devs2k

F20c/F22c is an above deck motor; the piston actually comes above the block. This means the head gasket and the head are almost at the edge of the piston. Adding a thick head gasket puts it right above the piston, and now there is a lot more pressure on the gasket. That’s why they’ll keep popping no matter what.

Irishflame27

Rob! was using an IP 3mm HG, AP2 retainers and new STOCK headbolts

The 3mm HG is something that works very well, but has its downfall, like Devs2k said, when using the thicker HG you are putting it right into the fire so to speak, thats why one good misfire or detenation and bye bye head gasket, the stock HG is more forgiving, I will be most definatly making the change over to a 3mm HG because we only have pump 91oct out here, and making big power on that is VERY dangerous, i have also been tossing around the E85 idea, but Tom from InlinePro says that Jeremy Allen and others over there dont like it because they "CLAIM" it causes breakdown on internal engine components on engines they have built, take that for what its worth because we know people have ran E85 for years with no issues.....

devs2k

Even though its not a perfect solution, I would still use a 3mm HG if I am looking to push serious power.

trbod00

i was running dual maps. a 93 map and a 110 race map. my new motor im just starting will be e 85 im thinking.

trbod00

my family owns a large construction company so i have a huge discount on oil. i changed it every 500 miles and ran either a honda filter or a wix racing filter. i probably had badluck. i was on stock internals. but im goin all out on the next motor since my block and head are fried. i can actually drive the car still and its fine but horrid knock at 2500 rpms and it still hauls a**. but since im geting a whole new trans engine and turbo i cant really hurt anything and i can play around and not worry about wrecking a good engine. i can also get my tuning skills better

trbod00

oh i forgot to add in. when running water/meth i was told to change my oil alot sooner. the oil analysis company said methanol or alcohol breaks oil down faster then gas. so just like the ethanol.

JoeyBalls

thanks, I will be changing every thousand, send the oil away and see what it says, changing it every 500 would almost be out of the question for me unless the Oil really goes to shit.............

Bigeggroll

yeah rob blew his headgasket on oem bolts if u think about it w/ a 3mm hg ur pretty much increasing the size of the weakest part of the motor, but it's better to lose a HG than ur entire motor.

here is a link to one of the threads where he talks about it

https://www.s2ki.com/forums/index.php?showt...&#entry18441283

as far as e85, i'm not saying tom and jeremy allen don't know what they're talking about b/c they most certainly DO, but i can't see any issues that could arise w/ the internals if u change ur oil more frequently or use a motor oil w/ good acid neutralization capabilities... my only 4 concerns w/ e85 is availability, consistency of the blend, cold starts and oil change frequency. mobil1 actually recommends running turbo diesel motor oil, go figure.....

siadam

So, all this talk..when is the big tune date?

Irishflame27

I want to see what what the stock internal F20/F22 can really do, i have no doubt it can hit 750+ whp because it already has been done, but i still dont think i would run my car that hard, i think 650whp or so is a nice safe number, and still is a down right machine that not very much can keep up with....