View Full Version : Arrow, LeoVinci and performance
01-09-2003, 07:54 PM
Someone who emailed me a tip concerning my fuel feed problems recommended going with the LeoVinci Handmade ZX pipe. He runs this set up: 20mm Mikuni, Arrow Kompress Lite, and TP 70cc kit (cast iron). I've got the same set up except for an aluminium TP 70cc kit. He said he changed to the Leo Vinci pipe and gained 8-10 mph. Top speed of 68. I've also got the TP variator, and I'm about to install the Delta clutch, the yellow rear pulley spring and a TP gear kit.
I don't want to run a full race set up (MHR cylinder, exotic pipe, crank.) I'd like to keep the crank stock for now. This is my daily transportation - need to keep it relatively reliable. My understanding is the LeoVinci's power is being developed around 10,000 rpm v.s. 9000 for the Arrow pipe. Any comments on the drastic increase in performance between pipes?
dont waste your money with overepriced arrow get yourself a yasuni or doppler c20 , i had loevinci before and i tell you if you can not afford c20 wait til you can , your cylinder is not ported so you will not see crazy RPM regardless of type of pipe
i raced with stock crank and never had a failure considering my set up kept revs over 9000 all the time ,if anything i have several spare crank i can send you
01-10-2003, 03:33 AM
wat r the crank makes and how much u looking for them?
now ive finished getting my prilia rs125 fixed next month and can try and get my benelli 491 working again. all i need is new CDI, and ignition coil-that works out at like £50 or around £80 for the malossi unit-so a new crank may be possible??
heres my current setup
polini sport 70cc
polini 4race exhaust pipe
dellorto 17.5mm carb
01-10-2003, 08:30 AM
i knew you'd never let your scooter rot in the garage so lets start anew but this time with an improved ignition system.:D
the cheapest, most popular crankshaft for the Jog here is the SEF 40mm stroker crank which is available in 10mm pin & 12mm pin. if you plan on getting an MHR AC race cilinder then get the 12mm pin but if you plan to keep your Polini sport cilinder then the 10mm pin is the way to go. it's full circle race crank so it will raise primary crankcase compression which adds more power plus the increase in duration will also affect performance and it will rev higher. it will only require adding thicker base gaskets so the piston won't go over the deck at TDC.
this crank is used with great success on 54cc drag scooters here so it will work as good on your heavyweight Benelli 491.
i can get the SEF crank for you at about $100 or less but shipping not included yet as i have to ask DHL for cheaper shipping options. reply ASAP if you're interested, let's finish what we started.:smokin:
01-10-2003, 12:28 PM
definately tiba im doing it but not till feb 10th now
what cilender u gonna get me then?
01-10-2003, 05:32 PM
well if you plan to get a little serious you should consider an MHR AC 70cc cilinder kit but it'll need the 12mm pin crankshaft, the MHR has a smaller exhaust port than an EVO AC 70cc so your For Race pipe may still fit it.
if then you still want more bang out of the MHR AC cilinder i can send you an MHR Team race replica exhaust which costs just half of the real thing plus they've copied it here down to the brackets & silencer, it can pass of as the real thing.:smokin:
01-11-2003, 02:37 AM
wats the cost of this stuff, maybe just an MHR rep would so me and the crank.
01-11-2003, 05:29 AM
sorry no MHR Replica cilinder is sold here only MHR race cilinders.
you'll have to wait till i go to the person where i get most of my stuff so wait till Tuesday morning when i post you the prices.
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