Board logo

Height of RV8 and power rating of triumph axle
speedyxjs - 3/2/11 at 10:12 AM

As title really, does anyone know the height of the RV8 and how much power the rear axle of late 70's triumph's can handle?

scudderfish - 3/2/11 at 10:36 AM

From www.boostperformance.co.uk

The Corvette LS1 engine measures approximately 25.25" long (Rover V8 is 27.5" ), LS1 overall height is 24-25" (Rover V8 is 25.5" plus the carb and air filter or efi plenum, 29-30" or more), LS1 width across the cylinder heads is 20.5" (Rover V8 is 20" ). With the T56 6 speed gearbox fitted the LS1 is some 3" shorter than a Rover V8 with a standard 5 speed gearbox. If you wish to purchase a custom hand built, fully blueprinted engine to any specification feel free to call me. We also overhaul and rebuild standard engines with a few miles on them useing approved GM tooling.

scudderfish - 3/2/11 at 10:37 AM

No idea about the axle, I've got one from a V6 Capri on mine.

v8kid - 3/2/11 at 11:02 AM

Rear axle of TR7 variety is plenty strong enough - not sure if they were used on other triumphs though.

speedyxjs - 3/2/11 at 11:16 AM

quote:
Originally posted by v8kid
Rear axle of TR7 variety is plenty strong enough - not sure if they were used on other triumphs though.


Thats good. It was the TR7 one i was thinking about. I read that they were all the same in the late 70' at least.

interestedparty - 3/2/11 at 12:11 PM

quote:
Originally posted by speedyxjs
quote:
Originally posted by v8kid
Rear axle of TR7 variety is plenty strong enough - not sure if they were used on other triumphs though.


Thats good. It was the TR7 one i was thinking about. I read that they were all the same in the late 70' at least.



Most Triumphs (including T$4A, Tr5 and TR6) of that era had independant rears, therefore a different diff.

TR7 live axle plenty strong enough for tuned V8.


Don't tell me, let me guess, you are going to build a car based on a 2ltr TR7, and are going to change the engine at the same time.

r1_pete - 3/2/11 at 12:24 PM

quote:
Originally posted by v8kid
Rear axle of TR7 variety is plenty strong enough - not sure if they were used on other triumphs though.


I seem to remember the TR7 axle is the same as the Rover SD1 axle, so pleanty strong enough.

A good few years ago I did some research on building a TR8, I think the most difficult bit to obtain would have been the 5speed - V8 bellhousing, TR7 gearbox shares the rest of its castings with the SD1....

speedyxjs - 3/2/11 at 12:31 PM

quote:
Originally posted by interestedparty
Don't tell me, let me guess, you are going to build a car based on a 2ltr TR7, and are going to change the engine at the same time.


Maaaaybeeeee

Iv seen a really cheap TR7 convertable which needs a bit of welding but the bodywork is mint (ideal for me 'cos i dont do bodywork)!

I was thinking i might use it as is for the summer then drop a Jag V8 or maybe V6 twinturbo diesel in over the winter. I wanted to know the size of the RV8 as that was fitted to the TR7 (TR8) so i can get the size of the Jag engines and find out whether it will fit