Reed Spacers

ute · Post by **ute** » Mon Aug 08, 2011 8:58 pm

So has anyone done or added reed spacers to the Spree ?

if so how thick ?

notice any difference ?

before ( more low end ) or after ( more top end ) the cage ?

Bear45-70 · Post by **Bear45-70** » Mon Aug 08, 2011 9:55 pm

A reed spacer under the reeds (between the reeds and the block), you increase the case volume there by LOWERING the crankcase pressure, hence the combustion chamber pressure, making LESS horsepower.

Putting a spacer above the reeds (between the reeds and the intake manifold) will lengthen the intake runner, moving the peak horsepower and torque RPM downward.

martynkim · Post by **martynkim** » Mon Aug 08, 2011 10:05 pm

Bear45-70 wrote:A reed spacer under the reeds (between the reeds and the block), you increase the case volume there by LOWERING the crankcase pressure, hence the combustion chamber pressure, making LESS horsepower.

Putting a spacer above the reeds (between the reeds and the intake manifold) will lengthen the intake runner, moving the peak horsepower and torque RPM downward.

What comes to mind now is, Carlos Mencia duh tadauh!!!

ute · Post by **ute** » Tue Aug 09, 2011 7:34 pm

Ok Dokie so has anyone put spacer on the spree ?

Bear45-70 · Post by **Bear45-70** » Tue Aug 09, 2011 8:08 pm

Yeah to adapt a CT intake to the Spree but then the stock Spree reeds are left out. Besides if you want a longer intake tract just get a 1985 Aero 50 intake and use it, as it is 13.26 mm longer than the Spree intake. But of course this will require you to NOT use the stock air box but then so will a spacer and the rejet required for that maybe make or break this change. In either case the performance increase if any will be next to nothing.

Spreetard · Post by **Spreetard** » Wed Aug 10, 2011 1:17 pm

at first glance i thought the title was "Speed Racers"

Trafficjamz · Post by **Trafficjamz** » Wed Aug 10, 2011 1:21 pm

Spreetard wrote: at first glance i thought the title was "Speed Racers"

Ohh yeah

ute · Post by **ute** » Wed Aug 10, 2011 8:41 pm

Ok so not worth it on the Spree

They make a huge difference on the RD moves the band where you want it

Bear45-70 · Post by **Bear45-70** » Wed Aug 10, 2011 9:02 pm

None of the early scooters had a restricted CDI. That came later with the DIO

spewya · Post by **spewya** » Fri Aug 12, 2011 3:35 pm

i made a space for my spree ..havent out it on yet but i made one

ute · Post by **ute** » Fri Aug 12, 2011 8:31 pm

When you get it on the scoot let me know how it is

how wide 8mm ?

spewya · Post by **spewya** » Sat Aug 13, 2011 1:39 am

it will only be about 5mm thick with a gasket above and below it because i made it from a old reed cage

bakaracer · Post by **bakaracer** » Sat Aug 13, 2011 12:31 pm

ute wrote:So has anyone done or added reed spacers to the Spree ?

if so how thick ?

notice any difference ?

before ( more low end ) or after ( more top end ) the cage ?

if your looking for more torque and power, mill the head to increase the compression. the stock compression ratio is very low around 7to1. if you mill the head about .030 that will bring the compression ratio to about 9to1. just have to run premium gas after doing that and your good to go.

ute · Post by **ute** » Sat Aug 13, 2011 9:29 pm

I'm up for milling eventually

But with the spacer i have some aluminum here I can just cut and fit

I can see 5mm would be better , we used 8 mm on the RD's

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