Just curious if anyone on here would know what a gtx3071 would be like on a rb25 ? I think a 3076 be to much for my needs and I remember my 3071r on my sr20 made 420 horse so got me thinking
Just curious if anyone on here would know what a gtx3071 would be like on a rb25 ? I think a 3076 be to much for my needs and I remember my 3071r on my sr20 made 420 horse so got me thinking
a 3076 will offer similar power to the 71 but at a lower boost and an almost unoticable increase in lag
3071 is a touch small for your engine, hell i would probably be going for a small housing gt35if you look into it i can tell you the lag difference and spool up times will be minimal.
no doubt someone will be along soon to tell me im wrong but i have witnessed it first hand :P all three turbos on similar sized egnines
Last edited by 59bhp; 09-05-2014 at 07:17.
What sort of power you looking for
The way I see it a gtx3076 is 500 plus. And gt35 def out of the question
450-470 be all I want.
this is a huge over simplification, turbo selection is much more complicated than brandishng peak numbers about. Both a 3076 and a 35 will make 450 - 470 at a lower boost and a hardly noticable increase in spool up, a 71 will be in choke for most of the map. Hell most 71's ive seen have been on 4 cylinder < 2000cc.Originally Posted by eager
Dont get me wrong it will do it, but there is no future proofing.
have a look through this thread anyhow, plenty of garret dyno results from 3071-gt35
http://www.skylinesaustralia.com/for...-dyno-results/
Last edited by 59bhp; 09-05-2014 at 10:35.
I think the GTX3071 would be awesome for that power on an RB25. It can make over 500hp on a built SR20...
You see it wrong then. A GTX3071 will do that without blinking.
Exactly well then I have no need for the larger 3076 piman ? If the gtx3071 with correct housing give what I want and more yet be super responsive
That's where my money would be, but Ben actually uses that turbo so he's the one to listen to.
For max response, get the smaller housing.
So would a gtx3071 run out of puff or anything on rb25 or make power all way to limit
I read that skylineau link above? Plenty pushing the neo in stock form.
450-470 would be awesome and as you say possibly not stress the turbo that much either.
It likely be top mounted on 6boost
The question then. What is more stressful to a engine. Bigger turbo with lower boost. Or smaller turbo with bigger boost. To achieve same goal in power
Reading 59bhp first post above,
It would have to be a pretty special event to break an RB25 regardless
well there not as strong as made out. In fact stock engines fail all the time because of poor ring land design.
But pushing 450 on a rb25 is risky enough.
That's news to me. Apex bolted a massive turbo to their Skyline in it's early days and ran 500bhp track sessions all say long.
Seen plenty of rb25s fail even on moderate power levels, a mixture of oil starvation(drift and track) and blowing piston rings apart. It seems to be a complete mix and match, i know 2 people with rb25s that abuse the hell out of them, with high mileage (around 150k) and seen others that have shit themselves just on the road when being given some.
I was always told 450 is the absolute limit for rb25s in stock form. And about 550 for gtrs. Otherwise you shorten the life considerably.
It broke loads IIRC, that's why they fitted the v8
Are the ring lands going due to det or something else?
Ye plus there bad design. The det and lean running and boost blows the lands
Nissan fixed the issue in the r34 series rb25, known as the neo. Better design piston and much stronger rods
Well, I learned something today
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