Twin scroll on 2.5 hawk STi
 

Has anyone done this conversion to there UK hawk STi?? My mate has a JDM hawk and I love the spool of the twin scroll(not to mention the sound) But I also love the torque of the 2.5 engine from the UK hawk and that any gear can pull the car along.

Now if I could have the twin scroll set up on a 2.5, what would be needed for this conversion?? Would also love to hear anyone who has done this conversion, and how you rate it/worth doing???:thumb:

You've got the sump already john, think its headers, uppipe ,turbo ! Might have missed something ?

And downpipe :)

most importantly you need your own bank card and pin number

good luck with trying to get that from your bride to be John, pmsl

LOL at Lucko. Just put a 2.0 twin scroll engine straight in and enjoy.
The problem is where to find one.

I'd be focusing on forging the 2.5 first

I'm running a 2.5 Sti (495 bhp and 470 torque ) with no engine issues :D

Interested in this myself after converting my bug to a twinscroll back in the day and already missing the sound more than anything.

I'm sure I remember seeing a blob eye on here at some point with a sc46 twinscroll madhammer's maybe??

my hawk is already forged think twinscroll sc42 would make a very impressive road car.

:lol:

defo need a secret stash!!!!:D

trust me ;)

:lol::lol::lol: lmao

dreamers will dream lol

When I had my forged 2.5 built, I ran standard the JDM VF37 for a while before I fitted my LM480.

It spooled well, and produce about 380bhp, but completely ran out of "puff" on the 2.5.

I'll try and find some graphs if relevant/interested?

Yeah Id be interested in seeing some graphs!!:thumb:

why bother twin scrolling it?


http://i14.photobucket.com/albums/a3...psd8d33d75.jpg

single scroll turbo ;)

Flat as my mrs chest

haha, yeah it is a tad, got plenty more top end wise. Its still running standard wrx headers as well so even more to come lol

:hjtwofing

Next time your round my house, Im telling the missus its your fault I keep modding the car!!!:D

You've got more power than me Tidgy:cry:,glad you didn't take offence:thumb:

well the boost profile is hahahahaha

thats at the wheels by the way, just shy of 390 at the fly hahah

http://i14.photobucket.com/albums/a3...psbd349600.jpg

This is a twinscroll turbo on a 2.1...... imagine what it would do on a 2.5. ;)

https://i302.photobucket.com/albums/...owerTorque.jpg

250ftlb @ 3k
420ftlb @ 3.5k
540ftlb @ 4k

A 2.5 would probably smash the diff and box to pieces, with the extra torque and spool up. :D

This (different turbo I believe):

http://i197.photobucket.com/albums/a...ru/Scan004.jpg

This is the 2.5 on a VF37, but can't find the boost plot yet:

http://i197.photobucket.com/albums/a...ru/dyno003.jpg

man vf37 just does not work on a 2.5 does it lol

LOL - nope!! Just could not pass the exhaust gases the 2.5 produced, so totally restricted the flow. Was only ever a stop-gap while the engine was run in and I save up a bit more to buy the LM480 :)

I meant John's set-up on a 2.5.... not your lag-a-tron (in comparison). :D

lag a tron :lol1::lol1::lol1::lol1::lol1::lol1::lol1::lol1::l ol1::lol1::lol1:

LOL!! What turbo is John's running?

me?

Which turbo is this???:norty: