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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> The Cafe >> HP vs torque... /cgi-bin/YaBB.pl?num=1455811145 Message started by Serowbot on 02/18/16 at 07:59:05 |
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Title: HP vs torque... Post by Serowbot on 02/18/16 at 07:59:05 Well,.. that explains it... ;D... http://i600.photobucket.com/albums/tt82/serowbot/488d57e3-2e67-42f9-9041-d48f5ec20029_zpsnqexg2zq.png |
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Title: Re: HP vs torque... Post by Art Webb on 02/18/16 at 08:01:38 ;D ;D |
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Title: Re: HP vs torque... Post by LANCER on 02/18/16 at 08:31:07 I like that shirt ! |
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Title: Re: HP vs torque... Post by verslagen1 on 02/18/16 at 08:58:09 Seem to me... Horsepower is how fast you get there, but Torque is the amount of rubber you've left. |
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Title: Re: HP vs torque... Post by Serowbot on 02/18/16 at 09:12:11 392A3D3C232E282A217E4F0 wrote:
So, you don't do the crashing part... very clever... 8-) |
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Title: Re: HP vs torque... Post by springman on 02/18/16 at 10:03:51 OK, I have a question. If we have so much low end torque, why will my back wheel not spin out on dry pavement when gunning it from a stop? |
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Title: Re: HP vs torque... Post by verslagen1 on 02/18/16 at 10:17:08 7477756E69606A6669070 wrote:
bring the rpm's up to 4k then drop the clutch like a hot potato. but due to the 140 tire, you're more likely to pop a wheelie. ;D http://i255.photobucket.com/albums/hh128/russ_diamond_jim/dynorunS40dj.jpg |
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Title: Re: HP vs torque... Post by springman on 02/18/16 at 10:18:45 I'll report back to you on this one. Thanks. ;D |
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Title: Re: HP vs torque... Post by Dave on 02/18/16 at 10:26:55 455641405F5254565D02330 wrote:
Bring the rpm's up to 4k then drop the clutch like a hot potato.;D [/quote] Your wife must be there....with the video camera! |
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Title: Re: HP vs torque... Post by justin_o_guy2 on 02/18/16 at 10:35:14 Watched a video, read stuff, and I think I like this one the best, but do look for the kid and the drawings,, Good primer. http://www.onpointdyno.com/?p=3306 |
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Title: Re: HP vs torque... Post by old.indian on 02/18/16 at 10:37:53 786B7C7D626F696B603F0E0 wrote:
bring the rpm's up to 4k then drop the clutch like a hot potato. but due to the 140 tire, you're more likely to pop a wheelie. ;D http://i255.photobucket.com/albums/hh128/russ_diamond_jim/dynorunS40dj.jpg[/quote] :-?Question : What modifications where done on this engine ?????? :-? |
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Title: Re: HP vs torque... Post by verslagen1 on 02/18/16 at 10:43:00 63606822656268656D620C0 wrote:
bring the rpm's up to 4k then drop the clutch like a hot potato. but due to the 140 tire, you're more likely to pop a wheelie. ;D http://i255.photobucket.com/albums/hh128/russ_diamond_jim/dynorunS40dj.jpg[/quote] :-?Question : What modifications where done on this engine ?????? :-? [/quote] I don't believe DJ did anything other than jetting, some intake filter mods, some exhaust mods. |
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Title: Re: HP vs torque... Post by Dave on 02/18/16 at 10:55:00 The thing you should pay attention to......is that the DYNO sheet shows that the Savage engine is making a lot of torque by 2,500 rpm.....and the torque is strong from 3,000 up to 5,000 rpm. Multiple cylinder engines don't make toque at those low revs. (unless it's a diesel). |
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Title: Re: HP vs torque... Post by jcstokes on 02/18/16 at 12:30:20 Why do we need to spin the back wheel? |
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Title: Re: HP vs torque... Post by gizzo on 02/18/16 at 12:36:53 Because we can ? |
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Title: Re: HP vs torque... Post by Dave on 02/18/16 at 12:53:10 434A5A5D46424C5A290 wrote:
Because it's "Bad Ass"....... :-? Ask Sluggo! https://www.youtube.com/watch?v=E4pnqtSfqcM [media]http://www.youtube.com/watch?v=E4pnqtSfqcM[/media] |
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Title: Re: HP vs torque... Post by springman on 02/18/16 at 14:45:35 Dave, wife is out of town so no video. ;D |
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Title: Re: HP vs torque... Post by Serowbot on 02/18/16 at 16:25:11 7B404D5A4B475C5A4149445B280 wrote:
Because it's "Bad Ass"....... :-? Ask Sluggo! [/quote] That's the thing to do,.. when your tire's completely gone, and you really hate yer' neighbors... ;D |
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Title: Re: HP vs torque... Post by MMRanch on 02/18/16 at 17:58:06 The last bike before my first Savage was a KZ750 4cylinder and it had HP. ::) I think I like the toque better ! 8-) Years ago I had a SX-650 Yamaha , I think it was only 54HP but it had plenty of toque. Most of my buds back then had 750 Honda's , and they all would have to down shift a couple gears to keep-up when I'd do a high gear acceleration . The SX-650 had good toque ! :) |
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Title: Re: HP vs torque... Post by Art Webb on 02/18/16 at 18:16:19 0A313C2B3A362D2B3038352A590 wrote:
not true My XS 1100 could be accelerated smoothly and strongly out of a tirn at any RPM over 2k it was one of the most tractable engines I ever experienced |
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Title: Re: HP vs torque... Post by MMRanch on 02/18/16 at 20:03:36 Art So the 1100 was a long stroke ? I rode my SX-650 next to a feller on a Triumph 650 single carb chopper. We went from Jacksonville FL. to San Antonio , TX. Well his bike would high-gear pull away from mine , much to my surprise ! I looked up the numbers on the Triumph next chance I got -- it had small pistons and a long stroke . You know what ? Every time we would fuel-up , mine would need time and a half what his did (The Yamaha only got in the 30's mpg.). ;) |
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Title: Re: HP vs torque... Post by Dave on 02/19/16 at 05:12:12 6E7D7B786A6D6D0F0 wrote:
not true My XS 1100 could be accelerated smoothly and strongly out of a tirn at any RPM over 2k it was one of the most tractable engines I ever experienced[/quote] There is no doubt that big engines can make torque.....but I have no doubt the XS1100 made a lot more torque at 6,000 rpm than it did at 2,000 rpm. The point that I was trying to make is that our big single has nearly all of the torque available by 2,500 rpm.....and that doesn't happen on engines with multiple cylinders (same displacement). A 650cc single is going to make more low end torque than a 650cc twin. There is no doubt that a Harley V-Twin makes a lot of torque.....they do that by bolting two big singles together to make a V-Twin! There is a new breed of bike out today.....they are made to have a big flat torque curve that doesn't require a lot of gear changes when riding. Most of them are big twins like the Yamaha MT01, Suzuki M109, Moto Guzzi Audace, BMW 1200R. http://www.lazymotorbike.eu/technical/torque/ |
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Title: Re: HP vs torque... Post by Art Webb on 02/19/16 at 06:34:41 657765777A69666B60280 wrote:
I don't know the bore x stroke, but that's probably a good bet All the moto mags of the time were as impressed as I was |
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Title: Re: HP vs torque... Post by Art Webb on 02/19/16 at 06:55:00 566D6077666A71776C646976050 wrote:
not true My XS 1100 could be accelerated smoothly and strongly out of a tirn at any RPM over 2k it was one of the most tractable engines I ever experienced[/quote] There is no doubt that big engines can make torque.....but I have no doubt the XS1100 made a lot more torque at 6,000 rpm than it did at 2,000 rpm. The point that I was trying to make is that our big single has nearly all of the torque available by 2,500 rpm.....and that doesn't happen on engines with multiple cylinders (same displacement). A 650cc single is going to make more low end torque than a 650cc twin. There is no doubt that a Harley V-Twin makes a lot of torque.....they do that by bolting two big singles together to make a V-Twin! There is a new breed of bike out today.....they are made to have a big flat torque curve that doesn't require a lot of bear changes when riding. Most of them are big twins like the Yamaha MT01, Suzuki M109, Moto Guzzi Audace, BMW 1200R. http://www.lazymotorbike.eu/technical/torque/ [/quote] with no access to a dyno, I can't tell you ezact # at 2k Peak torque was 65 lb ft at 6500 RPM Savage engine's peak torque is at 3 or 4k IIRC Savage redlines at 6500 or 68, I forget which, XS redlined at 8500 top gear was similar for both bikes, with the S40 spinning 4k or so at 70 I do believe, and the XS spinning 4k at 70 as well the XS would pull smoothly out of a turn at 25 MPH in 5th gear, and that's with the parasitic losses of a shaft drive tMy S40 would not This is based on riding the two bikes back to back on the same roads, often on the asmae days you didn't say multis don't make most of their torque at 2k, you said they don't make torque at 2k for most multis that's true, the XS, and a few other multis over the years, though, have shown that they can even the moto mags were shocked at how much grunt it had down low there was a definite bump at 65K, if you were brave enough to keep the throttle open, but it was power everywhere yes, the S40 will pull a multi of similar CCs, off the line,, because it's 1 pisotn is 2x the size, or even 4x the size, of the one in the multi, and it is a long stroke motor, built for torque, but if it's designed to, a multi can make torque at 2K |
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Title: Re: HP vs torque... Post by verslagen1 on 02/19/16 at 07:24:07 http://www.xs11.com/images/stories/81lh-ad.jpg |
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Title: Re: HP vs torque... Post by justin_o_guy2 on 02/19/16 at 12:51:09 I Like bear changes. I Still don't think I really understand how it really works. As one guy points out, with HP, and gearing, acceleration is available. With HP, top speeds are available, with gearing.. He didn't say torque was immaterial, not at all. I think I Enjoyed the torque of the Savage, but I tended to keep it wound up more than I cruised at low speeds in higher gears. I'm not sure What I liked about it, but, whatever it was, I sure liked it a lot. And the best car I ever had was a 78 Grand Prix, and I had a Z 28 once, I'll take the Pontiac. I'm hoping to get the title straight on the W 650. Should that work out, I think it's gonna be my Forever bike. Maybe not as quick and snappy across town, but , no cam chain, shims on the valves. Pretty much, gas, oil, tires... And chain, AND sprockets... inspiration to Not accelerate too hard. |
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Title: Re: HP vs torque... Post by Art Webb on 02/19/16 at 18:49:16 Nice find Versy Mine was the standard, not the midnight special, but the engine specs are the same |
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Title: Re: HP vs torque... Post by verslagen1 on 02/19/16 at 19:05:25 wasn't hard to find, but it was the 1st with all the info. |
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Title: Re: HP vs torque... Post by Art Webb on 02/19/16 at 19:15:30 I don't see HP, it was 95 @ 8500 the standard had a slightly different frame, euro bars, a flatter seat, and a larger tank |
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