Rev match scare

kenchan · 11-20-2016, 01:37 PM

Quote:

Originally Posted by Louie cat

I was on my way to work yesterday afternoon ,having a little fun in the Z. Anyway I was doing around 75 and had to slow down for traffic getting on the highway,so I wanted to drop her in 4th to get back up to speed ,I accidentally put it in the 2nd gear hole and it scared the hell out of me so I immediately took it out and put it in 4th. I am not sure but I think it revved to 6k or a little more. I didn't like it at all and it was bugging me all night thinking I hurt something. Got in it this morning to go home all was normal ,but ?I hate the fact it happened.
Anyone else with the manual have this happen? This is what I hate about rev match!

its a good warning not to mechanically put the car into 2nd while going 75mph. cause datz how u destroy ur engine. the rev itself wont hurt it as there is fuel and u got rev limiter.

Nithmo · 11-20-2016, 01:44 PM

Quote:

Originally Posted by kenchan

its a good warning not to mechanically put the car into 2nd while going 75mph. cause datz how u destroy ur engine. the rev itself wont hurt it as there is fuel and u got rev limiter.

What are you talking about? Fuel has nothing to do with it. There are plenty of times there is no fuel being injected- like when downshifting in high rpm and not hitting the throttle. The engine doesn't need to inject fuel because it is moving so fast, it just keeps moving on its own. It's more your rods breaking or your valves staying open and burning out due to the engine spinning faster than it is intended to.

The rev limiter won't save your engine on a downshift either. The synchro rev will push RPM up until redline, but only if the clutch is still pushed in all the way. As soon as you release the clutch, there is nothing the car can do to stop the engine from over revving and destroying itself.

Louie cat · 11-20-2016, 02:42 PM

Quote:

Originally Posted by Nithmo

What are you talking about? Fuel has nothing to do with it. There are plenty of times there is no fuel being injected- like when downshifting in high rpm and not hitting the throttle. The engine doesn't need to inject fuel because it is moving so fast, it just keeps moving on its own. It's more your rods breaking or your valves staying open and burning out due to the engine spinning faster than it is intended to.

The rev limiter won't save your engine on a downshift either. The synchro rev will push RPM up until redline, but only if the clutch is still pushed in all the way. As soon as you release the clutch, there is nothing the car can do to stop the engine from over revving and destroying itself.

I knew that and that is why as soon as I heard it wind up like that I never released the clutch, I put it in 4th right away and continued on. The good thing here is I have an extended mechanical warranty until 2019 and 76,000 miles, I currently have 48k on her right now. I still dont want anything to happen though.

kenchan · 11-21-2016, 03:40 AM

Quote:

Originally Posted by Nithmo

What are you talking about? Fuel has nothing to do with it. There are plenty of times there is no fuel being injected- like when downshifting in high rpm and not hitting the throttle. The engine doesn't need to inject fuel because it is moving so fast, it just keeps moving on its own. It's more your rods breaking or your valves staying open and burning out due to the engine spinning faster than it is intended to.

The rev limiter won't save your engine on a downshift either. The synchro rev will push RPM up until redline, but only if the clutch is still pushed in all the way. As soon as you release the clutch, there is nothing the car can do to stop the engine from over revving and destroying itself.

do urself a favor and re-read da post.

Nithmo · 11-23-2016, 11:35 AM

Quote:

Originally Posted by kenchan

do urself a favor and re-read da post.

I did, and I still think you're incredibly wrong

onzedge · 11-20-2016, 07:06 PM

Quote:

Originally Posted by kenchan

its a good warning not to mechanically put the car into 2nd while going 75mph. cause datz how u destroy ur engine. the rev itself wont hurt it as there is fuel and u got rev limiter.

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