Cure for PULSING at WOT?
04-20-03, 11:39 PM
#1
Cure for PULSING at WOT?
We were tuning today and I noticed a"pulsing" sound when accelerating hard in 3/4th gears,at 5-6k rpm,s.
In fact ,Badog was driving and I,m in the passenger seat and it was noticeble to me,perhaps because I,m used to it as its my car
It sounds like a engine coming on/off cam is the way I would describe it when the pulsing kicks in,so any ideas where to look guys?
Carl
In fact ,Badog was driving and I,m in the passenger seat and it was noticeble to me,perhaps because I,m used to it as its my car
It sounds like a engine coming on/off cam is the way I would describe it when the pulsing kicks in,so any ideas where to look guys?
Carl
04-21-03, 02:55 PM
#3
Rotary Enthusiast
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Where are your duty cycles? If they're over 85%, there's a chance your injectors are sticking open and causing a rich condition, killing power.
Brandon
BR7 Racing
Brandon
BR7 Racing
04-21-03, 05:30 PM
#5
No 7 Yet ...just installled new 1600 injectors ,max duty cycle was 60% on stock twins so I dont think its is a fuel issue.
The Wastegate and Pulsation dampner are original,so thats something I have not considered.
Where is the Pulsation dampner located?
The Wastegate and Pulsation dampner are original,so thats something I have not considered.
Where is the Pulsation dampner located?
04-23-03, 08:49 AM
#6
root
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Originally posted by mp5
Where is the Pulsation dampner located?
Where is the Pulsation dampner located?
It is on the fuel rail.. But if you have one, that is not likely it.. But if it is the original you should either replace it or remove it.. They are what cause ALOT of engine fires..
-Zach
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