KINGCYCLES

iTrader: (3)

Ok here is my dilema. Building a twin turbo set up going into a gto. Basically stock bottom end 6.2, arp everthing, trick flow 255's, victor jr e.f.i. Intake with turbo elbow, nick Williams 102tb. Boost is going to be around 8lbs. for now, running through a 6-speed manual. Question is I have contacted 4 builders and all have different opinions on cam. The only one to ask me every little detail about my car was cam motion. But they also speced out the smallest cam of all. Here all all the cams that were recommended. I just don't know which one is going to work best. I don't want to cheat myself out of power.#1.. 234/228 .604/.595 116, #2..115+3 lsa/ 220/227 .612/.604, #3..226/230 .615/600 116+6, #4.. 226/235 .605/.605 114+5, sooo needless to say..help lol!!

stevieturbo

you dont need a big cam to make a lot of power.

You dont need a 102mm TB unless shooting for say 2000+

And that stock bottom end....will be a limiting factor before almost any cam choice.

KINGCYCLES

iTrader: (3)

I can downsize the tb, I'm really only shooting for 700rwhp. I still want to drive the car.Full interior, a/c and such. I'm leaning towards the smaller cam but like I said don't want to cheat myself out of power.

hellbents10

iTrader: (10)

How are you going to drive the car is a big part of this too. With that being said I like #2 myself.

KINGCYCLES

iTrader: (3)

Random track day here and there. Mainly on cruises with the local gto/g8 club. I would be lying if I said I wasn't going to hit it from time to time, But not going to be looking to do a "street racing takeover" or anything like that.

IronBlocked

There was a trick flow cam on sale @ summitt that matt used with success, and it has the powerband suitable for a manual

DavidBoren

If the guys at cam motion asked you the most questions, in an effort to make the most educated cam specs possible, I would like to believe that the cam they spec'ed for you is probably the one best suited to your needs. Otherwise, they would have just been like everyone else and not asked for the additional information.

Plus, cam motion has really good lobe profiles and excellent core materials.

KINGCYCLES

iTrader: (3)

That was my thinking, but i'm no engine builder by no means. Just an enthusiast trying to make the best educated guess so i'm not having to pull mu cam out in the near future.

stevieturbo

None of the cams stated will be a limiting factor.

By the same notion of being cheated out of power...why not a better intake, why not better turbos, why not better....etc etc ?

You could all say the same thing.

I would probably go with #1 #2 or #3

TBH, I'd almost say I'd be surprised if you could even tell a difference between them once they're in the car and running anyway.

DavidBoren

I doubt there would be much difference between any of them, as well. Maybe #1, given it's reverse split, and the rest are forward split, but still probably not very noticeable installed and running.

I dislike #4 (for a turbo application), though. Granted, I'm no expert.

KINGCYCLES

iTrader: (3)

Whats a reverse split????? ^^^ That pretty much answers all my questions. So basically one cam isn't far superior than another. I believe i'm going to go with the cam motion cam. Just based on what you guys are saying and on all the info they asked me. Later on I might turn up boost, doubt i'll go bigger intake because I don't want a ginormous cowl hood. Just a nice little street car that I can drive. I'll do a monster turbo build later down the road if i get the "more power" itch.

DavidBoren

The #1 cam has more intake duration than exhaust duration. This intake bias is considered reverse split design. Exhaust bias is forward split, or just normal. If the intake and exhaust durations are equal, it is a single pattern cam.

KINGCYCLES

iTrader: (3)

ahhh got it

stevieturbo

Usually that reverse split is more aimed at the assumption of higher pressure in the exhaust than manifold.
With a decent setup and twins I'd hope that isnt really the case.

But no big deal either way given the low power goals, but it would depend on turbos/turbines etc.

I got my cam from Kip at cam Motion, and certainly no problems there, definitely very nice quality compared to previous cams from Comp ( although I never had any problems with them either, just Cam Motions cams look nicer lol )

RoidedSS

i was going to say, there are plenty of people on the forums running baby cams in comparison to what you are planning to use (regardless of your choice). With the 6.2 add turbo application, you should have no problem hitting the 700rwhp. I like cam motion as well since you are wanting to more or less drive it often and not have to worry drive-ability issues. "overcamming" definitely isn't needed when using boost

KINGCYCLES

iTrader: (3)

Man I really appreciate all the feedback. Could to be able to count on the ls community. Cam motion is the choice. Once the car is up and running I'll have some more feedback.