Subject	Here is exactly what caused my Cracked exhaust manifold;
Posted by	nixit on December 29, 2003 at 4:46 PM
	This message has been viewed 161 times.
In Reply To	RPM, oil problem, bad clerance can also spin posted by MikeH(Twin GT35BB Incon Z) on December 29, 2003 at 04:39 PM
Message	Turn 9(?) at Hallet Race Track located just West of Tulsa Oklahoma. Giving MugenRacer or D-Jay (ttnet names) a ride at Hallet, following a C5 Corvette and Andi Barichi in his Silver Supra behind me... We/I were/was trying to get a small drift session going when I lost it. I jumped over the curbing almost sideways and the exhaust SEVERELY bottomed out on the curbing. Due to the excessive exhaust temps (800c), the manifold willfully cracked. BTW, this is also on video. Sorry for the big pictures. They aren't mine.
Follow Ups	EGT gauge Q's and considerations - Sweep 15:46:02 12/29/03 Re: EGT gauge Q's and considerations - nixit 15:53:41 12/29/03 Depends on how much timing and boost you are - MikeH(Twin GT35BB Incon Z) 15:56:59 12/29/03 Also remember that you don't have a CLUE about tuning - nixit 15:58:36 12/29/03 STFU, is my advice wrong ? How much power is your - MikeH(Twin GT35BB Incon Z) 16:03:07 12/29/03 330/360 at 11.5 psi with a cracked exhaust manifold. - nixit 16:06:55 12/29/03 You tune by A/F not by EGT's alone. My A/F was - MikeH(Twin GT35BB Incon Z) 16:19:50 12/29/03 That is inaccurate: - therinL 16:01:13 12/29/03 That's BS, timing has an effect on exhaust temperatures - MikeH(Twin GT35BB Incon Z) 16:04:09 12/29/03 But what you dont seem to understand is: - therinL 16:07:27 12/29/03 Timing , A/F , engine load, exhaust back pressure - MikeH(Twin GT35BB Incon Z) 16:15:04 12/29/03 Stop...just stop.... - therinL 16:16:38 12/29/03 I see you don't have EGT in your car, how much temp - MikeH(Twin GT35BB Incon Z) 16:35:03 12/29/03 I would if I had different goals in mind: - therinL 18:07:55 12/29/03 Then don't tell me my tuning is incorrect if you - MikeH(Twin GT35BB Incon Z) 18:40:10 12/29/03 You lack scope, dumbass: - therinL 18:47:30 12/29/03 You lack scope with your bad breath. A DSM tuning - MikeH(Twin GT35BB Incon Z) 19:15:30 12/29/03 *poof* (wafts of smoke and smell of coolant). - nixit 16:22:09 12/29/03 Smart ASS, My engine - MikeH(Twin GT35BB Incon Z) 16:24:29 12/29/03 Not Ass, but definently smart. - nixit 16:31:59 12/29/03 RPM, oil problem, bad clerance can also spin - MikeH(Twin GT35BB Incon Z) 16:39:08 12/29/03 Here is exactly what caused my Cracked exhaust manifold; - nixit 16:46:24 12/29/03 Long durations of high temps will shorten life - MikeH(Twin GT35BB Incon Z) 16:52:01 12/29/03 I completely disagree. (n/m) - ni[X]it 21:17:59 12/29/03 What part do you disagree with , road racing or - MikeH(Twin GT35BB Incon Z) 21:46:45 12/29/03 Here is Andi following through the smoke... - nixit 16:51:44 12/29/03 you spun a bearing because of detonation imho - aliaZ 18:22:58 12/29/03 My pistons that started to melt had the bearings - MikeH(Twin GT35BB Incon Z) 18:35:33 12/29/03 ok. Any guesses at what the real cause was then? (n/m) - aliaZ 18:37:18 12/29/03 incorrect clearance, oil starvation with combination - MikeH(Twin GT35BB Incon Z) 18:47:12 12/29/03 I hope you shot your engine builder - aliaZ 18:59:11 12/29/03 Here is another theory - MikeH(Twin GT35BB Incon Z) 18:54:00 12/29/03 Sorry Mike, My apologies... - nixit 16:36:01 12/29/03 Don't insult my intelligience by saying I don't know - MikeH(Twin GT35BB Incon Z) 16:44:30 12/29/03 I find that insulting, - AshsZ(In Florida) 19:26:47 12/29/03 My engine never failed on the dyno. I had over - MikeH(Twin GT35BB Incon Z) 19:42:14 12/29/03 Dumb ass 800C won't melt our engines. (n/m) - MikeH(Twin GT35BB Incon Z) 19:23:11 12/29/03 UGH...It was an arbitrary number, I never said: - therinL 19:46:07 12/29/03 That's the way it sounded. You have a built engine - MikeH(Twin GT35BB Incon Z) 20:00:46 12/29/03 What about 1 gauge with a swtich, 2 sensors? - SactoTodd 16:10:56 12/29/03 that's something to consider - thanks - Sweep 16:16:22 12/29/03 Re: EGT gauge Q's and considerations - bosco500@adelphia.net 16:38:39 12/29/03 Westach is aircraft quality and you can buy direct for less. - zoom 17:17:58 12/29/03 will do - thanks! (n/m) - Sweep 21:29:14 12/29/03
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