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Author bouncing off the rev limiter........
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 16:29   View User's Profile U2U Member Reply With Quote
erm..... what other damage apart from internals would occur?

after getting my engine in and running in in for ages, whenever i get the chance to drive it hard...it seems to want to be hitting the limiter evry gear (maybe not 5th)
what am i likely to screw up?
Warren G
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Registered: 14th May 06
Location: Kent
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26th Dec 06 at 18:31   View User's Profile U2U Member Reply With Quote
why do u rev it to the limiter? you not change just before??????

err...will make cam belt jump, valves hit pistons, i think you no the answer
Corsa Phil 666
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Registered: 28th Nov 05
Location: Clacton-on-Sea, Essex
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26th Dec 06 at 18:45   View User's Profile U2U Member Reply With Quote
Well i was like that with my x14xe and that's why i'm having to change the engine as my bottom end sounds like it's full or gravel!!! But that's from revving harder the limiter itself won't damage anything but the high revs will.
Basscrazy
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Registered: 16th Sep 05
Location: If im on here then clearly in front of the pc
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26th Dec 06 at 18:53   View User's Profile U2U Member Reply With Quote
need your limiter raising then
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 19:28   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by warren.g
why do u rev it to the limiter? you not change just before??????

err...will make cam belt jump, valves hit pistons, i think you no the answer


as my peak power seems to come in around 6.5k., and very shortly after the limiter comes in.

ive already got arps' everywhere. sbd rollers, im still using the sprung loaded tensioner tho..
Warren G
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Registered: 14th May 06
Location: Kent
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26th Dec 06 at 19:31   View User's Profile U2U Member Reply With Quote
what other tesioners can you get? il be using standard tenioner, unless theres better ones

6.8krpm is the rev limit, in that cause get the rev limit raised to 7.5/7.8krpm
jr
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Registered: 20th May 02
Location: Kent
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26th Dec 06 at 19:39   View User's Profile U2U Member Reply With Quote
the limiter is there so nothing happens,

but yout peak power with a manztel will be up near that, raised limiter with some decent cams should see some nice gains i would have thought
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 19:51   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by warren.g
what other tesioners can you get? il be using standard tenioner, unless theres better ones

6.8krpm is the rev limit, in that cause get the rev limit raised to 7.5/7.8krpm


in some cases the sprung tensioner is replaced with a solid roller, a shortened belt is then used, and the tension is achieved via the waterpump.

whats the best way of raising the limiter? (by best i mean cheapest) L30 SCT mentioned dastek make a paggyback unit for around £40???
Warren G
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Registered: 14th May 06
Location: Kent
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26th Dec 06 at 20:50   View User's Profile U2U Member Reply With Quote
can do it via obd port - eromp mapping i think its called

do you have a link for these tensioners? what does everyone else use?

[Edited on 26-12-2006 by warren.g]
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 22:00   View User's Profile U2U Member Reply With Quote
theres no need for the solid roller to replace the tensioner........i thinks its mainly used to re-route the belt for an oil pump (dry sumps etc).....

so dastek dont make a piggy back module?
Warren G
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Registered: 14th May 06
Location: Kent
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26th Dec 06 at 22:29   View User's Profile U2U Member Reply With Quote
there has to be a roller im sure - otherwise it would run on the camcover!

is there any need tho, im sure the standard tensioner is up to the job?

not sure about a the piggy back ecu
Dave A
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Registered: 10th Dec 03
Location: County Durham
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26th Dec 06 at 22:55   View User's Profile U2U Member Reply With Quote
standard tensione ris fine unless you go for stiffer valve springs and 8k+ rev limit.

SBD do a fixed tensioner, you adjust cam belt tesion on the waterpump. standard belt cover wont fit if you go with fixed tensioner. the Idea behind it is that with a sprung tensioner and uprated valve springs the tensioner can whip back when you come off the belt and cause the belt to jump. Only ever heared of 1 case of this though on a 1600 with an 11k limit and solid lifters, double valve springs and 300+ degree cams.
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 23:04   View User's Profile U2U Member Reply With Quote
im sure i just said there was no need for it.......
althoug, warren if you want one you may have it...
L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
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26th Dec 06 at 23:16   View User's Profile U2U Member Reply With Quote
dastek do make a module that incrase the rev limiter. it is £45+vat. i am not sure if you have to have the unichip aswell though
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 23:19   View User's Profile U2U Member Reply With Quote
oh i didnt wana get a remap till i got cams in there.....hmm, may have2 wait a whil before i raise the limiter then lol
L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
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26th Dec 06 at 23:31   View User's Profile U2U Member Reply With Quote
your better getting it mapped before raising the rev limit just incase it starts running lean at high rpm.
csweatherston
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Registered: 16th Jan 06
Location: Devon
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26th Dec 06 at 23:38   View User's Profile U2U Member Reply With Quote
lol, my cts is fooked...it never runs lean
L30 SCT
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Registered: 27th Nov 05
Location: aberdeen
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26th Dec 06 at 23:46   View User's Profile U2U Member Reply With Quote
mine is fucked and actually started running lean went it went over 7000rpm even though it was fuelling at 13:1

 
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