Urgent Diff !!! BTR 3.45 or 3.31
Discussion
Sorry about the "urgent" but i need to sort this a.s.a.p. Griff being used as a wedding car next weekend
I need a new Diff, have a 3.45 at the moment and thinking about putting a 3.31 in
Reason i ask is i dont want to loose to much acceleration but like the idea of slightly taller gearing
Some figures:
VMax....... 159mph on rev limiter @ 6100rpm
Santa Pod.. 1/4mile 12.9sec Terminal 108.7mph .. 1/8mile 8.36sec 87mph
60ft 1.964sec 330ft 5.467
this is the power curve
Will a 3.31 affect it much ? which would you go for ??
Thanks in advance
p.s. anyone got a cheap BTR & i might not worry about which ratio
I need a new Diff, have a 3.45 at the moment and thinking about putting a 3.31 in
Reason i ask is i dont want to loose to much acceleration but like the idea of slightly taller gearing
Some figures:
VMax....... 159mph on rev limiter @ 6100rpm
Santa Pod.. 1/4mile 12.9sec Terminal 108.7mph .. 1/8mile 8.36sec 87mph
60ft 1.964sec 330ft 5.467
this is the power curve

Will a 3.31 affect it much ? which would you go for ??
Thanks in advance
p.s. anyone got a cheap BTR & i might not worry about which ratio
Edited by Seasider on Wednesday 16th May 18:07
Seasider said:
Steve_T said:
Might be worth seeing if you can get one from Aus
Seasider said:
Sorry about the "urgent" but i need to sort this a.s.a.p. Griff being used as a wedding car next weekend
Bl00dy Cerb drivers
Podie said:
M@H was always good at this sort of thing, drop him a line 

I can't see why you need a new diff for a Wedding appearence but there you go. Odd buggers these griff drivers ...
Edited by Steve_T on Wednesday 16th May 19:34
Steve_T said:
What about gearboxman ?
Spoke to him today, it's a time thing again
will probabaly give him my existing one for re-build anyway, hence pushing my thinking to a 3.31 and having the two options
Hughesie II said:
Seasider said:
& Def needs doing before LeMans
so no excuses this year then eh - oooh me brakes, ooh me diff
If i dont get it sorted forget LeMans as well
but it will be done
Anyway can you do something constructive for a change
rather than taking the p!ss & make this a sticky for tonight
Seasider said:
v8sag said:
Closest you can go is a 3.23 crown,if youv'e got an engine with some gogo try the 3.08
I think 3.31 is only one i can get asap & thats the main problem at the moment
Note that i didn't quote all your post
3.31 seems a odd size for a m76 btr,if you want a quote on a 3.08 I can probably have it couried in days,plenty over here.
v8sag said:
3.31 seems a odd size for a m76 btr,if you want a quote on a 3.08 I can probably have it couried in days,plenty over here.
You are a gent

Must admit i would be worried about loosing to much acceleration with 3.08 would make VMax interesting

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