friends car survives a mis-shift

[Raymund]

http://www.civicperformance.com/vids/MOV00016.MPG

the footage is 15 sec. long taken by myself. its a 2k civic Si driven by a friend. The driver redlined 3rd and shoved it back to 2nd. It amazes me the engine survived after 13k so rpm. His shift point was at 8800rpm at the time due to a ctr ECU. He was able to drive his car afterwards. Next day we took a compression test and it was within specs. We followed with a leak-down test and it too was with in specs. We just down know how it survived!? We know there was metal colision and valve float as heard from the audio. The engine has never been opened or modified internally. We also have dyno figures before and after the mis-shift. The car is putting out more hp than before!

[Keyshawn]

Despite what all the Honda haters like to believe, the B16A is a sturdy little engine.

[gts24]

very strong motor. I can attest to this.... friend has one and the bastard "hydrolocked" it ... kinda... whoops just keeps going. mf's

[Raymund]

We are still baffled how the engine survived. We have to theories.

1: the piston could have pushed the vavle straight close. After giving it a long thought, This would only be possible only if the vavles were lined up straight with the piston (vertical)

2: This is kind of a long shot theory but it sounds most promising. It might be possible that once the engine reaches a certain over-rev limit the v-tec locking pin disengages allowing the small cam profile to take over the big cams. I'm not sure if there is zero vavle/piston collision with the small cams but that maybe the reason the engine survived.

[revelation2k]

damn...glad i also have a 2k Si in the garage:)

[revelation2k]

you can actually see the needle almost go around where it begins at 0 rpm

[Endless]

I used to have a 93 prelude and I misshift once too....redline at third and drop into second by mistake, I was scared to death too when the revs go wild, but it turns out noting happen to my car either...

[OfficeMonkey]

My friend has a GSR and he did a 5th to 2nd, don't ask me I don't know how he did it either. Anyway the revs were around 9500 indicated on the tach, he just took it out of gear and revved it a few times seemed okay and we took off, the car still runs great to this day. My Celica was another story...

[t2000gts]

my 2ZZ survived a hydrolock as well. but that's cool as hell for that Si driver. just hope he doesn't make it a habit :chuckles: