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Superbike Unlimited suggested they got impressive gains when they went to four sensors. Each cylinder was mapped very differently.

I guess, it depends what 'impressive gains' equals though...and how much you want to spend to achieve them.
 
Steven31371 said:
I also solved a potential issue…Ohlins only makes a spring that runs up to 115n…that’s already still a bit light for me, and it’s the heaviest spring rate Ohlins offers for my rear shock.…and I’m adding a a linear shock link and the extended Pierobon swingarm, both of which require a heavier spring than you would normally use….I found some heavier springs by Ktech though, they are the same size and dimension as the Ohlins so they should work fine…I’m ordering the 120n, 130n, and 140n springs which I hope will be heavy enough….I’ll start with the 130n and move up or down from there.

Eventually, with some seat time abs some weight loss I’ll do it right and get something custom valved on a better overall setup, but for now this is a good solution.

https://store.ktechsuspension.com/shock-absorber-spring-140n-46x180-red-46-180-140.html
Click to expand...

Steve, 130 is a very HEAVY spring. Sounds extreme to me to go up 6 weight levels, even if you are big/heavy and the link/swingarm, when the bike comes with a 90 from factory. Talk to your suspension guy, and talk to a second guy to get a second opinion.
 
TomFoolery said:
Steve, 130 is a very HEAVY spring. Sounds extreme to me to go up 6 weight levels, even if you are big/heavy and the link/swingarm, when the bike comes with a 90 from factory. Talk to your suspension guy, and talk to a second guy to get a second opinion.
Click to expand...


I talked to an Ohlins tech at length about the right spring weight before installing the swingarm and linear link to get the right spring for the stock rear end….he said 115 is probably a bit too light and a 120n would be better but they don’t make it…so a 130n is not a huge jump from the 115n I have now or the 120n I really need.

Might even have to go to the 140n depending on how much the linear link and extended swingarm combine together to create more leverage
 
Still out of town but I did get a bit of info from Woolich.

The Spark SBK exhaust appears to have 4 wideband O2 bungs in the diagram.

So I asked if Woolich had an iteration of the V4 kits that allowed mapping and tuning of all four cylinders using 4 O2 sensors, they are working on it but will be a good wait for it.

In the mean time, there is a provision in the software where you can move the single O2 sensor to each of the 4 cylinder’s O2 bung and then select an option to map and and tune one cylinder at a time….so you CAN tune each cylinder individually with the Woolich, it’s just a bit of extra wrenching and bench time as you have to log then tune each cylinder one at a time.

I have to say, the support you get, even when you’re asking some noob questions is excellent with these guys.
 
Steven31371 said:
Still out of town but I did get a bit of info from Woolich.

The Spark SBK exhaust appears to have 4 wideband O2 bungs in the diagram.

So I asked if Woolich had an iteration of the V4 kits that allowed mapping of all four cylinders, they are working on it but will be a good wait for it.

In the mean time, there is a provision in the software where you can move the single O2 sensor to each of the 4 cylinder’s O2 bung and then select an option to map and and tune one cylinder at a time….so you CAN tune each cylinder individually with the Woolich, it’s just a bit of extra wrenching and bench time as you have to log then tune each cylinder one at a time.

I have to say, the support you get, even when you’re asking some noob questions is excellent with these guys.
Click to expand...

That’s good info! [emoji106]


Sent from my iPhone using Tapatalk
 
It looks like you swapped out the Akra exhaust with another Akra exhaust and now you're switching to a Zard? Why? Do you not like the Akra? I assume (based on your proclivity for lightness) it's a full Ti exhaust on the bike now?

Also, eagerly awaiting your H2O radiator install as it gets HAF in Florida so I'm keen on that. Keep posting pictures! Thanks!
 
southeastduc said:
It looks like you swapped out the Akra exhaust with another Akra exhaust and now you're switching to a Zard? Why? Do you not like the Akra? I assume (based on your proclivity for lightness) it's a full Ti exhaust on the bike now?

Also, eagerly awaiting your H2O radiator install as it gets HAF in Florida so I'm keen on that. Keep posting pictures! Thanks!
Click to expand...


No, this bike had the full Akra on it already when I bought it….it’s a really good exhaust, but I think with good tuning we can get a bit more out of the Sparks SBK and it’s lighter.

We are getting close to another big round of installs.

I’m waiting to get all the stuff in that requires a tear down of the bike so that I only have to do that once…I have the H20, waiting for the Pierobon Swingarm that’s supposed to be here at the end of the month, abs the Spark SBK Exhaust that should be here from Italy soon. All the motoCorse stuff is in, as are all the brake upgrade stuff and a bunch of other odds and ends….barring any major shipping delays we should have everything on and posted by mid February

The current Akra exhaust is full Ti, the Spark is Ti, with a Inconel headers. Inconel is just as light or lighter than Ti, and it’s stronger and is better at standing up to heat, same stuff they used on my Porsche build and on F1 exhuast.
 
You may want to double check that….

The density of inconel is about the same / slightly higher than steel.

About twice as dense as titanium, so unless the wall thickness is reduced by a significant margin it’s going to be heavier.

Inconel is a great material, but lightness isn’t one of its selling points.
 
burton said:
You may want to double check that….

The density of inconel is about the same / slightly higher than steel.

About twice as dense as titanium, so unless the wall thickness is reduced by a significant margin it’s going to be heavier.

Inconel is a great material, but lightness isn’t one of its selling points.
Click to expand...

Yes, to clarify, in actual use because of it’s heat resistant and strength properties it’s as light or near enough as matters to Ti precisely because you make the wall thickness thinner….in most instances, in exhaust header applications they 3D print the Inconel….to get the exact shape desired and maintain the thinness of the material.

When we did my Porsche headers I got to go to the place that printed them and watch for a bit as my set was printed, cool process where they weld each bead into place with lasers
 
Storm offers Ti or Inconel on their Header pipes (short pipe section to the head). Here is a Ti header (V cylinder) that didn't fair so well. I suspect this fatigue was due to this particular section of pipe being wrapped with heat shield (WSBK) pipe. Not pretty. Storm sent me a new one no questions.
IMG_1757.jpg
 
The spark header flanges are inconel, as are the 2 inches of pipe immediately after the flange. They definitely look 3D printed as can be seen here, probably polished from the inside.
a24ae420b2d09c8dc7f4fc5352ab849f.jpg

Looks to be as thin or thinner walled than the ti pipe following it. Nice design as that’s one of the hottest and most stressed areas of the exhaust.


Sent from my iPhone using Tapatalk
 
Alkhater said:
The spark header flanges are inconel, as are the 2 inches of pipe immediately after the flange. They definitely look 3D printed as can be seen here, probably polished from the inside.
a24ae420b2d09c8dc7f4fc5352ab849f.jpg

Looks to be as thin or thinner walled than the ti pipe following it. Nice design as that’s one of the hottest and most stressed areas of the exhaust.


Sent from my iPhone using Tapatalk
Click to expand...


Would be better if they printed the first 8 inches or so, but then it would be an $8500 exhaust not a $6500 exhaust. The Inconel is expensive but the time in the printing machine is way more expensive.
 
9E59B912-FCC3-45C9-8575-C07D032810AC.jpg


Ordered the Woodcraft clip ons to replace my IMA adjustable clipons…ordered two sets with extra handlebars

I love the IMA triple clamp, and their clipons are made very well with lots of adjustment range….but I keep continuously adjusting them and they never feel as good as the Woodcraft on my Gixxer race bike.

I also ordered the TTX GP rear shock and am getting it custom spec’d for my weight and mods.

For the front forks I’m just doing a cartridge upgrade for now to the FKR 108’s and will use the BSD E suspension modules to block error codes.

Easiest and best upgrade to the front end for now so my 100 mm Brembro GP4-Ms calipers and the IMA adjustable triples still work with the front end.
 

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