scootz
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| posted on 9/11/07 at 12:39 PM |
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Hayabusa TB's... DIY Kits?
Does anyone offer an 'off-the-shelf' Busa TB spacing kit (XE engine)?
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twybrow
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| posted on 9/11/07 at 01:13 PM |
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Aren't they overkill for an XE? I am aure I read somewhere, that they are too big for most 'normal' applications. Could be wrong
tho. I would speak to SBD. Tehy do a lot of parts ofr Hayabusa and XE's. They would surely have
something suitable.
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Phil.J
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| posted on 9/11/07 at 01:15 PM |
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I did my own quite easily. use M5 allthread to replace the long bolts, make some aluminium spacers to adjust the spacing, and weld some tags on the
throttle likeage tabs as required. HTH
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matt_claydon
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| posted on 9/11/07 at 01:26 PM |
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Here:
http://throttle-bodies.com/shop/product_info.php?cPath=22_24&products_id=139
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Jenko
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| posted on 9/11/07 at 02:13 PM |
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quote:
Originally posted by twybrow
Aren't they overkill for an XE? I am aure I read somewhere, that they are too big for most 'normal' applications. Could be wrong
tho. I would speak to SBD. Tehy do a lot of parts ofr Hayabusa and XE's. They would surely have
something suitable.
Busa TBs are 46mm I think), so unless you are running big power XE engines then they are a little large.....Will still work ok, but with TB's
and carbs, it's always better to use as small as possible........top end should be changed too much though.....
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scootz
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| posted on 9/11/07 at 02:52 PM |
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Most TB'd XE's that I know of run 45's, so I guess the Busa isn't too OTT.
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scootz
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| posted on 9/11/07 at 03:08 PM |
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Cheers Matt.
Order placed - will report on the pro's and (hopefully none!) cons.
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stevebubs
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| posted on 9/11/07 at 08:13 PM |
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think the busa ones are 46mm tapering to 42 - i.e. same as 750s....
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Jenko
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| posted on 9/11/07 at 09:24 PM |
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If they taper down to 42mm then that should be perfect......I realise many people go with the 45mm TB's....However, all the theories about TB
diameter would indicate it is not optimun....
I think many people go for this size in the hope of future upgrades to justify the size (which is fair enough)....But 200bhp would rarley need bigger
than 40mm / cylinder....
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matt_claydon
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| posted on 10/11/07 at 05:12 PM |
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You can't compare TB size with Webers as the carbs have venturis inside that reduce their bore to considerably less than the quoted size of the
carb.
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GregSL75
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| posted on 12/11/07 at 11:07 PM |
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I'm running GSXR1000 ITBs on an XE and it makes 200bhp. Can't remember the diameters offhand, but 42mm rings a bell for exit size.
2.0 XE on GSXR TBs and Megasquirt
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