TKO 600 or CTS Quaife T5 gearbox

[stainless_steve]

Opinions welcome

[2Munkys]

http://www.pistonheads.com/gassing/topic.asp?t=704...

[jellison]

For a straight bolt in job done TKO is the way to go - conversion will be heavier (and it does depend what you are bolting it up to and why considering this choice). Yep we all know t5's are great shifting boxes, but not ideal much over 300ft/lbs , hence the CTS Quiafe angle.

If you have the funds tim and inclination CTS Quiafe would be best from feel (TKO is a little heavier in weight and "Feel") but it generally suits the massive power engins it is bolted up to. I have not done this isn a while and going back 4+ years a TKO with all the bits (bell housing, adaptor plate, tilton release etc was over 2.5k. I suppose a good t5 woul go for about 500 quid and then you have to add all the CTS bit and the labour to build it up, but I'm sure it will be in the region of 1500 quid maybe alot more then are you going to run the std old fashion slave on the t5 or go centre release as is best in the tko (but not essential - just seemed a no brainer for me).

So if a balls out race car I'd go CTS, but anything less or road or some trackday'ing I'd go TKO.

Hope that helps

[stainless_steve]

lads
car is being built to cope with 550bhp and sticky tyres,i'm leaning towards the CTS T5 at the moment

[jellison]

Good stuff, have you priced up the CTS internals and the fitting there of?

Weight on the Tremec site BTW.

[stainless_steve]

Some info here

http://www.gearboxman.co.uk/infot5.html

guessing £2k +

[jellison]

550bhp LS in a 2500M should be wicked (scary - Very).

Brakes will need an upgrade fron the st TR6 jobs (my second car at 22 (a long time ago!! Sadly) was a 3000M. Maybe some disc rears too and put the 4 dampers spring on the back (all the brackets are there).

Sound similar to my next racer (power (maybe - fingers X'd)!), weighing a bit less, with 4.5" shorter wheelbase 85.5"! and have to stick with the drum rears (not on the front! though).

Good luck.

[stainless_steve]

jellison said:

put the 4 dampers spring on the back (all the brackets are there).

Noticed the brackets,did TVR ever use them?

It's alot of work but everything will be up to the power when finished.

These rear hubs look interesting

http://www.goodparts.com/shop/index.php?productID=...

[jellison]

stainless_steve said:

jellison said:

put the 4 dampers spring on the back (all the brackets are there).

Noticed the brackets,did TVR ever use them?

It's alot of work but everything will be up to the power when finished.

These rear hubs look interesting

http://www.goodparts.com/shop/index.php?productID=...

We looked at that - but are building to fia regs - is your upright steel or alloy?

I have just spent a FORTUNE on my rear hubs for this type of power.

If you need info on this type of thing PM me (been reseaching it for every and having the definitive stuff machine at present - hopefully all done).

The early cars had the two damper and springs on from the factory. Mind does. Thye seemed to drop it post the late sixties Tuscan but still made the chassis with the mountings.

I'd use them if I were you I have more pics on this typr of stuff than you could imagine!

http://www.carolinarodshop.com/current_proj/65_gri...

This is not my car, I might add! 400-5-052 in for a total restoration.

[stainless_steve]

Thanks for the info,will give you a shout after the engine and box are in

[TVR_owner]

stainless_steve said:

Thanks for the info,will give you a shout after the engine and box are in

Steve, the M uprights are ok for most applications (unlike the pre-m ones) very few cars have steel rear uprights.

The hubs are less so. No new ones available to replace the old TR units. Quaife have some on their website that are similar to the goodspeed ones. Should be available in thne coming weeks and should prevent wheels overtaking the rest of the car....

[stainless_steve]

TVR_owner said:

stainless_steve said:

Thanks for the info,will give you a shout after the engine and box are in

Steve, the M uprights are ok for most applications (unlike the pre-m ones) very few cars have steel rear uprights.

The hubs are less so. No new ones available to replace the old TR units. Quaife have some on their website that are similar to the goodspeed ones. Should be available in thne coming weeks and should prevent wheels overtaking the rest of the car....

Thanks John,
Is you racer using the twin shocks or the standard single?

[Slow M]

jellison said:

put the 4 dampers spring on the back (all the brackets are there).

I disagree, that adds to overall weight and unsprung mass without adding any benefits over properly selected springs/shocks.

stainless_steve said:

Noticed the brackets,did TVR ever use them?

Yes, the rear is used as a body mount, the front is the shock mount.

stainless_steve said:

These rear hubs look interesting
http://www.goodparts.com/shop/index.php?productID=...

I'd contact Richard and find out if he's designed for your level of power.

Stainless, any pictures of your progress?

Best of luck.
B.

[Slow M]

TVR_owner said:

The hubs are less so. No new ones available to replace the old TR units. Quaife have some on their website that are similar to the goodspeed ones. Should be available in thne coming weeks and should prevent wheels overtaking the rest of the car....

After a lot of effort spent on re-engineering my hubs/carriers, I'm finally assembling my rear suspension. I'll be a little bummed out if I find out that Quaife's units will be CV and handle lots of power because it'll mean I've wasted a great deal of energy. I'll be happy for all of you guys though!

B.

[TVR_owner]

stainless_steve said:

TVR_owner said:

stainless_steve said:

Thanks for the info,will give you a shout after the engine and box are in

Steve, the M uprights are ok for most applications (unlike the pre-m ones) very few cars have steel rear uprights.

The hubs are less so. No new ones available to replace the old TR units. Quaife have some on their website that are similar to the goodspeed ones. Should be available in thne coming weeks and should prevent wheels overtaking the rest of the car....

Thanks John,
Is you racer using the twin shocks or the standard single?

Steve,
I use single either side.

[jellison]

Been away.

FIA spec hubs for the early Griff run to £2 - 3.5k BTW

All serious early cars us the 4 damper/springs.

[Slow M]

Stainless,
have a look at this one!
http://grassrootsmotorsports.com/reader-rides/1837...
B.

[jellison]

Think I have been in contact with this guy - mega project but not much TVR in there bar the few white panels in that pic - EVERYTHING Else is made from scratch or US Iron

Have pic's of the chassis somewhere.

[Slow M]

I wonder how he's "narrowed (the) C4 suspension?"

[stainless_steve]

Looks an interesting project