zed
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Posts: 38 
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Post by zed on Nov 4, 2014 18:29:54 GMT
i have just bought a gsxr 1100 off a mate who wants the engine for his dragbike , what engine should i put back in , b12 or gsxr , i am going to go draw thru would like 200hp what engine mods should i do regarding pistons & rods to lower cr , thanks in advance  |
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greybush
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Posts: 27
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Post by greybush on Nov 4, 2014 20:17:10 GMT
I would go with a bandit motor, bandit motor has better cams for turbo use, back cut transmission, and a more turbo friendly 9:1 comp ratio. mods for 200hp would be busa pistons, lock-up clutch with steel basket 4 coil spring hub.
my own experience with a bone stock bandit motor let me run 12psi draw thru mr turbo set-up for a long time with water injection, at 14psi i did break a piston.
hope this is helpful
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gixxerharry
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Post by gixxerharry on Nov 4, 2014 20:28:30 GMT
Gsxr has a stronger gearbox (also back cut) and better/stronger clutch
If you dont have a engine yet than a theepot 1100 is something to think about (cheap and very good gearbox,2nd gear last much longer)
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greybush
Velociraptor
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Post by greybush on Nov 4, 2014 21:34:57 GMT
Maybe thats why my 2nd gear exploded after 63,000 miles, 43,000 miles with the turbo?
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gixxerharry
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Post by gixxerharry on Nov 5, 2014 15:24:22 GMT
(2nd gear is for all oil cooled engines a weak point but whit some engines it is a bit less of a problem......but still a weak point)
GSX1100F engines are cheap so that is why i point them out to you
Have more power than a Bandit but less than a GSXR and the gearing is not the same as a GSXR
I run a 1100 F whit a 1100M head and bumpsticks and 38mm carbs........good engine but not as fun as a good gixxer engine (was very cheap and it is my spare engine)
Problem whit the gsx1100f engine is the clutch
It wont disengage as good as a Bandit or GSXR,they pull and shifting to neutral is a pain (must be done while still driving)
I have a GSX1100F in my bike and did the clutch mod and put in a diagram spring and the clutch is much better than a stock one but still it does not disengage as good as a Bandit or GSXR (must be something to do whit the helical gears on the crank and clutch)
Most of turbo gixxers here in Holland use these engines
I have seen pics of very bad pitted gears but still they did not jump 2nd gear
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zed
Velociraptor
Posts: 38
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Post by zed on Nov 6, 2014 23:03:08 GMT
I would go with a bandit motor, bandit motor has better cams for turbo use, back cut transmission, and a more turbo friendly 9:1 comp ratio. mods for 200hp would be busa pistons, lock-up clutch with steel basket 4 coil spring hub. my own experience with a bone stock bandit motor let me run 12psi draw thru mr turbo set-up for a long time with water injection, at 14psi i did break a piston. hope this is helpful thanks for the reply i think i will go for the bandit motor are they bucket & shims or tappets ?i will get a gsxr clutch & a lockup & am going to get a garrett t3 , will any year busa pistons be ok ? |
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Post by captain chaos on Nov 7, 2014 9:15:12 GMT
tappets
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zed
Velociraptor
Posts: 38
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Post by zed on Nov 7, 2014 10:43:49 GMT
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Post by clivegto on Nov 7, 2014 14:20:15 GMT
You need early busa pistons as newer ones have smaller gudgeon pins.
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zed
Velociraptor
Posts: 38
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Post by zed on Nov 9, 2014 0:26:29 GMT
You need early busa pistons as newer ones have smaller gudgeon pins. thanks for that |
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greybush
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Posts: 27
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Post by greybush on Nov 11, 2014 20:21:02 GMT
I hoping these will not break like my stock 2nd gear in my bandit motor did, this set is a billet set from robinson industries.  |
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