BluPhire wrote:I wish I could tell you how it affected my speed, but I messed with the airfilter, and now It wont get passed 30. So I'm hot sure if affected my speed or not. The tires were about $30.00 a piece. new tubes were $5.00 a piece. So it isn't an expensive investment.
as in airfilter stays open a bit now? you could be vacumming at high speeds. imo
u could mess with the gearing so u have better acceleration. but it will have less top end speed. i have a junk spree i was gonna put a 5 horse briggs+straton on.
You could get more torque and lower top speed by putting a washer (1/16" thick or so) between the starter ring and front inside pulley. This speads the pulley halves and increases the ratio b/t engine and wheel.
Watch for buzzing at the starter; if you space the ring too far out it the starter might have a hard time engaging.
You could get more torque and lower top speed by putting a washer (1/16" thick or so) between the starter ring and front inside pulley. This speads the pulley halves and increases the ratio b/t engine and wheel.
Can you explain this a little more in detail for me? Sounds like a good idea I might want to try.
what hes saying is the belt fits in between the two pulley halfs and stops at a certain point. if you space the pulley halfs further apart the belt will stop lower on the pulley and increase the ratio.
Yes, that's exactly right. If you read about the "pulley mod" in the performance section, you're doing the exact opposite. For the "go faster" mod (which I've done to mine) you remove material from the inner pulley.
You want the "go slower with more torque" mod, which means spreading the pulleys apart with a washer. This mod is easily reverseable, too.
BTW, this is exactly how a variator works, and why Spree are so slow compared to other 50cc scooters with variators (ie Elites and Aero, et al.) A variator spreads the pulleys apart at low RPM, and tightens them up at high RPM. It's a form of CVT, continuously variable transmission. Snowmobiles use a form of this too.
Further, it sounds like MRFIXIT put a variator on a Spree by changing to an Elite crank and variator. A lot of work, but there's no other way to add it, the Aero 50 variator will not fit (I've already checked, it's too wide.)
noiseguy wrote:Yes, that's exactly right. If you read about the "pulley mod" in the performance section, you're doing the exact opposite. For the "go faster" mod (which I've done to mine) you remove material from the inner pulley.
You want the "go slower with more torque" mod, which means spreading the pulleys apart with a washer. This mod is easily reverseable, too.
BTW, this is exactly how a variator works, and why Spree are so slow compared to other 50cc scooters with variators (ie Elites and Aero, et al.) A variator spreads the pulleys apart at low RPM, and tightens them up at high RPM. It's a form of CVT, continuously variable transmission. Snowmobiles use a form of this too.
Further, it sounds like MRFIXIT put a variator on a Spree by changing to an Elite crank and variator. A lot of work, but there's no other way to add it, the Aero 50 variator will not fit (I've already checked, it's too wide.)
is the aero50 different then the elite? what year did u try to fit it to?1984?
00' sa-50 slammed and stretched
89' elite sb, with a 99' af16, (SOLD)
87' spree (SOLD
87' mustang gt vert kenne bell, irs.
90' mustang notch turbo drag car
12' wrx
The Aero 50 has a 3-gear rearend and a variator, different reeds and probably carb. It's quite a bit different from the Spree. The Aero variator would not fit my '84 Spree, but might fit yours based on your pics (which is interesting.)
MRFIXIT actually installed a newer Elite 50 motor, not new parts into the Spree cases (which is what I thought he'd done originally.) An Elite 50 plant is a much better starting platform for mods, and comes close to bolting up in place of the Spree plant.
