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Can both of these boxes go behind a 253 in a ute and what would be the benifit of each.
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yes, and the only difference is the ratios
If nissan motorsport is nismo, then doesnt that make honda motorsport Homo?
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yes, and the only difference is the ratios
If nissan motorsport is nismo, then doesn't that make honda motorsport Homo?
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There are 2 versions of the M20, 1 for a V8 and 1 for a 6, the difference is the input shaft.
James
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isn't the M21 the GTR box?
If nissan motorsport is nismo, then doesn't that make honda motorsport Homo?
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isnt the M21 the GTR box?
If nissan motorsport is nismo, then doesnt that make honda motorsport Homo?
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M20 were the common box behind the 202 but were also used for the 253. The 308 used the M21. I not sure about the M21 in the XU1, whichever box you use will need to have the correct shaft, 1 is longer than the other.
James
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You'll rarely find a genuine XU-1 M21. Most were fitted with the normal XU-1 box with the 899 cluster and 1.25:1 3rd gear.
As to the original question, any V8 M20, M21 or even a made up M22 will fit. they are externally the same. Unless you have a 3.55 d |
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Youll rarely find a genuine XU-1 M21. Most were fitted with the normal XU-1 box with the 899 cluster and 1.25:1 3rd gear.
As to the original question, any V8 M20, M21 or even a made up M22 will fit. they are externally the same. Unless you have a 3.55 di |
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Hi Byron. The XU-1 box (899 cluster) was called the M20 as you say, but have you ever seen an XU-1 body tag or any paperwork to suggest that any of the other XU-1 boxes were called an M21. Have you ever seen or known of any XU-1 that came from the f Edited by user Thursday, 17 January 2008 10:23:19 PM(UTC)
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Terry
I have always called them M20 as a GTR XU-1 has nothing on the body plate, meaning the box is standard. But apparantly the 899 cluster XU-1 box was simply called an XU-1 4spd. Not M20 or M21.
I call the 1.38:1 3rd gear 6cyl box an M21 as it is i |
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Hi Byron.
I have seen several XU-1s with M20 on the body plate. I believe this was only done at the Adelaide factory, in late LJ production.
AFAIK there were 3 different ratio sets homologated for the XU-1 including the 2.32 1st gear type box.
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I understand the M20 BODY plate bit. What I meant was Holden would appear to have never seen the XU-1 box as anything other than an M20, even though it was a different ratio. The fact late Elizabeth cars have M20 makes it seem even clearer. To be 100% cor |
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i have always sold 2.32 1st gear 6 cyl boxes as "bathurst" boxes.
to avoid confusion.
these boxes usually have yellow paint XU on the side.
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I'm surprised you've ever found one. They were so rare the input shaft never even got a part number. It was a homologation option only for 1973 Bathurst XU-1's. I'd be surprised if more than a dozen ever existed.
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Im surprised youve ever found one. They were so rare the input shaft never even got a part number. It was a homologation option only for 1973 Bathurst XU-1s. Id be surprised if more than a dozen ever existed.
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i would have owned / sold 4-5 of them,
2.32 1st gear 6 cyl boxes.
so they must have been more common than that.
my 5/72 car also had one in it - not saying it was factory thou..
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so you single handedly dealt with half of the X-U1 boxes? i think you may be mistaking it for another box.
If nissan motorsport is nismo, then doesnt that make honda motorsport Homo?
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so you single handedly dealt with half of the X-U1 boxes? i think you may be mistaking it for another box.
If nissan motorsport is nismo, then doesn't that make honda motorsport Homo?
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Are you sure you're not talking about standard XU-1 boxes with the 899 cluster? The 2.32:1 1st gear box has a cluster unique to this box and an L34 race box. Input shaft part number starts with EREW
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