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  #21  
Old 10-07-2017, 09:40 PM
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Forget Nitrous for anything except aiding spool on a big turbo and then make sure it is controlled by an ECU.

Personally in your shoes given your current spec I'd be spending the cash elsewhere.

Better ECU, bigger turbo. They will net you better and far more safer gains.

I can't remember if you went 2.1 stroker or just kept with the 2.0L.

a 35R will be a lag fest on either but less so on a 2.1 (you'd be suprised just how much difference the 0.1L makes.)

I'd say a rotated GTX30R is a far better match for a 2.0L and a combination I know for certain works very well.

Sure once going a 35R will be silly quick but to get the best from it you'll need cams, valves, double valve springs and atleast 8500rpm.

Do not under estimate how laggy a 35 will be on a 2.0L. It's bad enough on my 2.5.
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  #22  
Old 11-07-2017, 07:12 AM
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My build consisted of a 2.1L, with 272 kelford cams and springs and head porting. So yeah i might just stop dicking around and get this twist mount manifold fabricated.
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  #23  
Old 11-07-2017, 07:23 AM
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Stock valves? If so I wouldn't be going anywhere near high rpm.

Personally I think you'll hate the 35 on a 2.0L especially on a road car.

Track car is a different story as it should be in the sweet spot all the time.

I think history is going to repeat itself though and you won't listen to advice and go against it. That's your prerogative but just remember this post when you're not hitting full boost until close to 5500rpm.
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  #24  
Old 11-07-2017, 07:31 AM
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Just to Add to that I think a rotated GTX30 tuned properly is by far the best turbo for a 2.0/2.1 not only will it be responsive as hell but on a GC8 you'll probably be quicker than mine. So you'll have the driveability and the power. That's a win win in my book.

The GT35 will be a pig on the road. It'll be nothing, nothing nothing, everything, run out of revs, change gear and repeat. You have been warned
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Last edited by dazdavies; 11-07-2017 at 07:33 AM.
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  #25  
Old 11-07-2017, 11:23 AM
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Yeah. I 100% agree with Daz. And i rember back to when you were looking for turbos and this same advice was banded around back then. Im pretty sure i suggested either a gtx3071 / 76, or look at something like a dom2.5 (which BTW is basically a fancy billet wheel stock location gt3071). Infact im pretty sure i even tried to sell you my dom2.5 aswell.
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  #26  
Old 11-07-2017, 12:00 PM
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Quote:
Originally Posted by dazdavies View Post
Stock valves? If so I wouldn't be going anywhere near high rpm.

Personally I think you'll hate the 35 on a 2.0L especially on a road car.

Track car is a different story as it should be in the sweet spot all the time.

I think history is going to repeat itself though and you won't listen to advice and go against it. That's your prerogative but just remember this post when you're not hitting full boost until close to 5500rpm.
To the contrary mate... im listening.

I am using stock 2004 wrx valves. Redline is tuned to 7800rpm
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Last edited by VUSSUTE; 11-07-2017 at 12:02 PM.
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  #27  
Old 12-07-2017, 06:07 PM
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I know nothing about twisted mounts but just say I left my motor exactly as it was but twist mounted the turbo, would I actually feel the difference?, Not thinking of my car but a project that I'm hoping will take Subaru running gear and will probably have a fair bit of room between the firewall and engine and no pollution gear will be needed.
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  #28  
Old 12-07-2017, 06:55 PM
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Twist mount is more done to fit larger turbos that dont have subaru style fitment. Different flanges for the exhaust entry and exit. (Or V band) And also larger air inlets like 4" that simply wont fit under the OEM manifold. And sometimes such large turbos that simply wont fit. It also means FMIC needs to be done.

Twist/rotating an OEM turbo probs wouldnt make any meaningful differance, other than the difference from the FMIC.

But when you compare a stock location version of a larger turbo to that same turbo that is twist mounted. Then the twisted one will perform better. Example : a stock location gt30 made with subaru fitment housings and small diameter intake vs a regular gt30. The insides of the turbos are all the same, same wheel sizes etc, but the stock location wobt perform as good. Probably mainly because the stock location turbo has been choked down on the intake with a 65mm intake to fit under the subaru manifold. But the regular version has a 4" inlet.
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  #29  
Old 12-07-2017, 07:05 PM
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Quote:
Originally Posted by dazdavies View Post
Just to Add to that I think a rotated GTX30 tuned properly is by far the best turbo for a 2.0/2.1 not only will it be responsive as hell but on a GC8 you'll probably be quicker than mine. So you'll have the driveability and the power. That's a win win in my book.

The GT35 will be a pig on the road. It'll be nothing, nothing nothing, everything, run out of revs, change gear and repeat. You have been warned

This... (thread closed)

using the Perth-WRX mobile app
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  #30  
Old 13-07-2017, 09:39 AM
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Says a guy with a VF turbo.

Have a gtx30 on my 2.0 with e85 with dual avcs. Has 410hp at 21psi. Goes great after 4200rpm.

RCM have a ready to go twist mount kit or you pay to get it fabricated.

Front mount wise,get a good flowing 75mm thick core and try to make your piping as short as possible.
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