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Redgrave's metro
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Dave 20VTRO
Posted 13/9/2013 12:05 AM (#703375 - in reply to #703374)
Subject: RE: Redgrave's metro
Elite Veteran

Posts: 925
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Location: Thinking of vvc'ing my Roadster Brabus :-)
redgrave66 - 13/9/2013 9:46 PM

Dave 20VTRO - 12/9/2013 10:11 PM
]

ZR 160 box is a 'C' 1st and 2nd, and the rest is BRM (0.848 5th), on a 3.9, will be too low,
go for a 'C' 5th (0.765) on a 3.9 and work back for the best spaced ratios.


Could i use a r200 diesel 5th?

Or is 0.765 the lowest 5th? I have a c4 in my car atm


The BRM has the lowest 5th at 0.848), You have a 4.2 final drive atm (that is the '4' bit in 'C4')
('C6' has the same gear cluster, but a 3.9 final drive).
I think the ZR 160 has a 4.2 (G4 ratios). A diesel 5th will be too tall (0.645 I think), plus its
harder to get the other ratios to suit unless you fit a diesel box (with the bell housing changed)
Plus I think diesel boxes are uprate, so it complicates converting, and the ratios are wide spaced
to suit the torque of a diesel engine. A std MGF/TF/ZR 1800 non VVC box (C6 ratios) and bang in a
LSD type A or B is the way to go, dont forget that a ZR 1800 box will have the cable clutch arm,
the MGF/TF will have the hydraulic arm, just something else to source for the conversion.

Edited by Dave 20VTRO 13/9/2013 12:09 AM
redgrave66
Posted 13/9/2013 11:19 AM (#703385 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		So a c6 box has 3.9fd and the best option is to put the diff in that, ok should i build the brm ratios with a standard diff for a spare?

Brm box, taking the 3.9fd off the diff..







Next box to come apart is the zr160, i just want to count the crownwheel teeth to check it is a vvc box, fingers crossed its a c6 lol
redgrave66
Posted 13/9/2013 11:21 AM (#703386 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Gearbox Code 1 2 3 4 5 Final Drive Used In
G6BP 3.250 1.895 1.308 1.033 0.848 3.938 S2 111S (WR "long" box)
C4BP 3.167 1.842 1.308 1.033 0.765 4.200 MGF VVC (as standard but final drive 4.2)
C6BP 3.167 1.842 1.308 1.033 0.765 3.938 Elise S1 standard and MGF
B4BP 2.923 1.750 1.308 1.033 0.848 4.200 S1 111S & S1 Sports 135 & S2 135R & S2 standard (CR Box)
B4BPU 2.923 1.750 1.308 1.033 0.848 4.200 Exige S1 uprated (CR Box)
B4BPQ 2.923 1.750 1.308 1.033 0.848 4.200 Exige S1 with LSD (CR Box)
B6BST 2.923 1.750 1.308 1.033 0.848 3.938 Rover "BRM" 200 - CR box with std final drive & torsen LSD
340R UCR 3.0 1.937 1.556 1.273 1.043 3.92 340R LOTAC05255 Conversion
NA 3.167 1.842 1.410 1.100 0.909 3.938 Eliseparts

Edited by redgrave66 13/9/2013 11:27 AM
redgrave66
Posted 13/9/2013 11:31 AM (#703388 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		dp

Edited by redgrave66 13/9/2013 11:35 AM
redgrave66
Posted 13/9/2013 12:43 PM (#703391 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Just pulled the 'zr160' box apart and it has 63 teeth on the crownwheel same as the brm one, does this mean its a 3.9 final drive and most likely to be a c6 box?

Will be great if it is!
GTaddz
Posted 13/9/2013 12:52 PM (#703392 - in reply to #703391)
Subject: RE: Redgrave's metro


Expert

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Location: Up in the lakes		Divide the no of teeth on the crownwheel by the no of teeth on the pinion. That should give the fd ratio. Hope it is a c6 bud, saves forking out on another box. Gets confusing dont it thinking about different gear ratios all day. Lol
redgrave66
Posted 13/9/2013 2:16 PM (#703398 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		It was 15 on the pinion so 4.2

The brm pinion is 16 so 3.9 so do these box's both use the same 63 tooth crownwheels or are they a different pattern..
redgrave66
Posted 13/9/2013 2:16 PM (#703399 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Has anyone got a 135bhp spec box or a none vvc one they want to sell?
, i have looked at charts and rover 45 1.8 has 3.9fd

C6bm is whats in a 1800 petrol r45, it looks to have better ratios



Edited by redgrave66 13/9/2013 2:24 PM
redgrave66
Posted 14/9/2013 1:50 PM (#703412 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Right i now have a c6bp box with these ratio's

C6Bp-- Elise / MGF-- 3.25 1.894 1.307 1.033 0.848 3.937
1st 2nd 3rd 4th 5th Final Drive

Hope this will be the last of my gear ratio saga



Edited by redgrave66 14/9/2013 1:51 PM
Dave 20VTRO
Posted 15/9/2013 7:01 PM (#703444 - in reply to #703398)
Subject: RE: Redgrave's metro
Elite Veteran

Posts: 925
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Location: Thinking of vvc'ing my Roadster Brabus :-)
redgrave66 - 14/9/2013 1:16 PM

It was 15 on the pinion so 4.2

The brm pinion is 16 so 3.9 so do these box's both use the same 63 tooth crownwheels or are they a different pattern..


They're different.
Dave 20VTRO
Posted 15/9/2013 7:10 PM (#703445 - in reply to #703412)
Subject: RE: Redgrave's metro
Elite Veteran

Posts: 925
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Location: Thinking of vvc'ing my Roadster Brabus :-)
redgrave66 - 15/9/2013 12:50 PM

Right i now have a c6bp box with these ratio's

C6Bp-- Elise / MGF-- 3.25 1.894 1.307 1.033 0.848 3.937
1st 2nd 3rd 4th 5th Final Drive

Hope this will be the last of my gear ratio saga




It might not be!!, I've just looked at your ratio list, (easier when its all in front of you!!), if it was me, I'd fit the BRM
1st, 2nd, 3rd, 4th and a 0.765 5th with the 3,9 final drive.
What you now have is the same box, but with a slightly lower 1st and 2nd.

Edited by Dave 20VTRO 15/9/2013 7:15 PM
redgrave66
Posted 15/9/2013 10:01 PM (#703461 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Im to use all brm stuff but stick the c6 5th in.. so that will be one of the best ratio sets ?
Thanks for the info as always

edit looking at the chart again the c4 5th is the one i will use to try and keep a good complete c6 box as a spare

Edited by redgrave66 15/9/2013 10:11 PM
redgrave66
Posted 16/9/2013 2:59 PM (#703499 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		impatience got the better of me again, i collected the c6, ripped it apart and stole 5th which
turned out to be 25 tooth with the brm 5th having 27

So the brm gearset with c6 5th is ready to drop in the casings currently in the car..back to 3.9fd
redgrave66
Posted 20/9/2013 1:46 PM (#703680 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		I have dropped this gearset into my casings but i cant get 5th.
All others are fine, all i have done is pulled 5th out the c6 and put it on the brm tower..also changed the sycro for 5th on the input shaft but somethings not right,
redgrave66
Posted 2/10/2013 2:46 PM (#704256 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Im forgetting about the custom ratios till next year so I have sorted the a series back end and bought some bits for her.





redgrave66
Posted 5/11/2013 9:55 AM (#705608 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		The box has been done and im over the moon with it, i will say that a c4 box with the torsen gives awesome acceleration but thats not whatim after.

I have also fitted a sweet 1.8 solid cam with the vernier and baffled sump.


Sadly i missed out on Donington, but i am now booked in for the 24th november at donny
redgrave66
Posted 5/11/2013 12:22 PM (#705619 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire



matt
Posted 16/11/2013 9:53 PM (#706213 - in reply to #621164)
Subject: RE: Redgrave's metro
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Location: South Derbyshire		Looks good mate. Does it go well ?
Paul r
Posted 16/11/2013 10:13 PM (#706217 - in reply to #621164)
Subject: RE: Redgrave's metro
Extreme Veteran

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Location: Swindon, Wilts		Have you spaced the front? Looks proper mean, I have that sort of fitment with 14x6 et36 wheels!
Liam_allen17
Posted 17/11/2013 1:13 AM (#706224 - in reply to #621164)
Subject: RE: Redgrave's metro


Regular

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Location: Earl shilton, leicestershire		looks mint mate nice car if you see a yellow citroen dyane around its probaly me unless mine has a twin
redgrave66
Posted 17/11/2013 1:37 PM (#706245 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Yes matt it goes well, im thinking of putting it on the dyno to dial the verneir in before Donny, hopefully ill have a black front bumper soon

Paul the fronts are spaced 5mm and full tf setup polybush'd

I really am in love with my metty lol

matt
Posted 17/11/2013 6:47 PM (#706263 - in reply to #621164)
Subject: RE: Redgrave's metro
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Location: South Derbyshire		Bumpers yours dude
redgrave66
Posted 14/12/2013 9:31 PM (#707619 - in reply to #621164)
Subject: RE: Redgrave's metro


purple_metty

Posts: 2165
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Location: leicsestershire		Cheers Matt!

At Donny today, no rain but a slippy track









Edited by redgrave66 14/12/2013 9:39 PM
matt
Posted 15/12/2013 12:29 PM (#707635 - in reply to #621164)
Subject: RE: Redgrave's metro
Expert

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Location: South Derbyshire		You still owe me a passenger ride
111Sli
Posted 15/12/2013 1:18 PM (#707636 - in reply to #621164)
Subject: RE: Redgrave's metro


Transport Guru
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Location: Bromley, Kent		Get the bloody tailgate painted! Lol

Like the SPis!
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