Well, that didn't last long - ZR-1 Net Registry Forums

kenthompson · 03-15-2009

Car was back together (and running pretty good too!). Then I went to the track to see what had gotten better.

First run, stone cold tires, spins in first on launch, spins in second, and run a 13.49 @ 106. Hmm, surely there's another 1/2 second in there somewhere. Must launch harder....

Second run, RPM @ 3000, Launch, spin and keeps spinning. Wow, serious mid range torgue here. Ok, I'll put it in second and it'll settle down.... Hmm, second and it's still spinning the tires. Opps, it's all over the track at this point and headed for the wall. Guess I'll have to back out. 16.38 @ 106. Bummer.

Third run, Ok, we're gonna heat the tires a bit here, although it's against my better judgement, cause the GSD3's are just going to swallow water and drip it back on the surface before the launch. Well, first gear got them spining, now I need to put it in second. OPPSSS!!!! Took out the second gear syncro. Hate that when it happens. Ok, guess I needed to rebuild the trans anyway.

Ok, so now today, it's time to go to the local strip club for a car show.

Fresh wax job, clean the windows, polish the wheels, fresh tank of Chevron 91 octane good stuff....

And the freakin motor starts knocking!!!!!

WTF????

#8 spark plug, the electrodes are pushed together on top of the ground electrode. The knock is way more severe with the plugs in, especially when the car is running.

The sound seems to eminate from under the plenum (????), nothing moving under there....

I'm thinking camshaft follower. It's really a very tinny knock. Not deep like you would think a rod would be.

Oh heck, I'm pulling the motor out....

Guess it was fun while it lasted. Another six months won't hurt anything...

03-15-2009	#1
kenthompson Join Date: Jul 2007 Location: Las Vegas Posts: 298	Well, that didn't last long Car was back together (and running pretty good too!). Then I went to the track to see what had gotten better. First run, stone cold tires, spins in first on launch, spins in second, and run a 13.49 @ 106. Hmm, surely there's another 1/2 second in there somewhere. Must launch harder.... Second run, RPM @ 3000, Launch, spin and keeps spinning. Wow, serious mid range torgue here. Ok, I'll put it in second and it'll settle down.... Hmm, second and it's still spinning the tires. Opps, it's all over the track at this point and headed for the wall. Guess I'll have to back out. 16.38 @ 106. Bummer. Third run, Ok, we're gonna heat the tires a bit here, although it's against my better judgement, cause the GSD3's are just going to swallow water and drip it back on the surface before the launch. Well, first gear got them spining, now I need to put it in second. OPPSSS!!!! Took out the second gear syncro. Hate that when it happens. Ok, guess I needed to rebuild the trans anyway. Ok, so now today, it's time to go to the local strip club for a car show. Fresh wax job, clean the windows, polish the wheels, fresh tank of Chevron 91 octane good stuff.... And the freakin motor starts knocking!!!!! WTF???? #8 spark plug, the electrodes are pushed together on top of the ground electrode. The knock is way more severe with the plugs in, especially when the car is running. The sound seems to eminate from under the plenum (????), nothing moving under there.... I'm thinking camshaft follower. It's really a very tinny knock. Not deep like you would think a rod would be. Oh heck, I'm pulling the motor out.... Guess it was fun while it lasted. Another six months won't hurt anything...