Twins Questions

[oldestof11]

I thought Bill's 500hp one had a HX35 over 3B??? Ask him what size housings he has...

[PToombs]

I was searching posts and thought it said S400.

BILL! Can you confirm or deny? What turbos do you have on that monster?

[Tacoclaw]

If you can find a pic of it before he gets on here, the S400 spins counter-clockwise from the front, and the Ht3 spins clockwise.

[PToombs]

No other input on my questions? I also notice Bill hasn't said anything about his turbos either.

[Tacoclaw]

My humble opinion would be to:

Throw a 12cm wg'd housing on there if you have it, with the wg hole drilled/ported and as much as you can stand.

I would personally go as small of an exh. housing as I could find for a DD, since it's no fun waiting for spool-up in that scenario. If you don't have studs or anything, you may find yourself running the larger housing in an attempt to limit total boost, but that's not that great of an option.

I'm running a (dirty) BHAF on mine, with no ill-effects that I've noticed. An S300 is capable of pulling more air then a BHAF can move, but it's not like you're running around pulling it all the time. If it's restricting you at the dyno or track, just pull the filter off.

I'll look around for a pic of Bill's stuff and see what it is.

:edit:

171702 is the primary I'm using.

This was in a Feb '10 post, but I doubt he's changed since then. This is the S475 I believe, same one I have.

[AHineman]

I think Bill runs a 62/71/12 over an s475. It was listed on his sale ad on here.

[Tacoclaw]

his sale ad on here.

I looked for that post for quite a while and couldn't find it, since it had a picture and everything.

[oldestof11]

STOMP may have it... I remember someone with high 14mm VE power having it...

[PToombs]

Thanks Levi. I have the head studded and o-ringed, no worries there. Another friend of mine said the 12 WG and open the WG port also.
As for pulling all the time, I do have the family deformity, the right leg is 2 inches longer than the left. Kinda makes for poor fuel mileage and meeting all kinds of nice people in uniform.

[PToombs]

Ok, time for more questions! I flipped the manifold (ATS) and now the S300 won't go on, it hits the manifold. Am I supposed to put a spacer in there?
And #2, wow, there's not much room for that big turbo under the little one!

[AHineman]

Yep. That or grind your manifold like Bill did, but I'd just get a spacer.

[bgilbert]

Ok, time for more questions! I flipped the manifold (ATS) and now the S300 won't go on, it hits the manifold. Am I supposed to put a spacer in there?
And #2, wow, there's not much room for that big turbo under the little one!

I can't wipe my as% enough with AT$ manifolds! I recommend removing it, selling it, and using a good non-shrunk stock manifold, $$ ahead! I used a spacer, can't remember exactly what size, 3/4" maybe, and still had to grind on the fail manifold. #2, there's plenty of room for that big turbo!

[Mark Nixon]

A smart as people here are, you'd think you guys could use PROPER TERMINOLOGY.
COMPOUNDS would be more appropriate.
TWINS are for V-6s or V-8s, or if you're ingenious enough to run split manifolds on inlines, at which point you use 2 turbos of similar sizes.

Mark.

[The_Head]

A smart as people here are, you'd think you guys could use PROPER TERMINOLOGY.
COMPOUNDS would be more appropriate.
TWINS are for V-6s or V-8s, or if you're ingenious enough to run split manifolds on inlines, at which point you use 2 turbos of similar sizes.

Mark.

The_head thanks you for the above post. /sarcasm

[PToombs]

Bill, I'll pass on that. I won't buy another ATS, but it flows way more than a stocker so I'll keep this one.
Mark, I'm sorry, I just think twins because turbos rate right up there with tits.


Mr. The_Head,


Hiney, I was looking at your pics, where did you run the oil return from the big turbo? It looks like it goes into the support bracket?