So i raced this Cobra last night a dead stop lined up from a 0-110 did a pratice run. Then i lined up to race him. We went for it until about 3rd gear my car started acting up i didnt hit the rev limiter and i was shifting at about 6800rpms. well when i went to 4th and let off. my car just died.... and started makin a horrible knock/tick noise.

So i poped the hood. and noticed there was smoke coming out of my Throttle body (becuase i have a clear lid) and i took off my lid and noticed it was oil burnin. and there was oil sittin in the t/b. So i get the car towed to my house. Pull the valve covers, pull the plugs. etc. and nothing. everything was as should be. of course my plugs were a lil oilly. but.. Can someone please help me diagnos my problem before i pull the heads. I surely hope its not my bottom end. i was not leaking any oil or anything.....

now when i got home and tried to start it to pull in the drive way. the starter was just grinding...... real werid b/c i tried to start my car after i raced and it ran.. just knocked bad. DID I break my STARTER TO>??!?!
I did my cam swap about 2 months ago and did the dual springs. seats. retainers etc. etc.


Any input or advice would be great...Thanks

 

damn dude, you've got a damn dark cloud hangin over your head or something, always somethin bad happenin to ya. best of luck though.

 

Knocks are usually in the bottom end man. That sucks. Ticks are usually in the valvetrain. So which one is it more? knock or tick?

 

you shift at 6800rpms??? Is your motor built or is it stock with aftermaket valvetrain(springs,pushrods,rockers)?

 

sorry bro. ive got a bad feelin about this...

but you shift @ 6800rpm?? who tuned your car?

 

 

6800 seems kind of high for a stock motor but what do I know.. When you did the cam swap did you replace the oil pump too?

Did you check the oil? Was it full before you went out racing?

 

jesus christ guys i have a trex with new springs seats retainers pr. etc.
shaner tuned it..

 

as hard as you drive your car you cant be surprised that you killed it...........These motors are badass but when you race every single day and drive it like you stole it something is eventually gonna give up. But on a better note i hope you get it figured out and it isnt something too serious! Good luck!

my buddy has a ford lightning that had the same problems you are talking about, ran rough and blew out smoke at the end of the quarter mile pass. Then he started it back up and it ran rough, then tried to start it one more time and BOOM! He ended up destroying 2 pistons, rods, and cracked the block.

Brent

 

I hope you didnt chew up a lifter....

 

Well heres a over the internet diagnosis....You spun a rod bearing, melted a piston due to a tuner who doesnt use a wideband to tune instead guesses off of your stock sensors which are narrow band, or dropped a valve and broke a piston or 3....Any holes in the side of the block? Starter ear is also broke off the side of the block because you tried to start it and the rotating assembly is locked up.

 

no there is no hole in the side of the block. and no oil is leaking.
should i go ahead and pull the heads?

 

Pull the valve covers if you want. Pull the oil filter off and use a filter cutter to open it up. You'll find your answer there as to what is wrong with it. If there is metal there....then BAM! Rebuild.

 

i had heads/cam full bolt on ls1 for daily beater and took it to the track once/twice a week and guy name HUTTO drove/test it @ the track/streets and NEVER BROKE~!! or had ANY PROBLEMS. esp when the motor was already tired and had 96000 MILES ON IT~!!

GOOD tuner/properly setup ls1 will never break unless you ran low on OIL

 

time for a new engine. no **** man, SOMETHING is always going on with you lol. pull it out, tear it apart and figure it out. start looking for a new engine and look at smaller cams next time...

 

PM sent.

 

pm replied

 

Damn Pat. You killing everything on the road. Well you may of bent a valve. I did this way back when and I had a bad tick and my car died also. Did you miss a shift? Well I have a great pair of ported heads and even a motor if you need it. Pm me for more details if you want it.
Good Luck

 

i understand what you are saying........i guess it could be something with the tune. I have a mid-sized cam/bolt-ons and my rev limiter is set at 6900rpm. I shift at 6700rpm at the track and my car is at 99,000 miles! But i have learned to take it easy now especially since i'm in school. You dont ALWAYS have to drive it like you stole it.

Brent

 

im hoping to god i bent a valve jordan. i will def. let you know either way.... i have a used set of 241s that i can get ahold of from trev_ss i didnt miss a shift or hit the rev limiter. how would i tell if i bent a valve without pulling the motor.?

i have the valve covers off and everything looks fine now...