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Best Turbo for 2.5

Old Jul 28, 2008 | 02:02 PM
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Default Best Turbo for 2.5

I am in process of having a 2.5 built up for my newage WRX wagon. It's going to be fitted with some drop in pistons and some version 5 sti heads that i have arp head studs etc etc.
I will be fitting a MD321T in the near future but can't quite afford it at the moment so i wondered what would be a descent stop gap turbo for a couple of months.
I have a vf35 at the moment which i'm told is not ideal.
I'm thinking maybe a secondhand vf30 or a vf34 will do the job any thoughts ?
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Old Jul 28, 2008 | 02:10 PM
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TD05-20G? vf30/34 very similar flow rates to VF35
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Old Jul 28, 2008 | 02:12 PM
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VF30, 34, 35, etc. are all similiar sized...........not ideal but should see you around the 330-350 mark which will be nice to drive with large dollop of torque in the interim

alyn
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Old Jul 28, 2008 | 03:12 PM
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20g on the 2.5 would be ideal IMO.
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Old Jul 28, 2008 | 03:33 PM
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If you can find one cheap enough I would put a td06 on that will give good power till you can afford a better one
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Old Jul 28, 2008 | 03:44 PM
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Originally Posted by renno rannes
20g on the 2.5 would be ideal IMO.
hmmm prefer to have the MD321T from Lateral performance.
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Old Jul 28, 2008 | 04:05 PM
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MD321T+ on a 2.5 classic



Banny
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Old Jul 28, 2008 | 04:14 PM
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Originally Posted by banny sti
MD321T+ on a 2.5 classic



Banny
Jesus wept that's seriously impresive hence the reason i've decided the MD321T as my weapon of choice. Problem after the build is that i'm pretty much Skint Eastwood.

Just been offered an Andy forest 20g at very good price
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Old Jul 28, 2008 | 04:28 PM
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vf35 with ported wastegate will be happy enough on a 2.5 to keep you mobile.
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Old Jul 28, 2008 | 05:38 PM
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Originally Posted by banny sti
MD321T+ on a 2.5 classic



Banny
banny thats some good figures there i know the md is an impresive turbo what kind of boost are you runing?
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Old Jul 28, 2008 | 05:55 PM
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If you are only having drop in pistons, and keeping the std rods, I would think very carefully about the 321....
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Old Jul 28, 2008 | 06:02 PM
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been told it'll be o.k as long as it's not reved to the moon.
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Old Jul 28, 2008 | 07:36 PM
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The turbo is only running 1.8 bar at the moment, but will be turned up to 2bar in the near future.

Banny
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Old Jul 28, 2008 | 09:23 PM
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garret gt30r
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Old Jul 28, 2008 | 09:47 PM
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Originally Posted by finchyboy
hmmm prefer to have the MD321T from Lateral performance.

Oh so would I for 450bhp and he said he will be getting an MD321T but with just a set of drop in pistons it may be a step to far ???

I re read the post and see he has a VF35 already so id stick with that as the stop gap.
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Old Jul 28, 2008 | 10:02 PM
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hi i have a tdo5 or tdo6 (one or the other) which came from i 2.5 forged engine i had, its used in good condition i sent some pics to bob rawle he said it was good for about 380 bhp, let me know if ur intrested.

buns
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