longer 5th gear
19 September 2010, 04:54 PM
#1
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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
martin
19 September 2010, 06:09 PM
#3
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
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
20 September 2010, 05:05 PM
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21 September 2010, 11:59 AM
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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
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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22 September 2010, 02:37 PM
#8
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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
what is max speed on longer 5th-150mph ish??
martin
22 September 2010, 04:35 PM
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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
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24 September 2010, 09:45 AM
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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
Get them out of line and problems start to appear.
Commonsense wins the day.
David
24 September 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
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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