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Main Area => General GS500 Discussion => Topic started by: nick_villan on March 27, 2006, 01:18:41 PM

Title: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 01:18:41 PM
hey i read in motortred that the 1/4 mile for our bikes is 13.65 on a stock bike, any truth to that, if so can it hit low 13?
Title: Re: 1/4 mile time.
Post by: annguyen1981 on March 27, 2006, 01:26:54 PM
Sounds about right.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 27, 2006, 01:28:27 PM
Quote from: nick_villan on March 27, 2006, 01:18:41 PM
hey i read in motortred that the 1/4 mile for our bikes is 13.65 on a stock bike, any truth to that, if so can it hit low 13?

13.65 is from some of the best riders. I doubt you could even HIT in the 13s without a LOT of practice. If you want a bike that goes fast in a straight line, just get a new bike.
Title: Re: 1/4 mile time.
Post by: annguyen1981 on March 27, 2006, 01:33:52 PM
Quote from: AlphaFire X5 on March 27, 2006, 01:28:27 PM
Quote from: nick_villan on March 27, 2006, 01:18:41 PM
hey i read in motortred that the 1/4 mile for our bikes is 13.65 on a stock bike, any truth to that, if so can it hit low 13?

13.65 is from some of the best riders. I doubt you could even HIT in the 13s without a LOT of practice. If you want a bike that goes fast in a straight line, just get a new bike.

+1
Like a 'busa
Title: Re: 1/4 mile time.
Post by: My Name Is Dave on March 27, 2006, 01:46:04 PM
I'm mostly curious about where you scored this MotorTrend. Is it a really old one? And why were they mentioning the GS?
Title: Re: 1/4 mile time.
Post by: Phaedrus on March 27, 2006, 04:42:17 PM
Quote from: 2005-GS500-PDX on March 27, 2006, 01:46:04 PM
And why were they mentioning the GS?

:laugh: +1. I am always on the lookout for the GS being mentioned in a motorcycle magazine. It seldom is.
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 04:46:04 PM
Well i am going to race for pinks and I wondered if the GS would be a good bike for this?????? :laugh: :laugh: :laugh:
Title: Re: 1/4 mile time.
Post by: annguyen1981 on March 27, 2006, 06:20:11 PM
Quote from: ajgs500 on March 27, 2006, 04:46:04 PM
Well i am going to race for pinks and I wondered if the GS would be a good bike for this?????? :laugh: :laugh: :laugh:

Buh Bye GS! :icon_razz:
Title: Re: 1/4 mile time.
Post by: FearedGS500 on March 27, 2006, 06:24:46 PM
13.65 must be a naked empty gs . would have to be .  i'v had my bike to a 14.4 (05f ) and i was getting faster and faster each run . so i'm pretty sure i could probly hit a 14.00 flat ... maybe ... i had about a gallon in it when i was there so ...
Title: Re: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 08:08:28 PM
it was on a recent issue, they have most times posted on the back of their magazine. and yes it was a gs500e. I dont want to trade bikes, love my gs to much, just want to make it better at drag.
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 08:10:49 PM
Quote from: nick_villan on March 27, 2006, 08:08:28 PM
it was on a recent issue, they have most times posted on the back of their magazine. and yes it was a gs500e. I dont want to trade bikes, love my gs to much, just want to make it better at drag.

Well I know a few queens who may be able to help you out.  :laugh: :laugh: :laugh: :laugh: :laugh: :laugh:
Title: Re: 1/4 mile time.
Post by: leo on March 27, 2006, 08:15:21 PM
The listing is in the back of every Motorcyclist magazine.
Title: Re: 1/4 mile time.
Post by: runsilent on March 27, 2006, 08:24:28 PM
That 13.65 was from a GS500/EX500 comparo test in the 10-01 issue of Motorcyclist.  It was typical of published test figures prior to that.  Starting with the 02 model and then the F models the published quarter times have been more like 14.5 seconds.

http://img.photobucket.com/albums/v443/jcp8832/GS500tests.jpg

Title: Re: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 08:25:53 PM
hey what do you mean by queens, no im not going to use a turbo, i awant it to  be street legal 2.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 27, 2006, 08:27:39 PM
Quote from: nick_villan on March 27, 2006, 08:25:53 PM
hey what do you mean by queens, no im not going to use a turbo, i awant it to  be street legal 2.

drag... queens...
Title: Re: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 08:30:11 PM
still dont get it was is drag queens?
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 08:33:38 PM
YES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! geez
Title: Re: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 08:38:06 PM
ur not making sence what is drag queens?
Title: Re: 1/4 mile time.
Post by: Chris_B on March 27, 2006, 08:39:20 PM
Haha.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 27, 2006, 08:39:46 PM
(http://www.mccullagh.org/db9/1ds-3/drag-queen-folsom-street-2.jpg)

Yeah, that pretty much sums it up right there.
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 08:42:00 PM
Quote from: nick_villan on March 27, 2006, 08:38:06 PM
ur not making sence what is drag queens?

And which rock have u been living under????
Title: Re: 1/4 mile time.
Post by: Onlypastrana199 on March 27, 2006, 08:43:19 PM
God Alpha my eyes!! I need those to ride!!!!!!
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 08:51:00 PM
Just in case anyone is still confused............

http://en.wikipedia.org/wiki/Drag_queen
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 27, 2006, 08:54:25 PM
Quote from: AlphaFire X5 on March 27, 2006, 08:39:46 PM
(http://www.mccullagh.org/db9/1ds-3/drag-queen-folsom-street-2.jpg)

Yeah, that pretty much sums it up right there.




PANDY PANDY!!!!
CENSOR CENSOR!!!
Title: Re: 1/4 mile time.
Post by: nick_villan on March 27, 2006, 09:20:43 PM
yo that is fuking disguting, screw u guys. :flipoff:
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 27, 2006, 09:23:03 PM
At least Alpha knows what a drag queen is.  :flipoff: :flipoff: :flipoff: :flipoff: :flipoff: :flipoff:
Title: Re: 1/4 mile time.
Post by: annguyen1981 on March 27, 2006, 09:24:37 PM
I think I wen t blind...  I can't
type..... :o
Title: Re: 1/4 mile time.
Post by: FearedGS500 on March 28, 2006, 12:22:48 AM
awww alpaha .! your stick plan sick . as far as making your gs faster . the only way i see doing that is having the heads shiped off have them bored and ported. fork up the extra cash for an exaust ( if you can find one that really  helps ) theres stuff you can do out there. its just having the funds to do it . i know when i get mine paid off . or when the warnty is up i'm gonna have it sent off to have it bored and ported .. i'd be happy with a 10sec. gs :P not sure if thats possable. i just want it to be a sleeper :) ppl be like .. oh its only a 500 ........... then zip .
Title: Re: 1/4 mile time.
Post by: nick_villan on March 28, 2006, 05:09:38 AM
ya thats what i want to do, make a sleeper 2
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 07:34:03 AM
Quote from: FearedGS500 on March 28, 2006, 12:22:48 AM
awww alpaha .! your stick plan sick . as far as making your gs faster . the only way i see doing that is having the heads shiped off have them bored and ported. fork up the extra cash for an exaust ( if you can find one that really  helps ) theres stuff you can do out there. its just having the funds to do it . i know when i get mine paid off . or when the warnty is up i'm gonna have it sent off to have it bored and ported .. i'd be happy with a 10sec. gs :P not sure if thats possable. i just want it to be a sleeper :) ppl be like .. oh its only a 500 ........... then zip .

A 10 second GS is highly unlikely. You'd have to do some serious engine modification to get that sort of power out of it. 4 valve head, bigger and higher compression pistons, liquid cooling, port and polish, blueprint. Even then you will only be pushing around 50, maybe 55HP at the wheel. There's a guy on here with a 628cc GS racebike that puts out 68HP at the wheel, IIRC. That is some serious engine modiication, and even THAT probably won't run into the 10s. 12s, maybe.
Title: Re: 1/4 mile time.
Post by: MPA on March 28, 2006, 09:10:38 AM
Do the F's fairings weigh that much to go from a 13.65 to a 14 second bike?
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 09:22:52 AM
Quote from: MPA on March 28, 2006, 09:10:38 AM
Do the F's fairings weigh that much to go from a 13.65 to a 14 second bike?

They brought the dry weight from 372 to 396. So, 20 some pounds. Why do you think I went E?
Title: Re: 1/4 mile time.
Post by: nick_villan on March 28, 2006, 09:50:24 AM
u can go on a big as diet and do the same shaZam! :icon_lol:
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 10:32:56 AM
Quote from: nick_villan on March 28, 2006, 09:50:24 AM
u can go on a big as diet and do the same shaZam! :icon_lol:

I can't.
Title: Re: 1/4 mile time.
Post by: NiceGuysFinishLast on March 28, 2006, 12:39:13 PM
Quote from: AlphaFire X5 on March 28, 2006, 10:32:56 AM
Quote from: nick_villan on March 28, 2006, 09:50:24 AM
u can go on a big as diet and do the same shaZam! :icon_lol:

I can't.

Alpha's a skinny beyotch... taller than me, and weighs less... or maybe I'm just a fatass...
Title: Re: 1/4 mile time.
Post by: Jake D on March 28, 2006, 01:00:16 PM
There was a guy that put No2 on his GS.  He posted here a lot.  Can't remember the screen name. . .
Title: Re: 1/4 mile time.
Post by: nick_villan on March 28, 2006, 01:10:30 PM
their is always removing parts u dont need on ur bike before u go racing, like mirors and other stuff.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 01:33:42 PM
Quote from: nick_villan on March 28, 2006, 01:10:30 PM
their is always removing parts u dont need on ur bike before u go racing, like mirors and other stuff.

I did that. It dropped it MAYBE 10lbs at the most. Plastics, tail light, head light, mirrors. Well, that's about all you can remove.
Title: Re: 1/4 mile time.
Post by: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 05:36:08 PM
Quote from: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.

What?
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 28, 2006, 08:02:42 PM
Maybe if you get drunk you can figure it out????
Title: Re: 1/4 mile time.
Post by: yamahonkawazuki on March 28, 2006, 08:08:19 PM
fut the wuck?  :icon_confused:
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 08:11:03 PM
Quote from: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.

You could rig up a remote and steering setup then that's like mine. 230, in my case. So now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.

That's what I got out of it, and it makes even LESS sense now.
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 28, 2006, 08:20:19 PM
LOL
Title: Re: 1/4 mile time.
Post by: NiceGuysFinishLast on March 28, 2006, 11:54:41 PM
Quote from: AlphaFire X5 on March 28, 2006, 08:11:03 PM
Quote from: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.

You could rig up a remote and steering setup then that's like mine. 230, in my case. So now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.

That's what I got out of it, and it makes even LESS sense now.

Close Alpha, but no cigar. What he said was:

You could rig up a remote and steering setup, then that's like minus 230 [pounds] in my case, so now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.
Title: Re: 1/4 mile time.
Post by: ajgs500 on March 28, 2006, 11:56:49 PM
Quote from: NiceGuysFinishLast on March 28, 2006, 11:54:41 PM
Quote from: AlphaFire X5 on March 28, 2006, 08:11:03 PM
Quote from: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.

You could rig up a remote and steering setup then that's like mine. 230, in my case. So now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.

That's what I got out of it, and it makes even LESS sense now.

Close Alpha, but no cigar. What he said was:

You could rig up a remote and steering setup, then that's like minus 230 [pounds] in my case, so now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.


Wow u understand drunkenese!!!!!!!!!!!!!!!!!!!! :laugh: :laugh: :laugh: :laugh: :thumb:
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 28, 2006, 11:57:55 PM
Quote from: NiceGuysFinishLast on March 28, 2006, 11:54:41 PM
Quote from: AlphaFire X5 on March 28, 2006, 08:11:03 PM
Quote from: rangerbrown on March 28, 2006, 04:53:22 PM
yo could rig p a remote and steering setup then thats like mins 230 in my case so now it sold rn the 1/4 in what 12's but thats if yo can hold it up long enough to launch.

You could rig up a remote and steering setup then that's like mine. 230, in my case. So now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.

That's what I got out of it, and it makes even LESS sense now.

Close Alpha, but no cigar. What he said was:

You could rig up a remote and steering setup, then that's like minus 230 [pounds] in my case, so now it should run the 1/4 in the 12s, but that's if you can hold it up long enough to launch.

Dude, that was amazing! How did you translate that???  :bowdown: :bowdown:
Title: Re: 1/4 mile time.
Post by: Dwn4whadever on March 29, 2006, 05:25:54 AM
That was some Da Vinci Code s*%#. :thumb:
Hello Dr. Langdon :laugh: :laugh: :laugh: :laugh:
Title: Re: 1/4 mile time.
Post by: nick_villan on March 29, 2006, 07:52:47 AM
dude u should start a  dumies for hot to speak to drunks
Title: Re: 1/4 mile time.
Post by: NiceGuysFinishLast on March 29, 2006, 06:02:39 PM
I == The Man!

And any code geeks out there will understand why I used "==" instead of "="

I offer my translation services free of charge to all the great members of gstwin!  :laugh:

No need for  :bowdown: simply  :cheers: will suffice!
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 08:32:34 PM
You could always install one of these: http://cgi.ebay.com/ebaymotors/Electric-Supercharger-TURBO-All-Makes-and-Models_W0QQcmdZViewItemQQcategoryZ33741QQitemZ8051628669QQrdZ1
LMAO!!!!! :laugh: :laugh:
Title: Re: 1/4 mile time.
Post by: nick_villan on March 30, 2006, 08:57:12 PM
aahh lets c  :cookoo: na r u evil  :icon_twisted:?
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 09:14:17 PM
Umm.....Paging NiceGuysFinishLast, there is a dialect conflict on aisle 3. I am in need of a translator. I can't understand a word you are saying.
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 30, 2006, 09:50:47 PM
Quote from: jnande4176 on March 30, 2006, 08:32:34 PM
You could always install one of these: http://cgi.ebay.com/ebaymotors/Electric-Supercharger-TURBO-All-Makes-and-Models_W0QQcmdZViewItemQQcategoryZ33741QQitemZ8051628669QQrdZ1
LMAO!!!!! :laugh: :laugh:


wo wo wo. This is awesome!!! Looket that! I think that's a cool idea. Rather than using the exhaust gas to spin the turbine, use an electric motor. I wonder if it would actually work on a bike? or at all for that mater.


Title: Re: 1/4 mile time.
Post by: Alphamazing on March 30, 2006, 10:05:13 PM
Quote from: budget speed demon on March 30, 2006, 09:50:47 PM
Quote from: jnande4176 on March 30, 2006, 08:32:34 PM
You could always install one of these: http://cgi.ebay.com/ebaymotors/Electric-Supercharger-TURBO-All-Makes-and-Models_W0QQcmdZViewItemQQcategoryZ33741QQitemZ8051628669QQrdZ1
LMAO!!!!! :laugh: :laugh:


wo wo wo. This is awesome!!! Looket that! I think that's a cool idea. Rather than using the exhaust gas to spin the turbine, use an electric motor. I wonder if it would actually work on a bike? or at all for that mater.

It won't work.
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 30, 2006, 10:07:48 PM
Quote from: AlphaFire X5 on March 30, 2006, 10:05:13 PM
Quote from: budget speed demon on March 30, 2006, 09:50:47 PM
Quote from: jnande4176 on March 30, 2006, 08:32:34 PM
You could always install one of these: http://cgi.ebay.com/ebaymotors/Electric-Supercharger-TURBO-All-Makes-and-Models_W0QQcmdZViewItemQQcategoryZ33741QQitemZ8051628669QQrdZ1
LMAO!!!!! :laugh: :laugh:


wo wo wo. This is awesome!!! Looket that! I think that's a cool idea. Rather than using the exhaust gas to spin the turbine, use an electric motor. I wonder if it would actually work on a bike? or at all for that mater.

It won't work.

why?
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 30, 2006, 10:11:42 PM
Quote from: budget speed demon on March 30, 2006, 10:07:48 PM
Quote from: AlphaFire X5 on March 30, 2006, 10:05:13 PM
Quote from: budget speed demon on March 30, 2006, 09:50:47 PM
Quote from: jnande4176 on March 30, 2006, 08:32:34 PM
You could always install one of these: http://cgi.ebay.com/ebaymotors/Electric-Supercharger-TURBO-All-Makes-and-Models_W0QQcmdZViewItemQQcategoryZ33741QQitemZ8051628669QQrdZ1
LMAO!!!!! :laugh: :laugh:


wo wo wo. This is awesome!!! Looket that! I think that's a cool idea. Rather than using the exhaust gas to spin the turbine, use an electric motor. I wonder if it would actually work on a bike? or at all for that mater.

It won't work.

why?

In order for a supercharger to work there needs to be a certain amount of flow produced. The amount of energy produced by that electric motor isn't even close to the necessary amount needed for a super/turbocharger to be effective. The turbos are run off the velocity of the exhaust gasses, which is why it takes so long for a turbo to kick in: the velocity of the gasses isn't fast enough.
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 10:18:52 PM
Yes, you are correct. The velocity of the exhaust gas is lower when at idle and below about 1500-2000 RPM. However, there is also another cause for Turbo Lag. The fact that the gasses have to get the Turbo fins moving from almost a complete stop is another major contributing factor to Turbo Lag. That is why you see all kinds of new metals being tested as Turbo fins i.e. Titanium, Titanium alloys, etc. A great way to reduce Turbo Lag but still produce large amounts of boost is to install a smaller Turbo charger in-line with a larger Turbo charger. Since the exhaust gasses get the smaller Turbo turning faster, there is much less Lag that using one large Turbo. I don't know if this would work or not. They claim 3 psi of boost. It runs off 12 volts, so it could be attached to a motorcycle, or any vehicle for that matter, so long as it has a 12 volt battery to spin the electric motor.
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 30, 2006, 10:20:38 PM

QuoteIn order for a supercharger to work there needs to be a certain amount of flow produced. The amount of energy produced by that electric motor isn't even close to the necessary amount needed for a super/turbocharger to be effective. The turbos are run off the velocity of the exhaust gasses, which is why it takes so long for a turbo to kick in: the velocity of the gasses isn't fast enough.

I don't want to be rude, but I don't think you really know what your talking about here. I've seen some pretty dam powerfull electric motors, and with some creative gearing I'm sure it could get the blades spining fast enought to shove more air into the carbs than would normally enter them. no where near as effective as a real turbo or supercharger, but I think it would have some effect.
Title: Re: 1/4 mile time.
Post by: Alphamazing on March 30, 2006, 10:27:16 PM
Quote from: budget speed demon on March 30, 2006, 10:20:38 PM

QuoteIn order for a supercharger to work there needs to be a certain amount of flow produced. The amount of energy produced by that electric motor isn't even close to the necessary amount needed for a super/turbocharger to be effective. The turbos are run off the velocity of the exhaust gasses, which is why it takes so long for a turbo to kick in: the velocity of the gasses isn't fast enough.

I don't want to be rude, but I don't think you really know what your talking about here. I've seen some pretty dam powerfull electric motors, and with some creative gearing I'm sure it could get the blades spining fast enought to shove more air into the carbs than would normally enter them. no where near as effective as a real turbo or supercharger, but I think it would have some effect.

http://gstwins.com/gsboard/index.php?topic=4018.0

According to KevinC (who I trust completely), it takes 5000W of power to make it even remotely effective.
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 10:32:06 PM
Dude, now that I have thought about it, it just might work! I think someone should try it, and fill us in on the results. If it works, that would be awesome! If not, oh well. Yeah, I have seen some pretty powerful electric motors too. It looks to have the cylindrical fin setup, which moves quite a bit of air for its size. I bet if the fins were pitched right, this thing could actually work.
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 30, 2006, 10:32:13 PM
ok, heres what we do. everyone donate to the cause and buy one. I'll put it on my bike and see if it works. if it works I'll give everyone their money back, but if it doesn;t then we;re all out alittle cash.  :laugh:
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 10:34:51 PM
The supercharger on a carbeurated engine is placed below the carb to more effectively atomize the fuel for a more consistent burn. Really important, especially when force-feeding air into your engine. If one cylinder is producing significantly more power than another, you can get all kinds of crazy vibrations and even bent valves, crankshafts, or cams, not to mention thrown pistons. Fuel injection atomizes fuel much more effectly than carbeurators because the fuel is pressurized in the fuel injection system, more so than in a carbeurator.
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 30, 2006, 10:57:48 PM
However, there are some superchargers that can sit on top of the carbeurator. With this kind of setup, you have to either purchase a "flow through" carb, or modify your existing carb because carbs were designed to work at atmospheric pressure. In order to convert your standart carb to flow through, you would need to mill the choke horn, seal the choke rod hole, and install upgraded floats in the bowls. Basically, you have to seal the entire carburator to upgrade to "flow through". However, running at 3 psi max, these upgrades are probably negligable, as is a fuel pump upgrade. 1psi added boost = 1psi additional fuel pressure required. 3 psi max is not that big a deal.
Title: Re: 1/4 mile time.
Post by: budget speed demon on March 30, 2006, 11:54:44 PM
Quote from: jnande4176 on March 30, 2006, 10:57:48 PM
However, there are some superchargers that can sit on top of the carbeurator. With this kind of setup, you have to either purchase a "flow through" carb, or modify your existing carb because carbs were designed to work at atmospheric pressure. In order to convert your standart carb to flow through, you would need to mill the choke horn, seal the choke rod hole, and install upgraded floats in the bowls. Basically, you have to seal the entire carburator to upgrade to "flow through". However, running at 3 psi max, these upgrades are probably negligable, as is a fuel pump upgrade. 1psi added boost = 1psi additional fuel pressure required. 3 psi max is not that big a deal.

sooooooooooooooooooooooooooooooo.....
will it work or not?
Title: Re: 1/4 mile time.
Post by: jnande4176 on March 31, 2006, 12:06:04 AM
Not sure. It claims 3psi max, so theorhetically it would work. You should feel some increase in power running 3psi of boost, especially on a bike.
Title: Re: 1/4 mile time.
Post by: GeeP on March 31, 2006, 12:30:22 AM
Quote from: AlphaFire X5 on March 30, 2006, 10:27:16 PM
According to KevinC (who I trust completely), it takes 5000W of power to make it even remotely effective.

Sounds about right.  Didn't want to go outside to find my books on turbine theory, so I hit the "easy" button and opened up Machinery's Handbook.  The table I have here "Horsepower required to Compress One Cubic Foot of Free Air per Minute (Isothermally and Adiabatically) from Atmospheric Pressure (14.7 PSI) to Various Gage Pressures -Single Stage Compression  (Initial air temperature 60F- Jacket cooling not considered)" shows .050 HP per CFM at 15 PSI Adiabatic.

Assuming the GS consumes about 500cc x 5,500 = 2,750,000 cubic centimeters of air per minute.  2,750,000 cubic centimeters per minute = 97.1 CFM.

.050 x 97.1 = 4.9 HP

I seem to recall that most turbos operate at about 65% efficiency.  (Combined inefficiency of the turbine and compressor.)  For an electrically driven compressor this is probably a little low, but I like worst cases. 

100 / 65 = 1.54

1.54 x 4.9 = 7.5 HP.

7.5 x 746 = 5.6 kW.

It's not a question of whether an electric motor driven centrifugal compressor is capable of the work, it's a question of whether the GS can supply the power to run it.  The answer is HELL NO!   :laugh:
Title: Re: 1/4 mile time.
Post by: nick_villan on April 02, 2006, 02:49:11 PM
so ur saying that it might work on a bigger bike?