Gt42

[vcosmin]

With a GT42 you'll be slower than most budget tuned hot hatches on regular road. You probabil will have a 1500rpm - powerband or lower with stock revlimit. AFAIK there was a sugestion on forum - buy the smallest turbo that can give you the power you want - at least for street use :-).

[mac2226]

I'm sure will20v is using a gt42 with a 2.2 but don't no about head work besides twin 7a custom cams engine stock pistons and uprated rods I've been told
will be fine and he had his standard maf on cold pressure side mapped by mrc best of asking him he made 600+ and maxed out his injectors 750cc so I would go 1000cc to be safe and fuel pumps I would def run two one in tank and one inline as I'm doing so on my small gt35 but built to take that and more

[driftin jo]

I agree, even if you can get the GT42 for free it would cost you a lot less to buy a
GTX 3076, which will make 600+ hp and the supporting mods will be half the cost of the 42, you will also have much less lag and no need for over 7.5k rpm, this
alone will save you a fortune.

[G60Rallye]

I would echo what has already been said about that turbo being drag racing only. You are not going to get it going on the road even with a 2.5. As for what you would need to extract everything from the turbo you will need to put over 10k into the engine easy.

[AndyP]

What are you going to use the car for? I would have thought that a GT42 is going to have monumental lag for a road car meaning that, especially on UK roads, you'll hardly ever get the chance to open it up.

[bigcooler]

I have a chip set of dimitri that im running so would be a problem carrying on with dimitri if he wanted to do it. Would it be nessasery to do a stroker? Or more efficient should I say

[S2central.net]

I am not up to speed on that particular turbo but if you are aiming above 500bhp then you are looking at head work, forged rods, exotic pistons and much uprated fuelling. Stock MAF won't play there reliably either - you are looking at aftermarket ecu or someone like dmitri doing a custom tune with Hot film MAF. Big exhaust and intercooler are de rigeur too of course !

[bigcooler]

Yeah sorry what I need to do to the engine etc for all out fun with this beast

[S2central.net]

Are you talking about modifications just to physically fit that turbo to the EM and associated plumbing or what else needs done to extract the best from it.... In saying that it is better to look at the question from the other way - what are your hopes, requirements or expectations for a bigger turbo - lots of mid range torque or an all out screamer for maximum power ?

[bigcooler]

I would like to know what modifications I need to do to use the gt42

[V6quattro]

I dont have a valid excuse for that other than I have come in to one at a very good price and I LOVE IT

If your happy whit 500hp or so just get a smaller turbo. If you like to run the gt42 at its full potential a lot of modification are needed.

[bigcooler]

It must have been a sign from god seeing the vid then being offered this

[driftin jo]

So I could run it with standard ecu (with a remap) and wont have to get vems etc? I have the 6 speed s2 gearbox also will that take the power? What sort of power will it produce?

It will make 850-1000 hp depending on the options you choose for the GT42.
Also you will need 2 044 fuel pumps.

were you inspired by a recent video posting by any chance ?

[bigcooler]

I dont have a valid excuse for that other than I have come in to one at a very good price and I LOVE IT

[V6quattro]

Wy do you want a gt42?? 900hp?