SV650 race mods

[BornToLean]

You will struggle to win the AMCC protwin class because it is open to any capacity protwin ............

So, if I understand this correctly, MNZ come up with a class that keeps the costs down, has machinery of equal performance and will provide some close racing - BUT THEN AUCKLAND would rather have a more traditional class where the biggest most expensive bike wins every time?
All of a sudden people start to lose interest, again.

If I could be any more cynical I would suggest that someone with influence has a large capacity twin they want to race!

[flame]

- BUT THEN AUCKLAND would rather have a more traditional class where the biggest most expensive bike wins every time?
All of a sudden people start to lose interest, again.

If I could be any more cynical I would suggest that someone with influence has a large capacity twin they want to race!

I guess to be fair.....the 650's are blitzing in F3, so having their own class will give the lesser powered older bikes their own chance to race similer rated oposition. Unlike 1000cc v-twins which are comparitively lower powered than their main opposition in their only eligible class ( F1 or Superbike )as bears don't seem to take it to the racetracks in the north island . Litre twins will hopefully get their own class too one day

[Keystone19]

So, if I understand this correctly, MNZ come up with a class that keeps the costs down, has machinery of equal performance and will provide some close racing - BUT THEN AUCKLAND would rather have a more traditional class where the biggest most expensive bike wins every time?
All of a sudden people start to lose interest, again.

If I could be any more cynical I would suggest that someone with influence has a large capacity twin they want to race!

To be fair to AMCC their Protwin class has been running a fair bit longer than the MNZ proposed Protwin650 Championship class. Time will tell if the AMCC will change to just protwin650 but I actually hope they stick with an open Protwin class for a bit longer as a) there are not yet enough protwin 650s racing in Auckland to make a stand alone class, and b) there is no other class for the larger protwin/usually BEARS bikes to race in Auckland other than F1 and F2 where they are not usually competitive (see Flame's post below).

I guess to be fair.....the 650's are blitzing in F3, so having their own class will give the lesser powered older bikes their own chance to race similer rated oposition. Unlike 1000cc v-twins which are comparitively lower powered than their main opposition in their only eligible class ( F1 or Superbike )as bears don't seem to take it to the racetracks in the north island . Litre twins will hopefully get their own class too one day

Kind of. If you look at the results from the National Series you will see that it was pretty evenly matched between SV650s, modified 450s and home built stuff at the top end. Those top end SV650s have had a fair amount done to them to make them competitive at the top end. Stuff that will be illegal under the protwin rules.

[feral1]

....If you look at the results from the National Series you will see that it was pretty evenly matched between SV650s, modified 450s and home built stuff at the top end. Those top end SV650s have had a fair amount done to them to make them competitive at the top end. Stuff that will be illegal under the protwin rules.

Hey Jill,

do you recon a few of the moderatly worked SV's will spec there bikes back to Pro-Twin regs??
i.e. how many of those fully worked SV's will stay with F3?
Whats your plans, going to carry on in F3?

Feral
(Eric)

[BornToLean]

To be fair to AMCC their Protwin class has been running a fair bit longer than the MNZ proposed Protwin650 Championship class.

Oops, didn't know that. Appologies to AMCC.
Head pulled in again.

[Clivoris]

I guess to be fair.....the 650's are blitzing in F3, so having their own class will give the lesser powered older bikes their own chance to race similer rated oposition.

Those hot-rodded 650's will still be in F3. My understanding is that protwin 650 is about giving riders an affordable step between streetstock and supersport. Us fullas on little old mildly tuned 400's will need to have bucket loads of talent or choose to race amongst ourselves. Still, cheap (relatively) racing is cheap racing.

[evol mas]

rubish jill you put a quality rider (stroudy , sherifs ect )on a top end pro twin bike and he could win eazy!! ther isint that much difference between a protwin650 bike and a f3 650

[Clivoris]

rubish jill you put a quality rider (stroudy , sherifs ect )on a top end pro twin bike and he could win eazy!! ther isint that much difference between a protwin650 bike and a f3 650

Craig Shirrifs could lap me round Manfield on a BMX with only one pedal.

[Keystone19]

Hey Jill,

do you recon a few of the moderatly worked SV's will spec there bikes back to Pro-Twin regs??
i.e. how many of those fully worked SV's will stay with F3?
Whats your plans, going to carry on in F3?

Feral
(Eric)

I think as Clivoris says above, those guys in F3 racing modified SVs will not be returning their bikes to protwin spec. I have thought long and hard about it and have decided to stick with my current F3 spec SV for the coming season. If I race protwin it would be on a new bike not my current SV. There's a range of reasons for this and I'll be happy to PM you with those if you're interested...

rubish jill you put a quality rider (stroudy , sherifs ect )on a top end pro twin bike and he could win eazy!! ther isint that much difference between a protwin650 bike and a f3 650

Lol! Possibly that's true Sam. Kyle Key did pretty well on a stock SV against the likes of Terry Fitzgerald and Andy Bolwell although his bike is still not protwin spec. It would be great to see any of those top guys go head to head with the top SV riders on modified bikes in F3 to see if what you say is right. There is only about 15hp between a protwin spec bike and a modified one...

[GSVR]

rubish jill you put a quality rider (stroudy , sherifs ect )on a top end pro twin bike and he could win eazy!! ther isint that much difference between a protwin650 bike and a f3 650

So how much difference would the bikes have if say the same rider rode each. ie Rossi rode Andy Bolwells 450 then say Kyle Keys bike?


And just a question for everyone thats read the rules...

Do you have to retain the original subframes? (Just incase I can't read)

[codgyoleracer]

I dont realy see how the F3 class will "die öut" - as it accomodates such a broad range of machinery currently. It also is the only "F" class left, meaning that riders have the ability to tootle with many different aspects of the machine & not abide to "production based rules". Other than 125gp the F3 class is the only class that allows cart-blanche & leading edge (sometimes trial by error) development.
The ProTwins class fits in nicely as a starter class & accomodates stock 650 four valve twins of which there are a few choices on the market. These should be relativly affordable to build. Although like any "production class" finding additional performance when restricted by rules , can often be far more expensive & require specialised mods. The ones that want to win will be likely to always push the envelope in this respect.
ProTwins guys should try to monitor themselves & try to restrict non stock components from creeping into the class. As/If this happens & machines become more & more "developed within the rules" - an outsider looking into the class begins to view it as difficult to enter & be competitive.

As far as how competitive the same rider would go on a Pro-Twin versus F3 Twin machine - , the F3 Twin should win every time. This assumes that both bikes have been developed to a reasnoble level within the rules for its class.

An experienced racer on a Pro-Twin bike would be very likely beat an average rider on a good F3 bike though. This is shown in other clases where fast 600 riders lap quicker than 1000cc machines quite often.

[Keystone19]

Wot he said ^^^^^^

[Billy]

Firstly Garry,Yes you can change the subframes so long as they mount in the same place as the original.Evol mas you should never underestimate the ability of any rider especially wily old campaigners like Andy Bolwell and Terry Fitzgerald and Im sure both Craig &Stroudy could definitely give the aforementioned a hurry up at 1 or 2 tracks I think they would struggle to win a national championship over 5 rounds on a pro twins bike in formula 3.If you think back 4 months neither Stroudy or Craig could win a championship in a class where they had competitive machinery(Superbike & 600).Then if you through into the mix Jason Nairn,Glen Williams,Jason Easton,Jill Clendon all on faster F3 machinery I think it would be unrealistic to expect any rider too win F3 on a pro twins bike

[Billy]

I dont realy see how the F3 class will "die öut" - as it accomodates such a broad range of machinery currently. It also is the only "F" class left, meaning that riders have the ability to tootle with many different aspects of the machine & not abide to "production based rules". Other than 125gp the F3 class is the only class that allows cart-blanche & leading edge (sometimes trial by error) development.
The ProTwins class fits in nicely as a starter class & accomodates stock 650 four valve twins of which there are a few choices on the market. These should be relativly affordable to build. Although like any "production class" finding additional performance when restricted by rules , can often be far more expensive & require specialised mods. The ones that want to win will be likely to always push the envelope in this respect.
ProTwins guys should try to monitor themselves & try to restrict non stock components from creeping into the class. As/If this happens & machines become more & more "developed within the rules" - an outsider looking into the class begins to view it as difficult to enter & be competitive.

As far as how competitive the same rider would go on a Pro-Twin versus F3 Twin machine - , the F3 Twin should win every time. This assumes that both bike have been developed to a reasnoble level within the rules for its class.

An experienced racer on a Pro-Twin bike would be very likely beat an average rider on a good F3 bike though. This is shown in other clases where fast 600 riders lap quicker than 1000cc machines quite often.

Yeah,So anyway Glen.What tootling have you done just so we know what to do to our SV?

[codgyoleracer]

Hi Billy, The pretty yellow & purple one has had its last race. The even prettier silver bullet is "under development" & its kinda like James Bond 007 - I'd have to kill ya if I told ya........
Bottom line for me though is I want it to be reliable & cheap to run - am getting to tired & old to be playing with engines all the time of feeding rubber to Superbikes. Hey Billy , I need another set of glass as well.