Q about GILERA DNA

[r3ar_vi3w]

hello boys,i am new here
i have gilera dna and i want to make it fasttt
I am looking for yours expert advise and opinion for choosing right cylinder and crankshaft.For now i am hesitating which parts to choose???:
1-POLIN -- EVO 293 evr
2-METRA KIT--pro race 245 evr
3-MALOSSI --MHR team repelika 300 evr

Crankshaft : Hebo REVOLUTION 165 evr http://scooter-center.com/catalog/im...big10589-0.jpg

[tiba_karotsu]

first of all what performance you want from your scooter? where will you use it most? finally how much are you willing to spend?

[r3ar_vi3w]

well all of us wants fast economical(fuil and oil) strong scooter(engine) so i want thеse thing too as much as is it possible.
I will use it only on the rоads,but when i am riding whit my scooter friends i wonna be fastest . for now i have ~~500 eur

[tiba_karotsu]

Originally Posted by r3ar_vi3w

well all of us wants fast economical(fuil and oil) strong scooter(engine) so i want thеse thing too as much as is it possible.
I will use it only on the rоads,but when i am riding whit my scooter friends i wonna be fastest . for now i have ~~500 eur

nothing much we can do with 500 euro nowadays so we'll see what we can scrounge around with that amount. by your words a midrace setup is what will fit your application.

[r3ar_vi3w]

I know that money are little but this is just for cyl. and crank. next month when i get my pay i will give again around 500eur for whАt is necessary,so i just want sоmеthing like short review(stok max HP? strength any defects?) about 1-POLIN -- EVO
2-METRA KIT--pro race 3-MALOSSI --MHR team repelika because i don't have needful experience and your choose in the end

[tiba_karotsu]

Originally Posted by r3ar_vi3w

I know that money are little but this is just for cyl. and crank. next month when i get my pay i will give again around 500eur for whАt is necessary,so i just want sоmеthing like short review(stok max HP? strength any defects?) about 1-POLIN -- EVO
2-METRA KIT--pro race 3-MALOSSI --MHR team repelika because i don't have needful experience and your choose in the end

if you want a reliable race setup for the street;

Polini Evo2 70cc kit
MHR Team exhaust pipe or Polini Evo exhaust pipe
Polini Evo2 crankshaft
Polini Evo SS9 vario
Polini or Malossi Overrange rear pulley
Delta clutch
Wing bell
gear kit
Dellorto PHBG21 carb
VForce3 or VL13 reedvalves

power output ranges from 15hp to 21hp depending on what modifications you can do to the cilinder & carters.

[r3ar_vi3w]

You are sure about the cyl. kit? polini EVO 2 is it the best 70cc? what about the MHR team replika (the samе price is) or MEtra kit pro race?(just 245 eur)

EVO 2 - http://scooter-center.com/catalog/pr...3725c85881cddd

MHR TEAM REP.- http://www.scooter-attack.com/shop/a...0&l=navigation

METRA KIT PRO race- http://scooter-center.com/catalog/pr...3725c85881cddd

Do you like this crank. for maybe polini EVO 2? http://www.scooter-attack.com/shop/a...0&l=navigation

21mm isn't it small 24 maybe or?

[tiba_karotsu]

Originally Posted by r3ar_vi3w

You are sure about the cyl. kit? polini EVO 2 is it the best 70cc? what about the MHR team replika (the samе price is) or MEtra kit pro race?(just 245 eur)

EVO 2 - http://scooter-center.com/catalog/pr...3725c85881cddd

MHR TEAM REP.- http://www.scooter-attack.com/shop/a...0&l=navigation

METRA KIT PRO race- http://scooter-center.com/catalog/pr...3725c85881cddd

Do you like this crank. for maybe polini EVO 2? http://www.scooter-attack.com/shop/a...0&l=navigation

21mm isn't it small 24 maybe or?

for your application maximum power shouldn't only be your concern but durability (longevity) & reliability as well.

i chose the Evo2 over the Team rep as the cylinder doesn't wear out rings & piston as fast as a bridged exhaust like the Team rep has, you want something that will last a very long time between piston & ring changes. the Evo2 is the best for that application.

think of your engine setup as that of an endurance racer, let's face it, you're not going to use your scooter for sprint racing right? if you did then max power is your goal but durability & reliability will be sacrificed.

[r3ar_vi3w]

You are absolutely right about EVO 2 this is what i need realy,so for now i will order this parts and then EVo exhaust right?something else?
http://scooter-center.com/catalog/pr...ducts_id=10234

http://scooter-center.com/catalog/pr...oducts_id=1452

http://scooter-center.com/catalog/pr...=4_15_173_1259

http://scooter-center.com/catalog/pr...oducts_id=7178

http://scooter-center.com/catalog/pr...oducts_id=9143

http://scooter-center.com/catalog/pr...ducts_id=10589

http://scooter-center.com/catalog/pr...=4_15_173_1261

Do you know after how many kilometers the EVO will reduce his power?

[tiba_karotsu]

Originally Posted by r3ar_vi3w

You are absolutely right about EVO 2 this is what i need realy,so for now i will order this parts and then EVo exhaust right?something else?
http://scooter-center.com/catalog/pr...ducts_id=10234

http://scooter-center.com/catalog/pr...oducts_id=1452

http://scooter-center.com/catalog/pr...=4_15_173_1259

http://scooter-center.com/catalog/pr...oducts_id=7178

http://scooter-center.com/catalog/pr...oducts_id=9143

http://scooter-center.com/catalog/pr...ducts_id=10589

http://scooter-center.com/catalog/pr...=4_15_173_1261

Do you know after how many kilometers the EVO will reduce his power?

for the crankshaft i'd rather get the Polini Corsa or Evolution since they are basically the same price, i would trust Polini over Hebo anytime.

as for the exhaust it is well known that the best exhaust pipe for piaggio is the MHR Team pipe, if that will fit the Polini Evo kit then by all means go with the MHR Team pipe, if not then the Polini Evo maybe the next best thing.

well it depends on the oil that you will use but if you'll use high quality racing oil like Motul 800 or Kart Racing 2T, Repsol Racing 2T i think you will get very long life with the piston & rings. check the piston ring end gap clearance every 2500kms, if it exceeds 0,70mm then you should replace it. that goes the same for the piston, if the diameter of the piston skirt is worn down by -0,10 to -0,15mm from the original size it is time to replace it.

btw with this setup you must no't use the oil pump, go with premix at 4% oil per liter of gas.

[r3ar_vi3w]

From my karting expеrience i use only Castrol kart 997 it is for arоund 22.000 r.p.m. when i try the oil on my bike it doesn't feel good,burning process was too slow and on the top of piston there was 'tan' so now i use only Castrol POWER 1 racing for 15.000rpm i know about the oil pump but is it absolutely necessity?

[tiba_karotsu]

Originally Posted by r3ar_vi3w

From my karting expеrience i use only Castrol kart 997 it is for arоund 22.000 r.p.m. when i try the oil on my bike it doesn't feel good,burning process was too slow and on the top of piston there was 'tan' so now i use only Castrol POWER 1 racing for 15.000rpm i know about the oil pump but is it absolutely necessity?

it is bcoz you have a stock engine, a race tuned scooter engine will be very different, i use Motul Kart racing oil on my dragscooters & the MHR Team Beta Ark i built for a friend for track racing, this stuff is very good. i never did like Castrol, it builds up carbon too much too quick & doesn't have the lubricity of Motul or Repsol, in my experience we have more customers coming in for rebuilds using Castrol oils than Repsol & Motul combined.

[r3ar_vi3w]

Possibly, and now i am whit Malossi sport cyl. and Gianelli exh. Monday i will order my thing

[r3ar_vi3w]

first part of my order come's here today!

[r3ar_vi3w]

scooter-center suks.... thеy send me wrong belt.................shorter

[tiba_karotsu]

shit happens man, return it for a replacement.

[r3ar_vi3w]

no way ... it is used but i am fine now i buy new one and it is ok but now i have problems whit POlINI Super speed vario... weighti are just 2.1 and 2.5 gr. i order and receive 4.5 but they are still light. the heavyest are 5.0 gr. so i have two options * to buy 5.0 gr ** to put other spirng (soft)for the speed driver because now i am with purple malossi (hard)???

[tiba_karotsu]

try the next softer spring, i am surprised that the 2.5g rollers didn't work for you. with 4.5g you should be under revving right now with your current setup, something must be binding up in your tranny.

[r3ar_vi3w]

Originally Posted by tiba_karotsu

try the next softer spring, i am surprised that the 2.5g rollers didn't work for you. with 4.5g you should be under revving right now with your current setup, something must be binding up in your tranny.

today i tested a lot so with the original spring is a lof better on max speed 5-10km/h ! the start is slower but just a lit :] i can't expain my self why R.P.M. whit this spring are lower??? with 1.000rpm lower = more max speed so now i have to put middle spring to pull of max from eng.? or light rolls? and tomorow i will put the new carb

[r3ar_vi3w]

tiba please give me some basic set up about the carb... it is dellorto PHBG 21 racing ds Main jet: 92, pilot jet: 50, needle W7 air screw 1,5 2,5 turns (basic)? needle possiton and air box?! new one or like mine now?

[tiba_karotsu]

Originally Posted by r3ar_vi3w

today i tested a lot so with the original spring is a lof better on max speed 5-10km/h ! the start is slower but just a lit :] i can't expain my self why R.P.M. whit this spring are lower??? with 1.000rpm lower = more max speed so now i have to put middle spring to pull of max from eng.? or light rolls? and tomorow i will put the new carb

the reason is with the malossi purple spring you need heavier rollers to overcome the stiffer spring so when you switched to the softer stock spring the rollers you have on right now can easily overcome the stiffness & hence the belt travels much higher on the face of the vario.

if you are suffering from slow starts it is bcoz of weak clutch springs, too heavy rollers or both. try stiffer clutchsprings fist then lighter rollers next.

[tiba_karotsu]

Originally Posted by r3ar_vi3w

tiba please give me some basic set up about the carb... it is dellorto PHBG 21 racing ds Main jet: 92, pilot jet: 50, needle W7 air screw 1,5 2,5 turns (basic)? needle possiton and air box?! new one or like mine now?

for best performance run it with a Polini airbox pod filter & then get a set of mainjets from 80 to 90 in these sizes (80 82 85 87 90), for the pilot jet get smaller sizes from 38 to 45 (38 40 42 45). needle position start with the 2nd groove from the top, air screw (i call it pilot screw) set at 1 turn out.

[r3ar_vi3w]

Originally Posted by tiba_karotsu

the reason is with the malossi purple spring you need heavier rollers to overcome the stiffer spring so when you switched to the softer stock spring the rollers you have on right now can easily overcome the stiffness & hence the belt travels much higher on the face of the vario.

if you are suffering from slow starts it is bcoz of weak clutch springs, too heavy rollers or both. try stiffer clutchsprings fist then lighter rollers next.

mhm i will try 5 gr. rollers? bcoz on max speed i rеach 10.000-10.500 rpm max! (in good weаther) on a straght or down hill it's the same... don't forget that i have malossi gears 14/48

[r3ar_vi3w]

Originally Posted by tiba_karotsu

for best performance run it with a Polini airbox pod filter & then get a set of mainjets from 80 to 90 in these sizes (80 82 85 87 90), for the pilot jet get smaller sizes from 38 to 45 (38 40 42 45). needle position start with the 2nd groove from the top, air screw (i call it pilot screw) set at 1 turn out.

mhm ok, i will order polini filter but for now with original air box 21 carb or 17.5 ... the same (it is runing with out cover of the air box just with sponge)bcoz there is a lack of air