View Full Version : The outcome of 700cc and GSXR front end
SV650Racer
14-03-06, 06:51 PM
Finally have got my SV650 done and ready for its first race weekend.
Just to let those know that are interested in modding their SV650 the outcome of a winters hard work etc has been well worthwhile.
The 700cc kit and balanced crank has made a big improvement in grunt. 80BHP at the rear wheel (71 before) - on the series dyno which is accurate - expect 85 on a dynojet dyno - . It now drives a hard as you like and revs very quickly. Still more to come as i am taking it step by step with the mods to develop a rideable and reliable bike without having to go to some extremes.
The slipper clutch has made the biggest difference, allowing my braking and downshifting to be done alot later, the bike is more stable and a hoot to ride!.
The GSXR600K4 front end...fab!. Brakes are excellent, it turns better and holds a line well. The forks are std spec too so after some revalve work they should be awesome.
Not practical really for the road or a small budget but i reckon Suzuki should make this bike.... :lol:
http://img67.imageshack.us/img67/4050/brands33wk.jpg
http://img67.imageshack.us/img67/3228/brands17gl.jpg
Flamin_Squirrel
14-03-06, 07:05 PM
Nice!
Not very minitwins legal though :shock:
Jelster
14-03-06, 07:08 PM
Nice!
Not very minitwins legal though :shock:
My thoughts exactly.....
.
but i reckon Suzuki should make this bike.... :lol:
Yes well one of the reasons they won't is because it would seriously embarrass the GSXR crowd. Lovely bike, I look forward to um (cough) taking it for a spin :lol: .
I also think there's a bigger market for something like this than Suzuki reckon.
.
chunkytfg
14-03-06, 07:26 PM
Nice!
Not very minitwins legal though :shock:
My thoughts exactly.....
.
nope but perfectly legal for the new thunderbikes class :wink:
sweet bike would love to take it round a track
Cheers Steve
Yup, I think that's what we'd all like.
I bet she flies now. 8)
Halonic
14-03-06, 08:21 PM
http://img67.imageshack.us/img67/3228/brands17gl.jpg
that looks suspiciously like the very bloody cold Brands from this last weekend
and I see that Thunderbikes is down for a 13th/14th May Bemsee session
well then, I shall be seeing you there :)
kwak zzr
14-03-06, 08:48 PM
very nice! glad to see all your hard work has paid off. :D
GSXR Carlos
15-03-06, 09:57 AM
looks fantastic, did you work out a cost? not including scraped knuckles and love lost :lol:
northwind
15-03-06, 10:08 AM
Nice... Thought you were going with busa pistons?
What I realyl want to know is, what does it weigh? That's where the proper madness could strike Thunderbikes SVs I reckon ;)
johnnyrod
15-03-06, 12:18 PM
If Suzuki made this it'd save us a lot of trouble... hmm, sure we'd still find things to fiddle with.
northwind
15-03-06, 12:36 PM
Well, we'd need to figure out somewhere to put headlights, clocks etc ;)
Captain Nemo
15-03-06, 03:48 PM
me want me want
chunkytfg
15-03-06, 03:59 PM
Well, we'd need to figure out somewhere to put headlights, clocks etc ;)
It uses standard clocks :wink:
northwind
15-03-06, 04:09 PM
Really? Would've thought that'd be the first thing you'd chop off a race bike... Unless you want to be able to daytime MOT it and pop down the shops on it between races :) Fair amount of weight tied up there surely?
chunkytfg
15-03-06, 04:14 PM
Really? Would've thought that'd be the first thing you'd chop off a race bike... Unless you want to be able to daytime MOT it and pop down the shops on it between races :) Fair amount of weight tied up there surely?
hardly...the digiclocks dont weigh alot atall. maybe a kilo tops.
dont forget also the thunderbike rules are set atound bhp/kilo so if sarah gets too much she'll need the extra weight to not get disqualified
SV650Racer
15-03-06, 04:27 PM
like your style chunks :lol:
I like the std clocks as they clearly show rev's and it also means the FI light works along with the oil light etc etc. They dont weigh much TBH and at the end of the day i could go mad on wheels, small race dash etc etc but you have to draw a line...a big fat one!! 8) . Spent about £8-9k including the bike... :roll: A flash race dash isnt going to make me go any quicker!
Weight....not sure yet - need to find some scales which are accurate. Our ones show 152kg wet and others have shown 166 wet so am working on that!.
Was going for the busa pistons but the 700cc kit seemed to be where its at..more torque - more than a sports 600 and to keep up with the Buells then i need all i can get :wink:
Working now on some other bits...but its nearly there. Oh and yes its road reg..on a sorn and all i need is a numberplate, horn and a daytime MOT :P ...
chunkyletters wrote:-
dont forget also the thunderbike rules are set atound bhp/kilo so if sarah gets too much she'll need the extra weight to not get disqualified
However if she did need to add weight surely it would be better to add it as low down (i.e. add some ballast somewhere under the engine?) and central as possible, rather than stuck over the top of the front wheel?
SV650Racer
15-03-06, 04:52 PM
weight can be added by running more fuel in the tank!. The easiest way to add more weight. I could start sticking lead everywhere but i very much doubt my bike will need it. Hence why the engine has had a mild tune rather than a ballsout one!. I i do it in stages then i should be ok.
Oh and yes weight is best added under your **** area as it will be more balanced. But then you can go down the road of weiging the front end and then the back to check the balance of the bike and it could get very technical.
All i need now is a diet as they dont weigh the rider :P :lol:
northwind
15-03-06, 05:23 PM
hardly...the digiclocks dont weigh alot atall. maybe a kilo tops.
Kilo's not light though... Though as you say, no point in shaving off weight if it ends up breaking the series rules.
chunkytfg
15-03-06, 05:40 PM
like your style chunks :lol:
Working now on some other bits...but its nearly there. Oh and yes its road reg..on a sorn and all i need is a numberplate, horn and a daytime MOT :P ...
Like i said on VD, it will be a please to be your pit bitch this year :P :lol:
So come on then whats these 'other bits' then?
And also what time you going to get up to snetterton? i assume thursday night some time? if so then i should be to norfolk by about 4pmish to give you a hand
SV650Racer
15-03-06, 06:12 PM
The other bits are top secret but might tell you if you promise to keep quiet!. BTW they arent cheating bits...but just dont want to anyone else to get an advantage 8)
Snett - aim to be there late afternoon to early evening - depends on how work goes. I am going to try and get our team mate Garry to grab a garage if he can. Give me a call in the afternoon and will let you know....
unless of course you fancy being gaurd dog for a garage to save us one from the mad scrum :lol:
chunkytfg
15-03-06, 06:30 PM
The other bits are top secret but might tell you if you promise to keep quiet!. BTW they arent cheating bits...but just dont want to anyone else to get an advantage 8)
Snett - aim to be there late afternoon to early evening - depends on how work goes. I am going to try and get our team mate Garry to grab a garage if he can. Give me a call in the afternoon and will let you know....
unless of course you fancy being gaurd dog for a garage to save us one from the mad scrum :lol:
fair enough on the top secret bits.
well i'll be working thursday and be leaving about 2pm so chould be up there about 4pm ish. If thats is early enough then by all means i'll try and secure you one. if not then i'll look out for you on the motorway and meet you up there.
However i dont actually have your's or steve's mobile numbers so contacting you will be tricky. :lol:
Also is there anything that might be useful for me to bring along? Perhaps a small set of tools so that there isnt a mad rush for the same spanners as we all franticly change wheels etc etc?
Fab lookin machine. i is liking it lots :twisted:
Anyway have you told us the ins and outs of the GSXR front end conversion?
I woul dlove to hear about it, and did you fit a gsxr rear shock too?
chunkytfg
15-03-06, 09:21 PM
Fab lookin machine. i is liking it lots :twisted:
Anyway have you told us the ins and outs of the GSXR front end conversion?
I would love to hear about it, and did you fit a gsxr rear shock too?
I'm not trying to speak for sarah but she isnt online atm so i'll tell you what i know.
The GSXR front end was relatively easy to fit IIRC. I think the only real modding to be done was having to turn the spindle down a bit to fit in the gsxr yokes.
The shock on the bike is a ohlins unit originally fitted for a K3+ bike but it has a few mods done to it that jacks it up slightly. steve did tell me about it but i cant remember. :oops: :roll:
Magic looking SV Sarah definitely will be looking out for you at Snetterton next week , I'm really looking forward to the Thunderbike Class not sure how close the racing will be but defiantly looking forward to the range of bikes.
chris
Mike1234
16-03-06, 07:28 AM
The GSXR front end was relatively easy to fit IIRC. I think the only real modding to be done was having to turn the spindle down a bit to fit in the gsxr yokes.
Should've just gone straight in...
SV650Racer
16-03-06, 12:19 PM
Yes it did go straight in. On the pointy models the yoke stem and bearings are the same.
For the road it would require a little more work, IE you will need to adapt a speedo sensor as the GSXR does not have provision for one on the forks.
The forks are stock at the moment and work very well. They produce a good feel and only a slight judder can be felt under very hard breaking which will be sorted when the internals get done. Although it could be due to the discs as i bought them 2nd hand.
The forks are slightly shorter than the SV ones so the bike turns well and holds a line better exiting corners such as druids.
And the brakes......a million times better than those on the SV!!!
Ceri JC
16-03-06, 12:34 PM
Looks v. nice. Something I noticed when looking a dyno graphs of the 650 (stock), 700 and 750 (big bores) was that the 700 one looked really smooth useable (and the reason Performance Bikes opted for the 700 over 750 when making their SVR). Is that what you've found the power delivery to be like?
northwind
16-03-06, 01:46 PM
For the road it would require a little more work, IE you will need to adapt a speedo sensor as the GSXR does not have provision for one on the forks.
Not hard to do though. Well, if I can do it ;)
butterboy
16-03-06, 11:44 PM
Finally have got my SV650 done and ready for its first race weekend.
Just to let those know that are interested in modding their SV650 the outcome of a winters hard work etc has been well worthwhile.
The 700cc kit and balanced crank has made a big improvement in grunt. 80BHP at the rear wheel (71 before) - on the series dyno which is accurate - expect 85 on a dynojet dyno - . It now drives a hard as you like and revs very quickly. Still more to come as i am taking it step by step with the mods to develop a rideable and reliable bike without having to go to some extremes.
The slipper clutch has made the biggest difference, allowing my braking and downshifting to be done alot later, the bike is more stable and a hoot to ride!.
The GSXR600K4 front end...fab!. Brakes are excellent, it turns better and holds a line well. The forks are std spec too so after some revalve work they should be awesome.
Not practical really for the road or a small budget but i reckon Suzuki should make this bike.... :lol:
http://img67.imageshack.us/img67/4050/brands33wk.jpg
http://img67.imageshack.us/img67/3228/brands17gl.jpg
Very nice paint job, good looking bike.
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