- Joined
- Jun 18, 2001
I've detonated my fair share of 109 motors and if I remember correctly the HG's seemed to blow WAY before knocking holes in pistons. Especially a custom forging which should be able to take considerable abuse without failing.
I've detonated my fair share of 109 motors and if I remember correctly the HG's seemed to blow WAY before knocking holes in pistons. Especially a custom forging which should be able to take considerable abuse without failing.
I've detonated my fair share of 109 motors and if I remember correctly the HG's seemed to blow WAY before knocking holes in pistons. Especially a custom forging which should be able to take considerable abuse without failing.
i think this fast and alky needs to come out.
well don't start out balls to the wall !! just creep up on it. What were ya running for plugs ???? what did they look like?
And it
doesn't matter whose piston it is the ring placement is incorrect for a turbo
application.
Chris remember the 87 White Limited with NO motor with 27k on it .. That had a burned piston and the headgasket was fine
I think that failure came from knock. I'm betting the knock sensor is unplugged or has a issue in the wiring. In the fast B2B i beleive that if you set the timing attack rate to zero. when knock occurs and it doesn't pull any timing it will show no knock.
Also verfing the timing is a very important thing to do on the aftermarket ecm's. I have found a few gn's that the timing was off as much as 5 degrees.
One other thing you might want to consider is have the Wideband checked.
on a another side note if ya run alky and pump gass run it a tad richer say 10.8 -11.0 any leaner than that is asking for trouble IMO
Yea i guess everythings going to have to be checked on the new motor set up and checked again. I took alky out its for sale in the for sale section
If this failure just happened for know reason it's got me bumed as i just purchased a stroker set-up from mike licht before Xmas.
I took alky out its for sale in the for sale section
sorry alky didn't do this damage.
Aside from the seriously high severity of the wear, the lopsided pattern looks fairly typical for an off-center motor, doesn't it?
And it
doesn't matter whose piston it is the ring placement is incorrect for a turbo
application.
ok ... back to the original post ..
Is the original post about why his piston failed or how he should have Otto tune his car
Has anyone considered the engine was just run hard and the piston failed?
We are not curing cancer here guys. Its racing. Fix the engine and get back to burning some rubber.