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derestricting

Posted: Sun Mar 31, 2013 2:49 pm
by tgbm13
has any one got any clue how to de restrict one of these?
and if you do what top end do you get??
is there any bad points of doing it???

Re: derestricting

Posted: Sun Mar 31, 2013 4:17 pm
by gn2
tgbm13 wrote:has any one got any clue how to de restrict one of these?
Your question is based on a false premise.
The PCX isn't restricted, it was designed from the outset to run at 100kph max.
If you want to go faster you'll need to spend money.
(best to spend it on a bigger scooter)

Re: derestricting

Posted: Sun Mar 31, 2013 7:53 pm
by uploader
Only way to go about is for you to install a bigger bore kit,
http://www.motorkit.com/en/3059-moteur

Re: derestricting

Posted: Mon Apr 01, 2013 7:51 am
by tgbm13
ok cheers guys! i dout ill get the big bore kit for it!
is there any sort of restrictors in the exhaust when i hit about 65 - 67 mph the power seems to cut out or lag for a few seconds then kick back in!

Re: derestricting

Posted: Mon Apr 01, 2013 9:47 am
by Slickvic
tgbm13 wrote:ok cheers guys! i dout ill get the big bore kit for it!
is there any sort of restrictors in the exhaust when i hit about 65 - 67 mph the power seems to cut out or lag for a few seconds then kick back in!
You mean similar to a rev limiter?? ;) Hmmmmmm....

Re: derestricting

Posted: Mon Apr 01, 2013 11:05 am
by you you
Slickvic wrote:
tgbm13 wrote:ok cheers guys! i dout ill get the big bore kit for it!
is there any sort of restrictors in the exhaust when i hit about 65 - 67 mph the power seems to cut out or lag for a few seconds then kick back in!
You mean similar to a rev limiter?? ;) Hmmmmmm....

Not if it kicks back in?

Re: derestricting

Posted: Mon Apr 01, 2013 11:11 am
by Slickvic
you you wrote:
Slickvic wrote:
tgbm13 wrote:ok cheers guys! i dout ill get the big bore kit for it!
is there any sort of restrictors in the exhaust when i hit about 65 - 67 mph the power seems to cut out or lag for a few seconds then kick back in!
You mean similar to a rev limiter?? ;) Hmmmmmm....

Not if it kicks back in?

Is'nt that how a rev limiter works? By cutting off fuel above a certain RPM and then turning on the fuel after the RPMs drop below a certain point?

I'm still breaking mine in so I don't know how this scooter behaves when you max out at top speed, but I have heard it described similarly. :|

Re: derestricting

Posted: Mon Apr 01, 2013 12:31 pm
by tgbm13
Does any one know how to take the limiter off it? Because its really annoying me haha

Re: derestricting

Posted: Mon Apr 01, 2013 12:38 pm
by you you
tgbm13 wrote:Does any one know how to take the limiter off it? Because its really annoying me haha

Why? Even if the bike was restricted in some way you'd be limited by the pathetic amount of HP, the aerodynamics and the rolling resistance. You're never going to cut the mustard on the salt flats

You do know it's a cheap scooter and it'll never increase your perceived todger?

Re: derestricting

Posted: Mon Apr 01, 2013 4:03 pm
by tgbm13
Yeaah if I wanted ridiculous speeds id buy an r1 or a ninja I want a bit more top end speed with out spendin to much money

Re: derestricting

Posted: Mon Apr 01, 2013 4:14 pm
by gn2
tgbm13 wrote:Does any one know how to take the limiter off it?
Yes, its quite straightforward, you just replace the entire engine management system.

Hmmm.... I'm doing that thing again....

Re: derestricting

Posted: Mon Apr 01, 2013 4:33 pm
by you you
tgbm13 wrote:Yeaah if I wanted ridiculous speeds id buy an r1 or a ninja I want a bit more top end speed with out spendin to much money
Perhaps there's a sensible compromise between the two idiotic extremes?

Re: derestricting

Posted: Tue Apr 02, 2013 6:08 am
by Cracksta
I think the general answer is theres no point, it will feel like your running it near 100% if you want top speed whereas a bigger bike will run it at say 30-40% and not feel any strain at those speeds.

a 250-400cc bike will you want you want but again no point in swapping the engines out.

Re: derestricting

Posted: Tue Apr 02, 2013 6:36 am
by tgbm13
cheers cracksta! yeaah i just wanted some info on it really if there was any point or not.
thinking of doing my A2 licence soon so im thinking of getting the ninja 300 :O if i bother that is!

Re: derestricting

Posted: Fri Apr 05, 2013 3:03 pm
by maddiedog
gn2 wrote:Hmmm.... I'm doing that thing again....
:lol: :lol: :lol: I like how you caught yourself. I'm proud of you, you're being a gentleman. ;)


Back on topic, the rev limiter / speed limiter is on the ECU. You could replace the ECU, but the engine just doesn't have the power to go any faster.

There is no limiter plate, or washer restricting the exhaust, or any magic fairy dust that will make the stock bike go faster. You have to replace drive components (losing acceleration with possibly no gains) or engine components (costly, but will deliver results).


To keep the How-To forum clean per the guidelines here: http://www.hondapcx.org/viewtopic.php?f=3&t=762, I am moving this thread to the General subforum. :)

Re: derestricting

Posted: Fri Apr 05, 2013 4:16 pm
by Taz
maddiedog wrote:
gn2 wrote:Hmmm.... I'm doing that thing again....
:lol: :lol: :lol: I like how you caught yourself. I'm proud of you, you're being a gentleman. ;)

Gn2 deserves a gold star for encouragement.

Re: derestricting

Posted: Fri Apr 05, 2013 5:13 pm
by Alibally
Taz wrote:
maddiedog wrote:
gn2 wrote:Hmmm.... I'm doing that thing again....
:lol: :lol: :lol: I like how you caught yourself. I'm proud of you, you're being a gentleman. ;)

Gn2 deserves a gold star for encouragement.
Nice

Re: derestricting

Posted: Fri Apr 05, 2013 5:29 pm
by Mel46
I actually came across a site that showed the pcx being raced. I think it was in Japan. I was surprised.

Re: derestricting

Posted: Fri Apr 05, 2013 6:58 pm
by tgbm13
Mel46 wrote:I actually came across a site that showed the pcx being raced. I think it was in Japan. I was surprised.
send me a link :D

Re: derestricting

Posted: Sat Apr 13, 2013 10:10 am
by haildamage
the PCX is what it is. it isnt designed to cruise near redline as that would be in conflict with hondas tradition of longevity. this is why its restricted below the engines full potential, IMO.