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Accidently revved ST170 to over 7500rpm

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Old 13-12-2009, 10:41 AM
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CoupeUK
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Default Accidently revved ST170 to over 7500rpm
Hi all, just a quick question...

Was out in the car this morning on a NSL dual carriageway and went to overtake a car, I was in 6th at 70mph. Went to change to 3rd as the road was quiet in front but missed and got 1st, I come off the clutch and saw the rev counter needle touching the stop pin (7500+) the car immediatly slowed down and made a horrible sound. I went back to 5th and carried on, the car sounded fine and performed as usual.

I have since kicked its arse a little and it drives as it did, no effect on the performance and no un-nerving sounds.

Is there any things worth looking out for?
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Old 13-12-2009, 10:42 AM
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If it drives ok dont worry !!!
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Old 13-12-2009, 10:45 AM
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lucky boy
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Old 13-12-2009, 10:46 AM
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lucky as hell i'd say!
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Old 13-12-2009, 10:48 AM
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Must have taken and awful lot of force to get 1st in anyways as it hasn't got the strongest synchro...
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Old 13-12-2009, 10:49 AM
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rich123
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lucky you didnt bend a few valves lol
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Old 13-12-2009, 10:50 AM
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the rev limiter would have stopped you doing too much damage.
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Old 13-12-2009, 10:53 AM
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Originally Posted by Rich_bloor
the rev limiter would have stopped you doing too much damage.

no it wouldn't
Last edited by Spiky; 13-12-2009 at 10:55 AM.
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Old 13-12-2009, 10:54 AM
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PeterRST
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Originally Posted by Spiky
no i wouldn't
Well a rev limiter in form of an exploding clutch maybe...
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Old 13-12-2009, 10:56 AM
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Originally Posted by PeterRST
Well a rev limiter in form of an exploding clutch maybe...

or th engine mounts being ripped out and throwing the engine out the bonnet
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Old 13-12-2009, 11:02 AM
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the syncro and gearbox mounts went all the time on mine as you have to rag the shit out of em to go anywhere
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Old 13-12-2009, 11:05 AM
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Buy a scratch card whilst you've got the luck.
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Old 13-12-2009, 11:11 AM
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CoupeUK
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It actually went quite easily into 1st, I didnt have to slam it in! When I come off the clutch it felt like it was being pulled back and I see the revcounter touching the stop pin.....

The rev limiter must only stop high rpms if accelerating with the throttle I guess lol

Never realised I was that lucky, poor car bless her!
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Old 13-12-2009, 11:15 AM
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Alps Pacino
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i did the same in my integra reved it well passed the 9k limiter, bent few valves but it drove fine jsut wouldnt tick over
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Old 13-12-2009, 11:15 AM
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Originally Posted by CoupeUK
The rev limiter must only stop high rpms if accelerating with the throttle I guess lol
The gearbox is turning the engine in those situations, not the air/fuel bang.
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Old 13-12-2009, 11:20 AM
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So, you were at 70mph in 1st gear for a brief moment... that must be c14,000rpm that the engine has had to deal with? If so, then I reckon all is not going to be well inside that engine!! Trade in time...


Cheers,
Grant
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Old 13-12-2009, 11:25 AM
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Originally Posted by RS Grant
So, you were at 70mph in 1st gear for a brief moment... that must be c14,000rpm that the engine has had to deal with? If so, then I reckon all is not going to be well inside that engine!! Trade in time...


Cheers,
Grant
Still drives lovely! Might have to treat it to a service in the week....
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Old 13-12-2009, 11:26 AM
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Originally Posted by Alps Pacino
i did the same in my integra reved it well passed the 9k limiter, bent few valves but it drove fine jsut wouldnt tick over
This idles fine so I must be very lucky, a testament to Fords!
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Old 13-12-2009, 11:26 AM
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Sod doing that, even by accident

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Old 13-12-2009, 11:28 AM
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Originally Posted by CoupeUK
This idles fine so I must be very lucky, a testament to Fords!
We'll see
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Old 13-12-2009, 11:30 AM
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I did something similar in a courtesy car, it was a 2.0 16v primera, it didnt seem to do anything to it, not the day i had it anyway
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Old 13-12-2009, 11:31 AM
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treat her kindly for the next few months lol!

buy herchocolates etc
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Old 13-12-2009, 11:36 AM
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u complete penis ,how did u manage getin it in first at speed!?
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Old 13-12-2009, 11:38 AM
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CoupeUK
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Originally Posted by Smartdj.
u complete penis ,how did u manage getin it in first at speed!?
I have no idea, went for 3rd and got 1st! As already said, it went straight in with no excess force.
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Old 13-12-2009, 11:42 AM
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I've just done some calculations...

If I'm correct an ST170 doing 70 mph would be revving 12254 rpm in 1st...

Where was that F1 spec thread?
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Old 13-12-2009, 11:44 AM
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look on the bright side!it could of been even worse if you managed to get her into reverse
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Old 13-12-2009, 11:46 AM
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Originally Posted by mechanic28
look on the bright side!it could of been even worse if you managed to get her into reverse
...or driven into a wall.

lol, there are plenty scenarios which would have been worse Doug.


Cheers,
Grant
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Old 13-12-2009, 11:47 AM
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Yeah... or getting overtaken by a Kia Sorento!
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Old 13-12-2009, 11:48 AM
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Im suddenly feeling very lucky! I doubt it was revving that high as I dipped the clutch as soon as I felt it slow down, I suppose 12k is possible if I hadnt!
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Old 13-12-2009, 11:50 AM
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Noooo not the Ssangyong lol
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Old 13-12-2009, 11:51 AM
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Originally Posted by CoupeUK
Noooo not the Ssangyong lol
Oops, yeah, you're right... Ssangyong, not Kia.
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Old 13-12-2009, 11:51 AM
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lucky id get a nice good old service done now mate imo
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Old 13-12-2009, 12:42 PM
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Originally Posted by PeterRST
I've just done some calculations...

If I'm correct an ST170 doing 70 mph would be revving 12254 rpm in 1st...

Where was that F1 spec thread?
thats a good indication of how strong the crank and rods are on a st170 engine,so with the oil pump issues sorted.easy a 9k screamer.
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Old 13-12-2009, 12:42 PM
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Originally Posted by Rich_bloor
the rev limiter would have stopped you doing too much damage.
How will the rev limiter work when the engine is over driven by the road speed???

Should be fine as I used to spin a Pinto motor to 9200 revs with standard internalls
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Old 13-12-2009, 01:47 PM
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Originally Posted by fordpop
Should be fine as I used to spin a Pinto motor to 9200 revs with standard internalls
how is that at all relevant?
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Old 13-12-2009, 02:05 PM
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ROFL at the Pinto comment

I'm not fucking surprised it felt like it was pulling back a bit when you let up the clutch @ 70mph in 1st !
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Old 13-12-2009, 02:12 PM
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lucky bastard lol
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Old 13-12-2009, 02:20 PM
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trade it in for an automatic
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Old 13-12-2009, 03:15 PM
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you lucky hit. I did the same thing in my safe. I went from 5th to 4th and got 2nd. I fookin shat myself. The car was ok.
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Old 13-12-2009, 03:19 PM
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Good Fords eh, people knock them but they keep on suprising us!
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