Originally Posted by
lancerman
saw in person today. I think the engine fared same fate as my blue car. Misfires with e-85 can lead to pre-ignition. This would have killed a crower rod as well. You can see the cracked pin as well. takes hellava force to do that.
wasted spark fires at BDC as well as TDC. if you have ignitable mixture left over from misfires. you can get combustion at BDC. the rod is at poor angle to handle the load and is simply not designed to handle that kind of compressive force.
I seen pictures of the rod last night. At first I thought, maybe the head lifted, coolant entered the cylinder and thats all she wrote. JR and Karim both told me the head gasket looked flawless and the ARP's checked out fine. The problems arent the eagle rods, im one of the handful of guys who made over 600whp w/them, another local made 636awhp/535tq w/his revving to 9200 on the 1-2,2-3,3-4. Eagles rods in the past DID have some durability problems (pre-ARP2000 rod bolts), they've since corrected the problem and people are making good power on them. I did however ask JR & Karim to find out what kind of AFR's were run prior to this rod being bent on E85, as well as IDC's & timing #'s.. this could be all we need to know to find out what happened, this might make your statement hold true which im not doubting one bit. Even a picture of the spark plugs would be a good diea. It just sucks to see Karims motor end the way it did...
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1993 Plymouth Laser - Eagle/Ross 2.0L, Kelford 272 cams, JMF SMIM, FIC 2150s, Precision 6765, ECMlink V3.
E85 32psi - 649FWHP, 444FWTQ. (ran out of injector).
I FIX AND TUNE (DSMlink & ECMlink) 4G63'S PM ME FOR DETAILS.
Last edited by firebirdvert305; Sep 30, 2009 at 07:47 PM.