[Fot] TR6 Manifold

[van.mulders.marcel at telenet.be]

I've this very same manifold on my race TR6 that I bought recently from a friend. It has 45 Weber DCOE's on it and I closed off the balance pipes because I thought it is running better in that way, but now I think it is is any better to close this balance pipes. It is probably better to to have open balance pipes, especially for idle and low rev's. 
40 DCOE can be very well tuned for a street car, even with standard or fast road cam, but be prepared for some (engine) dyno time : finding out the right venturi's, jets...is not easy. Tuning Webers for a street car is more complicated for a street car than for a race car, but on the other side : Webers stay tuned once you get it right. I once had a road TR6 with overdrive, a fast road cam and HS6 SU's : that was a joy to drive, in town and on highways. I think it had some125 Bhp. 
Marcel 

Van: "fot" <fot at autox.team.net> 
Aan: "fot" <fot at autox.team.net> 
Verzonden: Vrijdag 28 december 2018 03:02:59 
Onderwerp: [Fot] TR6 Manifold 

I recently bought Craig Wensley’s nicely prepped street TR6. It came with an uninstalled set of Weber 40DCOEs and a Cannon manifold - photo attached. I have Triumphtune manifolds on my GT6, which are stepped and don’t have the inter-connecting “balancing” tube that the Cannon does. I’m curious about the purpose of this and whether it is beneficial or detrimental. 

Is this primarily to smooth out the idle? 

And yes, I know that it will be over-carbureted for the street . . . also looking for recommendations for a good hot street cam. 









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