NSSANE02

iTrader: (14)

When you tune a car, you have to flash the tune you created to the PCM. On most mail order deals the tune has already been created and tested on another similar combo, so they would then just flash that to your pcm and send it back to you. It's pretty common actually.

I'm assuming you meant 460?

You will gain quite a bit more than 10hp having the LS6's ported. There are a lot of reputable shops out there that have great cnc programs for those heads so you don't really have to worry about that. But if you're serious about getting some AFR's then of course it doesn't matter. However, it will change your cam choice depending on exactly which head you will go with so you need to get that set in stone before you choose your cam.

Also on the rear end thing, when your 10 bolt breaks, don't waste your time rebuilding it. Just find a nice used 12 bolt or 9" and be done with it. You can usually get a decent used one for around 1500-2k.

Steve83ta

Yeah I was I finger fudged....

Steve83ta

Depending on what breaks I might rebuild it. If its the posi. I just replace it. If its the gears, Ill prob upgrade to strange, after that then i will have to think about it.

it won't cost me much at all since ill be doing all the work. I trashed 2 10 bolts 10 years ago, one the posi went the other the Pinion lost its teeth.

I upgraded to Strange gears and an Auburn Unit plus a support cover and never had another problem. That was with about 430 hp in my 84 Trans Am

jastone

So Vortec is the only type supercharger that will fit on your 98 trans am? You must be thinking of positive displacement superchargers like a Maggie or Wipple. You do know that procharger makes an entire kit that will fit on your trans am without hacking anything up right? And it's inner cooled! I was in the boat you are in a few years ago but with just an ls1 not an ls6. I decided to go procharger which will give me my goal now and give me room for more if choose to forge the motor later. Just giving you another option in case you over looked it.

Good luck with your build
Jason

jastone

The big problem with putting high HP in these cars is they are up to 15years old. The parts they were given at times couldn't hold the factory level power. I'm not saying 500hp can't be done with factory driveline, but remember every time you use it you risk breaking something expensive.

Also NSSANE02 is right. I went through two sets of gears in this thing when it was stock, through an auto even! Once you put 500 in it, the rear will be a ticking time bomb. Go after market assembly even it you do most of the work yourself by the time you add it all up you could have a 9" used that you could rebuild.

NSSANE02

iTrader: (14)

I'm just trying to save you some time and money. You can rebuild it if you want but it WILL break again, no matter what gear set or diff you put in it. The 10 bolt is just a weak rear, period. There's no good way to "build it".

MikeWS6

I still have the mighty 10 bolt. Its a hit or miss, ive seen some take 450hp and never break, others break under stock power. Wait til it breaks and throw a 9" rear in there. Only way to go.

R6cowboy

iTrader: (3)

What about the Strange S60 rear end. Those are know to be 8 sec. ET's reliable, smooth & quiet on the street and only 20-25 lbs heavier then the 12" bolt rear. Just curious, how do those compare to the 9"?

NSSANE02

iTrader: (14)

9" are in the 7's too, they're plenty strong. And mine weighs about the same as my 10 bolt.

Steve83ta

Yeah Right now its all about my game plan. I know there is some to take out, but not much, but hey thats what the cnc machine is for, they don't mistakes when they are programed correctly and the bits don't break.

This time next year Ill be putting AFR's on, like I said I didn't want to do a head job twice in a year on this car.

Steve83ta

Yes I was specifically referring to the Maggie since in my opinion they have the nicest set up for under the hood except or the cut you have to make in the cowl which Im not doing... Such a shame becuase I love that kit on the GTO's and the new Camaro's. Its one nice kit, looks like it belongs there stock.

You know I might have missed the Procharger one. Im going to go look it up tonight. I briefly look up the turbo that runs off the rear exhaust, but that is why too much pluming under the car looking to get damaged at the first speed bump.

Thanks for the heads up

Steve

Steve83ta

Ive talked to Brian on the phone and by email and Im pretty much decided on his cam at this point for what I want to do. It sounds like a killer combination for 4 hours or work. Also the price isn't bad either, for the cam, dual springs, steel retainers, and hardened pushrods its around 700, Its a huge bump for the money. Eveything else is done do this car except for porting. So this is the only place to go.

Personally If I had the 13,000 laying around I WANT Z06/ Camaro ZL1 Camaro engine. BAD! Look it up on you tube. What an engine!

ryridesmotox

I was looking around today for more to add to my future parts list... GM iron 7 liter blocks are fairly inexpensive. about $2700 for the block... a 7 liter iron block... the possibilities of such a stout hunk of metal make my ***** move.

http://www.jegs.com/p/Chevrolet-Perf...97512/10002/-1

LilJayV10

iTrader: (39)

Some people need to understand we aren't in the 80's anymore.

Steve83ta

True True, Thanks again for pointing me in Brian's direction.

Im going to go with his stage IV cam/spring package. The only thing that bothers me I can't find anyone to talk to personally that uses it. Ive found a bunch of Cts-V guy's running his stage 3 cam which the numbers really aren't that different at all from the IV, but I would still like to hear how the IV idles and how it drives from someone who has it. Im sure its fine since everyone with the stage 3 seem to love it!

Fedorath

I am original owner ofo5 cts v, with FG2 shocks and a crearive steel front rear mount. Trans is stock rear mount eith a creatve steel insert. I have no wheel hop. As far as the rear end being week, if you aren't into dumping clutch at high rpms there isn't a problem.
personally I would start with a vin specific tune that is then customized. You wouldn't believe the results. Oh, I have 106,000 miles on it
no drivtrsdrivetrain issues other than those incredibly weak mounts.
good luck

G Atsma

You're replying to a 10-year old thread...