Camshaft - can anyone help identify

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Paul Roberts

Camshaft - can anyone help identify

#1 Post by Paul Roberts »

Wondering if anyone can help identify my Sprint cam. I purchased it from Triumphtune (Moss) about 15 years ago. It would be a fast road cam designed to work well with the SUs and the title "Sprint" kinda rings a bell (but I could be making that up!!) Anyone got the details on what Triumphtune offered - from that I can probably work it out.

Thanks

Paul Roberts
Western Australia
Sprint36

#2 Post by Sprint36 »

Any marks on the end?

If I remember right, lift is something like this:

Standard: 360 thou
Road: 380
Fast Road: 396
Sprint: 408

More info on timing in the Triumphtune manual, but mine's at home.

David
Paul Roberts

Camshaft - can anyone help identify

#3 Post by Paul Roberts »

It's actually in the car and going. So there was a cam called "Sprint"?
bodgerben

#4 Post by bodgerben »

These details were up on TriumphOwners a while back..

The Sprint profile is similar to a STR91, so will work well with HS6's with nice rich needels, but may be better at the top end with HS8's or 45's.

The 'road' cam has a nicer idle and the 'fast road' was what TT used to say was the ultimate cam for the standard SU's - which was rubbish coz they just wanted to sell a set of 45's to anyone buying a 'Sprint' cam.

Manufacturer Timing Valve Lift Duration Power band Power Application
B.L. 312132 18/58-58/18 0.360" 256 ° 1500-5000 127 Standard

TT 10104 34/58-58/34 0.380" 272 ° 2000-6000 152 Road
TT 10105 34/66-66/34 0.392" 280 ° 2250-6250 168 Fast Road
TT 10106 40/72-72/40 0.408" 292 ° 2750-7000 185 Sprint

STR 0091 40/73-68/32 0.383" 286 ° 3000-7000 178 Fast Road/Rally Gr.2
STR 0139 68/92-76/56 0.435" 324 ° 3800-7500+ 220 Rally/Race Gr.1

Kent DMS1 34/70-70/34 0.363" 284 ° 2000-6500 Fast Road
Kent DMS2 46/78-78/46 0.376" 304 ° 2500-7000 Fast Road/Rally

HOLBAY Tornado LK1 34/74-74/34 0.389" 288 ° 2000-6500 + 10% Fast Road
Paul Roberts

camshaft - can anyone help identify

#5 Post by Paul Roberts »

I think you have just answered my question. Thanks. It's got to either be the fast road or the Sprint. When we retorque the head after a bit more running in, I'll check to see if the numbers are there. Appreciate the info. Gotta say yet again that this forum is just fantastic.

Cheers

Paul Roberts
Western Australia
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