Dropping boost in mid climb last season.
- Thread starter Tuesday
- Start date
Put di electric grease on all the connections i could, changed the plugs and fixed wire on tvc control wire, new fuel filter.
Wont really know for sure until I start riding.
The dyno also takes clutches out of the equation so maybe I have/had a clutch or belt issue causing overreving.
Sled was also dry and not packed with snow so true riding conditions have not been reproduced.
I have a good feeling without clutches and dry setup everything seems to work.
Time will tell.
Wont really know for sure until I start riding.
The dyno also takes clutches out of the equation so maybe I have/had a clutch or belt issue causing overreving.
Sled was also dry and not packed with snow so true riding conditions have not been reproduced.
I have a good feeling without clutches and dry setup everything seems to work.
Time will tell.
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Have had exhaust leaks before. Exhaust looks great. Sylvan laker sells a header with a lifetime warranty and no exhaust donuts........no more exhaust leaks
Took the sled for a test rip today. At the beginning seemed to be working ok but after 5-10 min and driving through very fine soft snow it didnt want to build boost at all. Kept sputtering when you would stab the throttle. I am guessing there must be some sort of grounding issue when things get wet. I am not really sure even where to start looking.
Ran fine on the dyno but add snow and it has a problem. Still need to pick up an AF sensor hopefully that will help diagnosis the problem.
Thoughts?
Ran fine on the dyno but add snow and it has a problem. Still need to pick up an AF sensor hopefully that will help diagnosis the problem.
Thoughts?
I had one that gave me some serious troubles. fought it for a while. Put it on a dyno @ Sea level (literally) and it pulled strong and solid. Went up in altitude and it ran like crap again. Tossed a new Regulator on and its been rock solid ever since. Maybe fuel pressure reg?
Best of luck
RS
Best of luck
RS
Is moisture getting in around your coil caps?
If it was the regulator why did it work at sea level? I assume it was giving random fuel pressure?
I will try some different coils this weekend.
8k this sled has run so strong with very little problems........this gremlin is becoming annoying!
Keep you updated. Thanks for the input.
V
Vi-PEC Powersports
Well-known member
If i have to guess, after all the basic maintenance you performed, i would go straight to the regulator, next thing would be efi box.
vi-pec powersports
N
NM
Well-known member
I have some regulators here you can try.
We stopped using the Malpassi regulators a couple years ago because they were prone to moisture getting in the body and rusting the spring.
We now use a small powersports regulator with a base of 44 PSI. It is a rising rate and works great.
We stopped using the Malpassi regulators a couple years ago because they were prone to moisture getting in the body and rusting the spring.
We now use a small powersports regulator with a base of 44 PSI. It is a rising rate and works great.
V
Vi-PEC Powersports
Well-known member
Same here for our race nytros. Proven setup(we work with aeromotive style FPR). I had some problem with my personal 2008 nytro(impulse turbo) that used a BEGI fuel pressure regulator..the thin aluminum layer inside de regulator was cracking and loosing pressure, i was suffering from the same symptoms this gentlemen i suffering from.
vi-pec powersports
N
NM
Well-known member
Just moved my sled and on top of things now i have an exhaust leak. I thought it sounded a bit funny yesterday but today it was loud like a tunnel dump and lots of exhaust coming from inside the tunnel. Plugging the exhaust makes no change except all the exhaust comes out the tunnel.
Will fix that while i am at it and see what happens.
Will fix that while i am at it and see what happens.
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T
Tarzannr1
Well-known member
Exhaust leak? Didnt you buy a new exhaust header last winter?
