my truck surges after 5in exhaust installed...
08-08-2005, 08:58 AM
#1
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my truck surges after 5in exhaust installed...
i installed 5in straight pipe on my truck and now if i nail it from a stop or kick it down from a cruise to WOT the truck feels like it is hitting the rev limiter.....do i not have enought power for 5in? i do not have a fp gauge. i am running out of fuel? or should i just take the 5in off and go to 4in.
08-08-2005, 07:00 PM
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It sounds like it's just the cruddy tranny down shifting to far, banging the rev limiter, and then finally catching and going. Mine does that and I have 4" exhaust. The exhaust has nothing to do with the downshifting.
08-08-2005, 08:12 PM
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I don't know much about the 24V trucks but the 12V trucks will loose power and responce with the 5" exhaust unless the truck is at least 475 HP. I found this out myself and so did many others.
Bruce
Bruce
08-08-2005, 08:49 PM
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Originally posted by 1dslram
I don't know much about the 24V trucks but the 12V trucks will loose power and responce with the 5" exhaust unless the truck is at least 475 HP. I found this out myself and so did many others.
Bruce
I don't know much about the 24V trucks but the 12V trucks will loose power and responce with the 5" exhaust unless the truck is at least 475 HP. I found this out myself and so did many others.
Bruce
08-10-2005, 06:42 PM
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A stock turbo won't even come close to being able to support a 5" exhaust. An HX40 with enough fuel will work but an H2E or a B1 is much better. We have tried HX35-40 hybrid but not enough air for the fuel needed. Don't forget you also need to get the air in, an aftermarket intake is necessary for the airflow.
Bruce
Bruce
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08-11-2005, 04:56 PM
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The HP loss was minor, only 15-20 hp the real problem was a loss of drivability. Large flat spots and stumbling. On one truck we reinstalled the 4" from the head pipe back and the truck returned to normal. I was a 383 hp and dropped to 355 but as I said it was hard to drive and I couldn't pull my trailer. I went with a Pius H2E W/14cm wastegated exhaust housing and a stupid pump. That combo put me over 500 and I could pull my trailer again. Also no drivability problems.
Bruce
Bruce
08-11-2005, 09:43 PM
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Bruce: I am glad I have not experienced those issues with mine. I really like the sound also, not raspy and have not experienced any resonance yet. However I have to say that I have not pulled with it. For now I am happy with the install.
08-14-2005, 05:15 PM
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Had a guy yesterday come over to me after I shut her down and say "WOW that is so cool, I can hear the turbo spooling down" "Did you hear it?"
"Could you start it again so I can hear it?" He has a Cat diesel pusher motor hog. Says he wants to get a CTD too.
I like my 5", heck I hardly listen to the stereo anymore and drive with the window down cause I want to hear it purr.
"Could you start it again so I can hear it?" He has a Cat diesel pusher motor hog. Says he wants to get a CTD too. I like my 5", heck I hardly listen to the stereo anymore and drive with the window down cause I want to hear it purr.
08-14-2005, 08:23 PM
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Doc:
I doubt it will sound better over the landline in fact sound worse. Paste this URL into your browser address window and hit enter. I listen to this every time my computer starts
http://dustyrock0.tripod.com/5_Inch.wav
I doubt it will sound better over the landline in fact sound worse. Paste this URL into your browser address window and hit enter. I listen to this every time my computer starts
http://dustyrock0.tripod.com/5_Inch.wav