Half throttle faster than WOT?

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

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Trafficjamz
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Re: Half throttle faster than WOT?

Post by Trafficjamz »

bakaracer wrote:what size inlet is on that pipe? have you tried changing the main jet by going smaller or larger? what temps are you seeing at wot?
the inlet size is 32mm

the jets are 145 and 60 right now

It uses to be @ 160 and 60 .....but that did not run as well.

In the 1/8th mile CHT read about 350-375

No plastic cooling shrouds are installed since I only race it for short distances. :smile:
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
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Re: Half throttle faster than WOT?

Post by bakaracer »

so you worked your way down from a 160 to a 145? or just drop down straight to a 145?
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Re: Half throttle faster than WOT?

Post by Trafficjamz »

bakaracer wrote:so you worked your way down from a 160 to a 145? or just drop down straight to a 145?
160 -155 -145

at 145 it felt "snappy" off the line and the small bog, when taking off, had gone away.
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Re: Half throttle faster than WOT?

Post by bakaracer »

have you tried dropping the pilot down to a 58 ? then play with the main? the bigger pilot would be more for street riding where in drag racing you want all the circuits to be at almost perfect air to fuel ratio.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
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Trafficjamz
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Re: Half throttle faster than WOT?

Post by Trafficjamz »

bakaracer wrote:have you tried dropping the pilot down to a 58 ? then play with the main? the bigger pilot would be more for street riding where in drag racing you want all the circuits to be at almost perfect air to fuel ratio.

What main jet to go with the 58 pilot?
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
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bakaracer
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Re: Half throttle faster than WOT?

Post by bakaracer »

try it with your 145 and see how it feels.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
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