bigd98ss

I have a 98 camaro ss and around here there are alot of those cobra mustangs. I have a few mods done to the car now but only enough to run a 12.88@ 113.27, I am looking for some engine mods that I could do to make my LS-1 walk all over those cobras, any ideas?

thanks.

BLK UUS-6

iTrader: (1)

All the bolt ons, maybe some good drag radials, cam. Should be able to run high 12's with bolt ons, but probably wont trap 113.

SouthFL.02.SS

Consult any of our sponsors like Texas Speed, Thunder, AFR, TEA, MTI etc. etc. etc.
You pretty much can't go wrong with anything they sell you as a matched package.

Max effort H/C packages on stock cubes are good for high 10 sec./low 11 sec. ET, 125mph trap speeds in full weight cars on stock sized tires.

98Z28CobraKiller

iTrader: (17)

You must live in Florida. I swear that they are everywhere down here. You gotta get into the Mid to high 11's to really walk a Cobra and that is if they haven't changed out their supercharger. You might want to try a head & Cam package and a little juice to give you that extra UMF. You pretty much need a power adder or more cubes to get it done.

mattkimsey

Cam & bolt ons should take care of most....a 100 shot should take care of the rest, aside from Kenne Bell Cobras. If they have a KB, you'll need H/C and spray to hang.

bigd98ss

Well I do have many bolt ons like: 4.10's, K&N FIPK, ported throttle body,throttle body spacer, spec stage 2 W/billet steel flywheel, hypertech programmer, long tubes, off-road y-pipe, Flowmaster cat-back. but I am looking to go in the motor and i was wondering if yall have seen a good heads and cam package for a decent price. any ideas?

DEEZ98Z

iTrader: (5)

PM sent

bigd98ss

I live in Charlottesville VA, and was wondering if anyone knew of a good shop around here that could help me with finding the right combonation?

SouthFL.02.SS

^ Many of us have the parts shipped to us and install them ourselves or have a reputable local shop do the work.

Check out www.ls1howto.com for more technical details as to how the install process works.

Determining what heads you want and what cam you want takes lots of reading/learning. A call to any of the sponsors mentioned will take the guess work out of it as long as you tell them what your wants are and expectations.

Also, read JRP's sticky at the top of the internals forum for an intro.

SAM98WS6

www.rapidmotorsports.com
get rid of the slowmaster exhaust....

bichin95redta

"Determining what heads you want and what cam you want takes lots of reading/learning."

I could not agree more. I almost chose all the upper half parts myself, until, just by chance, I happened to join a local chapter of an F-Body car club. One of the members owns a speed shop and builds engines. When I showed him my list, he said I was headed for nothing but trouble. None of the components were a good match for each other, the cam was waaaay too wild, and I had stuff on the list I simply didn't need.

1st, he talked me out of full roller rocker arms. He said he'd take my money and order 'em for me if I insisted, but the stockers are pretty damn good; certainly good enough for my goal (as close to 450 RWHP N/A as I can get). Next, he toned down the cam...he's ordering a custom ground Comp billet cam, 224/230, .589 lift. He also highly recommended a FAST intake...90mm/90mm throttle body, and a Z06 MAF. We also went with Comp Hi-Tech chromemoly pushrods. The heads are AFR Mongoose 205cc, milled .011, which will yield a 62cc combustion chamber at around 11:1 compression ratio. One of the car club guys is a wizard with HPTuners, so we'll be re-flashing the PCM with that software on the dyno.

Non-speed adding parts are a Melling HD ported oil pump, and an LS2 timing set.

Combined with the bolt-ons I already have (Kooks headers, Magnaflow cat-back, and LS1 Motorsports lid), I think I'll at least approach the 450 RWHP mark....the car already dynoed 350 RWHP & 388 RWTQ.

If I had gone ahead and ordered the parts I had chosen, my car probably would have not realized its full potential, plus I would have wasted about $400.00 in parts I didn't need.

SouthFL.02.SS is spot-on....VERY GOOD advice....get with a speed shop or an engine builder before you make a decision.

BlackHawk T/A

iTrader: (3)

I thought you needed 59cc to make 11:1?

Wouldn't 62cc be about 10.7ish?

bichin95redta

This is way over my head, and I didn't understand it when the speed shop owner showed me the "formula" for figuring C/R. The figure he got was an approximation, as head gaskets, piston travel, and something he termed "quench area" all figure into the final C/R number, but he said we'd end up with somewhere around a 62cc combustion chamber, and he was confident of at least an 11:1 CR. He explained that that was the idea behind milling the heads .011. I was a little nervous about running an 11:1 C/R on pump gas, but he said that with 93 octane, plus the dyno tune/PCM re-flash, there should be no problems at all.

I hope we get 11:1....10:7ish isn't that much better than stock C/R!!!

DEEZ98Z

iTrader: (5)

Check out http://www.fbodycentral.com/forum/. There is some good shops in the area (with in 50 miles or so) and if you shoot me a PM then I can tell you who I recommend.

Wes