what would it take to run dual turbo? how much money? is there an equivalent way to make power or better with the money it would cost. the car is to be street driven alot, dont want nitrous. im planning on putting a 455 big block in my 83 trans am soon aswell what would it take to run dual turbo on that?

 

oh oh.. me me ..LOL

406 TT. How much is based on your own pocketbook and what quality of parts you want. You can low-buck a turbo setup, it'll look like crap and it may not make as much power as you wanted.
My car regularly makes 120 mile round-trips in the Texas heat..no cooling issues.

 

has anyone seen or own a 400 sbc with twin turbo maybe even stroked aswell?

 

BDR do you have any pictures?

 

I don't own a TT set up, but I've done a couple.

You can spend a lot, upwards of 20K, really quick if you aren't careful. I would guess that an absolute budget build would be in the neighborhood of 4K or so, but I've never done a bare bones set up so I don't have any first hand experience with that.

Power... A lot. North of 1,000 WHP with the right stuff. With a budget build, I think mid 500's would be the upper limit before components start to break pretty regularly.

For a budget set up, this is how I would do it:

I would build a forged 355. Probe and/or Scat internals. Nice stuff, but pretty budget oriented. Some 113 heads, or other aluminum alternative. Small cam, a hot cam or something equally mild with a 113+ lobe separation. I would build the hot side and cold side plumbing myself, but you could pay someone to do that if you don't have the tools and/or ability. There might also be some shorty headers you can flip around and point forward for the Third Gen's, I don't know for sure. I would use T3 .60/.63 turbos. They are on the small side for what you are doing, but they can be found all day on E-bay for just a couple hundred dollars. Most of them come internally gated at about 8-9 PSI, so I would just leave them at that and use a boost controller if I wanted more. You should be able to find a dual inlet, single outlet intercooler on E-bay for pretty cheap. The fuel system would be next, atleast injectors and a pump, maybe lines too you plan to make serious power. A way to tune would be mandatory, so either plan for a stand alone, or come up with a solution using the stock components.

It's an involved project, there are a ton of things that will nickel and dime you to death with a project like this.

 

I don't own a TT set up, but I've done a couple.

You can spend a lot, upwards of 20K, really quick if you aren't careful. I would guess that an absolute budget build would be in the neighborhood of 4K or so, but I've never done a bare bones set up so I don't have any first hand experience with that.

Power... A lot. North of 1,000 WHP with the right stuff. With a budget build, I think mid 500's would be the upper limit before components start to break pretty regularly.

For a budget set up, this is how I would do it:

I would build a forged 355. Probe and/or Scat internals. Nice stuff, but pretty budget oriented. Some 113 heads, or other aluminum alternative. Small cam, a hot cam or something equally mild with a 113+ lobe separation. I would build the hot side and cold side plumbing myself, but you could pay someone to do that if you don't have the tools and/or ability. There might also be some shorty headers you can flip around and point forward for the Third Gen's, I don't know for sure. I would use T3 .60/.63 turbos. They are on the small side for what you are doing, but they can be found all day on E-bay for just a couple hundred dollars. Most of them come internally gated at about 8-9 PSI, so I would just leave them at that and use a boost controller if I wanted more. You should be able to find a dual inlet, single outlet intercooler on E-bay for pretty cheap. The fuel system would be next, atleast injectors and a pump, maybe lines too you plan to make serious power. A way to tune would be mandatory, so either plan for a stand alone, or come up with a solution using the stock components.

It's an involved project, there are a ton of things that will nickel and dime you to death with a project like this.

 

you bet I do.

http://img411.imageshack.us/img411/7...nturbo2oy2.jpg
http://img187.imageshack.us/img187/7...nturbo2ij0.jpg

Right now I'm having the carb converted to E85. There's some small issues I need to take care of when the carb gets back and then I'll re-tune and have it dyno'd.

 

I like the idea but I dont think $4k will build you a decent turbo setup. By decent I mean, presentable to the public and puts out some decent HP (nothin wimpy like 400 or less).

Dont discount blow-thru as a option. As far as a 355, I'd skip that and go straight to a 383 since the cost of the rotating assembly will be the same.

There's a dude/company that sells good parts (Eagle) for one hell of a price (gofaststuff.com) .. I've bought 2 rot. assys from him, 2 sets of heads, etc. Saves me $$ over Summit and other big mail order companies.

If you really wanted to low-buck it.. you could build a 383 short rod motor w/eagle components, save a few hundred on pistons and have a decent motor. 383 sbc, 5.565 eagle rods, eagle 4340 crank, TRW/Speedpro dished pistons. Good pistons are $800 (JE turbo pistons), heavy slug pistons like speedpro (good pistons but heavy) are about $400. You could get a good used set of alum. heads on ebay also.

 

I don't really like the 383 for forced induction because it puts the ring pack so close to the top of the piston. If you bring the ring pack down far enough to get a thick crown on the piston on a normal 383 you end up with putting the oil rings over the wrist pin hole. Probably OK on a race motor, but not on something I would expect to live for 20,000 miles or more.

The 383 is also too much motor for a pair of the cheap .60/.63 T3's. You'd have to step up to a larger set of turbos, which will cost more.

You're probably right about not doing it for $4k, the forced induction stuff adds up quick.