Engine mods, need advice

hi,

actually it's 4k$ canadian

and the frame is not black I powder Coat it Antracit and it cost me 800$

yes it's the lower fairing from poly26 Cost me arround 500$ canadian to have it
and another 800$ to paint it

power commander = 300$
tunning from a certified dyno jet shop = 300$
undertail = 200$
full hindle exhaust and pipe = near 1k$
and few other things like solo seat, grips, peg, better tire,

for sure I'll change my suspension before touching the engine, but for that I already know what I'll do.. or I think.. :P I'll just change the spring and add the valve in the shock, it supose to cost me around 250$ for the parts

I'll change the brake line for a stainless steel brake line and the chain and sprocket for a 520 kit

but for now before starting everything I'm stuck with the engine mods

northwind
...If you put a stock SV engine into a 675 chassis (using a magic wand, since it wouldn't fit, but bear with me...) I bet you a pound it'd be faster than a 675 engine in a stock SV chassis around the racetrack of your choice. ...
...
Just remember, no matter what you do it'll never be a Daytona.

Yeah I know I don't want to install any part from or to a daytona I just say that for a moment I would have a daytona 675 but I'll keep my SV and I just want to mod what I got

I check http://www.twinworksfactory.com/ and they have a lot of stuff probably I'll find what I need there. thanks a lot..

if anyone got other advice or new idea I'll apreciate it

[northwind]

Ah, $4000 CAD makes a lot more sense Zoran at Twin Works is pretty much The SV Man. You might find it worth your time to join SV Rider, it's a US-centric site but that's closer

Hmm. The shock work you describe sounds just a little like an SV Race Shop job? If it is, avoid, they're either criminal or incompetent but I tend towards incompetent criminals. Work not done, work done wrong, rebuilt shocks that are unsafe to ride on, forks with a worse valving job than I'd do myself, parts charged for but not fitted, the list goes on They got well and truly Found Out, to the extent that they went and found a whole new bike to **** up, since they lost so much SV business.

[Stu]

Originally Posted by sideshow46

yeah, also anybody noticed how it appears to be a black frame and its a K3?

But it has the K3 "Suzuki" on the tank, K3 colour etc.

got an anwser from Zoran from Twin Works Factory

what I say:

Hi,
I would like to know what can I do to increase the power of my SV650s 2003
I already have full exhaust systeme, Power commander III, K&N air filter, -1 teeth front sprocket, +3 tooth rear sprocket.
now I want to mod my engine... I would like to have:
754cc.
maximum of stable HP.
what exacly you have in your "70-100+ Horsepower Packages"
and at which cost?
Thanks for all your time

What he say:

anything over 2mm overbore is risk and not reliable.with 2mm over you can get 85-90 hp.
cost is around $4k(parts and labor).
--
Zoran Vujasinovic
Twin Works Factory

northwind: it's better for my suspension to get a gixxer fork and fit it on my sv?

[northwind]

Front end? Depends. You can fire in a Traxxion AK-20 kit, which by all accounts makes your stock front end better than the front end swap. But it costs a hell of a lot, whereas my GSXR front end swap actually paid for itself when I sold the stock parts, and also gave braking improvements. And cosmetics, of course The K6 GSXR front end is really quite superb, IMO, though anything can be improved on. Mine is a K2 front end, more or less, and it's absolutely night and day compared to stock. I've got completely standard internals for now, but that'll change next year.

Cartridge emulators are very good, but personally I don't rate them on economic grounds- they're less good than a GSXR front end valved to suit you, and can cost more. Insurance can be an issue though, with whole swaps.

There's a lot of differing opinions on this, but I'm thoroughly in the GSXR front end camp. It's economically sensible, it's extremely effective, it's DIYable and it looks the dogs. If you weigh more than maybe 12 stone, it's really a good idea to start to look at respringing and revalving a GSXR front, which does add expense, but then the same's true of stock parts.

I did the spring and oil swap before, which is a brilliant, simple mod that personally i think just about every SV owner should consider, apart from the freakishly skinny ones... But it just does not compare in any way to the higher quality upgrades. And from the sort of budget you're discussing I'd call it a false economy.

[northwind]

Oh aye, you'll hear differing opinions on the safety of big bores. What's important is your definition of acceptable risk, there. You can stick a 700cc kit onto a stock bottom end and deck the heads, and chances are it'll be fine. But there's always, always an increased risk when you start to cut into the manufacturer's safety margins. With something like hot exhaust cams, it's fairly trivial- you put overlal more stress on the bottom end due to the bigger bang, but that's all. With big bores, you add moving mass, you add power stress, and you remove safety margins from the bore thicknesses. How big a risk? It's really hard to say.

So, personally, I choose not to overbore. I might fit Busa pistons next year which, with decked heads, should take me up close to 85bhp, and the decreased moving mass should make that a fairly risk-neutral proposition. But I'm convinced... Lets say I'm convinced that there's a risk that there's a risk of catastrophic failure I don't know how big, but I love my bike and I don't want the engine to break in half. The sheer inconvenience of it alone is enough to put me off, replacing an engine's easy enough but I'd be on the buses for weeks and it'd drive me nuts. Engine swaps kill bike values too.

But, this is not a right or wrong thing. Since there's just plain not enough data out there to know for sure what's safe and what's not, you have to listen to people like Zoran, who's worked on hundreds of SVs, but also listen to those who disagree, like Steve Jordan for instance, then make your own decision.

thanks for the advice I really appreciate it.

I'll think about everything before making any choice for the engine and let you know for sure...


I think anyway before doing anything I need to upgrade my suspension...
as I understand from one of your earlier post you suggest to change both suspension? front and rear?

just to confirm.... from the worst to the best is it:

front suspension:
- SV stock
- SV with new Spring and valve
- Gixxer stock
- Gixxer with new spring

right?

if I change my front suspension for a gixxer one is there any year I need to stay with or any year will fit?

Do I need to change my triple clam too?

Thanks again for all the time you past to answer me :P

Originally Posted by fizzwheel

Northy I think that might 4K US Dollars. Look at the reflector on the front forks I don't think thats a UK bike...

I guessed that its US since it's not raining in the photograph!

[northwind]

Originally Posted by mrwolf

front suspension:
- SV stock
- SV with new Spring and valve
- Gixxer stock
- Gixxer with new spring

Something very like that, yes. Hang on... Oh yes, disclaimer! I am not a pro , or SV rebuilding master, I'm just pretty good at SVs- so I'd take that into account too People like Zoran, or Max at Traxxion, forgot more last time they got drunk than I've ever known... But, as DIY rebuilders/skilled amateurs go, I've got some game. Consider me a human FAQ...

Anyway, I'd call it:

SV Stock
SV resprung and oiled
SV resprung with cartridge emulators
GSXR stock (assuming you're within the right working weight range)
GSXR resprung and revalved
SV with Traxxion AK-20
GSXR with Traxxion AK-20

In terms of pure quality, at least. When you take value for money into it, it's a lot more complicated, that's why I end up thinking the GSXR front is one of the best options. It's not difficult to do, if you know how to do it... If you can work a spanner you can do it, pretty much. And it does give very good results. But the real killer edge is just price, since SV front end parts are worth a fair bit- if you can do the work yourself and you buy and sell carefully it can work out free.

thanks, I think I'll go for the SV with Traxxion AK-20