on any video footage?

LG Motorsports

Thanks guys,

I haven't even taken it off the dyno yet to drive it. But we are trying to work through a low rpm, part throttle quirk right now. I posted these results even though we are still working on this package but over at Z06vette.com we are getting grief for letting them in on the development before it is ready for them to plant their Gucci loafers on the gas and floor it.

We never said it was ready for prime time, but it was a milestone so we posted it up.

At least I know the guys over here like to see the R&D as it happens.

Thanks guys,

LG

LC2nLS6

That's hilarious! Good numbers Lou I like hearing about the latest R&D from your shop on the LSx engines, even though I can't spend money on the cars right now. Note to self- bookmark all future LG threads on LS1Tech and not on Z06vette.

YsoFast

Yep that sounds about right. Those guys go out and plop cash down on a top of the line car and drive them 35mph. Then they want want 600hp+ and a warrenty. Makes seens to me. lol

Damn good work! I cant wait to get that g5x4 beast in my car. So from what I have been reading the 1 3/4 to a 3 inch collector would be the best street setup for my little 383 Ls1 with a 6speed? I mean if its enough for the Ls7 it should be for my build too.

Cyborg

iTrader: (8)

Awesome numbers! What tuning software are you using? What do you charge for that cam and headers, parts only?

bad95killer

620rwhp

Incredible #'s out of that killer machine called LS7

Nice job Lou & LGM crew & i'm sure ya gonna receive alot of orders after ppl seeing that Graph & vid would be damn awesome man

peace