solution to jdm twins overboosting with 3" exhaust
04-08-13, 07:56 PM
#16
That is the pressure I have chosen with my boost controller - with boost controller turned off it ran around 14psi I think.
Stock boost is around 11-12psi from memory.
I have been running 15psi on first turbo (below 4000rpm - using 2nd boost controller tweak) and 18psi on both turbos above 4000rpm (still running sequantial setup) for about 12,000 miles and everything is running fine.
I have 95,000 miles on the odometer btw.
I too will be pulling off the twins soon and replacing with a Garrett GTX35R.
Last edited by Evlc36; 04-08-13 at 08:03 PM.
04-08-13, 08:21 PM
#17
17-18PSI is well known to be the upper end of acceptable boost level for the JDM ceramic twins without significantly shortening their life (unless you are really unlucky)
That is the pressure I have chosen with my boost controller - with boost controller turned off it ran around 14psi I think.
Stock boost is around 11-12psi from memory.
I have been running 15psi on first turbo (below 4000rpm - using 2nd boost controller tweak) and 18psi on both turbos above 4000rpm (still running sequantial setup) for about 12,000 miles and everything is running fine.
I have 95,000 miles on the odometer btw.
I too will be pulling off the twins soon and replacing with a Garrett GTX35R.
That is the pressure I have chosen with my boost controller - with boost controller turned off it ran around 14psi I think.
Stock boost is around 11-12psi from memory.
I have been running 15psi on first turbo (below 4000rpm - using 2nd boost controller tweak) and 18psi on both turbos above 4000rpm (still running sequantial setup) for about 12,000 miles and everything is running fine.
I have 95,000 miles on the odometer btw.
I too will be pulling off the twins soon and replacing with a Garrett GTX35R.
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