Supercharged TR6, Strengthening Diff Mounts and Fitting LSD

[craigcaf]

I finished my TR6 supercharger project in spring. Took the car to my usual rolling road and it made 245bhp vs 144bhp previously on twin SUs on the same dyno - so very happy. Strategy was primarily around high valve lift and modest cam duration, modest CR (9.15:1), together with lots of attention on cooling, head breathing and engine breathing. Went to Revival today and gave the car its first serious long run. Very happy with the performance and showed a clean pair of heels to a few surprised BMWs... :-). Engine stayed nice and cool all day.

Anyhow, I now need to finalise the project with (1) some diff mount strengthening work (before they self destruct with the additional torque) and (2) an LSD.

Does anyone have any recommendations for a specialist for diff mount strengthening in Sussex, Kent or Essex areas? Also any recomendations for what LSD to go for?

[p5000ko]

racetorations, they took my Diff and checked it over before fitting plated LSD with larger rear cover for extra cooling and oil capacity. I have 230bhp and 260lbft torque going through it and sprint it with so far no problems. It is noisy round bends as it winds itself up but that is usual.

[simonjrwinter]

Sounds interesting......Southern Triumph in Bournemouth do a BMW rear axle conversion. Not cheap but the best option for big power outputs.
My V8 powered TR6 is only putting out just over 200 bhp so my strengthened diff mounts should hold (I hope). However, when I ugrade it to a 4.6 or 5.0, I may have to think again!

Simon

[craigcaf]

Been talking to Clive Manvers and am going to go for torque sensing LSD and fully boxed in Diff pin mounts. Should be robust enough.

[Yertis]

craigcaf said:

fully boxed in Diff pin mounts. Should be robust enough.

You'd ideally have that even on a standard TR6 to be honest (maybe not a US one).