A built 2.5 with darton sleeves.

I plan to build a new engine with the afformentioned 2.5 running a Std crank and will be using GT spec headers, 740's and Sti V4 heads. I have a full 3" decat system, ECU will be simtek

So what are the reccomendations please gents, the turbo's i have considered are:

TD05/06-20G
FP red/green
MD321T
GT30/35

 

A big one lol, only joking Ian you are determined to build this one bullet proof arnt you mate.

 

What is your power goal?

Banny

 

yes mate i want it bullet proof! i also want it f****n fast as well, i want to see 400-500, but i also want to use the engine to what it is capable of safely if that makes sense.
I want it to drive awesome with good spool and phenomenal torque

 

An MD321T+ will be just the ticket then and give you the power and drivability that you want. I have just had a similar spec engine built and will be using the same turbo, it is supplied by Mark @ Lateral performance.

Banny

 

We are currently running an AET "drop in" GT30 hybrid on the ScoobyNet Spec C project car (which is now 2.5l). We have recently reached 530bhp / 550lbft on Vpower, but that is on a different spec to your engine. Worth giving them a call though!

 

Now that i could comfortably live with it should go well in a classic

 

happy with my MD321T



<--- view my scooby

 

I have a rotated gt30r on mine but if I done it again I would go with an MD321t the only turbo I'm unsure of is the FP but I really can't see it spooling as soon as the MD ??? the td05/06 20 is the worst out of that bunch followed by what I pressume is a standard fit GT30/35 !!!


So realistically your best choice is an M321t/md321t+ or an fp green/red ???

 

Nothing "worst" about my "standard fit GT30" turbo mate!

 

md321T

 

its well below an MD321t/+ and an FP green/ red


oops just realised you meant your turbo ??/ but that cant be the usual gt30 as even the rcm ones struggle 430bhp ish ???

 

I went for the 321t + a good fast turbo 500'540 very fast road car.

 

It uses the standard subaru .63 exhaust housing and it has a GT 30 core.

 

oh and it made over 420bhp on ps rollers yesterday on the hydra. That was on low boost of 1 bar. Lol more to my setup than just the turbo though. The whole combination gives me more torque and power low down, when compared to my previous ultra responsive twin scroll setup. Full details will be given in the next article, engine stage 3, going live next week on scoobynet. All 50 pages of it. apologies for the format of this, as i am on my mobile.

 

Sounds good, lots of votes for MD321t but as i already have a TD05/6-20g i shall try this to see how it goes, there is scope for improvement thats for sure so i can leave that for another mod another day when i am bored with this one!!!
I can't help but notice how much you can get a GT30 for in comparison to the MD, would the MD really be worth the extra wedge?

 

FP Green

 

there are a few other gt30 hybrids out there

try Alan Jeffery - Engine Tuner for alternatices to the MD range

 

How long would the standard 2.5 crank last with that amount of power though??

 

Its the standard 2.5 crank that goes in all the biggest power builds

 

not hearing good things from the men in the know about the fp green

 

and the men in the know are ?

 

Scoobysmiff.
Don't compare a GT30 with a GT30 Hybrid that simply bolts on using the standard mounting positions. They are a totally different beast altogether. The Hybrid that bolts straight on is normally dearer..... but requires less gas (and money in total) to fit etc.

Marx Mcrae,
Standard crank is fine at this level....... unless of course you fit a billet one and want the best.