It should fit from what I remember. I'd definately clay though.

I've had a G5-X2 for 2 years now... I'm currently looking to move to a smaller cam w/ a broader powerband and some AFR205 heads.

I have a Fidanza aluminum flywheel which makes drivability tuning more challenging but Ed Hutchings @ VA Speed did a fantastic job where another formerly popular tuner (name rhymes with Fred Reech) really botched my original tune. A proper tune on a big cam'd car should take a day or two. I left mine Ed for 2 days so he could check all different driving conditions hot/cold etc.

My gripe is how the car behaves in stop/go traffic... this is not something that can be tuned out of the car... it's inherent to the amount of overlap. The car likes to buck in the parking lot and slow traffic if I don't feather the clutch. To properly drive it you have to constantly slip the clutch wich gets very old. It's nice to be able to let the clutch out and be able to creep forward in traffic.

If the car was only a weekend toy I'd have no complaints... but it's not. I like to drive the car to work on nice days and would like to make it docile enough that my GF could drive it. As it stands right now you have to be an expert stick driver to drive the car.

My other gripe is powerband. The car screams from 3500-7000 rpms and made 436 rwhp on stock heads... but that's really no fun around town. You have to wind the car out to feel a rush. I'd rather have something that makes power from 2500-6500 with a broader torque curve.

I was very happy with my cam pick when doing HPDEs in my car, but now that its' a street car and LSX tuning has come even farther I've learned that drivability and a broad powerband is more important to my driving style than peak numbers.



Brian

 

Drove ours for 3.5 years. no problems except for a few traction issues .
Lg motorsports installed & tuned it. I have loved the setup, never had a problem. Go for it.

Here comes a 440 ci for the c5 pretty soon.

 

Driving a G5X3 on a regular basis no problems here with a good tune
on a M6 with 3.73 gears. Only problem is lack of traction that I tried
to clear up with some wider 295 Nitto NT05's at the rear.
Without a tune I drove the car for a few weeks was a little tempermental
at times and very rough idle, but some people love that.

 

There is zero chance that anybody but LGM (or one of their dealers) can get a baseline tune + tweaking for your car in 30 minutes. Every car must be datalogged.

 

Had a G5x3 for about 21k good miles and 1 not so good mile due to a lifter breaking... A couple cam lobes were worn bad and many of them pitted. Yep, it's hollow...

 

That tuner obviously doesnt know what he is doing.

 

will m6 guys has problems with this cam with stock 3.42s?

 

Not a problem, typically I will run the AFR's at a 59cc chamber as long as you have access to 93 octane fuel. No need to fly cut, but most typically do in case you want to go bigger on the cam later.

 

Brian,

I think you'll find that if you are thinking of doing the heads, do those first. The increase in static compression will smooth that (and the X3) out quite a bit more than what you think it will.

 

it is necesary to fly cut the pistons with the g5x3 ???(stock heads)

 

Nope

 

Way too many claiming to be tuners & stealing peoples hard earned dollars. Tuning is an art and some are far better than others. I'll guarantee many claimed tuners NEVER even attend "training 101" much less continuing education.