Login | Register
SearchMy Stuff
My ProfileMy PreferencesMy Mates RSS Feed
2
Reply to Topic
Author Discussion

roseytvr

Original Poster:

1,193 posts

66 months

[news] 
Friday 9th November 2012 quote quote all
Guys
I have been researching gearboxes for my Griff, in particular what I might need for a 375 bhp motor. The concensous seems to be that i could be getting close to the margins for a standard T5 but obviously a lot will depend on driving style.
I will probably refesh the input shaft bearing but take my chances with my box and if it lets go look at the CTS Quaife option.
The question is are all T5s (Griff/Cerb/Tuscan/T350) all the same or are they spec'd for differnt torques? Am I right in assuming the T5 standard in the 4.5 AJP is generally upto the job in standard form and is this any different to the T5 in my 96 Grif?
Thanks

V8 GRF

6,861 posts

98 months

[news] 
Friday 9th November 2012 quote quote all
All TVR T5 boxes are more or less the same.

If you want to stay with a T5 type then you need to look at a Tremec TKO500/600 which as the numbers suggest are beefier (and heavier as a result) versions that will take the corresponding lbs/ft torque.

Tremec bought the rights to the T5 from BW so it's the same design just beefier

http://www.tremec.com/performance/tko.html

wadsapple

1,920 posts

75 months

[news] 
Friday 9th November 2012 quote quote all
As i am told the lighter T5 came from the Ford Sieera 4x4 and the one we all would like comes from the Ford Mustang.I think i'm right in saying the Mustang box was used in the AJP cars.

Russell Mc

566 posts

39 months

[news] 
Friday 9th November 2012 quote quote all
T5 wasn't fitted to the 4x4 Sierras only the 2wd ones. Mustang box has fewer splines on input shaft and gear lever in different position.

phazed

10,778 posts

92 months

[news] 
Friday 9th November 2012 quote quote all
The Mustang box is larger and heavier iirc.
Advertisement

Russell Mc

566 posts

39 months

[news] 
Friday 9th November 2012 quote quote all
Tail housing could be different lengths especially on some Chevy applications. Different gear ratios but no size or weight difference

PascalBuyens

2,868 posts

170 months

[news] 
Friday 9th November 2012 quote quote all
Walford said:
How many horses is a stock TVR T5 good for
I have read on here that even a realy low tuned Chevy LSx 375bhp will eat it
Standard T5 is rated to 350 lbs ft of torque. And even a tuned S6 can tear it apart...

450Nick

3,673 posts

100 months

[news] 
Friday 9th November 2012 quote quote all
It depends how you drive, I run over 400bhp and even more than that in torque through mine, and its fine. The generally accepted limit is around 450bhp, though you can break one with much less if you enjoy dumping the clutch and aren't very smooth in the gear changes. At 375 it should be fine!

macdeb

5,139 posts

143 months

[news] 
Friday 9th November 2012 quote quote all
yes you can destroy any gearbox if you drive like an idiot. Would still like the definative answer though.

pmessling

1,591 posts

91 months

[news] 
Friday 9th November 2012 quote quote all
i was under the understanding that there was two versions, the standard and world class or something along them lines. and that the cerb had the latter of the two

neal1980

2,227 posts

127 months

[news] 
Friday 9th November 2012 quote quote all
pmessling said:
i was under the understanding that there was two versions, the standard and world class or something along them lines. and that the cerb had the latter of the two
From my understanding all the TVR T5's were WC. They are different from a sierra cosworth one I had one on my garage floor. The TVR ones are American based, (mustang I think rings a bell). I was running 420bhp and 550lbft on R888's and didnt break it...they are strong boxes if respected smile

bionicjim

473 posts

27 months

[news] 
Friday 9th November 2012 quote quote all
I was thinking of converting mine
Into a 6 speed I can't spell the word but the same as a bike

DAVEY DEE

624 posts

42 months

[news] 
Friday 9th November 2012 quote quote all
Tricycle?

phazed

10,778 posts

92 months

[news] 
Saturday 10th November 2012 quote quote all
Kawasaki?

dbv8

6,885 posts

108 months

[news] 
Saturday 10th November 2012 quote quote all
Sturmey Archer?

phazed

10,778 posts

92 months

[news] 
Saturday 10th November 2012 quote quote all
What would this forum be like if we didn't take it all seriously?


Or do you mean a loose woman, (like a bike?)

DAVEY DEE

624 posts

42 months

[news] 
Saturday 10th November 2012 quote quote all
Quad?

bsdnazz

687 posts

141 months

[news] 
Sunday 11th November 2012 quote quote all
Sequential?

Hoover.

5,390 posts

130 months

[news] 
Sunday 11th November 2012 quote quote all
two different gearings available here, 1 for Cosworth & 1 for TVR

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


I'm sure they used to do a 6 gear conversion, but that may have been on the the LT77 box..... can't remember as it was along time ago I was looking into it.


TVR_owner

3,349 posts

79 months

[news] 
Sunday 11th November 2012 quote quote all
Hoover. said:
two different gearings available here, 1 for Cosworth & 1 for TVR

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


I'm sure they used to do a 6 gear conversion, but that may have been on the the LT77 box..... can't remember as it was along time ago I was looking into it.
They did indeed offer a 6 speed T5.

2
Reply to Topic