Blew my motor! :(
#61
10-26-2009, 07:07 PM
sorry to hear about this. I am sure this is a nightmare for you since you just recently put your car together. It sounds like you did your homework and went through a good shop and reputable tuner. Your mods seem somewhat conservative and this happens- damn. Funny thing is that I am going down a similar path. I am sure everyone here would like to learn from your experience.
question to anyone that knows more than I do- if you had a secondary oil pump would it have helped? if so, would the secondary pump need to be parallel or series?
good luck and keep us posted.
question to anyone that knows more than I do- if you had a secondary oil pump would it have helped? if so, would the secondary pump need to be parallel or series?
good luck and keep us posted.
#65
10-26-2009, 07:32 PM
Based on what you described your oil pump quit, the rods starved for oil and a rod let go. That is the only way you could have cracked your case along with having oil pump bearing material in your oil.
It sounds like there won't be much left to salvage.
It sounds like there won't be much left to salvage.
#66
10-26-2009, 07:44 PM
I know how it gets when things go wrong bro. I've been through this road as well. I had problems with my heads before too and don't want to go there, Mike can tell you. Be positive and wish you nothing but the best.
#67
10-26-2009, 07:45 PM
Join Date: May 2008
Location: OC, CA.
Posts: 1,406
Rep Power: 122 
Thanks bro. hope to be back out there running with you guys again soon.
CJV, thanks for the input. That's what the theory is right now based on what we've seen. Is the oil pump failure common? Any way to check it out before it goes like this?
CJV, thanks for the input. That's what the theory is right now based on what we've seen. Is the oil pump failure common? Any way to check it out before it goes like this?
#69
10-26-2009, 08:16 PM
Definitely nothing to salvage... the pump could of failed because it got metal stuck in it after something let go...Just a thought, either way not good.
#70
10-26-2009, 08:19 PM
I hate to hear that. I don't think it had anything to do with your tune. I believe that it was a mechanical failure most likely due to a failure of your oil pump. Until you do the "autopsy" you won't know for sure but I think Betim has a very good idea as to what went wrong.
Since you asked for our input, if I were to ever build an engine I wouldn't go much past rods, headstuds and maaaybe a light porting of the heads. Anything after that can get extremely expensive.
Again, I'm really sorry to hear about your engine.
Since you asked for our input, if I were to ever build an engine I wouldn't go much past rods, headstuds and maaaybe a light porting of the heads. Anything after that can get extremely expensive.
Again, I'm really sorry to hear about your engine.
Last edited by ReeknHavic; 10-26-2009 at 08:27 PM.
#71
10-26-2009, 08:24 PM
The other thing that could have happened is you bent a rod so badly that it clipped the crank counter weight, broke and then destroyed the case.
Last edited by cjv; 10-26-2009 at 08:37 PM.
#73
10-26-2009, 08:33 PM
I will point out one thing... on ure meth it is possible to contaminate the oil with methanol. When this occurs bad things happen. I used to run water\meth on my Supra and eventually nearly pure meth - I used a top end lube in order to help prevent this. Klotz is what I used if memory serves and some methanol suppliers have it premixed.
Anyway, it might be worth checking into with an oil analysis. If you were using methanol for a significant portion of your fueling and NOT just for some octane boost and cooling then this is a real possibility and would appear to be an oil failure...
Methanol likes timing, it is oxygen bearing too. In my experience it makes great power pig rich but this also means you have to watch how much gets into the oil. Ask any racer who runs it full time, methanol can be hard on components. If this car had no fuel system and was on **** water 91 then how much meth it was running MIGHT be a factor. Something to consider for sure especially if the oil in the car was already light weight. Cannot say this did it for sure and it wouldn't change the outcome either but perhaps something others should ponder. FWIW, I wouldn't hesitate a second to run methanol again, on the Supra I was actually planning on using it or race gas in a second tank with a separate fuel system for serious fun on the street :-)
Anyway, it might be worth checking into with an oil analysis. If you were using methanol for a significant portion of your fueling and NOT just for some octane boost and cooling then this is a real possibility and would appear to be an oil failure...
Methanol likes timing, it is oxygen bearing too. In my experience it makes great power pig rich but this also means you have to watch how much gets into the oil. Ask any racer who runs it full time, methanol can be hard on components. If this car had no fuel system and was on **** water 91 then how much meth it was running MIGHT be a factor. Something to consider for sure especially if the oil in the car was already light weight. Cannot say this did it for sure and it wouldn't change the outcome either but perhaps something others should ponder. FWIW, I wouldn't hesitate a second to run methanol again, on the Supra I was actually planning on using it or race gas in a second tank with a separate fuel system for serious fun on the street :-)
#74
10-26-2009, 08:50 PM
+1 or 6 broke and took out the oil pump
My personal opinion is your problems started and compounded when you were dyno testing above 7100 rpm's. Attaining 7549 rpm's was punishing the stock crank, rods, bearings, liners (via liner oilers) and oil pump well beyond the danger zone. I know, I did it. Funny thing was we made the most power at 7500 rpm's.
The other thing that could have happened is you bent a rod so badly that it clipped the crank counter weight, broke and then destroyed the case.
The other thing that could have happened is you bent a rod so badly that it clipped the crank counter weight, broke and then destroyed the case.
#75
10-26-2009, 09:14 PM
Join Date: May 2008
Location: OC, CA.
Posts: 1,406
Rep Power: 122 I will point out one thing... on ure meth it is possible to contaminate the oil with methanol. When this occurs bad things happen. I used to run water\meth on my Supra and eventually nearly pure meth - I used a top end lube in order to help prevent this. Klotz is what I used if memory serves and some methanol suppliers have it premixed.
Anyway, it might be worth checking into with an oil analysis. If you were using methanol for a significant portion of your fueling and NOT just for some octane boost and cooling then this is a real possibility and would appear to be an oil failure...
Methanol likes timing, it is oxygen bearing too. In my experience it makes great power pig rich but this also means you have to watch how much gets into the oil. Ask any racer who runs it full time, methanol can be hard on components. If this car had no fuel system and was on **** water 91 then how much meth it was running MIGHT be a factor. Something to consider for sure especially if the oil in the car was already light weight. Cannot say this did it for sure and it wouldn't change the outcome either but perhaps something others should ponder. FWIW, I wouldn't hesitate a second to run methanol again, on the Supra I was actually planning on using it or race gas in a second tank with a separate fuel system for serious fun on the street :-)
Anyway, it might be worth checking into with an oil analysis. If you were using methanol for a significant portion of your fueling and NOT just for some octane boost and cooling then this is a real possibility and would appear to be an oil failure...
Methanol likes timing, it is oxygen bearing too. In my experience it makes great power pig rich but this also means you have to watch how much gets into the oil. Ask any racer who runs it full time, methanol can be hard on components. If this car had no fuel system and was on **** water 91 then how much meth it was running MIGHT be a factor. Something to consider for sure especially if the oil in the car was already light weight. Cannot say this did it for sure and it wouldn't change the outcome either but perhaps something others should ponder. FWIW, I wouldn't hesitate a second to run methanol again, on the Supra I was actually planning on using it or race gas in a second tank with a separate fuel system for serious fun on the street :-)
thats really interesting information, never heard of this before but I will bring it up to Betim tomorrow and see. I'm running 100% meth, and we were talking about possibly installing a larger nozzle later for MORE meth. Anyone else ever heard of this issue before?