36 replies to this topic

[Donalds]

Hey guys I was thinking of adding a vf35 with sti pinks but just came across a vf37 what's everyone's opinion on these And what injectors etc would I need. Thanks in advance

[Reevesy]

Vf 37 is twinscroll isn't it?

[alexGT]

Yea 37 is a twinscroll turbo

[WillC]

Hi Donald,

 

Can you describe your engine build?

 

VF36 37 (Corrected by matt)is a ball bearing version / twin scroll version of a VF34 with titanium shaft that gives a even quicker spool and a tiny tiny bit more top end. At the end of the day the peak performance you will get from this turbo on a 2.0L will be from 200-220kw @ 18 psi / 7K rpm with Sti pink tops. It depends on what you want you want and how strong your block is. The turbo itself will start to get too hot beyond 18psi at 7k rpm.

 
Cheers,

 

Will

[Matt]

Hi Donald,
 
Can you describe your engine build?
 
VF 37 is a ball bearing version / twin scroll version of a VF34 with titanium shaft that gives a even quicker spool and a tiny tiny bit more top end. At the end of the day the peak performance you will get from this turbo on a 2.0L will be from 200-220kw @ 18 psi / 7K rpm with Sti pink tops. It depends on what you want you want and how strong your block is. The turbo itself will start to get too hot beyond 18psi at 7k rpm.
 
Cheers,
 
Will

Sorry but thats wrong?

The vf37 is a journal bearing turbo...and is not titanium shafted....the vf36 is the ball bearing version of the vf37...found on the spec c.....its rumoured to have a titanium shaft..but this is bullcrap as ive seen the split by Michael South and it aint titanium (he runs one on his rally car)

I had a vf37 on my v8 sti engine before i moved over to a much funner single scroll...it made about 200kwatw @ 20psi with sti pinks on the 207....great turbo that makes ya feel like youre driving a fast na car more than a turbo car and it makes peak power a bit above 6k....doesn't do a whole lot after that so loved being short shifted

[WillC]

Sorry but thats wrong?

The vf37 is a journal bearing turbo...and is not titanium shafted....the vf36 is the ball bearing version of the vf37...found on the spec c.....its rumoured to have a titanium shaft..but this is bullcrap as ive seen the split by Michael South and it aint titanium (he runs one on his rally car)

I had a vf37 on my v8 sti engine before i moved over to a much funner single scroll...it made about 200kwatw @ 20psi with sti pinks on the 207....great turbo that makes ya feel like youre driving a fast na car more than a turbo car and it makes peak power a bit above 6k....doesn't do a whole lot after that so loved being short shifted

Could be very wrong good pickup. I may have gotten my models mixed up. You are right matt. Yep go the VF36 not 37 loL.

[Matt]

The 36 is definitely the pick of the two...but to run it you need twin scroll headers, sump and all brackets

But the 37 aint bad in any way...just slightly less spool due to journal bearing... if youre already single scroll a vf35 or my choice a vf34 and pinks will keep you happy

[WillC]

My built 2.0l block runs about the same peak power 213.5kw @ 6500 rpm, 552nm torque and a vf 34 @ 18 psi running out of juice with B4 heads. the actual power number will vary based off the efficiency of your heads, headers dump etc basically the better your engine breathes and retains the heat and consistency the better it'll run.

 

With the actual costs of those turbos however i'd look at blouch units that are rated with higher airflow, greater response ranges.

[Matt]

Yep agree with the above...I got a brand new one for 700 bucks so I jumped at it...bit for the 1300ish new id buy a blouch for the extra dosh

But the 34 comes up often 2nd hand fairly cheap

Im about to put one a a brand new 207 on 205 heads with 272 cams on e85 with good headers....expecting about 230 to 235...heres hoping

[Reevesy]

Im about to put one a a brand new 207 on 205 heads with 272 cams on e85 with good headers....

 

 

Dat spool....

[Matt]

Dat spool....

Yep...it will be epic

Id put a bigger turbo on..but everythings there (turbo, injectors etc etc) for this setup so I may aswell put it together and have some fun...and 230atw was fun in the gen3...in a stripped gen1 .....shits gonna be crazy

Killer b headers too...so back to the awesome sound of el headers...with one lumpy ass idle lol

[Donalds]

I was told the usual story when I bought my car about it being rebuilt re honed skimmed with uprated internals nm but no proof so I'm guessing stock internals. I'm just looking at achieving 350hp which is why I was thinking vf35 as on my blob eye sti I was running standard turbo I think still with pinks a walbro fuel pump good panel filter and a hks turbo back and with the live map I got 350hp

[WillC]

I was told the usual story when I bought my car about it being rebuilt re honed skimmed with uprated internals nm but no proof so I'm guessing stock internals. I'm just looking at achieving 350hp which is why I was thinking vf35 as on my blob eye sti I was running standard turbo I think still with pinks a walbro fuel pump good panel filter and a hks turbo back and with the live map I got 350hp

350hp at the wheels with a vf35?

[Matt]

Yeah thats like 260kw....I couldnt see that happening even with big cams and e85

They will make much like the 34 with the right supporting mods..so about 210 to 220ish on pump and 230-235 on e85...after that they run out of puff

[aekOne]

Um yeah 260kw on a 35 with stock internals. Hmm

[Matt]

Sti pinks will run out of juice at that power aswell

[WillC]

Um yeah 260kw on a 35 with stock internals. Hmm

you guys are party poopers

[Matt]

Lol...id like to see it.....pretty sure the turbo would be a tiny bit out of its efficiency range lol

Put it on race fuel and lean on it I say

[WillC]

It's say you have a really hot turbo trying to spin faster and to get 350hp you'd be running somewhere in the ballpark of 23-25psi, far beyond what the factory efficiency band is supposed to be. You'd be on the FAAAARRRR right of the curve.

[Donalds]

What do you guys think is the best option for approx 350hp out of my wrx