RGV racebike makeover

[Whosthedaddy]

The cat that got the cream

https://img.photobucket.com/albums/v139/two_smoke/ebay%2015th%20january/readytogo.jpg
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[2Smoke]

[Deano]

what mixture do you use on track mate? as you would need massive jets for pure meth. if you do have did you manage to buy bigger enough jets or drill themselve? what sort of difference have you noticed from using meth and how does your engine cope with it.

soz but I am considering setting up my bike (for the track) to run on meth and would appreciate your experience with it.

thanks dude.

[2Smoke]

[NC30UK]

Have you got modified heads on it to run avgas?

[2Smoke]

Yes, .8mm squish, straight plug heads (std the plugs come in at an angle), tz style combustion chamber. Also running an O ring instead of a head gasket
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Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

[Deano]

because for optimum detaonation/burn for petrol is 1litre of petrol to 13 litres of air. methanol is something along the lines of to every litre of meth 5-8 litres of air so if you run standard jets it will run very lean.

I do understand it burns slower and the ignition has to be advanced by 6 degrees, well probably not that much as I'd imagine every engine is different.

I was thinking of running superleaded with a 30-35% nitro methane as it carries alot of oxygen and its it only needs something like 3-5 litres of air to every litre of nitro methane.

I've got a nc30 BTW so only assuming it works the same for 2 strokes.

I've read from the 4stroke performance tuning book im reading at the moment that meth can give a 10-15% increase in power but that was from cars and smaller the engine the less effect it will have. so for a 250 it mite not make a difference

[2Smoke]

Right we are talking 2 different fuels here then! I use Avgas, not methanol!

I have an nc30 too
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Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

[NC30UK]

Isnt avgas just very high octance fuel?
something like 105 or 108 instead of the normal 95/97.
Takes more compression to get it burning hence the modified heads, but it gives greater power when burned.

Have you advanced the timing at all?

Overall that bike looks VERY sorted, you could win championships on a thing like that!

[2Smoke]

[Andy C]

very nice, i expect lots of racing pics to be posted!!!

hes a pic resized so you can use it as avator (pic below your name)

Im at work very bored hense why i did it, im not that sad in my free time!!
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99 RS125 --> 02 SV650s --> 03 Speed Four --> 92 RXS100 --> 93 CB400sf --> 01 CB600f Hornet

[Keith]

Absolutely lovely project, 2smoke. Great read and love the step by step pictures. I'm in the process of finishing my Aprilia RS125 track bike, that should be sorted within the next week. Then its a case of sending away my ACU application and I'm good to go.

Best of luck with the new season, you deserve to do well after all the effort you've put into the bike. Hats off to you my friend.
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Aprilia RSV Mille R Edwards Replica - Aprilia RS250 - Suzuki GSXR600 Supersport Race Bike

[2Smoke]

Thanks guys, well the bike survived the horrendous weather of the weekend.. some pics of it shod with the wets..
https://img.photobucket.com/albums/v139/two_smoke/ebay%2015th%20january/afterrace3.jpg
https://img.photobucket.com/albums/v139/two_smoke/ebay%2015th%20january/afterrace2.jpg
https://img.photobucket.com/albums/v139/two_smoke/ebay%2015th%20january/afterrace1.jpg

roll on the next race meeting
____________________
Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..

[cc123]

Thats a lovely bike mate, excellent work
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Old bikes >>> https://www.bikepics.com/members/cc123/

[2Smoke]

Thanks! It will probably end up getting cartwheeled down a racetrack soon and I will start all over.. but hey thats the fun of racing..
____________________
Currently in the stable.. '89 TDR250, 86 NSR250 '79 350LC, '79 DT175MX, 82, Pasola, '98 R1, '95 Speed Triple.. all of them total sheds..