Hi, I'm looking for 500bhp for my Impreza and wondering what turbo options are available these days
The car is a v3 Sti with 2.1 stroker, closed deck block ect
What are the choices and where
This car is a fast road ocasionally but mainly track car

 

Their are quite a few turbos that would get you that power with the right supporting mods, you have not stated rotated or standard position in your post.SJ.

 

For starters TurboDynamics-MDX555 or ScoobyClinic-GT30R or Lateral Perfomance-MD321V....will make 500+ horses with the right supporting mods,.SJ.

 

I dont mind relocating the turbo if it's better option than compromise as the impreza is an easy engine to rotate for space rather than limit turbo options
What's the preferred and reliable options people.use for track use as its going to get VERY hot compared to road use

Cheers for replying btw

 

MDX 555 Great Turbo. ,,,,

 

The TurboDynamics-MDX555 and the Lateral Perfomance-MD321V are standard position turbos which will be a easier/cheaper option and still make the numbers,a ScoobyClinic-GT30R turbo + Ext wastegate and you will also need a rotated pipe set up and custom or RCM oil and water lines,if you have money to burn then the GT30R rotated turbo with associated pipe work would be the way I would go,as having driven both set ups I just personally prefer the spool up on the GT30R Billet turbo.SJ.

 

I dont have money to burn but I do have friends who can fabricate a rotated turbo kit and my engine is currently not in the car which helps I think

 

For a more affordable/sensible 500+ bhp set up,the turbos that I mentioned from Lateral and Turbo Dynamics would be the way to go then...SJ.

 

If you can get a rotated kit fabricated for very little then that’s the route I would go down, in fact it’s the route I did go down with with. A friend made my manifold up/down pipe for very little

 

Pics ?

 

The right supporting mods is correct question , the 321v does not do500hp without methanol injection e.c.t.or meth in tank or head mods .

 

It was a front mounted setup. Turbo in front of the crank pulley

 

Are you talking from experience or what you have read?I have a good friend that’s running the Lateral performance md321v billet on a 2.1 build who’s pushing out 510bhp so i guess yes you can get 500+ with that turbo without meth if the engine build is right.SJ.

 

My car will be running fuel flex too so will run E85 at times but I want 500bhp from pump fuel then map the E85 in

 

If you have a friend who can build you a rotated set up efficiently for cheap money,then go with the GT30R billet which will make 500+ bhp all day on a 2.1 without making a sweat,but i stand by my comments “IF” you cannot get efficient pipe work built up on the cheap especially if money is a topic...a turbo from Turbo Dynamics or Lateral would definitely be the way to go talking from experience.SJ.

 

I also have a md321v on a lateral 2.35 built by Paul Finch , it made 469 hp . i guess there is something wrong with my engine . with water/meth injection it made 496hp .

 

whole spec make a big difference to results, so will only be as good as the weakest/most retrictive part

 

I have only heard good things about Paul Finch builds so i doubt its that,my friend is running over 2 bar so i guess that has something to do with it.... his car is mapped by himself so safety is less of a concern for him as he Rebuilds his own blocks,he has the rolling road print out from SRR to prove...Personally i would of thought that a md321v is slightly on the small side for an all singing and dancing 2.35 build.SJ.

 

Off course.

 

Well yes but you get the smallest turbo you can get for your hp requirements with regards to spool ect …… do you not?

 

Yes I completely understand,,,So saying that...what was your desired bhp when you built Your engine and specced it with the Lateral MD321V?.SJ.

 

SJ it was 500/450 at the time, but apparently I over spec ed the bottom end so I guess its capable of 800 hp (same bottom end as the nana)… with supporting mods of course. Im currently going rotated so bigger turbo ,I hope it meets with your approval.

 

Not being funny mate,just a question to work out your thinking with your turbo choice,I have been there and done that numerous times now with builds engine mods etc....I just thought i would have a look to see who is still about and if the Subaru scene is still the way it was...Don’t take things personal mate everyone has an opinion,over the years being on forums you learn to respect each one,I look forward to hearing about your cars development .SJ.

 

What heads, cams, valve springs have you got bolted to the 2.35.

 

Where did you get the bananas spec? There’s only a few people that I know of will know that?

 

I did say the bottom end was capable not the top end , but to the best of my know how I have avcs heads and better/ harder valve springs and super tech in and out valves.

 

From Mark

 

Give me the block number & I will tell you exactly what you have.

 

Cool, there’s only Mark, Paul and Steven who who know exact specs

 

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