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Rb20 Turbo Upgrade

zedcrazy

By zedcrazy,
in Engines & Forced Induction

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zedcrazy Apprentice

zedcrazy

Posted
Posted

Hi I am trying to obtain some info on turbo's I hope you guys might be able to help me. I own a 1988 nissan 300 zx Z31 import which came out of the factory with a rb 20 nics redtop, I since have replaced with a rb20 silver top , the mods so far I have done are as follows... fitted a inter cooler.. 3'' exhaust.. dump pipe..cat..bov..& a gtr fuel pump.. she goes a lot better now but after 3 months I feel that I'm used to the power improvment & would like to gain extra hp.. this leads me to the next step.. I am considering chiping the ecu ..a diferent Turbo and possibly last change would be injectors and a good dyno tune... what I have been offered as a swap for my standard turbo is a vg30 do you think this is a good idea.. or what turbo would you suggest..as money at the moment is a big factor.. I am confused which turbo as some forums talk about rb25 neos, garrett, hks..t3 t4...so on & so on.. a swap is a cheap way but is it a good choice?? also reguarding the injectors I have heard either rb26 or rx7 series 4..Lastly I obtained a chip for my ecu with cradle which i am going to try it came from a rb20 with similar mods.. hope maybe you guys might have some advise.

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Angry Proficient

Angry

Posted
Posted

yea go the swap man .... as long as u know what your buying ..condition wise.. dont get ripped off.....it'll be slightly laggy.. but with a ECU either chipped or full aftermarket

Dr Drift ecu chipping is about 300bucks i think nowadays....chip it for all your mods in one go ..rather than doing it again after u change turbo

GTR injectors are the go ..plenty of info on the search bar for "GTR injectors into Rb20"

i'm doing similar for my r31 coupe ..redtop eccs ... will have vg30 on 16psi gtr injectors and chipped ecu .. along with FMIC, full exhaust and straight thru cat.

similar mods have seen a ECCS engine make 198rwkw with fmic, exhaust, pod, 16psi vg30turbo, chipped ecu and gtr injectors....

good luck....i love the Z31's ...wish i bought one somedays

Matt

Ronin Experienced

Ronin

Posted
Posted

Yea ive got the dyno graph. i will scan it tomorrow and post it up.

Mods are as follows

Apexi pod

Hybrid FMIC

RB25 turbo @14 psi

Chip remap

Blitz SBC iD II

HKS cam gears

HKS 3" super dragger zorst from turbo back

Aftermarket dump of somekind, dunno what it is

Catch can

It needs a fuel pump as you will see when u put up the graph, it leaned out bigtime uptop.

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