question about boost cut Options

[toyotacrazy]

I have a blitz type R dual sbc. It has a built in boost limiter. I hit the factory boost cut of 14 psi and I want to eleminate it or raise it. Ive heard you can cap off the boost pressure sensor and plug the hose going to it and will eleminate boost cut. By doing this will my tvsv monitor still work? Im thinking the ecu uses that map sensor to control the tvsv. Im in the process of collecting the parts to raise my fuel cut with the homemade controller. thanks

This post has been edited by toyotacrazy: Jun 5, 2007 - 9:02 PM

[bodhi]

sounds like basic boost cut then, i'm not familiar with a tvsv monitor, but I can't imagine it will show anything if it is blocked off. make the FCD that you were on about and fit that to the ecu wiring. You can then trim the boost cut up to what you want. bear in mind though that with the standard ecu map and the standard 440cc injectors, you can't boost over 16PSI as you will begin to under fuel because the fuel map does not go any further and your injector duty cycle will be getting close to max.

This post has been edited by bodhi: Jun 6, 2007 - 5:34 PM

[toyotacrazy]

sounds like basic boost cut then, i'm not familiar with a tvsv monitor, but I can't imagine it will show anything if it is blocked off. make the FCD that you were on about and fit that to the ecu wiring. You can then trim the boost cut up to what you want. bear in mind though that with the standard ecu map and the standard 440cc injectors, you can't boost over 16PSI as you will begin to under fuel because the fuel map does not go any further and your injector duty cycle will be getting close to max.

Im waiting on the resistors to come in for the fcd. Otherwise it would be done by now. I wanted to run 16-17psi max. The only reason Im going to run that high is I have a fmic and alcohol injection. I figure that if stock boost is 10-12, toyota probably designed it well enough to handle 16psi especially with the mods I have. Thanks for all your interest
-toyotacrazy