Cutting cylinder skirt to match intake of the block on spree

[patthesoundguy]

uploadfromtaptalk1353610879990.jpg (78.83 KiB) Viewed 14025 times

I dont know if you guys can see the clyinder through intake of the block. I was wondering if it makes any sense to match that opening in the cylinder skirt and piston skirt to better match the opening in the hole in the intake ports on the block. I have been thinking about it all day and its been driving me nuts. On one hand it makes sense to open all three points where the boost ports are and on the other hand it kinda doesnt. The intake ports on the cylinder are only so big but somehow I feel if there is a cleaner path to them it can only help performance especialy if the taz carb, intake/reed setup for the big bore kit if being used.
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[kingkamehameha]

Dont touch it

[LMH]

Why not? Just curious as I've seen it on tons of race prepped engines, not just tiny ones like these.

[kingkamehameha]

Why not? Just curious as I've seen it on tons of race prepped engines, not just tiny ones like these.

Because no matter what you do its a outdated spree engine! Non variated crap! If your gonna mess around get a dio for some real results

[patthesoundguy]

I don't have a dio... I have a spree... I happen to like my spree. I am well aware it does not have a variator ... I don't want a dio... I want to get more performance from my spree... I am more than capable of swapping in a dio but if I want a dio I will go buy one... Did I happen to also mention that dio scooters are quite rare where I live. Therefore I will continue to work to find simple ways to improve my spree that possibly others can benefit from that do not have a dio or have a dio motor to swap in to their scooter frame. Everyone with stock sprees raise your hand if you want cheap and simple ways to improve the performance of your spree that you happen to like. One can get real results from a spree... as any real change that can be confirmed is real because it actully happened. I am not trying to make my stock spree go 45mph I am doing research and development in to ways I can improve on a simple platform that others may be able to benefit from. Also I have the cash to go buy a brand new 2013 Honda scooter but I have a spree for now because it weighs 90 pounds and it fits on a trailer hitch rack and In can enjoy my spree wherever I feel like. Nuff said?... I hope so

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[motormike]

...YEAH ! !...that's frickin' right ptsg.
Heck, I might even start whittling away at the Gyro jug, just 'cause I can and i don't need no dio either.
P.S....I'm certain that the first Dio in space with be lifting off any moment from our 50th state.

[Wheelman-111]

Greetings:

Nicely put, Pat.

Obnoxious opinions about Sprees not being worth modding can apply just as well to SA owners. Dont bother with a Corsa/MHR because it'll never be as fast as a SilverWing, or a self-respecting EX or GS 500 costing half as much.

Mod away, SoundGuy. My regret is that I have no Spree tips to share.

[kingkamehameha]

Its just not worth the time and money compared to swapping in a se50 or sa50 motor. There is more power and less money and time involved. For around 200 bucks you can get your spree to 50 easy with a 50cc dio based motor. I just gave one away for free to a buddy. You can get the dd50 motors even cheaper. I just dont see the point in squeezing the * out of a motor that wasnt ever meant for speed. Even with a bbk an carb and whatever you can get from taz wont beat a stock sa50 or se50 motor. Suprasandsprees built a spree engine fully and then still lost to his friends spree with a stock variated elite motor. You know what he said? "I wish i just swapped in a dio" there is no cutting or welding involved and you dont have to take any motors apart or cut any piston skirts or nothing just a few minor modifications

[LMH]

Just curious still if all of what you said has any bearing on why he should not cut the skirt to matc is there any reason he should not do it besides he should spend tons o cash on a dio swap. Canadas not the land of dios or dds like the little islands.

[kingkamehameha]

Actually there are alot of dios over there u just have to look. The motor was designed for maximum efficiency. Unless you think you know better than honda then go for it

[patthesoundguy]

I don't know better than Honda, never claimed to. What I am up to is correcting things in my spree that could not be corrected at the time of manufacture either because of cost or measures for regulations of the day. I would say the Iowa sprees are a perfect example of that. Removing the washer in the exhaust header on a restricted Iowa spree is a pretty quick way to gain some more power from what it was from new.

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[patthesoundguy]

Greetings:

Nicely put, Pat.

Obnoxious opinions about Sprees not being worth modding can apply just as well to SA owners. Dont bother with a Corsa/MHR because it'll never be as fast as a SilverWing, or a self-respecting EX or GS 500 costing half as much.

Mod away, SoundGuy. My regret is that I have no Spree tips to share.

Thanks Wheelman, you might not have any spree tips this very moment but your experience is always much apreciated

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[patthesoundguy]

...YEAH ! !...that's frickin' right ptsg.
Heck, I might even start whittling away at the Gyro jug, just 'cause I can and i don't need no dio either.
P.S....I'm certain that the first Dio in space with be lifting off any moment from our 50th state.

LoL... Now there is a perfect example of a situation where swapping in a motor is not an option. Is the gyro jug the same as the spree?

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[tazland001]

No the gyro jug is not the same as the spree.

Taz

[noiseguy]

Jeez. Back to topic. Is cutting into this part of the jug a good idea or not?