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260 psi compression test!!!

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Old 10-15-2003, 10:19 AM
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Default 260 psi compression test!!!

around what compression is that you think?

this head and head gasket combo bumped me up from 200-260. i didnt think this head was milled that much! the turbo defentilly spools up faster!

i'm thinking from 9.5-10.5:1

going to do a leakdown for fun now.
got an appointment for the dyno mon. morning.
Old 10-15-2003, 10:23 AM
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Default Re: 260 psi compression test!!! (fastludeh22)

260 comp.... hmm, my guess is gonna be like ~11:1, thats really high for turbo man

who did your head?
Old 10-15-2003, 12:08 PM
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Default Re: 260 psi compression test!!! (Turbo Sam)

wel the head had to be milled twice due two different iccendents. the last time it had .005 taken off, which as i think about it is ~.25 point.

also im using stock headgasket cause i didnt want to wait for a thicker one. the 200 psi was on a fully stock head .043 head gasket. 260 is on the milled twice head w/.5mm oversized ferria valvetrain, and .029 head gasket.

add that all up and prob. right w/the 11:1. damn! well screw it, i always said high compression was they way to go...good thing i got ed tuning mine.

all this is on a stock bottom end...for now while i upgrade to pauters in the other one.


Modified by fastludeh22 at 10:35 AM 10/16/2003
Old 10-16-2003, 06:36 AM
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Default Re: 260 psi compression test!!! (fastludeh22)

you think this could cause it too run hot? after about 10 mins of driving it hits the 3rd bar
Old 10-16-2003, 07:13 AM
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Default Re: 260 psi compression test!!! (fastludeh22)

3rd bar? Isn't that right in the middle? If so, I wouldn't be concerned as long as it stays there. If you run at 3/4 for an extended time, then I would be scared. But good luck running that high compression. I had always wanted someone to try it out (well-tuned) on a stock block and see what happens. What psi are you going to push?
Old 10-16-2003, 07:24 AM
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Default Re: 260 psi compression test!!! (symba)

well i meant 3/4. going to push 8-10 psi. i know my fan is ****, but it worked fine when i was fully stock, w/turbo. going to try a few things so well see.

ya i always wanted to run higher compression turbo, but like 10-10.5:1. oh well i guess 11:1 will help spool the damn bigass 60-1
Old 10-16-2003, 08:33 PM
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Default Re: 260 psi compression test!!! (fastludeh22)

so i think i fixed the overheating. there was a small leak in my heater hose, causing me to lose coolent. i changed that and drove for a min. it seemed good, but ihad to go to work. well see this weekend.

and on a side note, my dyno app. was changed to thurs.
Old 10-16-2003, 10:45 PM
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Default Re: 260 psi compression test!!! (fastludeh22)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fastludeh22 &raquo;</TD></TR><TR><TD CLASS="quote">

and on a side note, my dyno app. was changed to thurs. </TD></TR></TABLE>
ah damn it
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