Thread: Weird Boost Behaviour
01-23-2012, 05:03 AM #1
Weird Boost Behaviour
I noticed my maximum boost was just under the 15 mark on the gauge. It's normally 1-2 bars over this level. It had been sitting on the "lower" level all day.
At the end of the day, on the way back to the ramp, I hold the throttle pinned, after about one minute of WOT a bar turns on and I'm at the 15 mark. Another minute I get one bar over the 15 mark. Another minute or two goes by and another bar turns on. That's weird. So I slow down and pin it again, this time after only a few seconds the gauge goes right up to the normal level of 2 bars above the 15 mark. I do this a few more times and everything is good (normal). What the?
I can only think if a couple of things that might cause this. Excess oil in the Intercooler or hot air in the hull? I'm thinking more likely hot air in the hull and the full throttle run got the air moving??
What are everyone's thoughts on this.
01-23-2012, 06:53 AM #2
could be oil fouling the sensor, we all know they do push a little through the i/c, stand the trailer up in the front for 30min and check how much oil fills the clear check tube on the bottom of the airbox this will give a good indication of the amount of oil going through the intake. also check the bolts on the s/c outlet the one facing the motor as mine had a loose bolt and pushed the gasket out rear bottom corner behind cylinder oil drain back tube. also noticed on mine the s/c had alot of stress placed on the outer casing due to it fouling on the engine mount (i posted about this elswhere pointing to the unused s/c casing lug that i had to cut off to clear the mount) all else fails could simply be heat related from memory i dont think you have opened your hull up have you?
01-23-2012, 07:13 AM #3
No. Yeah all stock (apart from the delimiter)
Will check the other stuff tomorrow.
01-23-2012, 03:43 PM #4
- Join Date
- Jan 2009
It's just the sensor if your not going faster or making more rpm as the boost goes up then it's just a whacked out sensors. The boost gauge is as reliable as the speedo
01-23-2012, 04:22 PM #5
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By Vern in forum 4-Tec PerformanceReplies: 8Last Post: 10-21-2011, 05:55 PM
By wakejumper48 in forum 4-Tec PerformanceReplies: 6Last Post: 08-16-2011, 05:30 PM
By wreckmaster in forum Polaris Open DiscussionReplies: 26Last Post: 01-11-2011, 05:41 PM
By ludikris in forum 2-Stroke PerformanceReplies: 0Last Post: 07-06-2010, 02:49 PM
By peteshauling in forum Sea Doo Open DiscussionReplies: 1Last Post: 01-06-2006, 05:42 AM