Turbo choice on a Celica GT4 (MR2 engine)

[Sean1933]

Hi all,

Im helping my friend build a high power Celica GT4, we want to aim for circa 400-450 on his recently build engine, more if possible. Were a bit stuck on turbo choice as we want to keep it streetable and responsive...we dont want to put a big laggy tubby on just to chase numbers. Any recommendations? I was thinking something like a 60mm dual bearing with a .68 hot side, however will this be too laggy on a 2ltr?

 

Discuss...... ;-)

[Porky1978]

If i were you i would look at http://www.fensport.co.uk

 

They are the people in the know when talking about Celicas. A little expensive according to some but you dont have to buy from them, just get the info you need and buy from somewhere else.

[Sean1933]

i had a look mate but couldnt find much of use really :-(

[JamieP]

Garrett GT3071r good for about 450bhp or GT3076r for about 500bhp

[Sean1933]

Cheers Jamie that confirms what I have been reading, quite expensive tubbys though from what I have been seeing. Just need to consider the lag difference between the 2...im thinking the 3076r ;-) is the better option, 500bhp+ on a built block

Edited May 29, 2010 by Sean1933 (see edit history)

[jaymdee]

Have a look on the MR2 forum -

http://www.imoc.co.uk/forums/index.php

 

[paulrenn]

I'd check out http://www.gt4oc.net

 

Fensport have the knowledge for sure.

 

My GT-Four made around 440 with a Garrett BB turbo, but it was a few years ago now and I don't remember the spec. It is certainly do-able...but if I were you I'd swap the Celica for a Supra...much better base for tuning...

[Wez]

A small BorgWarner would be where I would look, have a look on the fullrace website for options

[Steve]

A small BorgWarner would be where I would look, have a look on the fullrace website for options

 

Come on Wez, Borg Warner dont do small. They are all huge

[edge]

Have a look on http://www.gt4oc.net as previously mentioned.

Have a look for Mr Barry and check out some of his builds. He done some very good setups.

He is our equivalent to chris wilson.

Although when i was a member on there last his engine went bang and i think he may have sold up.

The 3s-gte is a good engine but when running them power levels they become very fussy and not too many last.

[Wez]

http://www.full-race.com/catalog/product_info.php?cPath=214_1167&products_id=2274

[Sean1933]

thanks for the suggestions guys, i've been reading up on the GT4OC and am getting the feeling most people go for the 3076r or 3071r, i just like to be a little different from the rest of the crowd :-) .

 

Oh and I like your suggestion Paul but this is for my mates car so I dont want him having a Supra...thats my terratory! haha. Had 3 to date, crashed my last one and just bought a house, im nearly back in the position to get back into the owners fold so watch this space...i want a track car this time around.