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Remember, pistons don't come as 62mm precisely, they're actually 61.98 or less. I'd use a piston that comes with a specific cylinder, don't interchange parts, might cause damage with incorrect tolerance.chicaboo wrote:This is the only thing I've purchased, and I'm still trying to find an injector for the right price:
http://www.ebay.com/itm/232085801802
I can get the cam and hi.comp. piston from another member locally.
But there is always Webike and Yuminashi for parts if you want to pay more for certain things:
http://www.webike.de/HONDA/PCX150/6334/mtop/
http://www.yuminashi.eu/pcx150-kf12-2012-2014/
Don't forget to change your location and currency up the top of each site.
For the 31mm TB and IM I will most likely try to source the actual OEM Honda parts that Yuminashi rebrand.
When it comes time for engine management (the single most expensive part) I might cheap out with Yuminashi?
But there even self tuning options from Dynojet's Power Commander 5, and the Bazzaz Z-Scoot & Z-AFM combos.
I have a local tuner that does Power Cammander and Bazzaz, but dyno tuning might cost as much as self tuning parts?
I am still undecided about the engine management for now.
Yep, I want to see the CM and Yuminashi pistons side by side first so that I can run the vernier calipers over them for comparison.BPT7594 wrote:Remember, pistons don't come as 62mm precisely, they're actually 61.98 or less. I'd use a piston that comes with a specific cylinder, don't interchange parts, might cause damage with incorrect tolerance.
I've used a Takegawa camshaft myself, performance wise I have no complaints and comments. But the noise from the camshaft is much more noticeable than the stock camshaft or the Yuminashi camshaft. It's not because of valve clearance setting but the surface finish quality of the camshaft. My advice when using high performance camshaft is to get yourself some moly paste under 3%, mix them 1:1 with engine oil and when you assemble the camshaft and the roller rockers put some of that mixture on it, and the first 200 miles or so don't rev the engine too much. Doing that will keep the camshaft in shape and prolong its life. This idea is not mine. It's in Honda's manual, I've tried it, works out well so far.
About the injector, throttle body and manifold, Yuminashi got them right where they should be. About sourcing each individual part, I think it would be much much cheaper to buy from Yuminashi. I've tried in the past, the actual parts from Honda cost a lot more than those rebranded and sold by Yuminashi. Plus the manifold in the set is custom made from a stock part. You'll need to be very clever to figure out which original part it is and how to do it.
Give Yuminashi some time. Their sales service just got messed up, they're cleaning it up. Their quality is good.chicaboo wrote:Yep, I want to see the CM and Yuminashi pistons side by side first so that I can run the vernier calipers over them for comparison.BPT7594 wrote:Remember, pistons don't come as 62mm precisely, they're actually 61.98 or less. I'd use a piston that comes with a specific cylinder, don't interchange parts, might cause damage with incorrect tolerance.
I've used a Takegawa camshaft myself, performance wise I have no complaints and comments. But the noise from the camshaft is much more noticeable than the stock camshaft or the Yuminashi camshaft. It's not because of valve clearance setting but the surface finish quality of the camshaft. My advice when using high performance camshaft is to get yourself some moly paste under 3%, mix them 1:1 with engine oil and when you assemble the camshaft and the roller rockers put some of that mixture on it, and the first 200 miles or so don't rev the engine too much. Doing that will keep the camshaft in shape and prolong its life. This idea is not mine. It's in Honda's manual, I've tried it, works out well so far.
About the injector, throttle body and manifold, Yuminashi got them right where they should be. About sourcing each individual part, I think it would be much much cheaper to buy from Yuminashi. I've tried in the past, the actual parts from Honda cost a lot more than those rebranded and sold by Yuminashi. Plus the manifold in the set is custom made from a stock part. You'll need to be very clever to figure out which original part it is and how to do it.
I'm surprised to hear the milder Takegawa cam is noisier than the Yuminashi cam. Is this a mechanical noise due to the ramp rate or such?
The one I can get locally is used (from a certain chainsaw), so it may very well be past it's bed in period. So I'm not sure the paste will help by now?
As it's further down the track, I may very well get the TB and IM from Yuminashi if sourcing them independently proves too difficult.
Hopefully by then Yuminashi are past their teething problems with customer support and can fulfill orders in a timely manner, we'll see.
As for the injector, I will probably use the same one that Maddiedog did, as he posted the part number, and from memory it looks right.
Thanks for your contribution!
I've got yuminashi camshaft and it's noisy on idle. Adjusted valves to stock clerance then to tight yuminashi setting but ticking noise is still there on idle. I think valves are pushed further and just make more noise when they come back .chicaboo wrote:Yep, I want to see the CM and Yuminashi pistons side by side first so that I can run the vernier calipers over them for comparison.BPT7594 wrote:Remember, pistons don't come as 62mm precisely, they're actually 61.98 or less. I'd use a piston that comes with a specific cylinder, don't interchange parts, might cause damage with incorrect tolerance.
I've used a Takegawa camshaft myself, performance wise I have no complaints and comments. But the noise from the camshaft is much more noticeable than the stock camshaft or the Yuminashi camshaft. It's not because of valve clearance setting but the surface finish quality of the camshaft. My advice when using high performance camshaft is to get yourself some moly paste under 3%, mix them 1:1 with engine oil and when you assemble the camshaft and the roller rockers put some of that mixture on it, and the first 200 miles or so don't rev the engine too much. Doing that will keep the camshaft in shape and prolong its life. This idea is not mine. It's in Honda's manual, I've tried it, works out well so far.
About the injector, throttle body and manifold, Yuminashi got them right where they should be. About sourcing each individual part, I think it would be much much cheaper to buy from Yuminashi. I've tried in the past, the actual parts from Honda cost a lot more than those rebranded and sold by Yuminashi. Plus the manifold in the set is custom made from a stock part. You'll need to be very clever to figure out which original part it is and how to do it.
I'm surprised to hear the milder Takegawa cam is noisier than the Yuminashi cam. Is this a mechanical noise due to the ramp rate or such?
The one I can get locally is used (from a certain chainsaw), so it may very well be past it's bed in period. So I'm not sure the paste will help by now?
As it's further down the track, I may very well get the TB and IM from Yuminashi if sourcing them independently proves too difficult.
Hopefully by then Yuminashi are past their teething problems with customer support and can fulfill orders in a timely manner, we'll see.
As for the injector, I will probably use the same one that Maddiedog did, as he posted the part number, and from memory it looks right.
Thanks for your contribution!
Sometimes I think I got a metal fetish. That camshaft just sits quietly on my table, I spent 50$ just to have one copy for show. I like my cam smooth and curvychicaboo wrote:That's one sexy cam!
. But I knew my Yuminashi camshaft was less noisy compared to my friend's Takegawa one. And you're correct that the valves are slammed back a bit harder. That's why I always buy new valves to use with a new engine and ask a shop to do a valve job. Helps keep a nice compression. .
BPT7594 wrote:She's sexy right? But sometimes when she's asleep, I sneak out to meet this lady here. This one is a naughtily dirty one, she likes to bath in 10W30 fully synthetic oil. So I give her just that.
Ok sorry guys I think she needs me now. I'll be back soon.
faster acceleration.Adonai1st wrote:I'm thinking of getting the 175cc BBK big bore kit for my PCX.....what kind of performance increase should I expect? How much of a faster top end speed will I get with this?
chicaboo wrote:I just ordered a CM 175cc BBK off eBay and plan to run it with a bigger injector on stock ECU initially.
From there I'll be doing the 31mm throttle body and intake manifold, still on stock ECU if possible.
Moving on to the Takegawa sports cam and high compression piston with a piggyback ECU to finish up with.
So yeah, there's lots you can do to your 2013 150cc engine other than a variator.
Hey Mr,vamootsman wrote:chicaboo wrote:I just ordered a CM 175cc BBK off eBay and plan to run it with a bigger injector on stock ECU initially.
From there I'll be doing the 31mm throttle body and intake manifold, still on stock ECU if possible.
Moving on to the Takegawa sports cam and high compression piston with a piggyback ECU to finish up with.
So yeah, there's lots you can do to your 2013 150cc engine other than a variator.
So did you ever get this setup done? If so, how well does it work?
OK cool. Super interested in the results when you're done.chicaboo wrote:Hey Mr,vamootsman wrote:chicaboo wrote:I just ordered a CM 175cc BBK off eBay and plan to run it with a bigger injector on stock ECU initially.
From there I'll be doing the 31mm throttle body and intake manifold, still on stock ECU if possible.
Moving on to the Takegawa sports cam and high compression piston with a piggyback ECU to finish up with.
So yeah, there's lots you can do to your 2013 150cc engine other than a variator.
So did you ever get this setup done? If so, how well does it work?
Nah, I was pretty busy with work and feeling really run down for a couple months, so I just let it all sit.
Currently I have my 31mm TB at the shop getting the injection port closed and I'm chasing up an exhaust shop to get my wideband bung welded on.
Once I get my TB back and have the exhaust welded, I can put aside a weekend and start on all the intake mods IM, TB, injector, and interceptor.
So, at this stage I will probably have the intake and ECU done within a month from now. Then the BBK and cam in a month or two after that.