How does it idle? Street driveable?

 

Good question...most guys want an ornery idle, street driveability, good power, but emissions friendly...

 

as long as you are not in CA is will pass emissions with the cam and if you still have catalytic converters on your car (headers w/ high flow cats, or stock exhaust which would not compliment a cam well like headers).

I have talked to Anthony @ LG motorsports about the g6x3 cam myself because i am looking to do heads/cam in the near future. he and others explained to me that the driveability isnt bad...but definitely not as good as stock. you wont be able to be in first gear idling through a parking lot, it will want to surge back and forth due to the cam. but as far as driving i have heard it takes a little getting use to but its nothing that will drive you crazy and drive terrible as long as you have someone very good tune the car. overall...it wont drive bad but it wont be like stock. my background is driving racecars and my previous car was cammed so its normal to me lol.

as far as the idle on that cam...it is somewhat aggressive and pretty mean/lopey sounding...but not too much that its not streetable of course. but it sounds awesome. look up g6x3 corvette on youtube and you will get plenty of videos its a very common cam.

I dont claim to be an expert...im just relaying info ive learned by asking questions so anybody can correct me if im wrong on any of that. Feel free to call LG motorsports and ask them...they have excellent customer service and are always more than happy to answer customer questions and they can help you out a ton. I hope this helps!

 

Matt..

I sent you a PM... I have an 05 (A4) with 3.15 gears.. & a 2800 converter... do you think the g6x3 cam would be "too aggressive" for that stall converter?

I hate to swap converters again (3200) because I've been racing less, but only go to the good paying $$$ races...

Bottom line I want to stay with the 2800 converter, ..I "DON'T" care how it sounds, I'm not out to impress people with a big lopy idle...I just want to be able to run 11.50 index races..

As of now with the stock cam & converter, I'm running very low 12's (best is 11.98) in great air) I really need to run 11.50 that 11.9 run was with the stock converter, with the 2800 I'm hoping to get my 60' down from 1.90 to 1.70 on DR tires..

 

I assume you mean the sniffer when you speak of emissions? If so, no...

JPEE imho the 2800 stall and gears isn't ideal. What size dr do you run? 275/40r17 will help your gearing and 60', what rpm do you plan to shift at? A smaller cam will make better low end power and probably better avg power, which will get you down the track faster...

 

I'm using 18" wheels with 305/35x18" DR (26" diam) Right now the shift points are set to 6300...

I already have Kooks LT headers, CAI, etc...I "think" I'll still be able to hook up with my current set up (tire) but if I did go to more stall, I'm pretty sure I'd have to go to the 17" tire size you suggest..

I'd also prefer to keep the shift points where they are now.... I have stock valve train, and really don't want to spin it much over 6300 rpm..if I don't have to...

Not worried about emissions.. we don't have a sniffer here, they just plug into the OBD port...

 

Jpee that cam is way too big for your converter. WAY too big. You need a 4000 stall converter with it and personally I think you need a manual car for it.

Theofel had a similar sized cam, and a 4000 stall converter (maybe 3900) and his car ls3 ran 10.7 in the heat, but I rode in it and understood why it took it out. It was one bucking bronco, that is for sure. I needed a neck brace going for a short drive back to the timing tower through the pits. It was horrible.

 

Joe "THANK YOU" !!! Thats all I needed to hear.. I'm getting the converter next week, and will leave the cam selection to Cartek... Julio knows exactly my set up (he did it) and I'm sure he will get me on the right track...

 

If you're getting a cam....then I sure wish you'd consider a FAST.

The FAST is going to add .2 and 2 mph guaranteed. You can do it later, it's a 15 minute job, I've hot swapped two of them on the dyno.

And you are in the BEST hands for your setup with Julio, he tunes the some of the fastest cars in the country. I am positive he will get you set up correctly.

Too late for a 3600?

With a 3600 and a FAST...skinnies and seat out and you have a 10 second ride in cool weather.

 

Will for "SURE" be thinking "FAST" Julio already suggested that... I just have to keep an eye in the bank account $$$$$

 

Roger that!

You can run without it for a year, enjoy the newfound power...then next year, when you add the FAST, you will think you added a bigger cam!

I went from consistent 11.5's no FAST for two years to 11.2's with a FAST and even squeaked out a 10.99 when I put on skinnies and took the seat out.

The FAST is a great mod for LS2's. Keep you eye peeled for a used one.

 

I'm not sure if this is what you need, but I saw it in the f/s section earlier.

http://forums.corvetteforum.com/c6-p...t-102-ls2.html

 

i believe he has a ls3... a fast wouldnt really be neccesary im sure, a ported manifold could net some nice gains.

 

Oh, if it's an LS3 then a ported stocker is all you really need.

FWIW, I highly recommend the BER ported intake manifold for a great bang for the buck mod.

 

I have no problems passing PA emissions with the G6X3. The car definitely has an aggressive/loppey idle. Driving it just takes getting use to. I can hop in and make it drive like a stock vette with some clutch and throttle play, but if I let someone else drive the car you can definitely tell as the car bucks and surges.

Idle video

http://www.youtube.com/watch?v=bDvV6kOpDEs

 

very nice, notice you made 500+ whp.... must be a bast, how much whp did the heads and retune net you?

 

I cannot imagine any car with headers, even with high flow cats, will pass any emissions test if a sniffer is involved.

My sniffer I was born with, along with my watering eyes, tell me that.

 

When I had just a cam and headers it made 440whp then I added a ported FAST and milled TFS 225's and the car made 518whp. So the heads and FAST made about 80whp difference.

 

The cam was never meant to pass a sniffer test, it is sold as an off-road cam package for sure. Not saying people have not tuned them to pass...but it was never designed as such.

Streetable is a big word, and a grey one at that. It means something different to everyone.

I can give you and idea of how the cam is going to drive and you can say from there, if it would be right for you.

Idle 950-1050 with a steady shake at idle
Power range 3000-7000 RPM
Some cam surge at low speeds under 1600 RPM, most noticable in manual trans cars. Auto's with bigger stalls should not really see this as an issue.

Auto cars will require at min a 2800 stall, most find a 3400-3600 to work the best for combo use.

With a good tune you can get the cars to drive quite nice, but it will never drive 100% like a stock car of course.

 

^^^ Great info Anthony.

I get asked the question a lot to compare my cam to the G6x3, can you answer it?

For argument's sake, let's say we're talking LS2 here.

If stock is a 1, and the G5x3 I have is a 10...what is the G6x3?

I answer it's probably 18. It's a lot bigger. Not twice as big, but 1.75x as big.

Is that accurate, or would you say something else?