I've got a 98 Camaro Z28 A4. It's got the mods in my sig and the following will be done as well.

LS6 heads, ported and polished
BBK 85mm Intake
BBK throttle body
TCI Streetfighter 3000
TransGo
Complete tranny rebuild

I'm not sure about specs of cams so I don't really know what I'm looking at and how they will perform. I want something that is still good on the street but I'm hoping when everything is said and done to have around 425-450 rwhp if that is still possible with good streetability.

Here are the options...

Comp Cams
Comp Custom Grind Cams
Cam---Int Dur-Exh Dur-Int Lift-Exh Lift-LSA
SI007-228----222----.588----.581----114.5
SI1---222----222----.563----.563----114
SI2---224----224----.581----.581----112
SI3---224----224----.581----.581----114
SI4---224----228----.581----.588----114
SI5---231----237----.589----.595----112
SI6---232----240----.595----.610----112
SI7---238----244----.605----.612----110

 

since it's an auto, it will be harder to put those kind of hp numbers to the ground. not saying the engine won't make it...it just won't be seen at the wheels.

but first off...there are MUCH better choices than the BBK intake and TB. to help make your hp goals, i would step up to the FAST 90/90 intake and TB. you'll see more power than the BBK.

another option would be the TPIS 90mm or Oval LS6 intake. they show good gains over the stock size TB but you can get the intake built and the bigger TB for less than the cost of the FAST intake alone (without the TB).

as for the cams...i would say the S16 will be your best bet. you'll have to get a GOOD tune for it to have decent street manners, but it should be possible.

with the FAST intake and that setup (depending on heads) you should make 425-430hp solid...depending on the tune.

 

Thanks for the info. Do you know somewhere that sells the TPIS or Oval LS6 intakes that you mentioned? I considered the Fast 90/90 but it's a whole lot of money. I spend so much more than I initially inteded to for this project so now I am just trying to wrap up the spending for this year. Doesn't mean it won't happen but just not this year I don't think. I can get the BBK intake and tb for about $600 locally so I thought it might be a good alternative. I'm curious though about these other two you mentioned. Long term I'd really like to get turbo charged. I sold my 92 Mitsu 3000GT VR4 so that I could get this car for my wife but now I'm playing with it to get more power out of it. She likes what's been done so far and she's into the whole power thing which is nice. Helps justify the spending. lol.

 

There is a HUGE difference between the manners and power band of a 222/222 and a 238/244 grind. There are people around here running the huge cams like T-rex, MS4, FM15, G5X4 on daily drivers but I don't care to.

Before any of us can truly help, YOU need to go to LS1tech and look under the internal engine mods section. Click on the stickied thread about cams and READ. Then come back here with a better idea of what YOU want out of a cam. Until then you'll get nothing but opinions on which cam someone else would run and everybody has various tolerences of what they'll put up with.

 

Thanks for the advice. I'll go over there and read that info.

 

sorry i was unclear in my post.

www.tpis.com

they sell both manifolds i mentioned. they cut the stock inlet to the intake manifold off and attach either a 90mm or a special oval "snout" then you can hook up one of their matching TBs

do a search for tpis you should find the thread listing them and a link to some dyno results.

 

Yeah and when you read the fine print you either have to send them an LS6 intake or pay a $500 core charge for either the 90mm or oval. So that comes to $500 core + $350 for the mods = $850 for either intake add $499 for the TB = $1349. You can get the FAST 90/90 for that.

 

That's probably the worst torque converter choice that you could make.

Yank and Precision Industries are the top choices for LS1 4l60e converters.
Then there's Midwest, Fuddle, TCI and others.

And with a big cam/high hp don't even consider anything less than 3500 rpm for the stall speed. 4000 is better yet.

 

not positive, but i would bet if you sent them an ls6 intake, they'd refund or wave the core charge...or at least most of it.

 

What makes the Streetfighter so bad? It was recommended by the shop I use and he's got one in his Camaro with 592 rwhp, A4 3.23 gears. He's got a customized STS Turbo setup. I was talking with Fuddle about one of theirs but bought the TCI instead on the recommendation of my shop.

 

Choose your cam first then call one of the converter manufacturers and get their recommendation.

 

4000 Vigilante, Yank, or Pro-Torque and a Futral Motorsports F13, F14, or F15, based on how much cam you want.

 

But as the car is a 98 he'd still have to buy one so it's added to the cost.

 

The TCI is a generic converter that should stall at 3000 with some combos higher with others and lower with others.
with 592 hp and 3.23 gears the tci 3000 is probably stalling to 5000+.
It won't do that with your combo. I'm not saying that it's a bad converter it's just that other companies converters are specifically aimed at the LS1 world and get the most from your combo.
Go over to LS1TECH.com and check out the top 50 fastest stock internal LS1 list, you'll see nothing but Yanks and Vig's.

 

Okay that makes sense. He did mention that it will vary with how much power gets added. I'll have to look at my options since I already own the converter.