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-   -   Let it Breath, More Horse POWER (http://forums.sv650.org/showthread.php?t=93577)

toonyank 18-07-07 10:14 PM

Re: Let it Breath, More Horse POWER
 
Quote:

Originally Posted by injury_ian (Post 1240836)
:roll: so by letting warm air into your engine changes the gear ratios in the gearbox? YEAH AND FINAL DRIVE

Exactly, what a load of bo**ocks! Maybe a good enough idea for breathing sake but I think Paulsv650s needs to think this one through. It would be a miracle if it were true:rolleyes:

ClemsonSV 18-07-07 11:32 PM

Re: Let it Breath, More Horse POWER
 
Quote:

Originally Posted by PaulSV650S (Post 1241336)
Try it then comment this is a challenge what can it hurt for you guys to try but take notes before and after the change.......the RPMS GEAR and SPEED,,,,,whats a few mins to try it out instead of watching Benny Hill give it a shot.

As a fellow American...I'm going to have to agree with the nice "Brits" as you call them. No matter what you do, you will not change how fast you are going in "said gear" or what rpm that said gear is turning. I do, however, understand what you are saying by more power at a said RPM...that does make sense. Everything else is a headache.

edit: Did you fail phsyics? I hope you are not an Engineer.

BigBaddad 19-07-07 05:58 AM

Re: Let it Breath, More Horse POWER
 
You should try doing this, and I promise you you can go faster at lower engine speeds with no mods at all...and saves a whole lot of fuel.:rolleyes:

Ride to the top of a big hill, then ride down again when you hit 70mph in top gear, pull that lever on the left all the way in. Your speed will increase and engine rev's will drop to below 1000rpm:smt119

2mths 19-07-07 06:47 AM

Re: Let it Breath, More Horse POWER
 
I think problem is that he's talking in American whereas we of course all read it as if it were English.

I think most people have given him an unnecessarily hard time on this. The way I'm choosing to interpret what is said is that due to the mod the engine is producing that 1bhp more. We all know that Power = Torque x RPM so it follows that if power is up then Torque must have been increased. So this could give rise to a situation whereby you could pull a given speed in a higher gear than before without the bike complaining or bogging down.

I hope I've spoken in English and not BS above. If I've got anything wrong I expect to get a very hard time from you all.

mattSV 19-07-07 07:04 AM

Re: Let it Breath, More Horse POWER
 
Quote:

Originally Posted by BigBaddad (Post 1241632)
You should try doing this, and I promise you you can go faster at lower engine speeds with no mods at all...and saves a whole lot of fuel.:rolleyes:

Ride to the top of a big hill, then ride down again when you hit 70mph in top gear, pull that lever on the right all the way in. Your speed will increase and engine rev's will drop to below 1000rpm:smt119

Funny that - when I pull in the lever on the right all the way in, my speed DECREASES - significantly!

Sid Squid 19-07-07 07:11 AM

Re: Let it Breath, More Horse POWER
 
Ease up boys and girls! Apart from a slight misunderstanding, (it must be said I don't think PaulSV650S expressed himself well first time out, but he hasn't said anything wrong). Take your time reading the first post, he does appear to say that changing the intake baffling changed gearing, but has since clarified that isn't what he intended to mean, simply that a given situation that required a given gear can now be achieved in another with the consequent difference in revs.

Quote:

Originally Posted by Baph (Post 1241240)
Another thing to consider, is water. More air, more water. Do you want water seeping through the air filter & getting mixed with fuel in the cylinders? I certainly don't. In your situation, only the gas tank will really stop water getting to the air filter. I also have the airbox top to help this..

This has come up a number of times before, (may have been the 1000 site - don't remember exactly), the dirt and water issue hasn't proven to be a problem, there are a couple of bits available, such as the JHS part that resembles the base of the airbox lid, that hold the filter in so it will seal, it may distort if you just use washers. There would have to be a sincere flood before there were enough water to cause a problem.

Quote:

Originally Posted by Baph (Post 1241240)
Note though, as I said, if the fuel mix is too lean, the bike will still run OK, but you'll be doing damage to the valves/shims by riding it in that state. That can get real expensive real quick.

Ummm... How? Running lean may raise the engine temperature overall, (I can explain why if needed), but won't specifically effect upon the valves, lack of clearance can affect valves, particularly the exhaust - I've never seen a burnt inlet. Lean running will affect cylinder/piston sooner than valves.

Quote:

Originally Posted by BigBaddad (Post 1241632)
You should try doing this, and I promise you you can go faster at lower engine speeds with no mods at all...and saves a whole lot of fuel.:rolleyes:

Ride to the top of a big hill, then ride down again when you hit 70mph in top gear, pull that lever on the right all the way in. Your speed will increase and engine rev's will drop to below 1000rpm:smt119

Errr... Left? Pulling the lever on the right will arrest your progress completely I would have thought. :D

Quote:

Originally Posted by 2mths (Post 1241639)
Sensible stuff.

Agreed.

BigBaddad 19-07-07 07:45 AM

Re: Let it Breath, More Horse POWER
 
I hope you don't notice the edit :rolleyes: ......eer mmmm I though that US models where left hand drive:stupid:

Smudge 19-07-07 08:43 AM

Re: Let it Breath, More Horse POWER
 
what a wined up, great bit of entertainment this thred was, so did we end up potato or potarto, but you do really get more revs it goes right into the red :shaking:

petevtwin650 19-07-07 02:07 PM

Re: Let it Breath, More Horse POWER
 
Quote:

Originally Posted by PaulSV650S (Post 1240835)
example 55mph before was 5th gear at 5,500 rpms now it is 4th gear at the same rpms. ....let thoses horses free....:smt077 and go kick some butt.......................

So this statement he has since retracted?

And BigBaddad is your tickover lower than 1000 revs then? Good comeback though on the wrong lever.:p

northwind 19-07-07 03:29 PM

Re: Let it Breath, More Horse POWER
 
Quote:

Originally Posted by Sid Squid (Post 1241645)
Ease up boys and girls! Apart from a slight misunderstanding, (it must be said I don't think PaulSV650S expressed himself well first time out, but he hasn't said anything wrong

Well... Actually, nearly true, the first post was right, it's only once he started trying to defend himself he got it wrong, which is odd :)

Quote:

Originally Posted by PaulSV650S (Post 1241283)
you can get more air just like above by removing the air box lid thus decreasing the rpms for a given speed in a said gear



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