denmah

iTrader: (2)

compression in one cyl is 60psi cold closed throttle the rest are 130-150 soooo haha that one is hurt, i pulled the valve cover and thats ok, gunna be a piston or valve problem, im uploading a video quick, this plug was laid over onto the electrode, any reason why that happened, extreme heat?

itll be up then i have spare soldiers for this motor

denmah

iTrader: (2)

if i watch that video closely on full screen i can see it goes 10.0 afr then goes like 13.0 on spray in the beginning of the pass, nothing terrible. other than the meth isnt on till 10lbs, and i doubt it hurt the cyl then but it could have contributed.

it was smoking a tiny bit out of the valve cover when i checked it out in the pit so i knew i had hurt it.

denmah

iTrader: (2)

adamantium

iTrader: (3)

a4ls2goat

I say its a cracked ringland with scratched cylinder.

midevil1

iTrader: (17)

Fairmont's are sooo butt ugly....lol.

denmah

iTrader: (2)

i always nick a piston im pretty lucky with everything else, i have 4 complete pistons and rods ready to go in that are fine, and a complete 5.3 not even being used right now lol

jleews6

iTrader: (2)

I say just drop the 5.3 in it. It will spool that turbo a little quicker . The electrode laying over or closing up is to much heat. Do you check plugs when tuning? do the plugs have any specs on them?

denmah

iTrader: (2)

very minimal specks on some plugs, i think ill be putting a 3 bar map on my ignition side and leaving 15deg in at lbs and then lowering it for now at 22lbs and putting in the colder plug to be safe.

BottleFedZ346

iTrader: (17)

I noticed in your last vid you were using 6's, im pretty sure a non projected tip 7 would be much safer!

Goodluck, cant wait to see her back up and running!

denmah

iTrader: (2)

Should I keep her at 15 deg or drop that back a little too to be safe, I'll def throw in 7s

a4ls2goat

its better to keep the timing low, especially on pump gas, let the boost make the horsepower

BottleFedZ346

iTrader: (17)

Keep in mind he's also running meth so 15 degrees on pump/meth doesnt seem to much, although Im no tuner so I could be wrong.....

denmah

iTrader: (2)

yeah i think alot of people are forgetting im running 70% mix

our truck is running 15deg up top and its 4700lbs and has nearly the same combo cept he has 799 heads.

skinnies

iTrader: (33)

I swear I see more JY motors die to pump/meth than anything else.

tennerv8

iTrader: (7)

Your success has been with e85 right?

skinnies

iTrader: (33)

Yes most of our builds are e85 cars, we do have some straight pump gas cars though, but don't push the limits on pump.

BottleFedZ346

iTrader: (17)

Curious as to what's pushing the limits power wise on straight pump no meth?

My car is getting finished soon and trying to figure out how far I can push her safely!

denmah

iTrader: (2)

denmah

iTrader: (2)

already back in and compression is perfect, used piston rod bearing etc from anther motor slammed it in