c5z16z

sorry bud,, theres good info here ,,

one thing led to another ,, i am not trying to be an *******,,,

c5z16z

op did you find anything help full for your compression needs

poltergeist 02

iTrader: (65)

i did. it just got a little confusing with two/three questions going at the same time. it's all good though, don't sweat it.

c5z16z

so what would my dynamic compression be if my cams intake ABDC happens at 46 deg ,, thanks for the help

427LS7HCI,
AND BWW3588,

SSTYCOON

iTrader: (2)

Good thread.
with the help of a few guys on here. Im gona be installing a 226/230 111+2 cam. My 243 heads are milled .030. Will see what the PTV in a few weeks.

taman86

iTrader: (19)

Good tech info here

c5z16z

what can my dynamic comp be with my cams 46 deg ABDC,,,

when i bump my static comp to 11.7

c5z16z

^^^^^^^^^^^^^

bww3588

iTrader: (49)

I'm working on it man. Working 12 hour 3rd's doesn't leave much ls1tech time.

01ssreda4

iTrader: (96)

That you in the cubicle?

bww3588

iTrader: (49)

I wish...I'm lucky to have a chair...unfortunately, it's older than dirt and has been reduced to it's plywood base.

bww3588

iTrader: (49)

C5c16z, is that intake closing at .050 or .006 lifter rise? The .006 will give more accurate calculations.

c5z16z

my cam card only shows valve timing at .050 i dont see valve timing at .006

c5z16z

^^^^^^^^^^
were can i find my valve timing events at .006 i dnt see it in the cam card,,

but the ones i specd were at .050 ABDC 46 deg

bww3588

iTrader: (49)

Ok man...what I have come up with is right about 9.5 to 1. You should be fine on 93. If your cam had a little more overlap, it would be even better. But what I can come up with says you will be fine with a spot on tune.

c5z16z

i thought 8.5:1 dynamic was the max compression i could run on 93 pump gas ,, how much more overlap will help drop that 9.5 to 8.5 ? will advancing or retarding the help with me being able to run 11.5 static and a 8.5 dynamic compression ,,,

i have heard 8.5:1 dynamic is max and about 12.0:1 static is max for pump 93

if i can be in the 8.1:1 to 8.5:1 dynamic i will be good to go and mid 11s for static should be nice,,

and i guess i am screwed i am going to need a custom cam that will allow me to run that dynamic compression ratio more overlap,,i have 13 deg of overlap with my current camshaft will 16 deg help also more overlap more of that choppy sound correct ....

CameronVic

iTrader: (5)

I believe you're trying to say:

.006 off = 63cc for 10.6:1 compression
.012 off = 62cc for 10.7
.018 off = 61cc for 10.8
.024 off = 60cc for 10.9
.030 off = 59cc for 11.0
.036 off = 58cc for 11.1

I know I know, old thread revival. I googled "milling 799 heads" and this thread popped up. Perfect info, this is exactly what I needed confirmed, but I just figured I'd correct it in case anyone else searches and needs the info like I did.

I'm going from 862s to 799s and wanted identical compression, so I had .015 cut off. It appears that I will be exactly where I want to be.

SHAREEF SALEH

following

G Atsma

A thread that left off three years ago??

01ssreda4

iTrader: (96)

5 year old thread!!!!! Search function is working this morning aint it.