3071GT vs GTX

[stifler1603]

http://www.ebay.com/itm/Precision-5...Parts_Accessories&hash=item3f18aaf913&vxp=mtr

 

[whytie]

http://www.owendevelopments.co.uk/p...arrett_ODGTX3071R_(Nissan_200SX_SR20DET_fit)/

thinking of buying this instead of the normal gt3071r, looking for around 450

Im not up to date with turbos, any downsides to the gtx one?

 

[red reading]

Best select the right one as surge will become an issue if the rest of your setup does not match it, but they are very good on our cars.

 

[campbellju]

Whytie, what's the price for the OD GTX turbo?

 

[whytie]

I've heard it's around £1500 I've not actually phoned them to ask though.

Forged pistons, stock cams
800cc injectors
custom built manifokd
3" inch exhaust

what should I look at to help me make my choice,

 

[red reading]

Cams, cam timing, comp ratio, compressor and turbine map, you will also need an inline filter in a braided oil line from Owens to feed the turbo, stock location and t25-28 flanges are ultimately restrictive on exhaust flow and 450 is a struggle to get unless everything is spot on, highest on a set up like your was 463 at 2 bar. .63 exhaust housing is restrictive as well .

 

[whytie]

To be honest 450 is not that important, just want it running smoothly.

Would the normal 3071r with the 84 trim be better suited.

I don't have the experience to say which is the best route.

 

[red reading]

If power is not that important , .63 ar gt3071r with bronze bearing cage conversion with a anti surge inlet housing, and if you got a decent set of cams and set them up properly it would work very well.

 

[red reading]

And you still need the braided oil feed line with a inline oil filter.

 

[whytie]

Thanks I'll contact Owens and see what they say.

Out of curiosity why not the gtx version ?


What cams would you advise

 

[red reading]

Cost, and the turbine side is ultimately the restriction on a t25 foot print turbo, cams anything that is road/rally and has a power curve that is rated to the engines rev limit...so 2-7000rpm , but you will have to get vernier wheels and get them set up correctly buy an engineer with dial test indicators, a lock stop and timing wheels....with out doing It right you might as well not bother.

 

[whytie]

Id rather spend that little bit extra to do it right than regret not doing it after.

what cams would you advise

 

[red reading]

Kelford 186 A.

 

[whytie]

Ta