You going to do a"before" dyno run also? The comparison would be cool.
You going to do a"before" dyno run also? The comparison would be cool.
Well, here it is. 160.38 hp. As I stated in my previous post, I have an '09 with a Yosh zx14 full pipe, K&N filter with the zx14 throttle bodies ,PCV and Autotune. A couple of things to note. I used 06 throttle bodies and left the 06 injectors in them. I was confused because the Autotune kept taking fuel away instead of adding. I ended up having a custom map made because of this. The injectors are not the same. They work fine but are different than the c14 injectors . The part number for the zx14 injectors are the same as the c14 for 08 on. The 06 and 07 zx14 injectors are different part numbers. The map for the old injectors won't work for the newer ones. The other thing to note is that there is likely more power to be had by raising the rev limiter. It is set at 10000 rpm now.( The tach says 10500 but is 500 rpm optimistic.) The rev limit for a zx14 is 11250 so it should be safe to do. Could be 5-10 more,maybe. The Autotune map was very close but the tuner got 5 more hp with manipulation.
Well, here it is. 160.38 hp.
Coomer,
There is absolutely a difference in power and the way it makes it. There is slightly less low end power but more on top. It really pulls hard in the upper revs. Fuel mileage after a couple of tanks has been about 2mpg better. Thats probably due to the map. I dont think the c14 injectors would make any more power as the performance of the zx14 didnt change over those years but who knows?
I totally understand Rawmans point about a before and after dyno run and I'm not trying to make any mine is bigger claims. Take it for what its worth. Time will tell as more of us have done this mod and get a dyno run or someone does a before and after run. Its only conjecture on my part but I think its reasonable to believe that this mod is worth in the area of 10hp. I thought I would share what I have learned as so many others have on this forum.
Coomer (or others with the ZX TB mod)....
I'm curious as to the following:
1. Below what RPM is there somewhat less power?
2. Above what RPM is there more power?
I for one do NOT want to trade low-end grunt (which the mods I have create in spades) for a high-revving bike. NOPE.
That said, I dropped the bike for 30K tuneup and was going to have the TBs installed. Noted the secondary shaft was damaged, and inside of one TB was scored. Sending them back. Given the comment on "less power down low", I'm glad I am not installing them.
Appreciate comments on 1 and 2 above from anyone that's done this mod.
Thanks,
Barry
I would make a guess that the low end power reduction he feels is due to the increased top end and it is just a feeling, or possibly the low end of the map needs to be tweaked. You should get better hp throughout the rev range.
To beat a dead horse: That is why a dyno run before and after any performance mod is critical. You can see where you are getting better and what is not working.
we finally had a "training" session for the tuning on the dyno last night(7/26).i will dyno/tune my bike by the weekend.then i will change the throttle bodies,make a pull with no map change.then tune it for the zx 14 throttle bodies.i will post my findings hopefully by the first of the week.if i can figure out how to upload,i'll post the graphs also.anxious for the results!
Has this happened yet?our dyno session has not happened yet,can't get our schedules together.but it is still going to happen.i will post my findings.the before and after will be done on the same dyno,but the pull with the zx14 TB's will probally be the following day.
our dyno session has not happened yet,can't get our schedules together.but it is still going to happen.i will post my findings.the before and after will be done on the same dyno,but the pull with the zx14 TB's will probally be the following day.