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:potstir: :2thumbs: i got a 86 gsxr 1100 i want to turn into a grudge bike can u tell me what i got to do thanks
 

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OLD SCHOOLS ARE HARD TO MAKE INTO GRUDGE BIKES DUE TO THEIR WEIGHT. TYPICALY YOU ARE GOING TO GIVE UP ALOT OF WEIGHT TO THE NEWER 1K'S AND BUSA'S. WE'VE GOT A GUTTED WC 1100 AND IT STILL WEIGHS ALOMOST 500LBS.

BUT IF YOU PUT ENOUGH DOPE ON THEM THEY CAN MOVE......:2thumbs:

ALEX HUGHES
 

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Discussion Starter #4
:buttrock::potstir:
OLD SCHOOLS ARE HARD TO MAKE INTO GRUDGE BIKES DUE TO THEIR WEIGHT. TYPICALY YOU ARE GOING TO GIVE UP ALOT OF WEIGHT TO THE NEWER 1K'S AND BUSA'S. WE'VE GOT A GUTTED WC 1100 AND IT STILL WEIGHS ALOMOST 500LBS.

BUT IF YOU PUT ENOUGH DOPE ON THEM THEY CAN MOVE......:2thumbs::nuts:

ALEX HUGHES

thanks man ima build a all motor bike
 

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Spray for Spray you could grudge race an oil cooled or watercooled GSXR all day long against the newer 1000's that are fully grudged out...but I don't think an ol' skool could keep up with a slick and slider Busa on spray or all motor. The most horsepower you could hope for with an oil cooled GSXR on motor is in the 215-230 range and that's with a BIG $$$ head on it and at least a 5mm stroker.All though you would be at 1500cc's or more to make that power the newer 1000's make about the same power on motor in full grudge trim.Grudge Busa's can make 280+horsepower in all motor trim so you would be heavier and make way less power.Ol' skool's can be made to fly but I think honestly the better choice for match ups would leave you running against the 1000's. Joe Long was going 7.40's a few years back on an oilcooled GSXR in outlaw trim(same as a grudge bike) so it's for sure possible to make em fly.
 

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The 86 frame is supposed to be quite a bit lighter than the newer oil cooled frames, Im thinking 430 may be possible on all motor. Afriends 88 slingshot weighs in at 470 and its pretty much loaded w heavy wheels and full nitrous set up, both front brakes and a 92 heavy headlight. Dont sleep though you can get those bikes to sixty foot right there w a pst bike. Would be interesting to c a full on new tech grudge 86 build. How long you want to go?
 

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Discussion Starter #8
gsxr 1100 grudge bike

:buttrock::2thumbs:i was told i can get it down to 370 cause the 86 frame is lighter then the newer 1100 frames ill be postin pics threw out the build it may take me awhile but it will get finished and be at a track
 

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Good deal. Guys that were running these things have all but abandoned them for the newer stuff so you can get some CRACKHEAD deals on parts for them...I will say this,If your making serious power Id recommend putting a BRAND new crank in it.High mileage cranks are known to break in these things if subjected to any kind of racing abuse.Also an often overlooked aspect of these is the tranny.Give R&D or Robinson a call and get yourself a good tranny.Stock 1100 trannys don't deal well with traction and high horsepower.You will have shifting issues or worse yet broken gears if you don't adress the issue before hand.
 

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Can't wait to see it.:2thumbs::2thumbs: Good luck with the build.:buttrock:
 

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my 91 750 chassis in grugde form is way under 400 , u can do alot to these bikes , but all motor aint the way to go , i have a BIG MOTOR , and I mean BIG , and it makes big power, but all motor it still aint enough , u could run a average grudge bike but anything well built u will get drove around ! nos is the way to go , and chromolly is ur friend!!!!!!!!!
 

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Pm me may have a idea you mite want its a secret or I would til you in the post:hysterical::s21:
 

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put a turbo on it hell mine is 74" long makes over 320 hp on low boost and is all stock motor. convert to a 2002 1k multi stage and go. thers plenty u can do to make them very fast.
 

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The most important thing is seat time. You could have the baddest bike in the world, and if you cant ride it, It wont matter any way. Good Luck to you, tho. :2thumbs:
 

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i have a hann race craft turbo kit for 1500 and lots of go fast parts .i sold my 64inch 92 oilcooled last year it ran with k1 and over some. with multi stage clutch.60ft in the 1.2s call me if u need parts or help 301-674-2644
 

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I don't know how much my Oil Cool weight, but I'll give a 1000 or a Busa hell! I have a under cut tranny for a Oil Cool if you need one. Because if you going to apply any type of power to these bikes your tranny go to be able to handle it.

 
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