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TR parts and Triumph parts, TR bits, Triumph Car Spares and accessories are available for TR2, TR3, TR3A, TR4, TR4A, TR5, TR6, TR7, TR8, Spitfire and Stag and other TR models are available from British car spares and parts company LBCarCo.

Triumph TR6 - Supercharged TR6

Anyone out there got a blown TR6? Would like to exchange information on blower boost , ignition timing, cam profile, compression ratio etc. I've used a Wade blower - from a 1950s Commer diesel engine, a 'period' modification - and a US-spec. cylinder head. Would like to compare this with the Eaton blower conversion now available in USA. Peter Cobbold(Chester , UK).
Peter Cobbold pcobbold@email.msn.com

I am just now researching supercharging my TR6. See the article on Eaton application in British car Mag #70 Dec97/Jan 98. Also try Paradise Wheels rebuilt Paxton's at 619-562-2598. What boost do you run?
Mark mjwdmjse@aol.com

Boost is 1-2psi at 1500rpm ,6psi at 2500 and 9psi at 5000.
Falloff in boost at 5000 is caused by restricted outlet port on blower- will have to sacrifice easy access to plugs to correct this. Head is 8.5 CR- USA specification , the UK heads at 9.5 will give detonation. Ignition advance retards at 6psi boost from 38 BTDC to 24BTDC using a pressure sensing switch and a rotary solenoid to push distributor moving-plate in retard direction about 3mm. I,m going to have problems with fuel octane rating as leaded petrol is banned from end of year. Peter Cobbold
pcobbold@email.msn.com

Hi,
I've seen a "mad max" TR6 with a supercharger, why don't you go to www.narinc.com ?
Good luck.
Arnaud.
abrucy@wstore.com

I have the Eaton blower on my six. What would you like to know?
jjburlein@ibm.net

Is your Eaton blower conversion from Vintage Induction Systems, NH ? I'd be interested to compare:
compression ratio; max boost pressure; ignition timing curve( boost retard too);what you do to get round the fuel octane problem?
I run 8.5 C/R; max boost at present 9psi (but soon to go to 12 once air filter enlarged); timing(crank) static 18 BTDC rising to 38 at 2400rpm, then boost retard to 24 at 6psi ; max pump fuel octane in UK is now 97 , but adding manganese based lead sustitute can give about 99. I am contemplating fitting methanol injection , activated at about 8psi.
Peter Cobbold pcobbold@email.msn.com

This thread was discussed between 15/05/1999 and 05/02/2000

Triumph TR6 index

This thread is from the archive. The Live Triumph TR6 BBS is active now.