Hi everybody,
I'm rebuilding a 1293 genuine cooper "s" engine which will be subjected to a certain amount of "abuse".Not wanting it to self destruct,has anybody got suggestions of a possible rev limiter?.
Thanks all,
deiseman.
rev limiter
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Ronnie
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Re: rev limiter
As simple as this type of rotor arm https://www.ebay.co.uk/p/2129666186 and you can modify the weight yourself if required.
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InnoCooperExport
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Re: rev limiter
I think you can set a rev limit with some electronic ignitions like 123 or CSI as well.
Of course I know what a dipstick is, you get called something often enough you look it up!
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LarryLebel
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Peter Laidler
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Desmodromic
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Re: rev limiter
https://www.demon-tweeks.com/performanc ... -limiters/
I always used to use a Micro Dynamics limiter on my race cars. The exact model I used is not listed above, but there are many alternatives that look like they'd do the job.
I always used to use a Micro Dynamics limiter on my race cars. The exact model I used is not listed above, but there are many alternatives that look like they'd do the job.
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Oneball
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Re: rev limiter
Did used to think along those lines but then found 10,000rpm comes up pretty quickly when you’re airborne, I’ve since fitted an Omex Clubman revlimiterLarryLebel wrote: ↑Fri Oct 15, 2021 6:33 pm How about a tach and lift off when it hits the red line.
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Dr S
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Re: rev limiter
Weaker valve springs? Stay running on points?
I've got a 69 Mini with a 1046, Cooper Head and a four on the floor.
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Allen Brzeczek
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Re: rev limiter
I would agree with the sentiment as already expressed using the rev counter or even your ear to change gear or lift off.
A genuine S engine if properly especially with the benefit of balancing and lightening is built for a bit of abuse. I have a tuned S motor which proved very free revving but was a bit oily from the top end. During a head rebuild last winter I replaced the valve springs these are clearly not the same spec as previous as I have lost approx 1000 revs. Not a problem most of the time but there are occasions when I would dearly love to have that extra to hand or foot.
A genuine S engine if properly especially with the benefit of balancing and lightening is built for a bit of abuse. I have a tuned S motor which proved very free revving but was a bit oily from the top end. During a head rebuild last winter I replaced the valve springs these are clearly not the same spec as previous as I have lost approx 1000 revs. Not a problem most of the time but there are occasions when I would dearly love to have that extra to hand or foot.
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whistler
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Re: rev limiter
I believe they Lotus Cortina rally cars used one like this back in the 60's.Ronnie wrote: ↑Fri Oct 15, 2021 10:17 am As simple as this type of rotor arm https://www.ebay.co.uk/p/2129666186 and you can modify the weight yourself if required.
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Hipwell
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Re: rev limiter
Just remember the rev limiter doesn’t safe the engine from over excited down shifts, no matter how many people tell you otherwise.