12 replies to this topic

[HUBBA.HUBBA]

Has anyone got one. Strong? Interested in opinions. Do they fit under standard timing cover (without a breather)
Cheers

[tiger99]

Alloy timing gears? Only suitable for applications where a very short life is acceptable, such as racing. They can not improve performance in any way whatsoever, so why waste money?

[Cooperman]

Just what I was thinking. How would alloy timing chain sprockets be an advantage? If it's rotating mass that's being reduced it would be better to lighten the flywheel a bit more.
Steel timing chain on high-revving alloy sprockets doesn't sound a good match.

[HUBBA.HUBBA]

How about a steel lightweight non adjustable duplex one then. Just thinking of upgrading whilst i can.

Edited by HUBBA.HUBBA, 04 November 2012 - 06:42 PM.

[Tupers]

Generally these are designed for use by people trying to get every last ounce of performance from race engines.

Not something I'd fit to a road car or a weekend warrior.

[HUBBA.HUBBA]

Also do you think a Duplex Vernier Timing Gear & Chain Set be ok on a super chrged set up?

[HUBBA.HUBBA]

Generally these are designed for use by people trying to get every last ounce of performance from race engines.

Not something I'd fit to a road car or a weekend warrior.

Are you talking about the alloy one or the lightened steel?

[Artful Dodger]

Proper cooper S set or a good condition set of 1300 duplex sintered gears, good quality chain (available from MED) and you are sorted!

No need for crazy expensive super lightweight sets, an adjustable vener set would be good for racing but apart from that I wouldn't use it for a road car

[mike.]

I have a kent cams vernier adjustable set on mine which is alloy but with steel teeth. Fine for road use and easy to adjust.

An all alloy set with a steel chain can't last too long I wouldn't think

[HUBBA.HUBBA]

I have a kent cams vernier adjustable set on mine which is alloy but with steel teeth. Fine for road use and easy to

How about for sprint use? Is that kent one the same as the one on the minisport site

[Artful Dodger]

a kent vernier adjustable set would be good for sprint use, very easy to get the engine accuratly timed in and yes, its the kent one on minisport site.

BUT, if it is for a race application then, unless the kent kit already comes with one, get an IWIS duplex chain. you can get it from MED and its the only one i would use for a race engine

[mike.]

I have a kent cams vernier adjustable set on mine which is alloy but with steel teeth. Fine for road use and easy to

How about for sprint use? Is that kent one the same as the one on the minisport site

Would be great for sprint use i'd say. As its vernier its really easy to time in accurately.

Just looked on minisports site and yes thats the one. Although I don't remember paying more than £90 for mine so it may be worth shopping around a bit first or maybe enquire direct with kent cams. It was about 3 years ago when I bought mine.

[Cooperman]

Vernier adjustable sprocket is intended for competition engines which come to pieces often and have replacement partss fitted which will affect the accuracy of the timing due to having different manufacturing tolerances. For a road engine a good quality non-adjustable timing sprocket set is fine and can be accurately timed-in using an offset woodruff key for a fraction of the cost of a vernier sprocket.
All the fine adjustment does, whether by vernier sprocket or offset key is to remove the manufacturing tolerance build-up and enable the cam timing to be set to within 1 degree. Without such a setting the cam timing can be quite a few degrees out which will cost a bhp or three.