Quote:
Originally Posted by Tokay444
Run more meth and use oil catch cans. Spotless valves.
And no, that's not the only reason to run direct injection, and port injection.
|
Quote:
Originally Posted by IzzyGray
I used to spray 100% methanol on my MINI JCW(boy did that engine love meth) and after 25k miles, things still looked clean. I did get a walnut blasting done at 30k miles prior to installing a meth kit. No catch can but was meth tuned. That JCW had more torque than my current M3 too. Yikes.
|
this carbonising effect is an inevitable byproduct of direct injection, it cannot be prevented. The use of additives in the fuel itself is useless, as the fuel does not come into contact with the intake tract or the valves at all; the use of water/methanol injection may slow down the carbonising somewhat (depending on where the methanol is injected and provided it is not yet completely vaporised when it reaches the valves), but cannot prevent it either.