Im about to embark on a major, build-up and had been leaning towards a big cube small block nitrous set-up. But then I started thinking about it, why not try a turbo set-up. I have alotta of friends, who are deep into turbo things here, namely DSMs. SO I can get intercoolers, turbos, BOV's, and whatnot pretty cheaply.

But where could I get teh manifolds, or headers to get the project off the ground with? Does anyone manufacture them?

I had heard that people had been using, headers made for S-10 small block conversions and turning them upside down, and they worked? I assume for this to work you have to cut off the bottom of the 4 into 1 on the header, and weld on a flange for whatever type of turbo you want to use? T-3 etc.... Is that true, will the S-10 headers work?

 

The twin'd IROC that I worked with used an old set of V8 headers that were cut, inverted and rewelded in some places for clearance. Not sure what kind of headers they were though. They were bought at a swap meet for dirt cheap.

I’ve got some pictures of the car here

 

The S10 headers should work, but I don't think they will be sufficient for really high horsepower applications. Other than that, you either have to build them yourself, or find some that someone else has already built. Bad Turbo has a set of Kooks headers for sale, but he's looking to get $2000 for them. Kinda steep in my book, but Kooks is one of the best out there.

Here's the set of S10 headers I had thought about using before my goals got loftier. With these, you should just have to weld the flange onto the end of the header.

http://store.summitracing.com/partde...%2D717052%2DNP

Now I'm trying to fab up my own. Not fun...

 

Yeah, that is steep, especially when in theory, you could buy a set of blockhuggers, have a T3/T4 flange welded on and be outta the situation for under $400.

Well why do you think the S-10 headers wont support hi power applications? Do they have small primarys? If so why wouldnt any set of block huggers work? And just pick a set with larger primarys. Like some nice Tri-Ys, then do the same thing cut them off, and have teh flange welded one.

I found a set of turbo headers for a big single turbo system for sale for $300, about 5 months ago. I wish I would have bought those now

Edit: Also just so were on the same page, what exactly are you defning as the headers not being able to support the numbers you wanted to put up. Can you give me an approximate number on that, cause those Kooks that guy has is listed at 1500 hp. I dont want to make that much anyway, cause it would anihilate my block, and I dont have the $ for a dart little M or something. I would be happy with 700-850

 

The reason they are saying that they wont work for high HP (IMO) is because of the heat that will be generated. To make alot of HP you will more that likely use alot of boost. The more boost the more heat. Those headers aren't made from very good material and will likely crack from all the heat cycles. I would imagine that those S10 headers will work fine for what you want (800 hp) if thats at the flywheel. If someothers dont think they would work then I would try and make my own using a good quality metal.


Michael

By the way you have good friends if they own DSM. I own 2.

 

Yeah, Im considering that too, I was reading faq on how to make them from 5/16th flanges and premade bends. Ill go around from fabricators and get some price quotes. But I know welds get expensive quick. And they would require alot of welds.

Yeah Ive got two real good friends that have DSMs, and another good friend who owns one of 15 turbo tecels in the united states. I like DSms for the most part but my friends are really cocky about them. (Just cause an AWD 12 sec DSM will ussualy beat an 11 sec RWD car on the street) So Im planning on crushing their egos with this project I figure a twin turbo 800 hp 406 should accomplish that with little or no difficulty.

Id like to get some more input though on how much those S10 header would support.

 

Well, I just found out that my block for my 383 project is not going to work like I thought. Luckily, my friend is getting me a little M block with the 4.125 bore for about the same amount that all the machining to the stock 350 block would cost me. This is starting to get interesting. My original plans for the 383 were to go low 9's on 15-20 PSI and still be able to drive it on the street at 10 PSI using two Precision SC61 or a set of similar turbo chargers. Now it looks like I'll be hitting 8's and using some turbos with a little more umph to them.

As far as the s10 headers go, they are just standard exhaust pipe that has been bent and welded. I think they would work pretty good for a mild street/strip application for a daily 10 second car, but after 700-800 hp, I think the heat cycles will severely fatigue the welds and they would start to leak. Plus, the flanges used don't look too sturdy, fine for a street car, but under high heat, I'm sure they will warp.

 

I can get them ceramic coated cheaply, how much would that help? And it might see 1500 miles per year, as a street car prooabbly taken to the track once a month or so. Looking for low 10s high 9s. I guess as far as turbo V8s go that would be mild. Nothing uncontrolable.

 

I just started working at Summit and they have a vendor called stainless steel works or something like that that has nice v-8 twin-turbo headers, I'll check tommorow not sure of the name.
Since I have weeks of training ahead of me I don't have access to the computer system.

 

Thanks man that would be cool

 

The stainless steel works turbo headers wont fit in a thirdgen without some wheel well clearancing. Someone on the thirdgen.org power adder forumactually had (has?) a set and said they would not fit the chassis.

As far as headers that work, a lot of people have fabricated their own from steel u-bends or stainless u-bends and steel flanges.

Ive personally built three sets of turbo headers now. Two for thirdgens. All from scratch. It takes a lot of time and some patience but its rewarding watching the whole deal come together.

As for buying shorty headers and making them work, Ive only ever seen the s10 ones in action (aside from the ones mongose posted in this thread).

Good luck!

 

How did they perform?

 

I dont know. he is still building it. LOL

 

Lol well, likely you will see two, cause barring one or two other opportunitys, that looks like what Ill be using. I'll wait for the guy from Summit to get back to me, and Im waiting on one other thing.

But Ive talked it over with the guy who would be helping me put together the turbo system. He thinks that with teh ceramic coating, and not looking to make 1200 hp plus that thhey should work fine.

Only one way to find out I suppose.

 

There is no doubt in my mind that they will work. It isnt the best looking item you can use, but they DO work.

Good luck and keep us posted.