TDC CLOSE RATIO BOX, ratios?

Does anyone know what the ratios are on a genuine tdc box(ren 5 T2) what sort of top speed? suppose it will be a long 1st with top acting as a sort of overdrive

Cheers
Steve

[phildini]

Maxi Man where are you?

Kevin @ GTO will know

isnt it about 95mph they are geared to. ratios will dig out the information somewhere i have it

isnt it about 95mph they are geared to. ratios will dig out the information somewhere i have it

Really appreciated, i was told around 120mph

Steve
Talk to Kevin, he was considering getting quaife to make up a qear set as per the TDC.

Think though that the top speed will remain the same as a normal 369 box, as I understood the change for the TDC box was in the 1st and 2nd cluster only.

The TDC box also may have had a C&P that was different from the norm (3.88-1), and in probability was a 4.11-1, this change would obviously lower your top speed.

Cheers
Mark

something i found

largest possible crownwheel and pinion 9x35 (3.88:1)
options 8x35 (4.37:1) 9x31 (3.44:1)


gear ratios
1st 3.250;1
2nd 2.235:1
3rd 1.619:1
4th 1.250:1
5th 1.035:1

maximum speed at 7000 rpm in 5th gear
with 4.37:1 axle 110.6mph
with 3.88:1 axle 124.5mph

just out of intrest got some genuine magnesium tdc speedlines with reasonable tyres on em genuine not compomotive copies should you wish to spend lots of money

something i found

largest possible crownwheel and pinion 9x35 (3.88:1)
options 8x35 (4.37:1) 9x31 (3.44:1)


gear ratios
1st 3.250;1
2nd 2.235:1
3rd 1.619:1
4th 1.250:1
5th 1.035:1

maximum speed at 7000 rpm in 5th gear
with 4.37:1 axle 110.6mph
with 3.88:1 axle 124.5mph

Thanks for the info. not as bad as i thought re; top speeds, suppose 7000rpm isnt overdoing it with a 1600??

Do these boxes go for lots of money? just cant help thinking it would be overkill maybe on a road car???and to my pocket

just out of intrest got some genuine magnesium tdc speedlines with reasonable tyres on em genuine not compomotive copies should you wish to spend lots of money

Would have been nice if i hadnt have already bought the compomotives last year

The deals done A TDC box going in. 3.88.1 crownwheel, so it looks like you lads with the GTA's will have to wait until 120 to get by me

Dont know whos me or our residents Anyone want to buy a nice RX7