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if i'm thinking on the same path as you, there is no waste gate on the 94-97 powerstrokes. not sure about all the 99+ but i'm pretty sure most, if not all have them. your 95s have an exhaust back pressure valve (ebpv) which is used to help warm the motor on cold days. not sure where you are located, but many people have disconnected or gutted it. i'm in philadelphia and mine is gone completely for my modded exhaust. the only downside is that it takes a little more time for the motor to warn up, no big problem really.
to disconnect it, there is a wire under the intake side of the turbo that you can unplug and forget about.
gutting it involves removing the butterfly valve from inside the housing, which is more difficult. if you do much towing, it might benefit you to set up the ebpv as an exhaust brake (i'm not sure how though) hope that helps
Last edited by 96P_Stroke4x4; Jan 14, 2004 at 12:54 AM.
Just curious, how does the EBPV assist in warming up the motor more quickly? Does is recirculate it anywhere (EGR type setup?) or does just the slight backpressure on the exhaust keep it in the headers longer helping them to warm up?
Thanks for the pics, pretty cool.
Ed
Originally posted by Quadzilla What he said. (Nicely put, by the way.)
thanks for the compliment Quadzilla i try hehe
Just curious, how does the EBPV assist in warming up the motor more quickly? Does is recirculate it anywhere (EGR type setup?) or does just the slight backpressure on the exhaust keep it in the headers longer helping them to warm up?
the ebpv has a butterfly valve that is kept in the closed position to keep most of the exhaust gasses from going through the exhaust. holding the hot gasses in the general area of the motor help to warm it up. the valve then opens when the computer determines that the motor is warm enough