Ive seen Iris are chain manufacturing types mainly in the motorcross bike world but Ive got one on my "new" sprint project. Are they any good or should I treat it as I would a rolon tensioner?
Cheers
Tony
IRIS Timing chains?
IRIS Timing chains?
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- trackerjack
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Re: IRIS Timing chains?
I thought you wrote ISIS chains
ISIS chains don't like women and keep killing the engine and anything around them.
IRIS chains are probably good though I have no knowledge of them.

IRIS chains are probably good though I have no knowledge of them.
track action maniac.
The lunatic is out................heres Jonny!
The lunatic is out................heres Jonny!
Re: IRIS Timing chains?
Yes it does look wrong in print doesnt it?
Off topic Jon , ive just bought a set of early TJ brackets from here with the letter you sent out in 2004! Nice milling on the brackets . This set up was to use sierra discs too. Why the change to Golf discs?
Tony
Off topic Jon , ive just bought a set of early TJ brackets from here with the letter you sent out in 2004! Nice milling on the brackets . This set up was to use sierra discs too. Why the change to Golf discs?
Tony
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Re: IRIS Timing chains?
VW discs were BK's discovery and it meant you no longer had to machine the hub, so converting back to standard was childs play.tony g wrote:Yes it does look wrong in print doesnt it?
Off topic Jon , ive just bought a set of early TJ brackets from here with the letter you sent out in 2004! Nice milling on the brackets . This set up was to use sierra discs too. Why the change to Golf discs?
Tony
VW discs merely need boring out to 66.5 and holes drilling to match the Triumph hub, simples

If you have not got the hubs with what you bought and insist on staying with Sierra discs you will have to machine the diameter to 70.2 and the flange to 17.5 thick. I would VW em.
Good luck
track action maniac.
The lunatic is out................heres Jonny!
The lunatic is out................heres Jonny!
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Re: IRIS Timing chains?
I have a pair of Jons VW discs, 239mm drilled and machined, ready to use with your TJ brackets. They are surplus as I'm going even bigger for my Sprint. Make me an offer!
Steve
Steve
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.
- trackerjack
- Guest contributor
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Re: IRIS Timing chains?
Forums are wonderful places to sort out things 

track action maniac.
The lunatic is out................heres Jonny!
The lunatic is out................heres Jonny!