Pulling KR timing on WOT

[biggmac4]

Will do

[biggmac4]

1st question is which Alloy ? 2618 or 4032? 4032 pistons are quieter , looking at the Zeros log your Idle at 180F is quiet , hovers around .35+/-v so I'm guessing 4032s (I could be wrong)

I do tuning for a guy who has a Drag pak clone (and a real 2015 DP car) 354 ci all forged with 2618alloy pistons, car runs a 2015Hellcat ECU , at WOT it'll pull as much as 2.5-3.5v at 180f operating temp, at 165f operating temp (160F t-stat) it pulls 3.0-3.75v@ WOT . During warm up it's LOUD idling at 1.5-1.6v no matter the T-stat. once it gets to 180 it's around .65+/- .10v @160f it's .90+/- .15v

Looking at your log zeros your fine with a 2.5v min, I'm going to take the Tune you posted earlier in this thread and rework it , it'll be close to what you have but I'm going to change some things that I can't explain here and my dam Phone broke today so I can't do a Video like what I did for the Ram/VVT thread .

2618,s

"SCAT 5. 7 TO 6. 4 HEMI STROKER KIT #1-48507BI- + H-BEAM RODS *.030 OVER PISTONS, KIT TO INCLUDE: ICON 2618 PREMIUM FORGED PISTONS -21. 2CC HASTINGS STEEL MOLY PISTON RINGS SCAT 4340 FORGED STEEL CRANKSHAFT SCAT 4340 FORGED H-BEAM CONNECTING RODS W/ ARP 7/16 CAP SCREWS CLEVITE H-SERIES HEAT TREATED MAIN BEARING SET CLEVITE H-SERIES HEAT TREATED ROD BEARINGS"

[LilSick]

what is -21.2cc?

how much static did that create running whatever head gasket you run?

[PurpleRam]

what is -21.2cc?

how much static did that create running whatever head gasket you run?

21.2cc dish piston with a .040 head gasket, it's roughly 9.30 to 1(with 3.927 bore,9.4 to 1 3.947 bore) .028 and 3.927 bore it's roughly 9.6 to 1 . .035 head gasket and it's in the 9.30s ball park.

If those were +21.2CC dome pistons ...... Whoooo Boy we'd be looking at 16ish ( I have 20.5CC dome 4.0X3.9 G3 with AFR 72CCs sitting on the floor 14.7 to 1....Now that's some fun.)

[biggmac4]

Yes sir dish pistons with .028 thick gasket

[biggmac4]

I attached the voltage log a few post up.

[LilSick]

Yes sir dish pistons with .028 thick gasket

ya'll are way too trusting

i dont give a fuck what it says on a piston box or a cam card...

i measure EVERYTHING



and guys are wondering why they are having issues fml

did you measure the valve to piston or the pushrods (where the plunger ended up)?

[LilSick]

well...

you built a supercharged engine and are running it on gasoline

no idea what .0305 is...

but there is something called effective compression ratio which is determined but stuff that gets measure

it can have something to do with this knock issue you have just identified