Thanks Rook!
How does the smoothness compare to the original magic carpet ride before you started tinkering with things. Is is just as smooth? When mine was new, I could barely feel the engine, other than stretched arms :) Now it is a 'coarse'. It doesn't miss a beat but is not as smooth like it used to be. I'm thinking it is still quite lean and the coarseness is because most of the energy is going into compressing the extra belly load of air when I twist the throttle to get enough fuel inside.
(Did that even make sense?)
before asking, I have PC3, ignition advancer, no flies, stock exhaust and filter and it was dynoed by dynojet qualified people on dynojet gear. But what I can see of dynos, they focus on max hp from max revs and max throttle.
On this little puppy, I spend 99% riding on min throttle, min revs (and I still feel like I've got a rocket up my butt!)
:)
Russty

---

On this little puppy, I spend 99% riding on min throttle, min revs (and I still feel like I've got a rocket up my butt!)

LOL- yeah, I know, there isn't much need to wring on the 14 for everyday riding. It has been a year since my 14 was modded but I remember the feel of the stock setup (+ I ride a stock G2 busa as well and that keeps me aware of how the 14 felt when stock). It was very smooth except for that little annoying lag from take off to 3500 rpm. It seemed a good bet that that was the flies since everyone knows they open at 3500.

1. I pulled the flies but the lag was still there. Figured the flies were only half of the problem. The stock mapping needed to be adjusted to match the increased flow of flies out.
2. Put the PCV on with map from Fuel Moto USA and that improved the lag slightly...maybe?? I bet the map they gave me was for flies in. It was labeled "08 ZX-14 Stock" map.
3. Installed full system exhaust and map from a tune of a ZX-14, flies in with same exhaust and BMC Race air filter. That map was a definite improvement but when I was on the throttle hard from a takeoff, I could still feel the leap in power at 3500.
4. Blocked PAIR which seems to have had no effect on AF that I can tell from performance. It just reduces decel popping which is what it is supposed to do.
5. Installed the Autotune at the end of last season. The lag was not a big problem since it only seemed to be noticeable in 1st gear on a hard takeoff and not of much consiquence,even then. I got around to figuring out the Dynojet software with a DJ tech on the phone recently. He showed me how to retrieve the fuel trims suggested by Autotune. The lag was gone after accepting the first fuel trim adjustment. The powerband feels very linear with added power from the bottom up. There were a couple tiny spikes i could feel at high rpm---I don't know if those were eliminated as well but that doesn't matter much to me. The bottom end softness was something that I felt all the time so it is nice to have that taken care of and also to have the full benefit of the flies out mod.

So, Rusty, I would say the powerband has improved in smoothness (or linearity) from how it felt stock. I don't think you're going to get the gentle pur of the stock pipes with any aftermarket system. Mine is called a race system and I consider that to be much more to my liking. It is very loud but I can't feel any more vibration at any particular engine speed than i did with the stockers. The aftermarket system has a sort of rawness about it but it feels much more smooth at high rpm than stock. The motor spins freely with the Cannon on there and i feel a lot more confident at high rpm. The stocks were a little scary in that regard.

I'm thinking it is still quite lean and the coarseness is because most of the energy is going into compressing the extra belly load of air when I twist the throttle to get enough fuel inside.

IMHO, Rus, any sizeable change from stock would be from the tune you are running and the ignition advance. I would try some maps from DJ to start. They should have a stock map for the G2 14. I would think that would work best since you are running stock pipes and the exhaust has the biggest impact on performance of all basic mods. As far as rich goes...I doubt you will find a map richer than OEM mapping. I always heard that was verry rich at all rpm on the G2. That is the reason I was confident to run mine for a while with flies out and no PC.

Sorry for jacking your thread, Kruz.

* Last updated by: Rook on 8/29/2010 @ 12:14 AM *

---

Just sumtin I was a thunkin bout fo a spell I reckon

For those of you who swear by a 190/55 on a bike that was setup and built around the use of a 190/50. What are you guys doing with the front end to compensate increased height of the rear? I understand the 190/55 will offer slightly more contact patch when the bike is leaned way over but if the bike has not been setup for a 190/55 I'm not convinced a 190/55 would necessarily mean more total performance as some of you stated. IMOP if you plan on street ridding on stock suspension and don't plan on screwing with the front end I wouldn't change from the stock tire profile. My 08 CBR1K came with a 190/50 and so do many other really good handling production bikes so I'm not so sure about the profile being old tech. Those PhD holding, bike building engineers at Honda that designed the bike might have a better idea on what tire to use with a stock bike then I would right? Also wouldn't a 190/55 offer less contact patch when the bike is straight up and down (let’s be honest that’s were most street bikes stay 90% of the time) so that would mean you have less tire to wear in the center overall on 190/55 right?. I really think there is a reason KHI used a 190/50 on a zx14 and a 190/55 on the new zx10. The 190/50 vs. 190/55 thing would effect a gixxer 750 differently than it would a zx14 or CBR1k so to simply make a blanket statement that a 190/55 is a better tire for any stock sport bike might not be right. Anyone want to admit to not having a basic suspension setup but yet you are concerned with the benefits that a 190/55 might or might not give you over a 190/50.

* Last updated by: willidx4 on 8/31/2010 @ 5:20 PM *

Rook wrote:

it will stay looking pretty round until it's worn out on the center.

Rook, that is possibly the most profound statement I have ever heard!

---

^^The 190/55 is more eliptical across the tread. As long as you do some leaning, it gravitates to more of a circle shape as it wears. Mine is just about to the wear bars on the center now. Sides haven't got near as much wear. Tire still looks not too shabby. The stock190/50 started looking horible square when the center got worn down...course the sides of the stocker got no ware at all.

90/55 thing would effect a gixxer 750 differently than it would a zx14 or CBR1k so to simply make a blanket statement that a 190/55 is a better tire for any stock sport bike might not be right. Anyone want to admit to not having a basic suspension setup but

Don't know about other bikes but it sure feels good on the 14. I have tightened up my front suspension but it needed that even with the stock height tire. I don't feel the extra 11 mm makes a huge dif on the suspension. I'm sure sitting balls to tank or butt to seat cowl has some effect on the suspension but we all slide around on the seat and the bike rides good. The extra height in back might not help other bikes but I'm Masszx14 would know. He's the one I remeber talking up the 55 for the 14 and IMO, he was right on there.
Mass wrote:

I would go only 190/55 on a 6" wheel and it would be arbitrary b/n 180/55 and 190/55 on a 5.5" wheel IMHO.

<<There's part of the answer.

* Last updated by: Rook on 9/1/2010 @ 11:02 AM *

---

Just an FYI. In Road Racing Worlds literbike comparos, they put all the bikes on 190/55ZR17 control rubber so they're all on an equal footing. They avoid making any compensations to restore original geometry and their testers who I have a lot of respect for(all AMA pros) have commented favorably on the way the bikes handle with the larger rubber. They cited easier initial turn in, increased rear cornering grip and improved lap times with the 190/55s.

---

Just an FYI. In Road Racing Worlds literbike comparos, they put all the bikes on 190/55ZR17 control rubber so they're all on an equal footing. They avoid making any compensations to restore original geometry and their testers who I have a lot of respect for(all AMA pros) have commented favorably on the way the bikes handle with the larger rubber. They cited easier initial turn in, increased rear cornering grip and improved lap times with the 190/55s.

Your right I have read the 2007 RRW liter bike comparo again last night and they did exactly as you stated. RRW is the only mag I actually buy I respect most of what they print.

You still have a copy of that test? I thought I was the only one who saved all those back issues. I pulled my copy out yesterday and reread it, it has the 2007 CBR 1000RR vs the R1 and ZX-10R with the GSXR 1000 strangely absent. Yea, they do a good job, Jeremey Toye was their top tester back then, he'd just came back from setting a 120.86 mph record on the Isle of Man TT for fastest lap by a newcomer, Mcguiness was 9 mph faster that year. I think that article was in the same issue, Mark Millers IOM summer or something like that.

* Last updated by: Kruz on 9/1/2010 @ 12:38 PM *

---

Man, you guys are crazy with your facts and figures and historical notes. It's like a couple of baseball fenatics. lol

But we love it.

Who was the first guy to top 150 mph on a motorcycle at the Bonneville Salt Flats riding what bike?????? (Snicker, snicker I bet you guys will get it without even googling).

---

I forgot his name but he was the frist stunter/squid also he had his nuts on the fender and his arms stretched out holding the bars wearing a damn thong. YUCK

You still have a copy of that test? I thought I was the only one who saved all those back issues. I pulled my copy out yesterday and reread it, it has the 2007 CBR 1000RR vs the R1 and ZX-10R with the GSXR 1000 strangely absent. Yea, they do a good job, Jeremey Toye was their top tester back then, he'd just came back from setting a 120.86 mph record on the Isle of Man TT for fastest lap by a newcomer, Mcguiness was 9 mph faster that year. I think that article was in the same issue, Mark Millers IOM summer or something like that.

I can't help myself it’s a horrible addiction.

Rollie Free on the Vincent Black Shadow.

Might have been what started the streaking fad in the 60s.

---

could you imagine the pain assuming you lived crashing at 150 damn near naked and having the salt covering your burned up rashed out body.

* Last updated by: willidx4 on 9/1/2010 @ 3:32 PM *

"During the speed trials, Free was able to push the Vincent to an average of 148.6 mph. He decided to go for the 150 mph mark. Thinking that his racing leathers may be causing drag, Free decided to strip down to swimming shorts for the final run. He made the run lying flat, legs outstretched behind the Vincent, keeping his head low and guiding the bike by looking down and following a black stripe painted on the salt bed. The striptease act paid off for Free and he was able to cover the mile in 23.9 seconds, cracking the 150 mph barrier. On the return run, he went even faster, ending the day with an average speed of 150.313 mph. The mark broke an 11-year-old record (136.18 mph) held by Joe Petrali."

http://www.motorcyclemuseum.org/halloffame/detail.aspx?racerid=178

could you imagine the pain assuming you lived crashing at 150 damn near naked

That thing looks pretty painful even in normal riding position. There's no seat.

Looks like he has on a swim hat for aeros. Guess they hadn't invented the motorcycle helmet yet.

---