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Garrett gt40 on rb30 please help

Started by 1tuft3 · 17 Sept 2012 · 7 replies

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1tuft3Archived member
What do you guys think of a gt 40 .58 comp .85 exhaust on a low comp head studed motor with good head lots of work done to it 6boost manifold top mount 60mm gate 725cc injecters microtech mtx12 x6 coil booster sepret coils 044 411s lsd std auto atm any any thoughts would be grate thanks
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Duke57TTArchived member
No stall converter? Its going to be gayer than aids until it comes on boost. Get a built auto and a 5K converter.
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1tuft3Archived member
Yer no converter would the 4 11s help at all what if i do 2 half cooler pipe to the turbo
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Duke57TTArchived member
4.11's will help. Cooler piping is a bit of a myth as the time to charge the pipes is minimal when you do the maths. You do have a small rear, so thats also going to help. It will be like a manual with a 42 on it. Massive turbos are great, but you need the rev range to make use of them. No point having a turbo that rolls on at 5000rpm and your limiter is at 6200rpm if you get what I mean. Is it a real 42 or a chinese one?
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1tuft3Archived member
Its a garrett gt 40
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Duke57TTArchived member
You can only see what it is like, it will be a bit of a lag monster. You will destroy the stock box pretty quickly. If you are only going to stick 10psi in it, get a smaller turbo. If you are going to go for it and stick 30 psi in it, get a built box and a 5K converter.
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1tuft3Archived member
Thats the plan to get a good box ---------- Post added 18-09-12 at 14:28 ---------- I was thinking max 24 psi
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INFLYTmelbArchived member
your boost level will be determined by your tuner, if your pushing for maximum tuning. Should be fun, good luck!
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