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Thread: Which Turbo?

  1. #1
    Guest CrazySx's Avatar
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    Which Turbo?

    Is the 2870r still the one to go for if you go stage 3 or is there a new all singing all dancing equivalent?

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    Guest mattvaughan180's Avatar
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    I got gt2871r on mine itís good to be honest and does the job well but Iím sure turbo technology has come on since they come out I know people use the Garrett gtx range(donít ask me the difference) and people go hybrid turbo route,
    I know Borg Warner do there efr range and there meant to be the bollox but I havenít heard of any srís running them


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    Guest JackB's Avatar
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    If you're open to any turbo and a complete custom map etc... You can not go wrong with the new garret turbos on our stuff.

    Take a look https://www.garrettmotion.com/racing...ct_Day1Garrett

    The size of a t28, with capability to flow 550 bhp.....

  4. #4
    Guest R3K1355's Avatar
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    Quote Originally Posted by CrazySx View Post
    Is the 2870r still the one to go for if you go stage 3 or is there a new all singing all dancing equivalent?
    Bit old hat now really, plenty of other options available for people who want to try them out.

    Garrets new G range turbo's look pretty tasty.

  5. #5
    Now with 400bhp....
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    Quote Originally Posted by JackB View Post
    If you're open to any turbo and a complete custom map etc... You can not go wrong with the new garret turbos on our stuff.

    Take a look https://www.garrettmotion.com/racing...ct_Day1Garrett

    The size of a t28, with capability to flow 550 bhp.....

    These are meant to be amazing, if not that then a gtx2867 would be a god bet.
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    id be looking at the borgwarner turbos if I was buying new.

    7064 or something like that.

  7. #7
    Guest zeppelin101's Avatar
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    The G series turbos will be impressive, but are expensive because of the turbine alloys.

    If you want minimum fuss for stage 3 you're stuck with the older GT2871r, but if you're willing to go for a custom map then pick your poison.

    I'd probably follow green's logic and look at BW. 7163 is a bit of a monster on an SR, easy 425hp and will get you 420lb-ft by 3500rpm. It's a belter of an all rounder, just expensive to get setup with due to manifolds etc. A full race jobby will set you back nearly $4000 plus taxes and shipping!

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    7163, that's the one I ment. I was saving for one but happened across an absolute deal of a 2871R so reluctantly fitted that.
    I was going to go for the T4 flanged internally gated version. I think that APW guy does a manifold that would work.

  9. #9
    Guest jamesd's Avatar
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    Jesus i'm going totally old school so Got a Greddy T518Z waiting to go on mine

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    Has anybody installed and got a map of GTX, new G series or EFR turbo on a stock block sr20?
    Last edited by screaminsilvia1; 19-10-2018 at 14:57.

  11. #11
    Guest R3K1355's Avatar
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    The GTX has been done and I'm sure you'll find the EFR's are well, the G-series hasn't been out for very long yet though.

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    Guest ekjim's Avatar
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    Here's the new Garrett G25-550 vs GTX3071R series turbo on an SR20. I was thinking about getting this for my Red Top SR20.

    https://youtu.be/AYzi_5O_lCI
    Last edited by ekjim; 21-10-2018 at 20:54.

  13. #13
    Guest hooky's Avatar
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    Quote Originally Posted by ekjim View Post
    Here's the new Garrett G25-550 vs GTX3071R series turbo on an SR20. I was thinking about getting this for my Red Top SR20.

    https://youtu.be/AYzi_5O_lCI
    The G25 looks massively more responsive against the GTX3071R, but at 400HP I would love to see the same comparison against a GTX2867R. I would say the 3071 is a bit big for that application.

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    maybe look here https://www.garrettmotion.com/boostadviser/

    Then take the biggest they recommend

  15. #15
    Guest R3K1355's Avatar
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    Quote Originally Posted by hooky View Post
    The G25 looks massively more responsive against the GTX3071R, but at 400HP I would love to see the same comparison against a GTX2867R. I would say the 3071 is a bit big for that application.
    Yea if you want 400 then get a 2876 or 2871R and run it flat out, don't run a larger turbo at less power because you'll just have un-necessary lag.

  16. #16
    Guest zeppelin101's Avatar
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    A twin scroll GTX30 would give that result a run for it's money with the right cams in.

    So a twin scroll G25 looks like it has potential.

    It's funny the comments refer to EFR7163 - they are brilliant but the spool results they refer to are twin scroll! You would see something similar to the GTX30 for response with a mono scroll.

    Be careful comparing mono to twin scroll results and across different frame sizes. A larger turbine but twin scroll could still be better for low end than a smaller turbo. It totally depends on the efficiency stack up between the turbine and the compressor as well as the wheel inertia.

  17. #17
    Guest ekjim's Avatar
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    Does Monkey London run a Garrett gtx2867r on his s15 , I think that car looks like it goes really well and I think that's 400bhp. Anyone got more spec on his engine setup ?

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