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Post by martino on Mar 6, 2018 1:43:01 GMT
Hi everyone, would be really great if people had thoughts on this. I've purchased a 1958 VNA with a P200 engine in it, still will with 8" wheels. I know P200 engines have been tossed into 8" wheeled scooters before, and they go fine.
However, I've also been told that the physical restrictions of the older scooter (the 8 inch wheels/RPM/bearings - not sure of the detail here) can burn out the engine. Has anyone on here tossed a newer engine in a classic? (and kept both 8" wheels?). Any comments or people's experience would be appreciated!
Cheers
Martino
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Post by phattanglo on Mar 6, 2018 8:27:13 GMT
I would imagine the higher rpm for a given road speed would increase your fuel consumption and generally be a pain.
Much better to raise your gearing if possible.
If you want to retain 8 inch wheels and use your scoot on a regular basis I can't think of anything else.
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Post by martino on Mar 6, 2018 11:24:59 GMT
Thanks phattanglo - Not too worried about fuel consumption (still a lot better than a car! :-) ) I guess I was just wondering if its going to do any damage to the gears or the engine?
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Post by phattanglo on Mar 6, 2018 13:29:12 GMT
Well you'll lose some top end speed but it should fly up hills😁
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Post by ironsloth on Mar 6, 2018 17:59:19 GMT
I'm sure the bearings would be up to it, if you're really concerned, there's plenty of companies who could make you a heavier duty bearing set... One company I can think of is HB bearings. The other guys will know for certain, but I don't reckon there would be much of an issue.
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Post by citydaz on Mar 6, 2018 18:55:00 GMT
would a compromise be to have a 10" wheel on the rear and keep the front at 8"?
Is this possible?
or would it be the worse of both worlds?
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Post by martino on Mar 7, 2018 1:57:25 GMT
Thanks everyone for the advice - looks like to me, no one is aware of any issues of putting a PX engine in an 8". citydaz I have read that people have 10" wheels on back and 8" on front (which is easier to do, as you don't have to change the forks).
Not sure if its a good idea, or what affect it has on the scooter - could affect handling, not sure?
ironsloth - thanks for the bearings info.
If anyone has put a PX engine in an 8" scooter, please comment here on your experience. Probably helpful to know, for others that might be thinking of doing it. Cheers!
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Post by henri on Mar 7, 2018 8:02:13 GMT
theres a few issues with px engines into a 8" scooter , clearance around the carb box engine wise ,an forks needing changing to 10" variety .ive a t5 in a vna chassis an it overwhelms the older forks an front brakes so have used a px mk1 fork ,done the same with my super with a t5 152cc .
the super when i got it had a px engine 10" rear an still 8" front ,rode it a bit like that an it was crap, looked weird an was quirky on the handling .
the advice given that 8" on a px engine will kill it isnt totally wrong ,its the rider holding higher revs to maintain a 10" cruising speed not the engine .alter your riding style to accept the more modest 8" speeds an engine will be fine,an also wont be outside your brakes performance .H
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Post by ironsloth on Mar 7, 2018 19:17:30 GMT
Did wonder if they handled like a bag-o-sh*te to be honest, not done that to a scoot.... Doesn't affect the handling in a Vauxhall Victor FD......
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Post by martino on Mar 8, 2018 11:21:56 GMT
theres a few issues with px engines into a 8" scooter , clearance around the carb box engine wise ,an forks needing changing to 10" variety .ive a t5 in a vna chassis an it overwhelms the older forks an front brakes so have used a px mk1 fork ,done the same with my super with a t5 152cc . the super when i got it had a px engine 10" rear an still 8" front ,rode it a bit like that an it was crap, looked weird an was quirky on the handling . the advice given that 8" on a px engine will kill it isnt totally wrong ,its the rider holding higher revs to maintain a 10" cruising speed not the engine .alter your riding style to accept the more modest 8" speeds an engine will be fine,an also wont be outside your brakes performance .H Thanks Henri. Great to hear from another VNA with a PX engine. This makes sense, its not the actual machine, its the rider pushing 8" wheels to 10" performance... explains why its a problem for some, but not others. I guess I will ride it in a reasonable fashion, and may toss on 10" forks at a later stage. Yeah, I'd heard 8" on front and 10" on back was not great for handling. |
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Post by citydaz on Mar 8, 2018 15:03:20 GMT
Hi martino,
Im upgrading the front forks on my '78 mk1 P200e to 20mm and disc brake in the next month or so,
so the old 16mm forks, (and a new front shocker) will be surplus to requirements.
You can have first dibs if you want for a modest fee.
let me know if you could be interested
cheers
Citydaz
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Post by henri on Mar 9, 2018 6:36:37 GMT
putting p forks in a older scoot improves handling and braking ,but there is one problem ,a mudguard that fits ,both of mine have huggers on . H
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Post by martino on Mar 11, 2018 9:26:10 GMT
Hi martino, Im upgrading the front forks on my '78 mk1 P200e to 20mm and disc brake in the next month or so, so the old 16mm forks, (and a new front shocker) will be surplus to requirements. You can have first dibs if you want for a modest fee. let me know if you could be interested cheers Citydaz Hey Citydaz, thanks for keeping me in mind, but I'm not in the states, so the freight costs wouldn't be worth it to get them here. Thanks anyway, appreciate the offer. |
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Post by martino on Mar 11, 2018 9:26:54 GMT
putting p forks in a older scoot improves handling and braking ,but there is one problem ,a mudguard that fits ,both of mine have huggers on . H what do you mean,"huggers" Henri? |
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Post by ironsloth on Mar 11, 2018 11:14:59 GMT
Something like this, but it should come with a bracket, stick this into eBay: 253264047669
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Post by ironsloth on Mar 11, 2018 11:17:14 GMT
This one shows it better, with bracket: 142711597073
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Post by citydaz on Mar 11, 2018 13:39:05 GMT
Hi martino, Im upgrading the front forks on my '78 mk1 P200e to 20mm and disc brake in the next month or so, so the old 16mm forks, (and a new front shocker) will be surplus to requirements. You can have first dibs if you want for a modest fee. let me know if you could be interested cheers Citydaz Hey Citydaz, thanks for keeping me in mind, but I'm not in the states, so the freight costs wouldn't be worth it to get them here. Thanks anyway, appreciate the offer. Im not in the states neither. Im just south of Manchester |
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Post by henri on Mar 12, 2018 17:14:32 GMT
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Post by henri on Mar 12, 2018 17:17:46 GMT
 IMG-20170914-00155 by henri briggs, on Flickr the full line up , tho black 50 spesh is gone an replaced with a red 50spesh , an my supers not in it ,or my vespbretta , i think ive a "problem" .H |
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Post by martino on Mar 12, 2018 22:03:04 GMT
Hey Citydaz, thanks for keeping me in mind, but I'm not in the states, so the freight costs wouldn't be worth it to get them here. Thanks anyway, appreciate the offer. Im not in the states neither. Im just south of Manchester Ah, sorry for assuming you were in the US..classic mistake. Damn...I'm in Oz, so freight would still be prohibitive, otherwise would have taken you up on it! Martino |
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Post by citydaz on Mar 12, 2018 22:42:14 GMT
ha ha ha,
the interweb - its just like living in a big village.!
Hope you sort out your scoot.
Ride safe mate.
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Post by martino on Mar 15, 2018 11:26:27 GMT
ha ha ha, the interweb - its just like living in a big village.! Hope you sort out your scoot. Ride safe mate. :-) Yeah, it certainly is - its great! Thanks mate, you ride safe too. |
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