is .49ar hot side too small for my rb25?

Discuss the RB20, RB25 and RB26 series engines.
rb 90 240
Posts: 61
Joined: Sun Sep 09, 2007 5:58 pm
Car: 90 240

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I have a few people telling me that its going to be too small but I dont have huge power goals. Its a hybrid turbo with .49 hot and .70 cold:

comp wheel 59.2mm/82mm trim: 52.1 turbine wheel 46mm/63.5mm trim: 52.48

Anyone have any thoughts?


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BoostFab
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Joined: Wed Dec 03, 2003 8:23 am
Car: S13cp, S13fb, S14z
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if you can get the .63 hot sidemuch better match for the rb25, even if you doht have high power goal

rb 90 240
Posts: 61
Joined: Sun Sep 09, 2007 5:58 pm
Car: 90 240

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I dont think that I can but do you think 350-375 wheel is capable for the time being? I just dont want to get this thing on here and I should have just waited on a different turbo and sold this one I have

gomer23
Posts: 498
Joined: Sun Apr 10, 2005 10:01 am
Car: 1989 Nissan 240sx
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My turbo is a 50trim turbonetics turbo with a .48 hotside....I havent had any issue yet with it. But if you at anypoint want go above that 375 mark you will need a bigger housing....I got this turbo just so i could get the car back on the road. Personally I would find something with a .63ar or bigger.


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