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44mm or 48mm BBK
Posted: Sun Mar 20, 2011 3:52 pm
by thistleb
I have an 85 Spree, compression on the low side 90psi. I have been considerng a BBK. Have emailed Taz back and forth on the kits, super helpful. But like all my research I like to hear from other customers as well. My spree is clean and reliable, would like to keep it that way. That said I use is at my summer home in NH and some added power to handle the hills would be great. My understanding is the 48mm requires additional tuning to the carb and was wondering if its worth the additional tweaking. Thanks in advance
Re: 44mm or 48mm BBK
Posted: Sun Mar 20, 2011 4:19 pm
by tazland001
Here is what I have to say. If you install a 48mm kit it is easy to tune. At least for me. This will give you way better acceleration and it will eat up hills. I have a 48mm kit in my spree and it takes off and accelerates much much better. I put a 48mm kit in this elite e I got for 80$. This thing hauls *. I was at a big motocross race this weekend at Mesquite, Nevada and jumped that elite over 4ft. It flew over the hill.
Taz
Re: 44mm or 48mm BBK
Posted: Sun Mar 20, 2011 6:29 pm
by odinxxix
i have the 44mm kit and i am pleased with it, my son rides it and seems to like it. that said i was reading in another post that to run the 48mm it will need a bigger carb. can you elaborate. if ypu do tell us what is needed to get full potential out of it.
Re: 44mm or 48mm BBK
Posted: Mon Mar 21, 2011 11:15 am
by tazland001
I just rejeted and it runs fine. I used a uni free flow. Its really not hard to dial them in. I just use my stock carb. The racing carbs will be avalable in a month for the spree.
Taz
Re: 44mm or 48mm BBK
Posted: Tue Mar 22, 2011 12:00 pm
by spewya
will the 44 power the gears
Re: 44mm or 48mm BBK
Posted: Tue Mar 22, 2011 12:17 pm
by Trafficjamz
spewya wrote:will the 44 power the gears
Yes
Re: 44mm or 48mm BBK
Posted: Tue Mar 22, 2011 9:23 pm
by spewya
does taz only make one kind of gears for the spree ... will you get more out of the 48mm with out using a bigger carb bigger intake and tuned pipe than the 44mm
also if you use the gears with a 44mm will the acceleration be worse than if you used it with out the gears or will the accereration be better and top speed be better also
can you use a bigger carb bigger intake and tuned pipe with the 44mm and still get more out of it or is the 44mm designed to be used with all stock other parts just to give it that extra lil ommphh
Re: 44mm or 48mm BBK
Posted: Wed Mar 23, 2011 12:21 am
by Trafficjamz
spewya wrote:does taz only make one kind of gears for the spree
yes only one size
... will you get more out of the 48mm with out using a bigger carb bigger intake and tuned pipe than the 44mm
More what? Vibration......yes 
also if you use the gears with a 44mm will the acceleration be worse than if you used it with out the gears or will the accereration be better and top speed be better also
44mm bore without the gears accelerates quickly but has the same top speed as stock.
can you use a bigger carb bigger intake and tuned pipe with the 44mm and still get more out of it or is the 44mm designed to be used with all stock other parts just to give it that extra lil ommphh
Both the 44 and th 48 would benefit from a pipe and intake.
Re: 44mm or 48mm BBK
Posted: Thu Mar 24, 2011 9:27 pm
by spewya
how fast will it go with gears
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 8:47 pm
by spree-rider
about 40-42 mph w/o intake pip or clutch spring. if you change thecenter sspring. you will probably get a couple more.
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 8:47 pm
by spree-rider
about 40-42 mph w/o intake pip or clutch spring. if you change thecenter sspring. you will probably get a couple more.
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 8:56 pm
by spewya
i was gona port the in take try and make a tuned pipe out of the muffelers and expantion chambers i have .. what kind of center spring should i get ..
also can you get more power, top end, or acceleration out of a stock bore buy using a ported intake and tuned pipe
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 9:39 pm
by spree-rider
more throttle response and a little bit of everything alse
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 10:17 pm
by spewya
okay cool
Re: 44mm or 48mm BBK
Posted: Fri Mar 25, 2011 11:04 pm
by Bear45-70
spree-rider wrote:more throttle response and a little bit of everything alse
Actually the opposite is true. A bigger intake track's throttle response is slower than a smaller one. just as a bigger carb hurts bottom end throttle response at the expense of loss of low end throttle response. The only thing this helps is the top end, AKA top speed and if you gain 1 mph you will be way more than lucky.