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Jeff NJ Jeff NJ is offline
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Join Date: Nov 2013
Location: NW NJ
Posts: 1,082
I have a GrimmSpeed Manual boost controller in the engine bay (so I don't turn up the boost when the adrenaline is flowing) and I think it works well. It is very consistent as measured with my PLX boost gauge and has increments of .25 psi, so you put it right where you want it. I had a 1.0 bar spring in my TiAl but I found it was not consistent enough for me and this is a better solution, IMO. I have a .7 bar spring in the wastegate.

I am set at 1.0 bar and happy with the performance, so will not set it higher. I doubt 1.1 is an engine killer, but I'm not risking it.

At the end of this thread there is a link to my install: Car ran terrible tonight!
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1988 930 Venetian Blue
Old 06-28-2017, 09:19 PM
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