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Author Message   Grizzlyb Posted on Friday, September 27, 2002 - 05:55 pm:        Josh and X1slider, The rest of the world is thinking in Newton...I dont know why You guys want to have that in gbullbflt or what ever, but here it is 103.8 NM torque is 76.55 lb/ft You'll come around to the civil way of thinking soon I hope. :+) Grizzly   Aaron Posted on Friday, September 27, 2002 - 08:07 pm:        Y'all would sure make it easier on yourselves if you just give in now and come around to the American way of thinking BTW ... I know I sound like a broken record ... but torque by itself is not a performance metric. It's possible to make a million foot/lbs of torque (or newton-meters if you will) and have no performance at all. It matters not how hard you're pushing, if you're pushing slowly. Hell, I can make a million foot/lbs of torque with a battery powered drill motor if I apply enough gear reduction. It'd move awfully slow though. Torque is only meaningful for performance when you consider it in conjunction with how fast (rpm) you can generate that torque. The metric that gives the combination of torque and rpm is horsepower. When we talk of high torque from these bikes, really all we're saying is that they make their power without turning much rpm. BFD. Anyhoo, Dave, here's your dyno sheet ... Unbeknownst to me until I saw this bike, a stock '95 S2 7-pin module kicks in a buttload of retard (another 'merican measurement unit) at 5300rpm or so, and then has a hard limiter at about 6200rpm. We swapped on another '95S2 module and it did the same thing. Then I stuck on a Screaming Beagle Selectable job (relabeled Dyna 2000) and got the blue pull. That pull is curve 4, we tried all 4 and 4 was the best. The fact that it's better even below the limiter suggests that the timing isn't right with the stock piece, too.   Court Posted on Saturday, September 28, 2002 - 08:46 am:        It matters not how hard you're pushing, if you're pushing slowly. Example: The motor that turns the Space Needle in Seattle. 77,000 ft/lbs of torque & 0.5 Horsepower. I am uncertain if it's ever been raced. Court   Phillyblast Posted on Monday, September 30, 2002 - 09:33 am:        Court, I'm sure with a race ecm we could get the rpms up on the Space Needle and get a few more ponies from it. Please note a "buttload" is notated Bland is equal to SL B What Aaron is showing in the chart was noticeable SOTP, but in normal riding I don't spend a lot of time over 5K, and hadn't paid much attention to it. At elevation on Friday's ride, I had to keep the revs up over 4k to make any power, and it became very noticeable. I'm going to switch out the module with an SE over the winter, and judging from the chart I might want to switch out the cams with some Lightning units.   Hootowl Posted on Monday, September 30, 2002 - 09:38 am:        So I'm eating my $50 dime sized steak at the restaurant in the Space Needle, and every 20 minutes or so, McDonalds goes by. Damn. Shoulda had Mickey D's.   Reepicheep Posted on Monday, September 30, 2002 - 02:59 pm:        And I would argue that peak horsepower is just as useless a figure as torque... unless you are trying to set landspeed records Rather, for a street bike anyway, it is the power curve across the entire comfortable RPM range of the engine. A 600 cc inline four that produces 85 horses feels totally different then my long stroke tube framed Buell producing 85 horses... so much so that it seems silly to even compare the two bikes. But every time I try to bring it up, it seems to require a three hour physics and calculus lesson to actually get all the details across. So I just say "yeah, it lacks top end power but has great low end torque", and people tend to understand what I mean (even though what I said is mainly meaningless). Bill   Tripper Posted on Tuesday, October 01, 2002 - 12:02 am:        oops   Tripper Posted on Tuesday, October 01, 2002 - 12:07 am:        iluvmytork   Blake Posted on Tuesday, October 01, 2002 - 01:03 am:        Trip, Please post details. You know, all the performance goodies and such?   Josh Posted on Tuesday, October 01, 2002 - 10:44 am:        98 S1WL. 11,000miles. Race header, race ignition, with 5" Supertrapp (automotive). Hypercharger vs the Race Aircleaner: (note that we didn't bother to troubleshoot the HyperCharger, it may have been blocking the bowl vent) 98 S1WL. 11,000miles. Race header, race ignition, with Race Air cleaner. 5" Supertrapp (Automotive, not all that many disks but I didn't count them) vs Stainless Specialties 'glasspack contruction (19" over all length, 2.5" inlet/inner core, 4" body 3" outlet) 99 S3T vs 98 S1WL Both have modified air cleaner (gutted stock w/K&N vs Race kit), race ignition, race header, and a 'glass pack muffler (WestTek vs Stainless). They were run on different dyno's (same make/model) on different days (S3 was on a much hotter day) at different altitudes (S1 was not jetted for its altitude). S3 has Nallin Stage 1 heads. And yes they feel very similar, but the S3 walks away top-end.   Rippin Posted on Wednesday, October 02, 2002 - 12:07 am:        Frank, Ya gotta get a hold of me. My outgoing mail don't work. Crud Run is this Sunday. Hoover and us want to make sure your going! I know you have your bike I talked to Brian N today. Call me at work or let me know here 815-625-3300 Thanks Ryan   Aaron Posted on Sunday, October 13, 2002 - 09:19 pm:        '00 M2 owned by T. San Miguel V&H muffler Forcewinder (hogged out bowl vent) Blue = before tune-up Red = after tune-up   Reepicheep Posted on Monday, October 14, 2002 - 09:33 am:        Aaron.. was that mainly a result of jetting, or did the timing get played with to get that 10 (!) hp boost? (or was it mainly just the forcewinder vent thing messing him up) Man. Wish I were about 2000 miles closer to Colorado. Bill   Aaron Posted on Monday, October 14, 2002 - 10:05 am:        It was entirely the Forcewinder vent and subsequent jetting corrections. The timing, which was still right where the factory put it, was spot on.   Peter Posted on Saturday, October 26, 2002 - 12:23 pm:        Home dyno?   Ken01mp Posted on Monday, October 28, 2002 - 07:36 pm:        somebody buy one and let me try it. seems like it would be at least close to realistic. maybe someone with a real dyno could do a comparo for accurracy (hint hint Aaron). Ken   Forevernow Posted on Tuesday, November 12, 2002 - 12:14 am:        99 m2, force pipe, race ign., forcewinder, jetting changes between runs   Forevernow Posted on Tuesday, November 12, 2002 - 12:42 am:        '99 M2 Cyclone, forcewinder, streetfighter pipe, race ign, nallin hurricane pistons, 536 SE cams w/springs, no head work yet   Blake Posted on Tuesday, November 12, 2002 - 10:47 pm:        Forevernow, Something tells me that your Forcewinder is suffering from the too small breather cavity. Have you checked it? See Aaron's report on that issue. (Page down a little from the top till you see the subtitle "UPDATE 3-31-02 >>>".   Aaron Posted on Tuesday, November 12, 2002 - 11:07 pm:        The a/f curve going leaner at high rpm like that *could* indicate a bowl vent issue, or possibly just a really fat needle. I'd sure do some pulls without the air cleaner on there and see what it does.   Forevernow Posted on Tuesday, November 12, 2002 - 11:46 pm:        soon after i bought the forcewinder i read about the bowlvent issue(thanks aron & bwb)and ported it out a little,after this kind of disapointing dyno run i decided to open it up a little more and i cut a matching opening in the carb bracket to open up the space a little more,i also noticed that they had the fuel line kind of pinched between the carb and head so i put on a new fuel line and routed it differnetly,i want to bring it in for some more runs but it might wait till spring,winter sucks.   X1glider Posted on Tuesday, November 19, 2002 - 03:45 pm:        Alright, my searches turned up everything but what I was looking for. I am looking for a dyno run on an X1 with the K&N filter, race ECM and pro-series full exhaust. Anyone know where to find it if it's in here? Thanks.   Blake Posted on Wednesday, November 20, 2002 - 01:04 am:        Try checking out the factory X1 Race Kit dyno results   X1glider Posted on Tuesday, December 03, 2002 - 10:35 pm:        If anyone is curious to what a bone stock V-Rod will do at sea level:   Rick_A Posted on Wednesday, December 18, 2002 - 11:58 pm:        I recently dynoed my S1 with a load of extra disks on my 'Trapp...from 15 to 22. I have no scanner here so I'll break it down. It gained 1 peak HP and 2 peak ft-lbs of torque...but that was all moved further down the rev range. In torque I lost about 10 ft-lbs on the low end and gained that couple in the mid rpm range. The HP dropped off a little later than before...all in all the power feels more progressive...meaning I have to rev higher and slip the clutch to make hard launches...and wheelies happen full song now so the wheel comes up frighteningly fast...so I don't do them very often anymore. My bike is basically stock with carb mods, race system with a Supertrapp, and an S&S airfilter. I'm going back to my 15 disc stoplight/wheelie power today. There's so many stop lights here that I must make use of the big fat low end torque. I'm done with chassis mods to this bike...so when I can afford it...good things will happen to this engine   Aaron Posted on Tuesday, January 07, 2003 - 05:37 pm:        I had occassion to be generating this chart today and I found it interesting and I thought I'd share it, FWIW ... These are 3 different dyno pulls on the same '99 M2. The blue was in March of last year, I believe he had a Daytona Boss on the stock header at the time. The red pull was in April, after he had installed some Lightning cams, no other changes. The green pull was in September, after he had installed a Force exhaust, again with no other changes. Contrast that result with how the Force pipe affected a different M2, this one a 2000 model with stock cams in it: Blue is a Vance and Hines pipe, red is a Force pipe. He got the opposite result! Just an example of how important it is to match components to each other.   Petel Posted on Thursday, January 23, 2003 - 02:32 pm:        Might like to see this (if it works;-)   Petel Posted on Thursday, January 23, 2003 - 02:45 pm:        Sorry, it`s not too clear, my scanners fault. Max HP engine 91.1 at 6093 gearbox 86.7 Wheel 84.0 Max torque engine 12.0/87ftlb at 4314 gearbox 11.5/84ftlb wheel 11.0/80ftlb. 2002 UK M2 Cyclone standard-ish. http://homepage.ntlworld.com/peteh1/website/buell.html Regards, Pete in the UK.   Mikep Posted on Friday, January 24, 2003 - 02:57 pm:        XB dyno run? Does anyone know which archive houses a dyno run for an XB? mikeyp   Mikep Posted on Friday, January 24, 2003 - 03:45 pm:        XB Dyno Chart = 'Archive Through August 3, 2002' Found it! There is a Stock XB dyno run, by 'Sparky', in the 'Archive Through August 3, 2002'. Here it is: Thanks, mikeyp (Message edited by blake on May 06, 2005)