Opinions wanted - appropriate turbo for VR V6

[savage1987]

Title pretty well says it all

Plan to run around 12psi cooled, from a 2nd hand turbo with an external 'gate setup.

Looking for (preferably cheapish) options in the 2nd hand market that would suit the 3.8L.

So far most have said T3/T4 or the Garrett from an XR6T. Both of these are rumoured to work quite well on a few cars already. One gentleman from JC forums had a home grown setup in a VP that saw great success using an 'ancient Holset turbo'..

Opinions please
Sam

[Yakky Bear]

i know the active automotive boys have put a gt35/40 garret on a statesman with awesome results

[ED40]

yeah use an xr6t turbo. Good size.

[RRob]

gt30 or gt35.

[TJ]

Not like your lacking displacement so go gt35... maybe even a t04z?

But maybe not enough revs to make use of it.

[savage1987]

Not revving this motor past 5500. 12psi cooled on totally stock motor is the goal.

Anyone know what the XR turbos usually go for 2nd hand?

[TJ]

if its only going to 5500, then a xr6 turbo is probably ideal.

round the 1500 mark i think.

[savage1987]

damn. will keep an eye out for a cheapie.

Was hoping to keep this build under $1k or within a few hundred. All pipework to be done in house, budget being the word of the day.

HOWEVER I was going to buy a cam to suit but decided against it as the stock cam is almost perfect for the job anyway, so I might put the money I didn't spend on that towards a better turbo..

[DCIEVE]

Think I got rid of my xr6 turbo for under a grand a few years back, might be better on the 3.8 v6 but its a dog of a turbo on an rb!

[Rantopotamus]

dude when u do this.. and it works.. for under a grand... ill give you $500 to do the same setup on mine !! lol!!

but for kicks and giggles have a look at this.

http://www.antilag.com/forums/showthread.php?t=26028

[[RX2]]

why do you want an external gate ?
half the turbo's mentioned are internally gated

go internal gate if your doing this on a budget , it will be your cheaper option

id look at a mazda rx7 s4 or s5 turbo possibly a highflowed one.

rotomotion 9452 1500 had a green commo wagon down their for ages which was V6 turbo's you could ask them what that car had on it ?

[PSI 304]

mate of mine did an unopened VS with a T3/T4, made just under 400rwhp from memory.

[savage1987]

Think I got rid of my xr6 turbo for under a grand a few years back, might be better on the 3.8 v6 but its a dog of a turbo on an rb!It should be a lot better matched to the 3.8; quite a few people I've spoken to with similar setups say it's pretty well the perfect turbo for this application bar none.

dude when u do this.. and it works.. for under a grand... ill give you $500 to do the same setup on mine !! lol!!

but for kicks and giggles have a look at this.

http://www.antilag.com/forums/showthread.php?t=26028
hahaha nice link
I might blow the $1k budget but we'll see, I already have the s1 tubular style headers and y pipe that I'll modify into a collector setup, just need the rest of the bits :)

;436553']why do you want an external gate ?
half the turbo's mentioned are internally gated

go internal gate if your doing this on a budget , it will be your cheaper option
Thanks mate, since realised that's a good idea. XR6T Garrett will be the turbo of choice though I think. Since I'm looking at such a good quality turbo, I should be able to get away with an internally 'gated 12psi no worries.

mate of mine did an unopened VS with a T3/T4, made just under 400rwhp from memory.
That was my other option for a turbo but I think the GTR is winning

[kurbn]

wont the XR6T turbo be more laggy in the 3.8 due to the fact its only getting boost from 3 cyl opposed to 6...

perhaps having the XR6T turbo on one side with a 2L rated turbo on the other

just an idea, could be done within your budget if your doing all pipe work and line feeds yourself

[Alt_F4]

wont the XR6T turbo be more laggy in the 3.8 due to the fact its only getting boost from 3 cyl opposed to 6...

perhaps having the XR6T turbo on one side with a 2L rated turbo on the other

just an idea, could be done within your budget if your doing all pipe work and line feeds yourself
??
Its still a 6, only dropping .2L from xr6t donk, so it'll be a good fit... esp. with the extra compression of an NA :D

[savage1987]

yep will be feeding it from all six using reversed stock headers and a collector pipe

[kurbn]

oh.... ur doing one of those jobby's

have never got used to that setup.. looks weird

[TJ]

LOL @ thinking it was only using 3 cylinders.

[iluv2moan]

perhaps having the XR6T turbo on one side with a 2L rated turbo on the other


so have 2 turbos, xr6 turbo off 1 bank and another smaller turbo of the other???

[savage1987]

yeah that's what he's getting at.. a staged setup like the Liberty B4s etc, a big and a small. Works well when tuned properly. BUT for simplicity's sake, I'll just pipe it all into the one and through a nice FMIC.

In other news:
I have discovered that fuelling the thing will be easier than I thought. Stock FPR will do the trick, all I need is around 32lb injectors and a higher rated fuel pump. Running a 2 bar MAP sensor, already got the tune sorted, memcal as cheap and as good as they come.

[Alt_F4]

Would be better off going parallel twin turbo, sequential is a pita.
A pair of s14 turbos in parallel would go nicely on a 3.8L :D

[TJ]

Sequential would be extremely complex to setup and tune, pass.

[BOSS 290]

Anything that will grenade it :lol:

[savage1987]

lmao

12psi cooled should be safe enough for what I'll use it for. It's a daily, I don't feel like grenading it any time soon.

I refuse to set up the piping for twins, single is the go.