blown head gasket

[jeremy78233]

I'm boiling coolant everytime I shut off the bike, and if I get stuck in traffic goes straight to redline. No water\oil mix but I can sometimes smell it when I'm riding and I keep fouling the #1 plug so I'm pretty sure its a head gasket, but will check for a stuck thermostat just in case. Any way this is the second time I think I've bloown it, my motor is studed and has a plate (.08") but I hit the rev limiter a lot in first gear and wonder if thats what could be causing it what to you guys think? BTW only runnig 6-8lbs of boost full timing.

 

[Commuta_Busa]

what's the boost spike to at red line? Have you thought about backing down the timming a hair?

 

[jeremy78233]

not really worried about the boost pressure or timing I'm trying to find out if while hitting the rev limiter under boost am I losing fuel or spark and if either one of those instances would cause head gasket failure.

 

[cdhoroho]

losing fuel yes
what yr bike?
if 02+ id flash a hard cut(ignition) in there and remove soft cut(fuel cut)

 

[jeremy78233]

sorry, bike is '00, hahn 16g, BOV, tial wastegate, pc3usb, cometic head gasget, studed motor and never seen over 10lbs on the street.

 

[cdhoroho]

id look at upgrading the ecu to a 02+ and flashing the ecu

 

[turbojonny]

Is the 16g internally gated?

 

[turbojonny]

Also, I though #4 was the the fuel cut off cylinder on Gen 1's? If so wouldn't #4 be the likely indicator of soft cut? I'm not saying like I know, it's more of a "hmm" question for the pros.

 

[Moparict]

1 and 4 are the fuel cut offs.

 

[jeremy78233]

My turbo is exterally watsegated....and are you guys telling me that #1 and #4 actually get fuel cut from the rev limiter (thats scary). I was hoping it was cutting spark, so under boost and hitting the revlimiter my bike will be seeing an extreme LEAN condition, someone want to confirm this for me.

 

[OZBooster]

Soft cut is fuel reduction, its why lots of turbo guys now get there ecu's flashed for hardcut .

 

[turbojonny]

Give Boost by smith (Greg) a jingle. He sells the flashers. They let you do all kinds of cool stuff. WAY more stuff than with a power commander, like soft/hard cut, timing, NOS control, etc. I think with flashing the ecu can even play Blue Rays. Not sure on the last one.

 

[jeremy78233]

thanks for all the info, guess i'll try to stay off that rev limiter 'till I figure out what to do about that fuel cut, probably upgrade to '02 ecm and get the flashing software thru greg