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10.2 On E85, interesting, how does it run usually? Do you typically target that? I only ask because on 10.3ish, i fouled NGK BR7EF plugs very quickly.
Secondly, id be intersted to see how your fuel checks out.
Those autolites, what heat range do they compare to vs an NGK?
Im not convinced the IATS were the real problem here.
As far as "feeding the blow torch", I personally dont think so. I believe 11.5 is to lean for E85, just becuase you dont get knock doesnt mean you are making peak power...
__________________
--------------------------Kyle-------------------------------
2003 Chebby Cavy Runs on CNG 00GT-some LS engine-PG--DOMINATOR
Are those 103s projected Tip plugs? Also, not sure, but it looks like their are equiv. to a NGK TR6...
Also, im no expert, but it looks like i see signs of Detonation AND pre ignition... Which i believe is why that one piston literally looks torched...
Witch is one of the reasons I said double check the fuel system before running it again. It doesn't cost anything to flow the system and clean everything.
__________________ *
* 2001 WS6 M6. 12.46 @ 114.4 with a lid,filter and macs on regular radials no times with TNT.sold
93 teal cobra with 72hundred original miles.sold
03 redfire cobra.12.6 @114 bone stock with 1100 miles on it. New times with pulley,chip,cat back,and nitto's=1.62/ 11.43/ 120.8 mph.sold NOT MISSED!!!!!
04 GMC rclb 5.3/a4. ran 14.64 @92 100% stock.
Poor lil pistons lost their oil, overheated the rings, and the rings not only try to grip the cylinder wall but they also expand in the land and crack themselves and try to split in lands, one from another.
Sorry to hear the bad new...if you dont mind please tell me about the twins and how do you like them on the street,driveablity,turbo lag?...and pic of the setup..very interested in this
I to burnt #7piston in my 5.3, Im ordering a used on from ebay as we speak! Cylinder has a small nick, but this is my practice engine, so Im learning to tune on this one! I think the 11.7 afr was to lean, and intake temps of 154 took it out! Good luck!
10.2 On E85, interesting, how does it run usually? Do you typically target that? I only ask because on 10.3ish, i fouled NGK BR7EF plugs very quickly.
Secondly, id be intersted to see how your fuel checks out.
Those autolites, what heat range do they compare to vs an NGK?
Im not convinced the IATS were the real problem here.
As far as "feeding the blow torch", I personally dont think so. I believe 11.5 is to lean for E85, just becuase you dont get knock doesnt mean you are making peak power...
I chose a 10.2 afr to stay on the safe side with that much boost and no cooling of iat. The Autolite 103 is equivalent to a NGK TR6
Are those 103s projected Tip plugs? Also, not sure, but it looks like their are equiv. to a NGK TR6...
Also, im no expert, but it looks like i see signs of Detonation AND pre ignition... Which i believe is why that one piston literally looks torched...
I believe it probably went lean also. It was running really hard thru first gear, and started popping severely after hitting second gear then pretty much layed over in high gear.
I had to add 10% fuel to get it to crank the next day, just to get it off the trailer. I am thinking my Megasquirt picked a bad time to start crapping out.
I am going to re-do all my efi wiring and double check my fuel system before the next engine goes in. I also found 5 bent rods on the other pistons that were fine.
I believe it probably went lean also. It was running really hard thru first gear, and started popping severely after hitting second gear then pretty much layed over in high gear.
I had to add 10% fuel to get it to crank the next day, just to get it off the trailer. I am thinking my Megasquirt picked a bad time to start crapping out.
I am going to re-do all my efi wiring and double check my fuel system before the next engine goes in. I also found 5 bent rods on the other pistons that were fine.
What was your injector duty cycle?
__________________ 2002 WS6 Twin turbo by Speed Inc. 7.25 @ 202
Best 60' 1.19 Best 1/8th 4.75 @ 160 mph
Turbo kit built by Dan @ Speed Inc.
Tuned by Jim @ Speed Inc.
Suspension and chassis done by Eric @ Midwest Chassis & Performance
Motor by LME, Late Model Engines. TX
Crew ~ Pro Stock John LSx ODR #385
Sorry to hear the bad new...if you dont mind please tell me about the twins and how do you like them on the street,driveablity,turbo lag?...and pic of the setup..very interested in this
My turbos are GT35 ebay clones. I knew going into turbos I would probably
break some stuff so cheap turbos and a cheap engine were on the menu.
I have no complaints whatsoever with these turbos.
My cam had the biggest effect on turbo lag until i put a looser converter in it.
Now it is pretty seemless. I went with a 4500 stall nitrous converter that I already had. If your cam isn't too radical, lag shouldn't be much of a problem.
Looks like it went lean, torched a few pistons, and heated the rings on the other.
I am in the progress trying to blow up my 5.3 back up motor, non intercooled, E85, 30+ deg at 19-20lbs. 60+ full hard passes later on the street and its still running fine with no blow by.
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1987 Firebird/1.395/6.037/114.97/9.444/144.14
Street Tires/1.685/6.548/114.04/9.965/144.37
-DOMINATOR
NOT MISSED!!!!!
