Subject	Re: Pictures of my melted Jun pistons
Posted by	Specialty-Z on May 19, 2003 at 1:05 AM
	This message has been viewed 185 times.
In Reply To	Pictures of my melted Jun pistons posted by MikeH(Twin GT35BB Incon Z) on May 19, 2003 at 12:16 AM
Message	The problem was in your thinking of ONLY 18 psi on pump gas. I believe you, Like us in California have 91 pump gas. I do not recommend going over 13 psi with the poor quality of 91 pump gas. We run 25 psi on stock pistons all the time out here.....But only on race fuel! Hopefully your hard lesson will help others not to make that same mistake. If your going to turn the boost up make sure the cars are properly tuned for it and your running good fuel. Sorry you had to learn the hard way.... I hate seeing these kinds of pics :(
Follow Ups	Pictures of my melted Jun pistons - MikeH(Twin GT35BB Incon Z) 00:16:09 05/19/03 OUCH! (n/m) - spotz 00:18:07 05/19/03 damn (n/m) - Spee 00:28:46 05/19/03 18 lbs of boost is a tad too much on pump gas. (n/m) - Seb 01:00:20 05/19/03 LOL!!! A tad :) (n/m) - Specialty-Z 01:06:59 05/19/03 I could rephrase it and come off harder and say>>>>> - Seb 01:17:02 05/19/03 Aren't there a lot of guys on here that run that - MikeH(Twin GT35BB Incon Z) 01:23:21 05/19/03 That is probably what misled you...... - Specialty-Z 01:29:30 05/19/03 That's exactly what I was thinking mislead him too - SeedyROM 02:37:10 05/19/03 I run 17 lbs on the street all the time. But >> - Arnel(Z32racing.com) 07:37:46 05/19/03 17 is fine for 93 or 94 octane.... - Specialty-Z 10:41:26 05/19/03 i run 20lbs on pump gas, been doin it for years. - Chris(NJ) 01:24:32 05/19/03 I consider myself pretty aggressive and I would not run.... - Specialty-Z 01:35:26 05/19/03 I run 16.5-17psi, 91 octane, 15base timing, and custom EPROM - Scotts94z32 09:55:38 05/19/03 I can not speak for your car because of your custom - Specialty-Z 10:55:16 05/19/03 Thanks. I've checked my plugs before and they appear clean. - Scotts94z32 13:15:15 05/19/03 ok cool...i'll give it a shot...you suggest 17 degrees ? - Chris(NJ) 10:22:53 05/19/03 Yes, You will notice the car will be more responsive. (n/m) - Specialty-Z 10:43:27 05/19/03 But his turbos flow a lot more air at 20 psi (n/m) - U ZCREAM 08:43:58 05/19/03 true (n/m) - Chris(NJ) 16:02:31 05/19/03 I have been running 17psi and my NGK... - Jonezy (Semper FI!!!) 10:33:32 05/19/03 Again.....apples and oranges.....91 Vs 93 is a major ...... - Specialty-Z 10:47:39 05/19/03 Hmm...I ran 18psi on 19 degree timing daily on pump gas. - sparkie 15:40:41 05/19/03 I run 1.30 bar on 94 pump all the time. My timing is at 15 (n/m) - TwinTurboPete 10:34:32 05/19/03 I wish everyone had 94 octane. :-( (n/m) - ZHOUND 11:23:26 05/19/03 19.5 lbs of boost, 15 deg ign, on 94 pump gas and no detonat - Bernie 14:06:43 05/19/03 Re: Pictures of my melted Jun pistons - Specialty-Z 01:05:00 05/19/03 wow thats painful... famous last words: - Red ZX (SoCal) 01:10:14 05/19/03 Next engine I am going start using water injection and - MikeH(Twin GT35BB Incon Z) 01:30:36 05/19/03 Buick GN's also use a knock monitor that might be able - BFastRBLast (Ca) 02:10:37 05/19/03 Then the question I have is... - RSR 08:02:48 05/19/03 Who said I am blaming the builder for detonation? - MikeH(Twin GT35BB Incon Z) 08:24:42 05/19/03 That's not what I meant or intended to say.... - RSR 12:48:53 05/19/03 Re: That's not what I meant or intended to say.... - MikeH(Twin GT35BB Incon Z) 13:10:39 05/19/03 No. Detonation killed your engine. >> - MugenRacer 14:17:37 05/19/03 My pistons didn't break. They melted . Look at the - MikeH(Twin GT35BB Incon Z) 15:04:03 05/19/03 Yikes. - ZHOUND 09:33:42 05/19/03 You can blame it on your turbos at least partially. - sparkie 11:21:43 05/19/03 You seem to have something against my turbos. I feel - MikeH(Twin GT35BB Incon Z) 12:15:53 05/19/03 Re: You seem to have something against my turbos. I feel - sparkie 13:55:56 05/19/03 I dont' have a T25 turbine. It is the GT series - MikeH(Twin GT35BB Incon Z) 14:29:36 05/19/03 hybrid turbo - sparkie 14:00:26 05/19/03 Mine turbos are Garret cartridge. HKS or Incon - MikeH(Twin GT35BB Incon Z) 14:34:46 05/19/03 Thats exactly his point, Turbine and housing are mismatched (n/m) - MugenRacer 14:39:51 05/19/03 He never said anything about housing he - MikeH(Twin GT35BB Incon Z) 14:54:36 05/19/03 See the scrathces in the 3rd pic? Thats from the "melted" - MugenRacer 15:14:24 05/19/03 That is from piston slap. Agains it would have to - MikeH(Twin GT35BB Incon Z) 15:27:11 05/19/03 The pistons that didn't melt also have those same - MikeH(Twin GT35BB Incon Z) 15:28:18 05/19/03 damn-sorry to see that!! (n/m) - Wagz 12:41:07 05/19/03
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