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Post by noakira on Dec 24, 2011 1:57:22 GMT 1
I want to put the one of my Revere's on a race diet / shed some the of the factory pounds.......
"Retro Revere 21c" for a ecomodding type project
Some sketchy ideas so far............ (mainly hypothetical / blue sky / winter nights)
- Slim line racing type battery
- Kevlar / Glass fiber under seat fuel tank (10/12 litres max)
- Single seat only
- LED lights / indicators, lighter wire required
- single plastic horn / lighter rectifier
- Plastic backed 7" headlight
- Aluminum / Monochoque rear section
- Cut x8 36mm circles out of inside of frame
- Smaller more efficient radiator
- Instrument Cluster removed / Electronic Speedometer
- Foot rest plates reduce, singlr rider only
- small super light weight half fairing
- CF (Carbon Fibre) Engine covers / head covers
- Lighter wheel Rims / Tires to
- De-tune engine
- MPGuino / Speedometer
- Remove centre stand (useful but heavy)
Any others.......
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Post by thatsawkward on Dec 24, 2011 7:19:12 GMT 1
Interesting project! Having recently stripped down the Revere, here are my views on the surprisingly HEAVY bits (many of which you already have planned): Engine (cases and covers - very heavy, even individually) Shaft drive - though unless you go Hawk chain-drive, not much you can do about that Forks - the following link shows a list of 41mm forks that could be fitted to the Revere scandalon.com/2009/06/motorcycle-fork-diameter-chart/ - maybe a Yam YZ125 supermoto front end?! Rear hangers/footrests - incredibly heavy vs race hangers, though HawkGT hangers won't fit without some machining Wiring loom - in totality is pretty heavy - you don't need lots of it! Wheels, though in fairness they are not too heavy - I've had worse! Stuff that in my opinion is pretty lightweight: Tank - when empty I was surprised that it wasn't heavier Radiator - when off the bike seems lightweight to me Plastics - may sound stupid but replacing with carbon/alu wouldn't make that much difference Suff that can just go: Indicators, clocks, pillion stuff, unnecessary wiring, rear undertrays, grab rail, radiator covers, centre stand, exhaust! (spotted these on ebay - might be fun www.ebay.co.uk/itm/Twin-stainless-rear-pipes-NTV-650-Universal-loud-custom-streetfighter-/170751911092?pt=UK_Motorcycle_Parts&hash=item27c19b64b4#ht_724wt_1163Going back to my old (much younger!) years of racing Alfas, we stripped or re-engineered everything to be lighter. But then, like now, the effort and resources that went into machining lightweight replacement parts would presumably outweigh any eco-savings - we did that just to go faster! |
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groovylee
Sheene Gold rider. Nuff said
Member of the QA team
Posts: 648
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Post by groovylee on Dec 24, 2011 10:43:07 GMT 1
hmm, i saw those pipes too, might have a cheeky bid on them for my project ;D
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Post by rj2para (Bisto) on Dec 24, 2011 10:56:24 GMT 1
Hi noakira,
hope you don't mind me moving your post. Not quite electrical but an interesting idea to share mod ideas. So hence you get to be the start of a new section for the forum.
I have been rambling / dreaming of single seat options for years so you could well have created a great section.
I like the idea of a tank under the seat like on the new Honda. A lower CG could be interesting to improve handling.
Clip on bars may be lighter.
It would be interesting to weigh the side and center stand as it may be better to ditch the side stand as poss 50% weight loss and keep the centre stand for the advantages it brings.
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Post by noakira on Dec 24, 2011 16:10:41 GMT 1
This is an option I hadn't thought of, chains are lighter and more efficient than shafts. Q: I wonder if anybody has ever attempted this swap over, is it a straight swap ? [However they only last 12K so the potential fuel saving from the chain would be lost on the cost of a new chain. Its better to keep the shaft and just suffer the reduced mpg.] Aims of project...... #1 - 60mpg through modifications / weight reduction #2 - Update older tech with modern / robust equivalents (unashamedly use anything from any bike) #3 - Mods must improve maintainability / robustness #4 - Better now than when it first left the factory ! Surprised nobody picked up on the MPGuino (Arduino ecomod) ? ecomodder.com/wiki/index.php/MPGuinoWith regards front forks and wheels / rims..... Thinner, lighter wheels would have to be a consideration, any ideas ? [reduce rotational mass / rolling resistance] |
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gills
Bad ass biker
Posts: 262
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Post by gills on Dec 24, 2011 23:02:03 GMT 1
Wouldn't you need to fit FI to get the fueling/speed inputs for MPGuino? Interesting idea though. I nearly built one from a kit a few years ago for a car I had, but then sold the car before I got round to doing it! Just an idea; could you fit Deauville FI and remap it? FI would give the benefits of overrun fuel cutoff and tends to be v reliable these days. Have you thought about going down the aero route? It's likely to give considerably higher benefits than weight reduction (I assume you've seen this: ecomodder.com/blog/diy-aero-fairings-honda-125cc-motorcycle-214-mpg/?) If it's a 600 - how about the primary drive from a 650? Raising the gearing should improve mpg. I don't think it would struggle pulling it, but would obviously blunt acceleration a bit. 60mpg should be easy - I'm getting around that commuting on a standard Revere, although not riding that hard. How about 70mpg, or even 75?!! Good luck - I'll be very interested to hear how you get on. |
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Post by noakira on Dec 25, 2011 18:08:52 GMT 1
I have seen Allert Jacobs project which is of a very high quality ! But then again he is a professional, his company make the Velo bike covers. I espiecially like the VW Passat rear lenses he uses on the rear section. The most interesting point he makes is that the greatest effect comes from the fairing He has gone the "feet-forward" route which I don't think is alot different from the chest-laying-flat-on-the-tank when doing 70+ mph on t' motorway to avoid the wind. I was thinking it would be very cool to an easily detachable dustbin fairing that just sort of slide on when needed, long trips on the motorway. Some sort of lockable slider system like Travis Bickle...... What that then exactly  ...... I did notice on the link site some mention of post 96' vehicle having some sort of engine diagnostic output ? Would this be a straight swap ? |
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gills
Bad ass biker
Posts: 262
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Post by gills on Dec 25, 2011 20:04:31 GMT 1
The most interesting point he makes is that the greatest effect comes from the fairing I was thinking it would be very cool to an easily detachable dustbin fairing that just sort of slide on when needed, long trips on the motorway. Some sort of lockable slider system like Travis Bickle...... Interesting idea. The other thing to consider is a tail fairing - a lot of drag is caused by turbulence behind you. Improving this can improve drag significantly. What that then exactly ...... Sorry, Fuel Injection. Fuel injection units generate a trigger signal for the injectors. Piggybacking off this gives you a fueling input for the MPGuino unit. Not sure how you'd get an electronic input for fueling on a carb setup After '96 cars had to be fitted with an OBDII (On Board Diagnostic v.2) socket, which gives standard electronic outputs for fueling and speed, hence easier to setup with an MPGuino unit. Would this be a straight swap ? No idea, I'm afraid. I just seem to remember that all the gear ratios are the same between the 600 and 650 apart from the primary drive, which gears the 650 about 10% higher. |
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Post by rj2para (Bisto) on Dec 27, 2011 9:55:59 GMT 1
Re chain and shaft thoughts. Reading an old Motorcycle News (Aug 2011). It states: "The 2008 XL700v Transalp uses the same engine as the Deauville."Given the Transalp is chain drive. It may make a conversion easier. I will leave the technical question i.e. Would it fit, to others  Just a thought.. |
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Post by noakira on Dec 28, 2011 17:47:14 GMT 1
Gill said...... Having made a mental note of the above, I was looking at the fuel mpg logger site www.fuelly.com/motorcycle/ one bike that is in the top ten is GPz 500s. I think the design of the fairing on the GPz especially the large surface area of the rear section as well as the general flatness of curves might be helping here. Perhaps a half sealed / covered rear tyre ( ala the deauville without the bulbous paniers). I always thought the deauville should come with flushed detachable panniers for general day to day riding. I wonder how hard it would be to get a GPz fairing to fit the Revere (I do like the look of the fully flushed quare headlight) ....? |
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Post by thatsawkward on Dec 28, 2011 20:11:29 GMT 1
Gill said...... Not sure how easy/difficult it would be to fit a GPZ fairing on the NTV. Obviously, brackets and headlight etc. wouldn't be that complicated if you're quite good at that sort of thing (I'm not really). The key thing would be to ensure overall fitment is possible (ie width, bar and tank clearance etc.) as the GPZ500 is a very narrow bike. An alternative might be something like the Powerbronze Cobra (which I know can be supplied with the NTV fitting kit). I'm pretty sure it comes with the replacement lights (hence the high price!) to replace the NTV single lens. www.powerbronze.co.uk/899747/818248/831889/FAIRING---COBRA---BLACK.itemObviously not cheap, but Powerbronze fairings do come up sometimes on eBay, and having dealt with Powerbronze recently they are very helpful and can supply the fitting kits separately. |
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