| Author | Message | ||
     Aaron |
Hmm, I'm not at all sure I'm the right guy to be answering those questions. My understanding of it tracks what you're saying, though. There's a whole lot of "ifs" in number 2, though. | ||
| Blake |
Think of a flywheel as a big capacitor, torque as voltage, and rpm as current. It's a direct analogy. Pretty much everything José says is valid. A higher inertia flywheel would increase initial power available for launch but would then suck it up again plus more as you spun up the engine accelerating through the gears. When you cross the line at a higher rpm than at launch you've stored excess energy. A lighter flywheel is better!  | ||
| Bigun283 |
rapid49 you said you were going to put total seal rings in your bike. where would you get some of those. i am putting hurricane pistons in my bike and want to use the best. | ||
| Aaron |
Nallin will sell you Total Seals, either conventional or gapless. Be aware that gapless rings are somewhat controversial, it's certainly not a unanimous view that they're a good thing. | ||
| Peter |
Aaron, What are the negative reasons? PPiA | ||
| Aaron |
Peter, I ain't going near that. | ||
| Rapid49 |
Bigun, when I saw that Nallin included Total Seal rings with his 1250 kit I assumed that they were of the gapless second ring variety. When I inquired about this he told me he used Total Seal but the rings that came with the kit were not gapless. Brian said he could sell me gapless as an option but it would be the top ring that was gapless.This is fairly new for Total Seal to have the top ring gapless.I am a total rookie to v twins but I have had much success with the gapless in small block chevys (circle track ,many trophys on the shelf).I told Brian I would prefer to pay the extra even though in his opinion were not needed to get a good seal with the millenium cylenders, wich stay rounder and more stable than conventional cylenders. In the end the gapless rings were back ordered and I could not get them in time.The next time I have this baby apart I will not hesitate to put in the gapless , that is my opinion for what it is worth. Evan | ||
| Skulley |
What is needed to turn an 883 into a 1203? Neighbor may want my X-1 parts to upgrade his lil sporty when I Nallinize. | ||
| X1glider |
883-1203: All you need is to bore the cyclinders out (or new ones) and bigger pistons/rings plus a top end gasket kit. HD makes a conversion kit that comes with everything needed. It's a good deal, real cheap. He can use his old heads still. HD uses the same heads for 883 and 1203. It's actually $2k cheaper to get an 883 and convert it than to get the 1200 to begin with. Buell heads and cams do real well in the HD conversion as well from what many have told me. I thought of doing this to a 883R (dirt track look-alike). Fun bike. | ||
| Aaron |
You have to do something to correct the compression ratio on an 883-1200 conversion if you retain the 883 heads. Either relieve the chamber or use a dished piston. A standard 1200 flat top in there will give you very high compression after the conversion. | ||
| X1glider |
The upgrade kit is indeed a "high compression" kit. The pistons are dished and the compression ratio jumps from 9.0:1 to 10.0:1 with the stock heads. Other than the re-jet and using 93 oct, all that I would recommend is a programmable ignition. Plenty of those out there. Naturally, some head work or different cams will help fill the cylinders better. Even so he can realize 78 lbs of torque (at the crank) just like the stock 1200. | ||
| Jim_M |
Blake, Here's one for you, would the increased mass of the stock XL flywheel (v. the S1 flywheel) be able to store/absorb the vibrational energy from the combustion process (I'm pretty sure that I'm using the wrong terms here, but hopefully you can follow)?  | ||
| Skulley |
If I sell my neighbor my X-1 heads, juggs, pistons for his 883, will they turn key work? He has the SE 883 kit now. Are cam or rod modifications nessary with the lightning parts? Just a gasket set and a few hours work, right? Whats the stock 1200 conversion kit cost? I need a price range to hit him with. | ||
| Jssport |
Skulley, Your X1 top end will bolt right up to his sportster cases, the only difference will be the top forward motor mount, different size but that is easily overcome. Don't forget to figure the costs of TS heads in show him the cash he's saving going this route. | ||
| Sportyeric |
The M2 uses TS heads and stock Sportster cams, right? Your Sporty neighbour would get basically that power range. The 883 ignition module could be swapped out for BHR's stock unit for a very fair price. And there's a set of X1 cams on E-bay right now for a hundred bucks. Then I'll make him some rearsets and clip-ons and he can smoke all his Buell riding friends and neighbours.  | ||
| S1blackie |
Question? what should be the normal % reading in a leakdown test of a new ts topend.does 4% sound right? the reason I ask is, after the new top.The bike smokes when you let off the gas. Is the problem likely sloppy porting ? nicking a guide? or rings not seated? The readings are 4%Front 10%Rear and compresion test of 195 | ||
| Sportyeric |
Duane. You still trying to get up and running after the evil granny incident?!!! I think you're showing signs of a buggered intake valve guide seal, which, left untreated, will cause major carbon build up (and stinky exhaust for me to inhale but I've got the cure for that this year.) | ||
| Blake |
Compression sounds high, possible carbon deposits buildup. 4% leakdown is good, 10% is high. The smoke on closed throttle is oil getting pulled past the rings. If you noticed this on the dyno, I wouldn't sweat it too much. If you noticed smoke during normal riding, you either need to let her break in some more, or get the problematic 10% leakdown fixed. Teh tech should have been able to tell where teh leak was occuring by listening to breather, intake, and exhaust. If hissing is evident in intake, your intake valve isn't seating well; if at exhaust it's the exhaust valve seat. If hissing is evident at breather outlet it's rings/cylinder wall. | ||
| S1blackie |
Thanks Blake, the smoke was present while riding. Now the shop at fault will have to fix and eat the bil. Oh and sorry about asking the same question in two separate categories. Eric, yeah it sounds like the mods you made are puting you up front  and I thought you were fast before. See ya on the next ride. Say no to smoke! unless its tire smoke!! | ||
| Jadow |
Anyone know of a dealership or Company who will rebalance a set of 2000 press-in pin flywheels? I have changed pistons to Wisco 3.750..They are lighter than stock and have moved the balance factor to a higher RPM so street riding is no fun. There is no one in Charleston,SC who can take them apart,Balance and reassemble better than factory. Names and Phone # needed. Thanks, Jadow | ||
| Peter |
Jadow, Ring Brian Nallin and check with him. We were talking about it last year at Bonneville, and he told me the name of a shop that does it, (I think with the rods still on) but I don't remember who they were anymore. PPiA | ||
| Vwolf |
Hello.Name is George.I am a Windy City Brag member.I have a 2000m2.I was hoping to get a helpful comment about my bike.I was doing a look over before a run and noticed my oil lines had too much wear.I decided to replace them.I have been able to do that easy.(well sorta)But then I removed the gearcase to get a better grasp of the task and did not realize (manual?) I opened the cam gears.I really thought I would leave them under the push tubes.I did not damage anything, and dont see any thing worn.My question is "do I need experenced help putting the cams back in the gearcase" or is this something much more than a band aid so to say?Thanks in advance.I only ask cause I have a run this weekend and the shop can not get to it till much later... Vwolf | ||
| Sportyeric |
If the cams remained in position in the engine when you took the cam cover off, you could probably just slide the cover back on (with a new gasket, of course.) If the cams came out, then you will have to take off your rocker box covers and rockers to relieve the pressure from the valve springs on the lifters. If the cams came partly out, could they have rotated so that they aren't in proper relative position? | ||
| Blake |
VWolf, If the cams are out, I would strongly suggest that you have an experienced tech reassemble your engine. | ||
| Aaron |
Or at least get a shop manual. | ||
| Vwolf |
Wow three great replys..thanks..I have a service manual..#99491-00y..is that the same as a shop manual?In any case the cams did fall out..not as expected..soo I will wait to get in the shop then.Thanks a bunch Eric,Blake,Aaron, Vwolf | ||
| Blake |
Yes, shop/service manual are the thing. | ||
| Vwolf |
Eric,Blake,Aaron, the chucking (laughing) is all over with and the M2 is at the shop in good hands.It is better to have it at the shop then home because I would have never added all the things I wanted to the bike sitting here at home in the kitchen.I asked to have the exhaust studs replaced,pipes plated in teflon,and a custom axle from the Hd dealer here made of titanium.Oh and to check my work. thanks dudes! Ill let ya know how the inspection run goes.. Vwolf Chicago SouthSide <<< Insane Clown Posse? | ||
| Blake |
Teflon coated pipes, titanium axle??? You are kidding right? | ||
| Caboose |
Well my rear rocker box gasket cashed in its chips right on schedule. Leaking pretty good from the rear left corner of the box. Are these things covered under warranty? |
