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200K on the clock and 7k rpm at the track? Bravo, my hat's off to you! $4500 roller you drove for three years AND tracked, that car owes you not a thing. Here's hoping its repairable, or at least re-engined, and you're back at the track doing 7K rpm again.
I was running dt40 and it had about 600 miles and 3 de days on it. Watkins is a fast track so 7k was hit a few times going around but i never went past.
The motor was a high milage y2k 3.4 that i brought back from the dead. I never really expected that it would survive forever.
Im sure oil temps and/or the weak head caused a catastrphic issue. The motor has always ate oil buy it was running pretty strong until it wasnt.
So i bought the car as a $4500 roller, fixed it for $150 and drove the **** out of it for 3 years. Im really not upset, but thx for the condulances. This just opens up a bunch of oppertunities. The search for a solution is just starting.
Maybe i can intercept that motor going to Hawaii .
Good to see you take it in stride... this **** happens.
Any video of the laps ? I'd be curious if in review there were any small signs...maybe if you could see what the factory OP gauge was doing...
Were you on sticky tires ?
I'm assuming, but maybe you can confirm water temps were normal. Looks like it was about 70 at the Glen yesterday so ambient were certainly favorable for relatively cool running.
Looking forward to you getting the car back up and seeing the direction you go...
Damn - sorry to hear about this but like you said, you definitely got your moneys worth out of the car and glad to see you're keeping it. If you need a set of extra hands for any work let me know as I'm not super far away so happy to swing by, time permitting.
Ill probably keep this thread going for updates and analysis so keep checking it.
Yea the car owes me nothing but man i really like diving it.
Yea weather was about 70* and i was in street tires. No in car video but i had just checked my gauges on the back straight and water was at the middle if the 0. I do have cfs rads and the car usually reads at that spot.
The guy behind me has video of the failure and he is gonna send it later tonight when he can edit the video down.
Heading home from ny in a few and my curiosity will probably have me pulling the motor tonight and torn apart tomor, maybe. And then build an engine mount. So many new things to get my hands into, i cant wait
Sorry to hear it.
But 200k and multiple years of track use, it was wrung pretty good for 20 year old engine.
Just curious when you installed the engine did you put a X51 style oil baffle in?
Tarret offers them for stock sump. No affiliation, just what I used.
Were you on street tires or track tires?
As others have said, long RH turns can play havoc, and the carousel, a dropping 180 degree righthander will test it.
It seems when there a lot of Gs (track tires & Experienced driver) even with preventative action, things can go bad, with the exception of complete dry sump system.
Good luck with rebuilding and hope to see you sometime at WGI.
Ever have time, we are right off exit 66 I-86 (about an hour before you arrive at the track)
Stop and say hello, always great meeting RL folks.
Deep sumps and baffles may help people sleep at night and work for people putting around... they do not resolve the problem for anyone that is driving the car on track to its capabilities.
This is not opinion, it’s fact based in data.
If you drive an M96 on track, You will have pressure instability... I have not seen any data that anyone’s parts or rebuilt engines change that with the single exception of the CTS dry sump which is not commercially available.
My money on best resolution is oil cooling... which I wonder... would an effective cooling kit make deep sumps and there clearance issues obsolete...
You live with it and hope for the best or you change platforms / engine.
I was running dt40 and it had about 600 miles and 3 de days on it. Watkins is a fast track so 7k was hit a few times going around but i never went past.
The motor was a high milage y2k 3.4 that i brought back from the dead. I never really expected that it would survive forever.
Im sure oil temps and/or the weak head caused a catastrphic issue. The motor has always ate oil buy it was running pretty strong until it wasnt.
So i bought the car as a $4500 roller, fixed it for $150 and drove the **** out of it for 3 years. Im really not upset, but thx for the condulances. This just opens up a bunch of oppertunities. The search for a solution is just starting.
Maybe i can intercept that motor going to Hawaii .
Hey man.. sorry to hear about the engine death. Seems like it's that time of year again! Anyway, I hope you'll upload pictures of the post mortem on this engine. Maybe it can be saved!
17431563[/url]]200K on the clock and 7k rpm at the track? Bravo, my hat's off to you! $4500 roller you drove for three years AND tracked, that car owes you not a thing. Here's hoping its repairable, or at least re-engined, and you're back at the track doing 7K rpm again.
Sorry the motor does have a 6 yr old LN imsb. So im not that big of a rebel.
Also there is a full 2qt LN sump kit installed. And i was on street tires.
So another data point. I have been having issues with my coolant hose in the back of the motor pulling off and the resi tank purging during de days. Anyone think its possible the head has been cracked for a while and even with no intermix extream cyljnder pressure from high rpm downshifts may have been presurizing the coolant jacket?
I highly doubt i i am good enough to pull the g's needed to starve the motor. Im pretty sure zbomb is correct kn the hot hot oil and it didnt help. I was planning on doing the 3rd rad and the 997 oil cooler this winter and still will for the new motor.
So im back home and its in the lift. Here is our first clue. I found where the oil is leaving the motor. Aos bollow is blown out. Hope to have the motor out and heads off tomor.
Oh, man, that's lousy!!! I was hoping to meet you at one of the trackdays that were coming up this year...
I think you will be able to handle this, I've seen your work on other threads here.
PS, my money's on oil starvation too.
Im still betting in a cracked head and coolant hydrolocked the cyl. Remember There is no coolant left in the car and with no oil in the uaos i doubt it locked up from oil hydrolock.
Im still betting in a cracked head and coolant hydrolocked the cyl. Remember There is no coolant left in the car and with no oil in the uaos i doubt it locked up from oil hydrolock.
That could be it, too. I had a VR6 blow the head gasket in a spectacular fashion and hydrolock the motor while driving. The front wheels just locked up like jamming on the brakes. Bent the rod, too. That VR6 was probably salvagable, but since they are $300 at any junkyard I just replaced it.
So if you don't find any holes in the block I could be convinced about hydrolocking.
Did you pull the spark plugs & see if the engine turns yet?
05-15-2021, 09:09 AM
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