4 degree ignition advance does it work on a K6?

Evening ladies and gents.

I was looking through JHS archive website and I noticed I can advance my ignition by 4 degrees (possibly) will it do much or is it only for carbed bikes?

Also out of interest. How much would it cost to build up a fire breathing road motor big bore, cams, etc. I just had a crazy idea of throwing silly money at my cheap bike. Obviously I know everyone is going to say buy a faster bike but thats not the point. In my head its a Ducati 848 beater (that obviously costs probably more).

I Also saw some carbon fibre wheels in fast bikes has anyone ever had any and do they make a difference because they look awesome?

Thanks in advance

[the_lone_wolf]

Originally Posted by Jackie_Black

In my head its a Ducati 848 beater (that obviously costs probably more).

sorry to burst your bubble but it'll never happen, not for vaguely realistic money anyway

Of course it'll never happen. But as long as there is a chance I could chase silly horsepower from the little twin it could be a laugh. My logic behind it is as the bike was so cheap it's just worth keeping indefinitely and playing with as a hobby.

Has anyone acquired silly grunt from a road going SV? and how much did it cost?

oh and does the advance thing do anything to the K6?

if you're looking at doing that i'd dump the stock ecu and upgrade to something like a megasquirt or microsquirt.. allows you to tune your fuel and ignition curves very easily.. i think the new power comander type jobbies do a similar thing but arent as adjustable and DIYable.
getting that amount out of the engine you'll need to really go talking to JHS and dangerous dave off of this site. he has a rediculous bottom end on his sv which is the main weakness with the sv's engine.
obviously before you go doing things like this you really should be looking at upgrading the front end, the rear shock and the brakes. i've got a k2 gsxr750 front end on it's way which is easily good enough for the road.. rear shock wise people like ohlins, penske, techno-flex etc. brakes wise obviously the front end will come with new brakes most of which will serve VERY well on a road bike. then you'd be looking at getting an upgraded swinger due to the flex in the standard one... just upgrading the engine to stupid specs would not be worth while without upgrading the rest.
cheers
dan

[Red Herring]

The advance bit you're read about works by offsetting the flywheel on a curvy, which runs carbs. No use on a pointy which has fuel injection and therefore uses crank sensors instead. On a pointy all you need to do is get the ECU re-programmed, or put in something like a Power Commander which alters the message from the sensors to the ECU.
The only way you are going to get "silly" power increases from the SV engine is to go with a supercharger or turbo, but then you are building a time bomb. But at least that should help absorb some of that cash you are looking to burn. There was a thread on here some time ago from a chap at university doing it as a project, do a search or someone might be able to provide a link.

You can get another 10 bhp from an SV without going for major engine mods I think. If you want to turn your SV into a big-bike challenger, then its best to takle the easier-solved problems - suspension and brakes. Make your bike handle well, and along many tight and twisty roads you'll be in with a shot at showing up the bigger capacity bikes (providing your riding is up to it too!) - power on the twisties has to be usable; sure, Mr GSXR1000 has 160 bhp....but he wont be using it all you can make better use of your engine....and the engine braking

Other engine mods include big-bore converstions (700 cc, 750 cc) and swapping cam's etc.

A superchargd SV is a bold idea....but that would be awesome

Oh, RE: light wheels. Yes, this will affect the handling; by recuding the unsprung weight, and also by reducing the gyroscopic force of a rotating wheel (by having a lighter wheel), your suspension will work better, and your bike will be much easier to turn; maye also have an effect on acceleration (less force required to turn a lighter wheel) Can make things a bit "flighty" though...

Originally Posted by Red Herring

The advance bit you're read about works by offsetting the flywheel on a curvy, which runs carbs. No use on a pointy which has fuel injection and therefore uses crank sensors instead.

it actually does same thing on both bikes.advance or retard timing.

[northwind]

Originally Posted by Jackie_Black

I Also saw some carbon fibre wheels in fast bikes has anyone ever had any and do they make a difference because they look awesome?

I stuck a cheap Dymag magnesium wheel on the front of mine... The rear still isn't fitted but it will be some time. It makes a real difference- I'll be honest and say I can't use half of my bike's turning potential so I'm wasting some of the benefit, but it also makes it easier to turn the bike, easier to make corrections etc- so for one, riding fast over distance is far less tiring, and for another thing it serves as a nice safety net when I screw up

But you realise this is all proper madness, right? Seriously tuning an SV engine is a money sink, and it still won't be as potent as an 848 or an SV thou. 748 is doable I think, for probably round about twice the cost of a 748 Mainly because the 748 is heavy, for what it is.

You can make an SV into a better SV but that's really it- mine is a nice package I think, 80 rwbhp on a dynojet, very nice power delivery, 171 kilos (with all the fluids, none of your dry weight lies) when it's unfaired or about 175 when it's faired up... And pretty decent suspension to match. It works well, flatters my limited ability, and it's fun to ride and versatile, and was fun to build. But to push much past that you need to be either brave with the tuning or have very deep pockets, or a big stroke of luck.

From what I've read (from the svrider forum I think), the engine can cope with being boosted to about 90hp safely with big-bores, cams etc, but much above that and the crank is in danger of snapping

I see, just goes to show how amazing a resource the org actually is with all these answers. Perhaps a semi money pit option will be best then. Aim for about 90 Bhp with some trick bouncy bits and perhaps some posh wheels. Is it worth persevering with the stock front end or do I really just need to throw it away (on ebay) and install GSXR goodies?

And have we decided if the 4 degrees of advance will make any difference or not as I got conflicting answers..