Ultimate F3?

[feral1]

Mynameis: a Aprillia RS250 would get eaten alive. You'd need to do a lot of tuning and have it right on the verge of blowing up to get a RGV motor to produce enough power to be top five in F3 in NZ.
Some people have got nice ones tho Steve74 on this site has got a great RGV SP, demon in the Grey street races
K14: you say the RSVX engine might be a bit to much for the Tigcraft frame. Perhaps. But it probably should hold together sweet. If rumours are rightwe'll find out next year as J. Easton is getting one together. I suspect the biggest concern won't be the frame stayin together but the RSVX motor once you tune the nuts of it. I think a guy in our Canterbury club who ran a full motard one last year had a bit of trouble with the motor.
Should be an awesome bike tho, and we all know Mr Easton is fast.. aye..
I think Cam Horgan is equally thinking about a F3 special...
Enjoy the rest of your Nats Kirk, you're doin it man. Good to see you charge at Manfield. Bring on Puke.
Feral

[gav]

How about something like this? Uses a Kawi ER6N motor!
95 hp and weighing 95 kg?
http://www.3upracing.co.uk/blogs/index.php?blog=2

[mynameis]

How about something like this? Uses a Kawi ER6N motor!
95 hp and weighing 95 kg?
http://www.3upracing.co.uk/blogs/index.php?blog=2

Isn't that a inline 4 600 though?

[svr]

SV 650 is a plug and play bike, especially with the new pro-twins class. buy, strip, wire and race. There was even one with a plate still on the back at nations in the weekend going faster than I Imagine a similar cost RS250 would muster with the same rider.

That was me - interesting discussion for me as I raced 250's 89-93 and did basically the same lap-times as now on the SV - I think they're similar in speed but the 250's do blow up and also, high-side you pretty quick. SV's are user-friendly and mine hasn't so much as burnt oil or had me out of the seat in 30,000 kays (6,000 on the track), so thats nice. You could build a competitive F3 250 (need another 2 seconds a lap, 250's did 15s @ manfield - a power track - on slicks back in '93) but it would cost and riding wise it would be `edgy' and hard to get that last second out of it. Also racing slower but light, superior handling bikes can be a frustration exercise when racing faster bikes taking different lines etc.
Aprilia 450 v-twin in a factory racing (GP) RS 250 chassis I reckon... - 110kg 70hp $$$$$$ That would be nice to ride.
Cheers,
Cookie

[roogazza]

So the difference between an F3 SV and a pro Twin SV is what a second ? who has the lap records for both at Manfeild and what are they ? (suppose I should ask Glen ?)
Apart from motor they are the same ? (ok some have better forks) G.

[svr]

So the difference between an F3 SV and a pro Twin SV is what a second ? who has the lap records for both at Manfeild and what are they ? (suppose I should ask Glen ?)
Apart from motor they are the same ? (ok some have better forks) G.

From memory:
F3 Terry Fitzgerald 1:12.8
PT Karl Morgan 1:14.8
Some tracks in the SI it was closer (check out mylaps.com)
Interesting: 250 production '93/94 (w/slicks) about 1:15.5 I think (Ramage and Young)

[roogazza]

From memory:
F3 Terry Fitzgerald 1:12.8
PT Karl Morgan 1:14.8
Some tracks in the SI it was closer (check out mylaps.com)
Interesting: 250 production '93/94 (w/slicks) about 1:15.5 I think (Ramage and Young)

Thanks SVR , bit out of touch with records.
Ramage ??? really !! we used to call them the damage brothers !!! Gaz.

[deanohit]

Isn't that a inline 4 600 though?

Nope, 650 parrallel twin.

[Chops]

Until I logged in and saw the pic, I thought you were all talking about the Spagforth bike, with the Aprilia RS chassis and SXV550 engine. Very sexy, all speccy suspension bits...
I saw a post by the guy who built it in a forum. The first time they took it out, it went really well, with a European international rider and a litle setup, it got to within a second of the same guy on his TZ. The second time they took it to the track The engine blew up so thoroughly, the only salvagable part was the rear cylinder head...

[codgyoleracer]

So the difference between an F3 SV and a pro Twin SV is what a second ? who has the lap records for both at Manfeild and what are they ? (suppose I should ask Glen ?)
Apart from motor they are the same ? (ok some have better forks) G.

Hey Gaz,
Primary difference in lap time between the two in order of importance: Brakes are way better on the F3 bike, engine power is +10 - 15%, weight is up to 20kg lighter, front suspension parts are open on the F3 also.

I rode a pro-twin engined Sv at Pukey nats this year (my F3 bike had a broken engine), with my suspension etc fitted & got to within 1.5 seconds of my best time on my F3 bike. Doesnt sound alot -but at Pukekohe you go looooong way on the back straight distance wise in 1.5 seconds aye.

Glen