am6 tuning

[riejurs1]

what is the best crank, cylinder, carb, exhaust, reeds, etc for power for am6

[Browni]

Originally Posted by riejurs1

what is the best crank, cylinder, carb, exhaust, reeds, etc for power for am6

I think Metrakit crankshaft is one of the best for the Minarelli. The Metrakit 70 cc cylinder are very good, or the MHR Replica 80 cc, or if you want cheaper parts the Athena cylinder is quite good! A 21 mm carb+carbon membrans are necessary for the 70 cc tuning, you can buy the complete Malossi reed cage.
About the pipes.. I don't know what is really good, maybe the Yasuni and the Metrakit..

There is a 90 cc Simonini kit for the MInarelli AM6 too, with rotax exhaust ports, longer storke etc.. but you need other modifications too (engine machining, 24-28 mm carb etc..)

[riejurs1]

90cc
that sounds good
what machining is required?

what is a rotax exhaust port?
does this mean a special exhaust is needed

i am assuming the 90cc kit will be the fastest, yes?

[Browni]

Originally Posted by riejurs1

90cc
that sounds good
what machining is required?

what is a rotax exhaust port?
does this mean a special exhaust is needed

i am assuming the 90cc kit will be the fastest, yes?

Yes 90 cc Simonini is one of the best ! Rotax = one oval exhaust port and two auxilary exhaust port. Special exhaust i1n"t needed!

because of the londer stroke and bigger piston the crankcase needs larger bore!

[Swobber]

I know that the Metrakit Pro Race parts are very good for the AM6 engine.

One I know runs a RS50 with the following setup:
Metra Kit Pro Race krumtap - Crankshaft
Metra Kit Pro Race cylinderkit - Cylinder
Polini Evolution stempel - Piston
Metra Kit Pro Race udstødning, Limited Edition :-) - Exhaust
Metra Kit Pro Race koblingskit - Clutch
Metra Kit Pro Race tændspole & CDI (Stadigvæk med lys og elstarter) - Ignition (Coil+CDI - light and electrical starter still works)
Dell Orto PHBL 25 BS karburator - Carburettor.
Doppler Venturi luftfilter, modded - Airfilter
14 / 47 gearing - Gearings

Topfart: ~130km/t @ 13000rpm. 145km/t har den været oppe på én gang med vinden i ryggen, hjemvé, osv :-) Målt via GPS.
HK: 19,14hk

http://81.7.135.211/moped1/albinator...aid=3&pid=1970

It's the owner of the Mopegallery.dk site that have that RS

/Swobber

[riejurs1]

19 hp is good ... but i want more

i want to get near 25hp

if it can be done on a automatic it must also be possible with gears

will 90cc simonini do this much power?

[Swobber]

You could get hands on a 2fast cylinder, and then modify a lot on everything and such - But believe me - 19HP on a RS is a lot of power!

/Swobber

[riejurs1]

Originally Posted by Swobber

You could get hands on a 2fast cylinder, and then modify a lot on everything and such - But believe me - 19HP on a RS is a lot of power!

/Swobber

do they do 2fast4race for am6?

19hp is a lot, but more is always better!!


so i am thinking

28/32 mikuni/keihin
90 simonini, cylindr and crankshaft
yasuni/metrakit exhaust

what about reedvalve and ignition ?

will this do 20+ hp?

[Browni]

Originally Posted by riejurs1

do they do 2fast4race for am6?

19hp is a lot, but more is always better!!


so i am thinking

28/32 mikuni/keihin
90 simonini, cylindr and crankshaft
yasuni/metrakit exhaust

what about reedvalve and ignition ?

will this do 20+ hp?

I think the 90 cc has more potential, a 90 cc RS can do more than 150 (real) km/h!

[Browni]

Originally Posted by riejurs1

do they do 2fast4race for am6?

19hp is a lot, but more is always better!!


so i am thinking

28/32 mikuni/keihin
90 simonini, cylindr and crankshaft
yasuni/metrakit exhaust

what about reedvalve and ignition ?

will this do 20+ hp?

I think yes, you can buy the Tassinari reed valve , there is a Vforce3 for the Minarelli AM engine

Personally I reccomend you the PVL or the HPI ignition system, but you can buy the Selettra (Malossi) if you want!

[Swobber]

Originally Posted by Browni

Personally I reccomend you the PVL or the HPI ignition system, but you can buy the Selettra (Malossi) if you want!

Why would you prefer these ignitions indstead of for example the Malossi, Polini or Italkit? (All Selettra)

/Swobber

[Browni]

Originally Posted by Swobber

Why would you prefer these ignitions instead of for example the Malossi, Polini or Italkit? (All Selettra)

/Swobber

It's hard to tell you in english.. I don't use it, but all of you can

[riejurs1]

Originally Posted by Browni

I think yes, you can buy the Tassinari reed valve , there is a Vforce3 for the Minarelli AM engine

Personally I reccomend you the PVL or the HPI ignition system, but you can buy the Selettra (Malossi) if you want!

the reedvalve looks very good!

do pvl/hpi/malossi ignition still give power for the lights?

[Eoin70]

nope
but u can get a little light coil for HPI
its called a Lichtspeol in Dutch
it provides about 10 watts i think
so it might be ok for rearlights and indicators

[pinkymingeo]

Tassinari doesn't list a Vforce for the HMin. Will one of them fit?

[Browni]

Originally Posted by pinkymingeo

Tassinari doesn't list a Vforce for the HMin. Will one of them fit?

We talk about Minarelli AM engine!!

However there is also Tassinari reed cage for Minarelli Horizontal engine, look at the other topics, you will find pictures too!

[Mexicano]

Pinkymingeo:

Look at:
V-Force Reed Valve for Minarelli Engines

You'll fin all about the VForce3 for Mina engines

[riejurs1]

the vforce3 reed valve looks very good

my engine is am6, the same as rs50!!

hehe 0.5 - 1.0 hp just for a reedvalve

[lilplaya_bm]

Originally Posted by Mexicano

Pinkymingeo:

Look at:
V-Force Reed Valve for Minarelli Engines

You'll fin all about the VForce3 for Mina engines

these manifolds ar available for am6 engines but not for horizontal minarelli...i emailed jeff and he would not send me one becaue they are not in production!!! mexicano simply got a prototype...jeff said they are not finished weeding out all of the problems. they should be in production around october time...till then i use polini...which is the best one?

[riejurs1]

what difference would the better ignitions give, except no lights!!

can i advance or retard the timing as standard by moving the backplate?

[[5th]Bullet]

Originally Posted by riejurs1

what is the best:
crank,
Malossi RHQ

cylinder
IMHO the Hebo Manston

carb,
Keihin PWK 28

exhaust,
The Yasuni R3 wil do just fine

reeds,
offcourse the V-Force3

etc for power for am6

MHR ignition

good luck

[lilplaya_bm]

Bullet-x- u are wrong....krd 80cc stroker is best to go for on am6.never the hebo cil and obviously u would use matching crank with krd cil...if not krd then siminini then mk pro race will be great too...mhr selletras are not better then pvl...yasuni r3 doesnt perforum better then mk pro race pipe...vforce is best...i found a 28 kleinh carb doesnt run that well with the gears for some reason, infact the 24mm makuni flatslide was better and also a 26 round slide dellortho..i think there is a doppler reinforced clutch and there are even longer gear ratios but i have never seen them used...also change your sprockets or u will flip letting your clutch out to fast...
for lights mvt outer roter is nice too...

[Chaps_Zip]

The best setup as of now for the AM6 engine is:
Metrakit PRO RACE 70
Metrakit PRO RACE PIPE
Kehin 28mm on Malossi manifold
VForce3 reed cage
44mm Stroker crank
Metrakit close ratio transmission
Barnet Clutch
Malossi Inner Rotor
Custom Head insert (5cc) with .75mm squish)
and lots of other little parts...this bike does a TRUE 100mph...believe it or not. I can get u a list of all the parts if u want...jus let me kno.

[Browni]

Originally Posted by Chaps_Zip

The best setup as of now for the AM6 engine is:
Metrakit PRO RACE 70
Metrakit PRO RACE PIPE
Kehin 28mm on Malossi manifold
VForce3 reed cage
44mm Stroker crank
Metrakit close ratio transmission
Barnet Clutch
Malossi Inner Rotor
Custom Head insert (5cc) with .75mm squish)
and lots of other little parts...this bike does a TRUE 100mph...believe it or not. I can get u a list of all the parts if u want...jus let me kno.

Why are you convert your 70 cc Metrakit + cylinder head + stroker crank, the Simonini is much more cheaper, and easily do that! 50 mm piston 46 mm stroke, and 14 mm Piston pin size, much more reliable too!!

[Chaps_Zip]

That setup will beat the full simonini setup hands down any day. that bike is a race rs50 so reliability isnt that much of an issue. it pushes out about 22hp and burns out the normal barnett clutch in 2 hours...its now got a custom spacer and new plates. and the crank is a custom made crank just for that bike, its about $800 so im sure it is better made than the simonini 46mm crank.

[Browni]

Originally Posted by Chaps_Zip

That setup will beat the full simonini setup hands down any day. that bike is a race rs50 so reliability isnt that much of an issue. it pushes out about 22hp and burns out the normal barnett clutch in 2 hours...its now got a custom spacer and new plates. and the crank is a custom made crank just for that bike, its about $800 so im sure it is better made than the simonini 46mm crank.

bla-bla-bla..

You are just kidding! Have you ever seen a Simonini crank or cylinder, I don't think so!


"reliability isnt that much of an issue."

Seriously? Heh, I talk about reliability not durability!!

[Chaps_Zip]

no i havent seen one in person but i have seen many pictures...all i kno is that the metrakit stroker is WAAAYYYYY better than any simoni stroker will ever be. hands down. the guys that built this aprilia have probably the fastest rs50 in the world...dont think they take things lightly Metrakit Pro Race all the way!

[Pman]

check this out http://www.mototek.com/whatsnew_butler.htm. Its the worlds fastest rs, and its a 50cc. It uses all kundo race parts over $10,000 spent into the engine alone.

[Chaps_Zip]

its the 'fastest' because they raced it at boneville (salt flats) and the other people with the other aprilia didnt go. they didnt get 100mph at the salt flats but more like 75mph. but thats because of the high altitude i guess. im pretty sure that the other rs50 would beat it. mototek arnt as good as the other company and im sure that they also have alot of $$ into the bike. but ya...mototek is #2 in my books

[smokin]

Originally Posted by Pman

check this out