Driv200mph

Just getting excited to add more bling!

Adding to the current Super 75 Turbo, MAF, and other upgrades....my conscience is better knowing I will have a:

Stage V intercooler
Stage V header panel
Short Shift Kit
4" exhaust
Polished Hard Pipes

Next wave:

4" Mass Air Bullett assembly
Polished breather tank
Roll Cage
Race seats
Race bumpers, windows

Question: The turbo downpipe is 2.5" right???? I guess I will have to find a 4" downpipe piece to make full use of the exhaust upgrade. Any thoughts?

It will be interesting to see if there is any torque loss on the dyno. Last run was 340HP & 336lbs torque at wheels on 11th pull (hot) @ 16lbs boost with 3" exhaust and stock downpipe from turbo.

NZ951

Is the exhaust 4" the whole way? If not, like I suspect, then a 3" downpipe would not create any more restriction. SFR make a 3" downpipe.

theedge

Are you gonna be selling the old MAF?

DDP

Dude it is not full 4 inch. It goes from a 3 to a 3.5 midway to a 4inch. There is NO way to fit a 4 inch full exhaust up in there. I highly doubt it unless you cut out part of the oil pan or something. But I have heard the sound on the 4 inch is incredible. Good luck!

Matt H

Going to have to disagree as a lister here has a custom made one. The only section not 4" is the DP. And, yes, it is huge!
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theedge

And I think the Canadian Turbo Cup cars had a full 4 inch, but im not 100% sure about the downpipe...

DDP

How do you fit the 4 inch up to bolt it to the back side of the turbo pipe? That is such a tight space there. I can agree that from there you could fit a 4 inch.

RolexNJ

Driv200mph:

That sounds like some goodies you have there, that's great! Did you happen to buy that Stage 5 Intercooler and panel from Lindsey Racing?

turbite

http://www.lindseyracing.com/Merchan...51EXHAUST4INCH

"This exhaust is made from aluminized coated steel exhaust tubing and grows along it's length from 3", to 3.5", to a full 4" in diameter."

User 41221

I'll second that a full 4" exhausts fits, I've seen it with my own eyes. It was someone elses car, unfortunately... sections of it were oval, not round, tho the surface area was supposed to be the same.

Regards,

hosrom_951

BTW, weren't the Turbo Cups equipped with a 4" system? i remember Asuras posting videos of them......

RolexNJ

hosrom_951:

Yes, the Cup Cars had a 4 inch exhaust. The December 2004 issue of Excellence Magazine had a write-up on one of the cars too.

hosrom_951

Ah, so a 4" would fit Thnx!!

RolexNJ

hosrom_951:

Let me clarify. I am not 100% sure about it being to fit, as it being pure bolt-on. Depends on the set-up you have. A few guys on here say it can work. They may know better than me. I can only speak from my personal experience. As of right now, Lindsey Racing has my car and they are installing the 4 inch system on it. I orginally had their 3 inch system on it too. I decided I wanted more power and less back pressure for my application. I'm going to be running their Super 75 turbo with a "p" trim wheel too, and a special downpipe that they made just for me. So at least for my 3.0L, I know it all fits but it is tight in there. I have seen several pics of the finished product, and it looks great too. I also had the entire system thermal coated and the tail pipe chrome-plated. It looks sweet.

NZ951

Nice to see you back Rob.