Ape not a 50 any longer project

[nick121170]

Oh yes,that's a beaut project you have there.good luck.lookin forward to more updates

[triffid]

sounds fab, good luck and keep the pics coming

[andyw114]

Great pictures and lovely parts. I am watching you flywheel development as i might be looking into a lighter flywheel. Will see once on the road and trying to pull the extra weight.

Andy.

[henri]

thats going to be some motor when done ,really interested in ya airbox an fan designs ,touched on cad design way back when i was at college ,just started then an no 3-d printers even thought of , the possibilitys are near endless , H

[tzsteve]

so it`l do more than 25 mph when finished?

i like the look of the bits you`ve got.
the kheper cdi`s are nice.


a cut and past from an old post....and links to all the files that dont come with the cdi



works well. finding the drivers etc took a while as he dosnt offer any info with the kit, a CD with the drivers would only cost a few pence to bundle with the kit as the software is free once you find it.

they seem very solid although obviously home made.

it does what it says on the label once you get the software.

you need the files from this page
their home page is www.kheper-scooter.com

and you may need some of the files from here to let your computer see the kheper cdi
Drivers here www.ftdichip.com/Drivers/VCP.htm

after you send the map to the cdi wait a few seconds for an ok message.

[davet]

A nice selection of goodies, like the others looking forward to the updates.  Also like the purple and white theme and keen to see the air box design.

[henri]

as its lectric start n has a battery have you thought of a solid state electronic fuel pump , as the vacumns can be slow to re-fill ya carb if you do run out ,my experience on bikes is they can flatten the battery before filling the carbs , facet do a good pump for bout 30-34 quid ,low psi 1 is 2-4psi so you wont need a pressure reg to stop it overcoming ya needle valve n flooding carb , ive run a facet on my 66 triumph car for bout 3 years now an its been real good, couple of advantages ,1 if ya switch it seperate to ignition its extra security/immobiliser ,just dont label the switch or ya can hide it in cab. 2 when low on fuel it gives a warning by going from a nearly inaudible ticking to a "angry woodpecker" in the boot as it draws air . 3 its one less potential air leak on the manifold over a vacumn 1 .
just a idea . H

[andyw114]

Have you taken the diff ratio into account?

[tzsteve]

if it was me i`d go for an electric pump and fit a dual banjo to the carb so you can have a return to the tank, you may need to fit a restrictor in the fuel line so as not to have too high a fuel pressure in the float bowl.

vamum pumps can be unreliable and may need priming.

[tzsteve]

the leds are a good idea i have a few on my scoot pilot light, rear and brake. together they use about 2watts.
i tried the led head lights but found them a bit dim for a primmie

28/69

listed on this gearing calculator
www.scooterhelp.com/tuning/vespa.sf.gear.calc.html
so i guess they are available

[andyw114]

Are you porting the cylinder or leaving as it came?

[Juan]

Rims should be the same as Cosa. I'll maybe get a chance to measure up later on.

[Juan]

Okay, just did a quick visual on an ordinary Vespa split rim beside an Ape. The traditional outside rim (internal on an Ape)appears to be much the same whilst the internal side is around an inch wider. Presuming the Zadra kit still has clearance when you change the geometery then you could look at using the external side from GS160/SS180 rims which are an inch or so wider with more offset.

[henri]

if ya like when i'm home monday ive a cosa rim i could measure an photo for ya ,there a different offset an wider than a usual large frame splits ,might give you a easier option .H

[Juan]

You're getting yourself confused. Using a tradition Vespa split rim (2.10)reversed will reduce the width and make little or no difference to the inside offset, the Cosa rim reversed will be exactly the same (or as near as damn it without one to hand to double check for sure) as the Ape item. Using what would be the outside part of the GS/SS on the inside of the Ape rim will increase the width with more inset towards the suspension and driveshafts providing it doesn't foul on anything. Maybe see if anyone has an old knackered set that you can try to see if they'll work before shelling out on new ones.

[Juan]

Well if Henri measures his Cosa one I'll see if it's the same as the Ape but I'm pretty sure they'll be exactly the same only reversed.
The best stuff you can get for unsiezing nuts etc, if you're not able to drop it in a bucket of Diesel, is graphite penetrating oil.

[henri]

sorry mate ,i totally forgot to measure the cosa rim,prob coz i was drunk when posting ,will def do it know ive been reminded .
anyways coz i ordered some stuff from them ages ago ive just got this years catalogue from a firm called "demontweeks" ,there in wrexham an have a website aswell,as i was drooling over the shiny stuff i kept seeing things you might be interested in , low-draw heaters,cooling fans n ducting ,brake hoses n unions ,lectronic speedo's/tacho's n other instruments ,seat kits,ally foam filled tanks ,or the foam to fill ya own custom tank,which they can also build to your specs, allsorts of goodys ,an even tho its all "race" an "approved" there prices arent over the top an seem reasonable. check em out,i think they send out free catalogues if asked , get ya santa's list off to a good start eh,H

[Juan]

I'd go for option 2.

[potatopl]

Go for Polini, if you can get it at this money.

Crank www.stoffis.com/shop/artikel/490.010link

With carb go for 24-25mm, with unmodified cylinder that is optimal.

[potatopl]

It already has longer inlet duration. With opened sealing pad you will get about 180 deg.