SV650 basic specs for a newbee

I need to ask some questions the local bike shops are unable or unwilling to answer.
Just to fill you in this is for racing purposes.
1) Is there a raw Horsepower difference between the fuel injected and non fuel injected SV?
2) Other than cosmetic does the 03/04 frame have any advantage over the older frame?
3)what are the Horsepower figures for these bikes?
4) I understand fitting a freeer breathing muffler and a more poen airbox frees up an extra 10hp
Any other advise would be apreciated.

[BillyC]

Hi Frosty...

Here's my view for answers to your questions:

1) I think in terms of peak performance between the 1999-2002, and 2003 onwards models, there is little difference. However, I understand that the power band is larger on the injected engine in the top end - 6000 rpm and above. I would guess that the earlier model has a bit more grunt in the lower end, due to the carbs though. At the end of the day - it's all about tuning.

2) The 03/04/05 frame is a bit lighter than the tubular frame of the earlier model. It think it's slightly stiffer due to it's construction, but it's not as strong - being box section, and not tubular. I think the swingarm seems a bit more delicate on the later model too, but that's only from what I've seen, in particular the rear axle slider.

3) I believe that the average is about 67bhp for both the carb'd and injected models.

4) Fitting a filter and a Can certainly does improve the responsiveness and power of the engine, but I'd be surprised if it gave as much as 10bhp alone! It certainly sounds a lot nicer! Tuning the different engines requires different methods... but generally speaking that once you've done these two things, you need to retune the fuel delivery, either by new jets or remaping the injection. Then there are ignition retard eliminators, which take different forms depending on whether it's carb'd or injected.

We've seen the K3/4 model make around 83bhp with all this done, which is a fair jump! Of course then you can go to full exhaust systems, big bore kits etc etc... Probably not too difficult to get even more, but you might have to have a new engine every 5000 miles

Hope this helps, no doubt, others will have more to add!

Ill try and help

1) Is there a raw Horsepower difference between the fuel injected and non fuel injected SV?
No not really, it in the way its delivered both bout 70bhp
2) Other than cosmetic does the 03/04 frame have any advantage over the older frame?
I believs is supposed to be stiffer and lighter think thats it, its uglier though
3)what are the Horsepower figures for these bikes?
specs say about 70bhp, real world bout 66- 71 i believe
4) I understand fitting a freeer breathing muffler and a more poen airbox frees up an extra 10hp
Possibly that much with a re jet / power comander, new air filter and race can, extra power is easlil achievable aswell through other methods,

Any other advise would be apreciated.

Hope this helps,
Alex

agree with the above

Thanks a million guys.
It just shows My ZXR400 just got dynoed at 69HP. Sheesh looks like I could get 75-85 Hp anwith basicly a bog stock SV
Im told that itll cost me around 500 quid to sort out the front end for race use and about 400 quid for pipe and jetting.
Makes for darn cheap racing

[northwind]

Nah, you'll not get 75bhp without some significant mods, unless you're talking crank bhp... (Like Billy was) Full system, pc/rejet, and filter might get you there but it'll cost you towards a grand to do it that way. The carbed model has more cheap returns- cams, rejetting instead of a PC, etc.

85bhp's held as the limit for a reliable SV engine... To get that, you'll need to do some work. I don't know what mine's making to be honest, but I'd be surprised if it's that high- that's with a full system, filter, DJ kit, ignition advance and stage 2 cams. That was all done as cheaply as it could possibly be, and set me back just shy of £500, but that was doing my won work and getting some ridiculous bargains- full titanium system for £250...

You can go higher, if you're willing to either spend a fortune on rebuilding hte crank etc, or willing to take big failure risks.

£400'd get you a good slipon and a DJ kit, for a couple of horsepower but better curve and response. You're looking at a carbed model? £400 buys you stage 2 cams, jet kit, race filter, and £100 left for a cheap slip-on, but slipon on stock headers won't make you a lot of power- just means that your exhaust won't handicap your other efforts.

£500'll give you a damn good front end though, that's true enough- there's a current thread with prices from one of the suspension companies for cartridge internals with adjustable damping, or Racetech/Traxxion emulators are a great "budget" option from what i've read.

have a look at JHS SRacing's website, lots of prices and dyno charts on there.

Sheesh am I getting an education. But then Thats what I need to make an informed decision.
Im hovering on the fence as its mid/end season here -sell zxr4oo and get into a SV or stick with what Ive got.
Ohh --over here The sv is in the same class as a 400 4 except Im allowed to bore the 400 out to 450cc
It just shows how info gets stuffed up
The NZ F3 winner this year is on a 04 SV with a GSXR1000 front end in it
The scuttlebug in the pits was it was putting out 100 is hp --and by the way it was going its hard not to believe.
Keep in mind though he has full dealer and suzuki NZ support.

[northwind]

It's just about possible, but not without basically rebuilding the engine from scratch... Check out the Stage 3 engine in JHS's for sale section. That's 90bhp. But cost as much as my entire bike did, even without the other mods that'd be needed to make it worth doing...

I'm no engine builder, so tdon't take what i say as gospel- all I do is soak up every bit of info I can get on the SV But the highest dynoed figure I've ever seen for the SV was 96 and that was basically a suicide engine- designed not to last long and with incredibly high upkeep. Stock cranks and rods, and big end bearings, start breaking at around 90, it seems, depending on how you get there.

Thanks guys decision has been made for me for the moment.Im going to wait til end of season /mid winter to see if i can pick up a bargain bike.
Meanwhile the bank account is gonna look a heap healthier if i percevere till seasons end with my current kit.
Im still wanting to glean every bit of info I can about the SV

Originally Posted by xj/frosty

Im still wanting to glean every bit of info I can about the SV

Plenty of it on here