Right now all I have is LGM headers with Random cats and a Halltech Stinger intake. I am looking for decent driveability and 400+HP to the wheels with some lope. I don't race my car. I have been hearing great HP gains with other members running the G5X3 114. I just want to know what esle is out there that has just as good HP gains as the G5X3 cam. I also want to know if I should invest in a dual timing chain. I will also be doing an under drive pulley. Car right now is putting 370 HP to the wheels after being tuned.
Thanks

 

TTT
Anyone out there?

 

I guess everyone "out there" is running the G5X3...I know I am. I got a +35rwhp gain from this addition (on 114 lsa) w/ an underdrive pulley. If you decide to go with this cam, get the entire "kit" from LG...it includes the pulley, 921 dual springs, double roller timing chain, hardened rods, and titanium retainers.

 

Well it really depends on what you want... The GX5-3 is a nice cam and I was going to get it or the F13 from FMS. But after doing some research on different cams and already haveing a 232/230 cam in my WS6 I decided to go with a smaller Stealth II from MTI. With Headers I should hit 400rwhp. Thats the cool thing about Z06's the heads are money from the factory

I made this choice because I love the car stock and just wanted to get more power. The bigger cams are going to give you 15-30 more HP but you will get a lopey sound and peaky power...

The dual chain is a big debate my car has 10k on it so I may change it with a single JWS chain or I may just leave the stock chain in. GM would not have put the chain in there if it coulding handle 6700rpms. I rarely hear of Timing chains breaking in these cars its always vavle springs...

 

Do you mind if I ask what you paid for the kit?

 

I got a 40rwhp with the same setup, except I kept the stock pushrods.

 

Tom,

I don't know exactly what the kit cost, since I had this done as a "turn-key" install (w/ tuning) at ECS, here in NJ.

I would suggest you contact LG Motorsports in Dallas (a supporting vendor here at this site....look to the left) and they will be able to give you the price.

 

What are the cam specs on the GX5-3 and on the MTI stealth cam? I too am looking for close to 400RWHP. I am at 361 now with 3.73's, so I guess I's settle for 390ish rwhp considering the gears. I found 2 cams that I'm considering- 224/224 581/581 and 220/220 581/581, both on 114. I'm open to all suggestions. I plan on using a new stock Z06 chain. SCOTT

 

MTI Stealth II is 224/220 581/581 116. If you are in that range of cam and you want a smooth idle I don't think there is a better cam, a few Z06's have done 406-410rwhp with cam only and bolt ons. Heads will get you another 20 with considerable torque.

The GX5-3 is SOMETHING like 236/242 590/609 on a 114. If you really want the specs I will find them for you on LS1tech.com. Its a nice cam too but you will know a cam is in there. I would be disappointed with anything less then 415rwhp on that cam it really shines with heads guys are putting up numbers in the 470 range with the right setups.

The F13 from FMS is another fantastic cam and if I was going big again I'd go with it. Its a 230/232 595/595 (I think) on 110-114. In some cars it has made some incredible numbers with tuning.

So from your discription you don't want a big lopey cam I would seriously go with the stealth II. Out of the two you are considering go with the 224 that is a proven cam and anything under 230 with tuning these car drive like stock. When I had the heads and cam in the WS6 I told the wife it was just the headers making all the noise and she believed me. She knows more than the average woman about cars and would have known if it drove like a big cam car something else was done.....

 

I personally think the G5X3 (on a 114) is the ideal cam for making power, without sacrificing driveability. I was extremely happy with my Z when I added this in the early summer and was "cam only." Since then, I have added the AFR heads, 4.10 gears and the 90mm TB/90 FAST intake and now am over 470rwhp and still maintain superb driveability. If you are thinking of "staging" your mods, don't undercut yourself on the cam now, since you may be sorry later....the G5X3 is not too big.

 

man, I thought I was done modding my car, performance-wise at least. 470rwhp time to get back to work

 

Yeah, ECS....my home away from home.

 

Have you experienced any spring problems? Also did you have to flycut the pistons with this cam. Are you running the 921 springs?

 

No real fear on the springs...I've got 921's...they are what LG recommends for his cams. They will be examined after 20K miles, just for good measure.

Everyone seems to ask about flycutting of the pistons. With my application, it wasn't necessary. But then again, my tuner checks each and every high lift cam he installs for clearance, and if its a necessity, he'll do the pistons. But, he said this is what every installer/DYI'er should be doing (checking clearance).

 

I personally have been speaking with Mike Norris about a 226/230 113LSA XER lobe cam. According to Mike daily drivability is still somewhat stock and it makes great power to boot.

I've just been wondering if I should P&P/revalve my stock LS6 heads or buy an aftermarket set?

Alan