Twin scroll/divided housing manifold.
Realistically speaking, you have two options:
(1) Remove and sell the ATP kit, getting whatever you can for it, and purchasing a twin-scroll GT35r kit (if you can find one).
(2) Keep the turbo, discard just about everything else, and have a kit fabricated by a competent, experienced, knowledgeable fabricator. This is what I did.
(1) Remove and sell the ATP kit, getting whatever you can for it, and purchasing a twin-scroll GT35r kit (if you can find one).
(2) Keep the turbo, discard just about everything else, and have a kit fabricated by a competent, experienced, knowledgeable fabricator. This is what I did.
Hey its blackonblackevo with the atp kit..... I'm trying to help you out just like everybody else in the thread. You could of taken our advice before but now your just going to end up spending far too much money to achieve something you could of done by listening to us earlier.
Scorke
Scorke
I ended up having about as much invested had I bought a top-shelf GT35R kit and had it installed. My custom setup however was better in several ways than an off-the-shelf kit, so I was very pleased to go that route. The car usually must be present for the fabrication, so I wouldn't expect to see custom work offered as a kit. You should consider this in choosing from those two options.
Hey its blackonblackevo with the atp kit..... I'm trying to help you out just like everybody else in the thread. You could of taken our advice before but now your just going to end up spending far too much money to achieve something you could of done by listening to us earlier.
Scorke
Scorke
When did i say i dont take advice?
Last edited by blackonblackevo; Mar 21, 2007 at 10:36 PM.
I can guarantee you that manifold will cost in excess of 1200 dollars. That guy does great work but does it all himself, and to get a skilled fabricator to build something for you it is not cheap.
You don't NEEED two wastegates for any turbo, however in order to do a twin scroll manifold right you need to separate the pulses between the divided runners, which can only be done with two wastegates. Look at how AMS does there 42R kits and you will see what I am talking about, running a setup like Drifto, which is who runs MPfab's (Walker's) divded t3 manifold is better than running a straight t3 manifold in terms of spool but will not be as good as a twin wastegated setup.
I suppose another way to do it would be to run the wastegate after the turbo like AMS does on there 35R 5 bolt kits but that would make for a tight fit.
Scorke
You don't NEEED two wastegates for any turbo, however in order to do a twin scroll manifold right you need to separate the pulses between the divided runners, which can only be done with two wastegates. Look at how AMS does there 42R kits and you will see what I am talking about, running a setup like Drifto, which is who runs MPfab's (Walker's) divded t3 manifold is better than running a straight t3 manifold in terms of spool but will not be as good as a twin wastegated setup.
I suppose another way to do it would be to run the wastegate after the turbo like AMS does on there 35R 5 bolt kits but that would make for a tight fit.
Scorke
Although he does a decent job it is still not perfect.
A 44mm gate is more than ebig enough for a 30R, wastegates size is not dictated by the size of the turbo, it is dictated by the amount of boost you don't want to run on a big turbo.
The less boost on the bigger the turbo the more wastegate you need, the smaller the turbo or the greater the boost the lesser the need for a large wastegate.
Scorke
A 44mm gate is more than ebig enough for a 30R, wastegates size is not dictated by the size of the turbo, it is dictated by the amount of boost you don't want to run on a big turbo.
The less boost on the bigger the turbo the more wastegate you need, the smaller the turbo or the greater the boost the lesser the need for a large wastegate.
Scorke
The logical choice is two WG, but this can be sidestepped with some clever engineering. It is a tricky proposition, but Walker (Drifto) has it nailed after some initial testing. There are no boost control issues that we've seen, and the performance is absolutely unparalleled. To this I can attest first-hand.
If AMS could of made it with one wastegate I'm sure they would of as running two is hardly the cheaper route, two gates, two sets of flanges, two more things to leak...... they did it for a reason.
Scorke
Scorke
How much of a gain over a regular T3 manifold did walker see with the divided housing/manifold? From what I remember he had good results but nothing out of the ordinary for any other T3 flanged 30R setup correct?
I think there is a lot to be had in perfecting a divided/twin scroll housing on any garret gt 30 or 35R just would love some cold hard proof
Scorke
I think there is a lot to be had in perfecting a divided/twin scroll housing on any garret gt 30 or 35R just would love some cold hard proof
Scorke
Well, for a 1000whp car, it (dual WG) can be assured of not presenting an issue, but if it truly would present an issue remains to be seen. Sometimes, taking the safe play is, well, safe . . . especially from a vendor's point of view.
Although he does a decent job it is still not perfect.
A 44mm gate is more than ebig enough for a 30R, wastegates size is not dictated by the size of the turbo, it is dictated by the amount of boost you don't want to run on a big turbo.
The less boost on the bigger the turbo the more wastegate you need, the smaller the turbo or the greater the boost the lesser the need for a large wastegate.
Scorke
A 44mm gate is more than ebig enough for a 30R, wastegates size is not dictated by the size of the turbo, it is dictated by the amount of boost you don't want to run on a big turbo.
The less boost on the bigger the turbo the more wastegate you need, the smaller the turbo or the greater the boost the lesser the need for a large wastegate.
Scorke
