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New Turbo...Have some Q's

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Old 11-19-05, 01:40 AM
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New Turbo...Have some Q's

Alright guys i just upgraded my turbo with an borg warner S200 turbo...Im using 1000cc injectors for my secondarys and need to know if my stock s4Turbo fuel pump can do its job at 10psi right now....Also is an tial 38mm wastegate too small? It seems even with my .6bar spring i get boost spike of up to 15psi and prolly would keep going up if I actually give it full throttle. on my wideband i get AFR in the mid 10s but im not too sure if its wise to use the stock pump. help me out thanks....
Old 11-19-05, 02:04 AM
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Originally Posted by AsianFlip06
Alright guys i just upgraded my turbo with an borg warner S200 turbo...
Got a compressor map handy?
I know guys have been using the larger S300 and even some S400's, but I have no idea what the S200 can do.

Im using 1000cc injectors for my secondarys and need to know if my stock s4Turbo fuel pump can do its job at 10psi right now....
No.
The stock fuel pump can barely handle the stock fuel injectors.
You're running 50% more fuel injector capacity over stock.


Also is an tial 38mm wastegate too small?
IMO, yes, it's too small.
We use only HKS 50mm or 60mm units or a Tial 46mm.


-Ted
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