PCX 125 vs. 150 wich one better for tuning?
Moderator: Modsquad
PCX 125 vs. 150 wich one better for tuning?
Hello,
I have to decide in the next few weeks wich scooter I buy. Of course if i stay stock, the PCX150 will be the better decision.
But since I want to go big bore, I can´t decide wich one is better.
There are not many people who run a PCX 150 with big bore. To stay street legal, i can´t run a open airfilter, so i have to stay with the stock airbox.
So what would you buy?
On the PCX150 I see some main advantages:
-can run up to 64 mm piston (187cc)
-bigger head (bigger intake and exhaust valves)
-longer gears (not sure about it)
-bigger throttle body (26 or 27mm?)
The plan was to get PCX150 and buy big bore kit to 187cc + takegawa camshaft. Maybe change pipe from Throttle body to Airbox and buy better filter.
Also i don´t know how fueling system will react to this modification. Do i need also a bigger injector on the pcx150 to run it properly? Dont want to buy a AFR gauge + imap to adjust the air fuel ration.
I´ve read that a big bore PCX125 runs perfectly fine with bigger injector without any changes to the ecu, but most people use the 31mm Throttle body and manyfold. Maybe the OEM Throttle Body from the pcx150 will be to small for the bigger injector?
I have to decide in the next few weeks wich scooter I buy. Of course if i stay stock, the PCX150 will be the better decision.
But since I want to go big bore, I can´t decide wich one is better.
There are not many people who run a PCX 150 with big bore. To stay street legal, i can´t run a open airfilter, so i have to stay with the stock airbox.
So what would you buy?
On the PCX150 I see some main advantages:
-can run up to 64 mm piston (187cc)
-bigger head (bigger intake and exhaust valves)
-longer gears (not sure about it)
-bigger throttle body (26 or 27mm?)
The plan was to get PCX150 and buy big bore kit to 187cc + takegawa camshaft. Maybe change pipe from Throttle body to Airbox and buy better filter.
Also i don´t know how fueling system will react to this modification. Do i need also a bigger injector on the pcx150 to run it properly? Dont want to buy a AFR gauge + imap to adjust the air fuel ration.
I´ve read that a big bore PCX125 runs perfectly fine with bigger injector without any changes to the ecu, but most people use the 31mm Throttle body and manyfold. Maybe the OEM Throttle Body from the pcx150 will be to small for the bigger injector?
Re: PCX 125 vs. 150 wich one better for tuning?
Get in touch with yuminashi about your dilemma, they've tuned both versions and will be able to offer good advice at which way to go about. I found them very honest when mining their brain for info..Xedos9er wrote:Hello,
I have to decide in the next few weeks wich scooter I buy. Of course if i stay stock, the PCX150 will be the better decision.
But since I want to go big bore, I can´t decide wich one is better.
There are not many people who run a PCX 150 with big bore. To stay street legal, i can´t run a open airfilter, so i have to stay with the stock airbox.
So what would you buy?
On the PCX150 I see some main advantages:
-can run up to 64 mm piston (187cc)
-bigger head (bigger intake and exhaust valves)
-longer gears (not sure about it)
-bigger throttle body (26 or 27mm?)
The plan was to get PCX150 and buy big bore kit to 187cc + takegawa camshaft. Maybe change pipe from Throttle body to Airbox and buy better filter.
Also i don´t know how fueling system will react to this modification. Do i need also a bigger injector on the pcx150 to run it properly? Dont want to buy a AFR gauge + imap to adjust the air fuel ration.
I´ve read that a big bore PCX125 runs perfectly fine with bigger injector without any changes to the ecu, but most people use the 31mm Throttle body and manyfold. Maybe the OEM Throttle Body from the pcx150 will be to small for the bigger injector?
By the way, where are you located?
Re: PCX 125 vs. 150 wich one better for tuning?
Germany. I have to import the pcx150 from italy, which isn't a big deal.
I already wrote yuminashi, but didn't get an answer.
I already wrote yuminashi, but didn't get an answer.
Re: PCX 125 vs. 150 wich one better for tuning?
Also try Roman at RZ Racing in Netherlands. He is connected with Yuminashi and has just finished two 175cc builds for someone i know. Has a lot of experience from the recent builds and some cool ideas,also sells all the parts you would want..Xedos9er wrote:Germany. I have to import the pcx150 from italy, which isn't a big deal.
I already wrote yuminashi, but didn't get an answer.
Re: PCX 125 vs. 150 wich one better for tuning?
I'm in contact with him. It would be bice if someone Wirth a big bore pcx150 could post some results.
- wingz
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Re: PCX 125 vs. 150 wich one better for tuning?
The PCX150 does have longer gearing than the PCX125. But not long enough.
I believe it is just one gear that you can replace with a stock gear from PCX150.
But you might be changing that gear with an aftermarket one anyway.
Depending on the performance you are looking for, you might get the results you want from a 150 without increasing engine capacity.
I believe it is just one gear that you can replace with a stock gear from PCX150.
But you might be changing that gear with an aftermarket one anyway.
Depending on the performance you are looking for, you might get the results you want from a 150 without increasing engine capacity.
Re: PCX 125 vs. 150 wich one better for tuning?
I want best 0-100 times, so need more power. That means, there´s no way around a big bore kit
Top speed of 120 would be enough for me.
Top speed of 120 would be enough for me.
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Re: PCX 125 vs. 150 wich one better for tuning?
if its 0-100 your looking for go with Yuminashi parts as they are more racing oriented and a daytona variator.
- dasshreddar
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Re: PCX 125 vs. 150 wich one better for tuning?
I think it comes down to parts availability, 125 parts are easier to get than 150.(U.S. anyways)
BUT PLEASE get a 150 and do the big bore and post all about here PLEASE! I've been craving more power since day 1.
BUT PLEASE get a 150 and do the big bore and post all about here PLEASE! I've been craving more power since day 1.
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Re: PCX 125 vs. 150 wich one better for tuning?
Where is that helix or forza swap we've been thinking about? Hell what about a yamaha morphous swap or trexx swap? Or new kawasaki 300 swap? Their new scoot?
Re: PCX 125 vs. 150 wich one better for tuning?
If a vendor makes a 4 valve head, it would increase performance marginally. it would be worth checking.
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Re: PCX 125 vs. 150 wich one better for tuning?
Forget that. I'm boring mine out to 455 cubic inchdem0nk1d wrote:If a vendor makes a 4 valve head, it would increase performance marginally. it would be worth checking.
We've all thought of it, right!?
Re: PCX 125 vs. 150 wich one better for tuning?
Nope,just you you has..you you wrote:Forget that. I'm boring mine out to 455 cubic inchdem0nk1d wrote:If a vendor makes a 4 valve head, it would increase performance marginally. it would be worth checking.
We've all thought of it, right!?
- wingz
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Re: PCX 125 vs. 150 wich one better for tuning?
I didn't expect you to discourage performance mods.Pcxdemon wrote:Nope,just you you has..you you wrote: Forget that. I'm boring mine out to 455 cubic inch
We've all thought of it, right!?
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Re: PCX 125 vs. 150 wich one better for tuning?
You you, Buick, Olds, or Pontiac?
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Re: PCX 125 vs. 150 wich one better for tuning?
I'm thinking GM LS aluminum block myself. A 5.3 turbo swap? Total weight would be around what 550lbs?
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Re: PCX 125 vs. 150 wich one better for tuning?
Oldsmobile toramado.Mgalutia88 wrote:You you, Buick, Olds, or Pontiac?
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Re: PCX 125 vs. 150 wich one better for tuning?
What about a '76 Cadillac eldorado 502 ci?
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Re: PCX 125 vs. 150 wich one better for tuning?
Mgalutia88 wrote:What about a '76 Cadillac eldorado 502 ci?
Isn't that too big, will the seat still close?
- wingz
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Re: PCX 125 vs. 150 wich one better for tuning?
you could install a seat with a bigger hump