prove-tuning:s sprinter

pr0ve

Swedish tuner
prove's sprint NRG

It's back, with better appearance and more power!


Visit: www.provetuning.com




Setup:


Engine:

Block: Piaggio "new", tuned (P T & JS)
Cylinder: Polini evo 70cc, tuned (P T)
Crank: Polini evo
Bearings: Stage 6 teflon
Reedblock: MHR VL13
Exhaust: Hebo racing 4
Ignition: HPI 2004
Ignitioncable: NGK race
Carb: IBEA 24mm Kartcarb
Intake: A short one for kartcarbs! ;)
Airfilter: Kartfilter

Fuel:
Methanol with 25% nitromethan


Variomatic:

Vario: MHR2000 (OR)
Pullies: MHR (OR)
Belt: MHR (OR)
Clutch: MHR Delta clutch (Lighted, "tuned" P T)
Clutch bell: MHR wingbell
Primary gear: Stage6 15/38



Other:
Lighted frame
Aerox cooler
Fastflow gasoline filter
Custom styled plastic
Progrip handles
Stage6 revcounter/water temprature
Stage6 280mm disk
Stage6 kickstarter
Stage6 oilscrew
MHR break pads front
MHR break pads back
Downhill steerholder
M-steer




Before:




Moppe1-hwj.jpg


moppe2-gvc.jpg







Plastic:





Project:

Back

SA500098.JPG


SA500138.JPG


SA500144.JPG



Result:

Bakkapa10.JPG


bakkapa12.JPG






Project:

Front

Framkapa1.JPG


Framkapa3.JPG


Framkapa4.JPG



Result:

Framkaapanklar.jpg













Pics from gbgmeet:

gbgmeet1.jpg


gbgmeet2.jpg


gbgmeet3.jpg





Engine parts



Hebo racing 4:

rppppre.jpg


roerjaddajadda.jpg




The IBEA Kartcarb:

Forgasare2.JPG


SA500037liten.jpg


SA500040liten.jpg







Update:

The color selection! (Look at the matching box it's standing on)
It's going to be yellow front, black in the middle, yellow back and black plastic inside! Now let's look at the pics!

SA500015.JPG


SA500012.JPG




Update:


I've done some cylinderwork for maximum flow, I don't know how many who done this but I'll hope it will work fine! ;)


wayen.JPG


waytre.JPG


wayfyra.JPG



Update:

The cylinder is now done, here's some pics! And yeah the VL13 is almost done! ;)


Cylinder3.jpg


Cylinder4.jpg



VL13

VL13.jpg






My piston compared agains a orginal!

STD piston:

Polini%20evo%2070cc%20zuigers%2047.6.jpg




My piston:

Piston1.jpg


Piston3.jpg



Update!

New parts! Now I will be able to make it stop!

break-qvc.JPG


break1.JPG


Polini evo crank, mhr team speed needle bearing, stage 6 teflon bearings, new clutchbell:

speed-xyg.JPG


Some styling parts!

style-lzf.JPG



And here's a pic of how my reedblock is going to sit, at this angle it should be possible to get more fuel down (and faster) cause the gases wont have the crank in the way.
This is my first drawing:



23-xxg.jpg




Update:


Polished exhaustport!
polering.jpg



Update:

Preparation for moving the reedcage!

blockdraw1.JPG


blockdraw2.JPG



Update:


While we're waiting for the new block to arrive we started to work some more at the plastic!

SA500075.jpg



Update!


Finaly! The block is on the way to the cnc-machine and should be home in a week (week 7), so in about 2-3 weeks its time for a teststart!






/Prove Tuning
 
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Tinne said:
Nice carburator. Nice matt paintjob.
What has bram got to do with al this then?

Well, he came up to sweden to meet me and so we could go to a meeting, he also helped me tune the cylinder for the first time and answerd _some_ questions for me. ;)
So next year its my turn to come down to holland! Hope to see ya all then!

Anyway here's a pic at him, I hope he dosent hit me because of publishing this! :D
Some dude came up and took a photo of him eating at GBGmeet!
Bramdude.jpg
 
Last edited:
pr0ve said:
Well, he came up to sweden to meet me and so we could go to a meeting, he also helped me tune the cylinder and answeard _some_ questions for me. ;)
So next year its my turn to come down to holland! Hope to see ya all then!

Anyway here's a pic at him, I hope he dosent hit me because of publishing this! :D
Some dude came up and took a photo of him eating at GBGmeet!
http://files.upl.silentwhisper.net/upload4/Bramdude.jpg



haha, it was I who took that picture :p AND I didnt came to take a photo of bram, it was actually ment for the scooter ;)




// Xaniz
 
Xaniz said:
haha, it was I who took that picture :p AND I didnt came to take a photo of bram, it was actually ment for the scooter ;)




// Xaniz


=D You got a funny pic of him anyway! ;)
I've got a little update, been tuning some more... Pics comming soon!
 
Last edited:
Pr0ve: Nice body work you did!!!...congratulations....a good job.

How fast is your scoot now?

Question: I have seen other guys using a Kart carb, does it performs better than the usual carbs (PWK, KOSO, Etc.)?
 
Mexicano said:
Pr0ve: Nice body work you did!!!...congratulations....a good job.

How fast is your scoot now?

Question: I have seen other guys using a Kart carb, does it performs better than the usual carbs (PWK, KOSO, Etc.)?


Yes I use a 29 mm slide kartcarb for the 2fast cylinder, it has got a much more better reaction time, and have a lot more power at the top revs (cause this carbs for 15-22000 rpm machines) they are really good from 13000 rpm! However they are much more problematic than the float bowl type carbs, vers sensitive, there is no idle, and the right POP up pressure is very important too. So this isn't good for daily usage!
 
Mexicano, yes ive noticed a diffrence. I felt that this kart carb got much more power than my last one (PWK) and the gasreaction is much better. (I dont have any proof of it but it felt like that...)
But im using a 24mm ibea.



Thanks browni!



Im comming with an update soon, ive been working on the scoot, going to get bearings for all gears and ive also done some clutchwork. Removing weights, using lightweight bolds etc and modified so i can have the springs in the highest possible mode. Its going to get intressting how much it can rev before it grabs the bell now.
 
MHRntt said:
Looks good staffan, take good care for the hebo pipe :)

Offcourse I will!
Im going to recoat it so it looks like it's brand new but I must say that it was in a very good condition when I got it!
 
Thank you Staffan we always took care of it.
I always drove the exhaust and it gives loads of torque. I think it looks pretty cool under your scoot.
Good look and can't wait to see the pictures.
Keep up the good work!
 
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