Bike engined car rev limiter

[metro1]

Hi there guys I am looking to replace the omex rev limmiter on my global gt with one of those two stage dynatech rev limiters. The car is fitted with a Yamaha 4xv engine on carbs. I have no faith in the omex unit that’s on the car and I am looking for opinions in the dynatech one or any suggestions as to a reasonably priced alternative.This is the one I am currently considering

http://www.bigccracing.com/shop/product.asp?idprod...

any help or oppinions are greatly apreciated

[stevieturbo]

£200 for a rev limiter ? Crikey.

What's wrong with the Omex ?

And What sort of ignition system does the engine use ?

[jimbob82]

stevieturbo said:

And What sort of ignition system does the engine use ?

stock system is CDI but it could have been changed.

[metro1]

the car had one fitted but it doesnt work, found that out last weekend when the engine let go.so id rather try something else.As far as i am aware its got the stock ignition at the moment although that will probally change when i put a built engine in next season

[metro1]

found out that its not compataible with the standard ignition so any other suggestions

[stevieturbo]

And what is the standard ignition ?

[metro1]

its a capacitor discharge ignition system or so i have been told. i have looked at the omex units but deemon tweeks reckon there not compataible, nor are the micro dynamics ones

[stevieturbo]

But what triggering system ? how many coils ? Is there a dizzy ? etc etc

[metro1]

twin coil no dizzy not sure on the trigger want a rev limit of about 10500rpm

Edited by metro1 on Sunday 9th June 21:11

[Turn7]

There should be a limiter built into the standard ecu?

Dyna stuff is very good, used it on my drag bikes.

[metro1]

i dont think theres much of the standard loom left it looks like it was wired by an italian on crack

[Turn7]

If its running the Yam control box, the limiter will be built into that.

[metro1]

think i saw that under one of the pannels but im not certain i will have a better look when i get chance to get some work done on it.this may be a stupid question but please bear with me as i know nothing about carbs or bike engines but what does that control box manage exactly just the igniyion timing or more? if i have a rev limiter then thats a bonus as i dont think i will need to raise the rev limit over stock when i finally get the big spec engine in.still i will have to rewire the car either way as i have had a few other electrical problems and the loom isn't brilliant

Edited by metro1 on Sunday 9th June 22:39

[Krikkit]

If it's on carbs it will just control the ignition, hence it should have a good rev limiter in it already if it's still fitted. Otherwise I'd be tempted to get it mapped to your specifications rather than spunking loads of money on a 3rd party limiter.

[Turn7]

^^what he said.

BTW, that two stage limiter os for drag racing, you only need a single stage really.

http://www.orientexpress.com/p-13790-dynatek-dyna-...

[metro1]

thats the main use for the car that and verry light track day action

[Turn7]

In that case, fill yer boots!

I think in all honesty though, if you want to do regular strip work, I would be looking at a slipper or lock up clutch - could save another motor and might make things a bit softer for the motor on launch too.

[metro1]

the interim motor has a barnett racing clutch but i will look into the slipper for the new engine build still trying to figure out wether to turbo or stay N/A

[Turn7]

Not many people put blowers on the R1s. Its been done, but for ultimate power it would have to be a Superstreet 'Busa set up - thick end of £15k ish minimum I reckon.

[metro1]

i can get about 270- 300hp for around 4500 grand and the next rebuild would be less but its working out a compramised set up that wont grenade itself after a few runs that would deliver my targets.As much as i would like to fit a hayabusa it isn't economicaly viable