My sp engine c/w cams, sp loom, Mitsubishi box (the electrics came from MM couple of years back) could be available as a package if good offer.
Engine is Roger M tuned and the bike did the manx this year. I wont be doing the manx again on a 400 (back pain only just subsided!!!) so pm me if interested and cash always talks!!
SP gearbox wanted or SP engine
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- L-plate hell
- Posts: 472
- Joined: Sun Jun 22, 2008 2:25 pm
- My Bike: zxr400 track, vfr800 road
- Location: Aberdeen, Scotland
Re: SP gearbox wanted or SP engine
Fatspanner Racing/[/size][/color]
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- Posts: 2
- Joined: Thu May 20, 2021 3:30 am
- My Bike: ZXR400 H1 (89)
Re: SP gearbox wanted or SP engine
Can the 'Taller' first gear from a SP gearbox be added to a standard 'Normal' non-SP gearbox?
When racing - I am pulling Wheelies off the start that are causing issues.
The gearing for the rest of the track are very good, so just looking to add a taller 1st gear.
Looking forward to your thoughts.
When racing - I am pulling Wheelies off the start that are causing issues.
The gearing for the rest of the track are very good, so just looking to add a taller 1st gear.
Looking forward to your thoughts.
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- Posts: 132
- Joined: Tue Aug 26, 2008 8:29 pm
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Re: SP gearbox wanted or SP engine
I don't believe it can. Its a question I asked years ago and a fella explained why not, but I never really understood his answer, I just took his word you cant, and as Ive never heard of anyone doing, I guess this is true. You could have a transmission made from scratch by someone like Nova, who do loads for race teams, but I think you are talking £2000 plus. The tall 1st gear defo helps reduce wheelies but it takes quite a knack to launch without bogging down, especially on tracks where your bike is geared high anyway such as Thruxton.
- Miles
- zxr400 oc member
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- My Bike: ZXR 400 L3
- Location: Bangor, Northern Ireland
Re: SP gearbox wanted or SP engine
Sorry to jump on this thread but out of interest does anyone know if it’s possible to identify an SP gearbox on the bench?
I have one and have been assured it’s an SP gearbox but would just like to confirm
I have one and have been assured it’s an SP gearbox but would just like to confirm