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Old Sep 19, 2010 | 04:54 PM
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Question longer 5th gear

i have type ra gearbox in my murtaya-how do i convert 5th to be longer so not revving my nuts off or easier just to buy p1 gearbox with longer 5th to start
martin
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Old Sep 19, 2010 | 05:22 PM
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From: Slowly rebuilding the kit of bits into a car...
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Swap the fifth gear for a UK spec item, best of both IMHO.

dunx
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Old Sep 19, 2010 | 06:09 PM
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but christ the jump from 4th to 5th would be mental

i fitted a UK box as that has 3.9 diff ratio ( rear is converted to the same) and has the taller gears which works for me as i love motorway driving
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Old Sep 20, 2010 | 05:05 PM
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Originally Posted by dunx
Swap the fifth gear for a UK spec item, best of both IMHO.

dunx
how do i or someone else do that and rough estimate of cost?
ginge-i love motorway driving but only in my diesel scooby lol
marti
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Old Sep 20, 2010 | 05:09 PM
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Give David at API a ring, he will point you in the right direction
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Old Sep 20, 2010 | 08:53 PM
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From: Nr Grimsby
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Dont do it, its wrecks the drive..........

The feeling is horrible from 4th to 5th and a massive jump and drop in revs.
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Old Sep 21, 2010 | 11:59 AM
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From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
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I've just bought in a Type R [ RA ] V limited with the longer 5th gear. it is in fact the .825 5th and the drop in revs is about 1500.

Actual ratios should be
3.083
2.062
1.545
1.151
0.825

P1 by comparison

3.166
1.882
1.296
0.972
0.738

which is higher geared all through except for 1st

Both run 4.4 rear diff, but of course the JDM cars have dccd.

It does give a sensation of dropping ' off the cam ' but cannot be beaten for motorway cruise and MPG.

In my opinion it is worth changing if you do any serious amount of long trips.

Cost done here about £500.00 + VAT drive in-drive out assuming no gearbox damage once inside looking. No need for the box to come out of the car.

David APi
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Old Sep 22, 2010 | 02:37 PM
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sounds great how long would it take to do and how much notice do you need ,i try and do spa/ring every year so long 5th definitely needed
what is max speed on longer 5th-150mph ish??
martin
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Old Sep 22, 2010 | 04:35 PM
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From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
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Originally Posted by p1doc
sounds great how long would it take to do and how much notice do you need ,i try and do spa/ring every year so long 5th definitely needed
what is max speed on longer 5th-150mph ish??
martin
Done in a day to be safe, possibly can be done on a Saturday morning with a good start at 8.30 and finish by 1 pm.

The max speed will depend upon whether your engine will rev out on the higher gears, so you should be in the mid 150's but your car is your car if you see what I mean.

Dangerous to run at that speed on a top mount, or anything much above 110 mph. The air intake temps will rise dramatically and then there'll be a loud rattling sound.................

A version 8 scoop will help, fmic is the answer.

David

01926 614522 or 333
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Old Sep 23, 2010 | 07:12 AM
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No need for the box to come out of the car.
Now I am impressed
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Old Sep 23, 2010 | 04:18 PM
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must be good if you are impressed lol,i did wonder how it could be done without box coming out!
thanks for all the advice david
martin
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Old Sep 23, 2010 | 06:42 PM
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From: Nr Grimsby
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Originally Posted by p1doc
must be good if you are impressed lol,i did wonder how it could be done without box coming out!
thanks for all the advice david
martin

Its a very easy job to do mate
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Old Sep 24, 2010 | 09:45 AM
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From: @Junc 12, M40 Warwicksh; 01926 614522 CV33 9PL -Use 9GX for Satnav. South Mids Alcatek ECu dealer
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As 172 says. The only tricky part is that there are 3 locating tags on the reverse gear synchro hub that need to line up with their corresponding places on the rear assembly.

Get them out of line and problems start to appear.

Commonsense wins the day.

David
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Old Sep 24, 2010 | 05:18 PM
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But how does the Murtaya compare for access ??

dunx
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Old Sep 24, 2010 | 05:48 PM
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When I bought my RA, I was told it had a 5th from a WRX.

The jump from 4th to 5th is

My old man said it's like having a car missing a gear

Is good for motorway driving though, and does wonders for the MPG even if only a little helps
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Old Sep 24, 2010 | 07:00 PM
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From: WMI
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The jump from 4th to 5th in the early 6 speed boxes is the same. You have to really rev out 4th, or fall out of the power when you go into 5th. Shame really!
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Old Sep 24, 2010 | 09:05 PM
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should be much nicer to drive on autobahn and fast bits of ring though!
martin
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