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How much boost do you run on 93 octane??

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Old 09-07-2006, 01:48 PM
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nitrorocket
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Default How much boost do you run on 93 octane??

Just curious as to how much boost most are running qith 93 octane, also what compression?
Old 09-07-2006, 01:51 PM
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mdhmi
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14-15 lbs, but that's with a little meth.
Old 09-07-2006, 01:53 PM
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NICK YOSKIN
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18.1 psi on 93 NO meth and 19*. compression 8.37
i had zero KR!
Old 09-07-2006, 01:59 PM
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nitrorocket
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Originally Posted by NICK YOSKIN
18.1 psi on 93 NO meth and 19*. compression 8.37
i had zero KR!

What setup? Have you ran or dynoed it??
Old 09-07-2006, 03:36 PM
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butcher
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10 psi (I've seen as much as 14psi ) with the stock long-block , 10.5 CR. No methanol and 17-18 degrees of timing.
Old 09-07-2006, 05:26 PM
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jers98vet
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10#'s, 9.62:1 static, 18 degrees timing @ wot 12:1 A/F
Old 09-07-2006, 05:46 PM
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NICK YOSKIN
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Originally Posted by nitrorocket
What setup? Have you ran or dynoed it??

dynoed a long time ago...ran it only at two event... 145traps on a 265 45 17 mt dr
Old 09-07-2006, 05:52 PM
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peter pan
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14-15 all the time with 17* timing, single nozzle of meth and 9.25 compression
Old 09-07-2006, 06:24 PM
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chriswtx
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10-11 psi with the stock long-block , 10/1 CR. No methanol and 17-18 degrees of timing no knock...
Old 09-07-2006, 08:05 PM
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0Slowhawk
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14lbs on my stock motor Vette with a different tune than most.(500hp by 4500rpm,then flatlined to 6600rpm)
Old 09-08-2006, 06:07 AM
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Gatzer
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19psi, 9.0:1 Compression, 20* Timing, No Meth, Alky, or KR on 94 Octane
Old 09-08-2006, 07:00 AM
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AustinL911
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Originally Posted by Gatzer
19psi, 9.0:1 Compression, 20* Timing, No Meth, Alky, or KR on 94 Octane
Cleveland is officially screwed. You had better be bringing that thing out tonite. BTW, I want a ride in that thing.
Old 09-08-2006, 09:38 AM
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nitrorocket
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Originally Posted by Gatzer
19psi, 9.0:1 Compression, 20* Timing, No Meth, Alky, or KR on 94 Octane

What intake and cam are you running?? What intake temps?
Old 09-08-2006, 02:12 PM
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5 Liter Eater
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WTF am I doing wrong? I am running 7 PSI and 13* timing on a stock LS1. Any more and I get KR.

Last edited by 5 Liter Eater; 09-08-2006 at 02:20 PM.
Old 09-08-2006, 02:20 PM
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0Slowhawk
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Originally Posted by 5 Liter Eater
WTF am I doing wrong? I am running 7 PSI and 13 degrees on a stock LS1. Any more and I get KR.
It's probly false KR from the blower setup.
Old 09-08-2006, 02:38 PM
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QuickSilver2002
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Originally Posted by Slowhawk
It's probly false KR from the blower setup.
Or the PCV breathing oil into your intake and lowering your effective octane to about 80.

I had this problem back in the early days of my blower setup. It would knock no matter what I did. I finally realized what was going on with the pcv and once I resolved that all the knock was gone.

False knock can also be a PITA.
Old 09-08-2006, 02:41 PM
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5 Liter Eater
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Could be false KR due to blower harmonics. When I dyno tuned the shop tuner suggested zero'ing out the KR but I was not comfortable with it.

Could very well be oil vapor. I just installed an air compressor separator catch can last weekend and it's got oil in it already. Long tubes going on this weekend, then I am going to sea foam, then retune VE and MAF and see if I can squeeze any more timing out of it. Even a few more degrees would be great!

Last edited by 5 Liter Eater; 09-08-2006 at 05:00 PM.

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Old 09-08-2006, 04:14 PM
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QuickSilver2002
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Do some searches on PCV. Most people don't have it setup right on FI cars.
Old 09-08-2006, 04:59 PM
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5 Liter Eater
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I'm confident it's set up right. It's catching oil and my dipstick is still intact.
Old 09-09-2006, 05:58 AM
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Originally Posted by AustinL911
Cleveland is officially screwed. You had better be bringing that thing out tonite. BTW, I want a ride in that thing.
Last night just wasn't doable for me. You guys should come down here tonight instead.
Originally Posted by nitrorocket
What intake and cam are you running?? What intake temps?
LS6 Intake, 224/226 114lsa
On average I see a 15 to 20 degree increase from 2k-7k rpms.
Haven't seen over 100 degree intake temps yet.


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