WOW! 540rwhp!:excited:

question: why such a huge increase in the HP, but NOT in the TQ?

I thought HP was derived from TQ - or inter-related - you know - one's a product of the other thing...
So, why didn't the TQ increase more?

 

Hi,
This is only our first itteration of our G7X-2 cam, thus the experimental designation.

in fact the torque did increase about 70 ft pounds, just not in the area that we want it.

You will also notice that the torque at 3000 rpms is 416 ft pounds Rear wheel. That is almost as much as the peak torque of the stock Z06.

Horsepower=Torque x RPM divided by 5250.

It is all in our cam right now. When we adjust some details on the cam, we will pull the torque up at the lower rpms for sure.

ANd there is no tuning, so the A/F was lean at peak torque, so that pulls the numbers down also.

remember this is only our 2nd cam. Stay tuned!

Thanks

Lou G

PS, Keep in mind it has over 70 rwtq more than stock, and it has nearly 100 hp more than the stock Z06. I would not say that is a problem yet.

 

That is very impressive!

How about a video of it idling and taking off thru the gears!

:devil:

 

wow 540 with just a simple cam job and headers...now for a free flowing exhaust and some head work

 

Lou, Did you have to change valve springs? How good are the factory springs?

 

Uhhh, 540 RWHP on mild cam, headers and filter out with no tuning is ....REDONKULOUS. I love NA horsepower but that thing is going to scream. Lou, I asked you before and you denied it, but do you think now with a more aggresive cam and tuning that 620 RWHP is possible?

Gus

 

Those are great numbers. I need to get me a Z06.

 

This is still a relatively small cam. We did change the springs to facilitate larger cams for our testing.

The first cam we tried did use stock springs and it made 505rwhp.

We didn't want to find the limit of the springs in a bad way, so we put good springs in, with lots of room to grow.

As for 600rwhp? well, when the first LS6 came out in 2001 and cars were hitting 350 rwhp stock, the plateau was set at 500 rwhp N/A. To this date, only a handful of N/A stock cu in LS 6 engines have hit the magic 500rwhp.

I will expect that the same will happen here. There will be a few cars that hit 600 rwhp or better N/A with a stock 7 liter build up.

Thanks

Lou G

 

i hope that in the future, mine is one of them.


:thumbsup:

 

Video G7X-2 exp cam, LG Headers, Exhaust bypass switch demo


www.lgmracing.com/lgm-c6zo6-ebs.wmv

LG

 

that sounds amazing.......love the difference, too. Nice Demo!

 

Nice Video, Lou. ... Thanks!

It almost sounds "tinny" when it's shut.

 

Nice Video, Lou. ... Thanks!

It almost sounds "tinny" when it's shut.

just means it won't attract too much po-po attention...and that idle sounds pretty mean...I can only imagine what it will sound like on the quarter mile :devil:

 

540 Thats crazy I need one. Nice video

 

wow 540 with just a simple cam job and headers...now for a free flowing exhaust and some head work

Head work will not be necessary, the stock heads deliver massive flow.

 

wow 540 with just a simple cam job and headers...now for a free flowing exhaust and some head work

Is there anything to be gained by changing the stock Z06 exhaust other than headers and cats? Isn't it 3" all the way back to fully bypassable mufflers??

 

Is there anything to be gained by changing the stock Z06 exhaust other than headers and cats? Isn't it 3" all the way back to fully bypassable mufflers??

nothing to gain except sound.

 

Head work will not be necessary, the stock heads deliver massive flow.

That's true up to a point. The exaust needs a lot more flow to gain power. Refer to this thread here

 

I doubt you've checked at this point, but do you expect this to be a street cam or offroad? Thanks Lou! Those are some awesome numbers and amazing sound! It'll be a few months before I have my Z, but we'll be talking, I'm sure.

 

I doubt you've checked at this point, but do you expect this to be a street cam or offroad? Thanks Lou! Those are some awesome numbers and amazing sound! It'll be a few months before I have my Z, but we'll be talking, I'm sure.

This is still a very small cam compared to our regular 7 liter cams from the past. The heads are the amazing part.

I plan on taking it to the emission test place nearby to see what the car does on the sniffer.

These numbers are with cats installed, wich is also amazing.

Great car.

LG

 

Thanks for all the info Lou!

What are your thoughts on dropping the LS7 heads and intake on top of a LS2 bottom end in a 06 coupe with your cam and headers.

Do you think the 6.0 bore is large enough for the LS7 heads?

Thanks for any info.

 

That's true up to a point. The exaust needs a lot more flow to gain power. Refer to this thread here

RIGHT- Lou is saying, he expects 625 to 640bhp at the flywheel, W/OUT HEAD WORK, which is all I am saying in my post if that is, one does not want more than around 640bhp at the flywheel.

So, I am guessing your point is, that you want more HP than the possible 625 to 640bhp at the flywheel, Lou spoke of getting with the stock heads.

My point in saying, "Head work will not be necessary, the stock heads deliver massive flow." that you may have missed was only that something in the 600+ BHP range one can get from factory heads is a lot of enexpensive HorsePower waiting for any driver to tap into.

 

Thanks for all the info Lou!

What are your thoughts on dropping the LS7 heads and intake on top of a LS2 bottom end in a 06 coupe with your cam and headers.

Do you think the 6.0 bore is large enough for the LS7 heads?

Thanks for any info.

As far as i know the minimum bore you can put a LS7 head on is 4.060, so i don't think you would be able too