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What Makes the #7 Piston Weak?

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Old 06-11-2005, 04:56 PM
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Each injector? Usually run a -6an or -8an to each fuel rail with the regulator downstream of the rails. No fuel starvation and equitable ditribution on each side. The excess air to #7 and #8 is really unavoidable though.
Old 06-11-2005, 05:27 PM
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Does anybody have the link to that Corral site? My wifes Aviator is at Lincoln now to have the driver head replaced because of a hot spot in #7 cylinder. I'd really like to find out what actually happened. Thanks
Old 06-11-2005, 05:38 PM
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The carb intake would...wouldn't it?

Originally Posted by Reckless
The excess air to #7 and #8 is really unavoidable though.
Old 06-12-2005, 04:58 PM
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It would probably assist with correct distribution. We use a carb style intake for our nitrous motor.
Old 06-12-2005, 05:49 PM
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Originally Posted by bigdsz
Does anybody have the link to that Corral site? My wifes Aviator is at Lincoln now to have the driver head replaced because of a hot spot in #7 cylinder. I'd really like to find out what actually happened. Thanks
There was a loooong thread on this site about it, with a link to the Corral thread. I can't find it, it may have been deleted because it got pretty ugly lol. But, the problem was only with the supercharged Cobras, and it is because of the way the motor is designed not enough coolant flows to that cylinder and alot of guys are popping their engines when they drive at top speed for more than a few seconds. Sounds like a different problem than these guys are talking about here with the LS1.
Old 06-12-2005, 09:27 PM
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what if u put a wide band 02 on the 7 and 8 primaries and do the tune accrding to those af readings. or jus buy a sequential fuel injection ecu to richen those to cylinders up. i guess a different design of intake, still comnposit, is still waiting to be thought up. what about haveing the 7/8 ports a fraction smaller than the rest to compinsate for the lean condition? i dunno, therees gotta be a couple ways to "fix" it for the fi guys
Old 06-12-2005, 10:14 PM
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seems the single plane carb intakes would be a good solution for the fi guys.
Old 06-12-2005, 10:21 PM
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Originally Posted by Lostpatrolman
seems the single plane carb intakes would be a good solution for the fi guys.
make a composit single plane and im sold
Old 06-14-2005, 12:16 PM
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Originally Posted by 8KickassRS9
make a composit single plane and im sold
me too
Old 06-14-2005, 12:18 PM
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Make cheaper ITBs and I'm sold
Old 06-14-2005, 12:24 PM
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What kind / size carb would / do you guys use with a carb? ~800cfm? Demon?
Old 06-14-2005, 12:39 PM
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I got the site:

http://www.harrop.com.au/root_folder...fd7022-00.html

Check these out:


Old 06-14-2005, 01:02 PM
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a way to solve the fule issue would be to have a seperate line for each injector
Old 06-14-2005, 01:54 PM
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That's a bad *** intake! Is that price in Autralian dollars? Hoping that comes out to about $300 US
Old 06-14-2005, 01:59 PM
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Originally Posted by Reckless
That's a bad *** intake! Is that price in Autralian dollars? Hoping that comes out to about $300 US
I wish, I think it is like 1.5 Aussie to 1 USD

But if money is no object, one could:

1- Stuff a huge duration cam on a 106 lsa in an auto and it will purr like a 224/ 112
2- Eliminate #7 & #8 fuel starvation
3- Run some awsome trq and power
4- Kick some major *** at the track.
Old 06-14-2005, 06:11 PM
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Originally Posted by PREDATOR-Z
Old 06-14-2005, 10:23 PM
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that is beautiful...lets get a gp going on
Old 06-15-2005, 03:28 PM
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for what that thing offers the price in us dollors is not really that bad
2500 bucks which is twice what the fast intake combo costs but hell that thing is sexy
Old 06-15-2005, 03:45 PM
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thatd be nice for a twin turbo setup.
Old 06-15-2005, 03:47 PM
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ps, composit would be nicer



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