Hi, I'll try not to sound too much like a noob but have a couple questions.
Just got back in the saddle with a k8 1000 - put on the single Yosh TRS 'slip-on' that removes the collector - maintains the O2 sensor. Is the stock ECU (if that's the right term) going to accomodate for the added air flow or am I at risk of running lean without adding some sort of fuel control (PC III or Bazzaz)?
Next, I've read your feeling on the TRE, so is my money best spent on a PCIII or similar if that is the extent of what I am going to do to the bike? I have a qualified shop by me that can Dyno it to get it right.
The Stock o2 sensor is narrow band sensor that tells the ECU that is within a very small range. Either its in or its out. It doesn't have the capacity to make mapping changes and is not a closed loop system like a car.
So yes....it would be a good idea to buy a Bazzaz system and get it tuned. The TRE works great if you plan on exceeding 186mph...
Hey Chip - Kudos for sharing valuable info
Have you used the Yoshi Double Stack Intake Trumphets & if so what do you think?? There are alot of money for 2 stacks!
What max compression ratio would you advise running on 95RON Octane pump gas?
Have you any experience/opinions with the new type BPF's (Big Piston Forks) & if so do you know if they can be retro fitted to a K6 1k easily without swappig/modifying the stock triple clamps?
Is there any way of getting a K7/8 head & valve to fit a K5/6 & if so are the benefit worth the effort??
Yosh Double Stacks - No.....they are way to expensive!!!!!!!!!!!!
Max Compression for pump gas - This is one of the biggest problems with pump gas. It is so dramatically different from one pump to the next that there is no right answer. You have to be pretty conservitive with pump gas because of all the different factors involved.
No experiance with the new Showa forks. I might have some more info on friday.
The 05/06 head has the motor mounts on it.....the 07/08 head does not....so the head will bolt on the motor, but not in the chassis.
Digging back through my old emails, I happened on one from my tuner. When he adjusted the valves on my K6 a couple of months ago, he happened to notice that the cam timing was retarded. Like, 4 degrees on the intake and almost 8 on the exhaust (IIRC). We are going to get a set of adjustable sprockts and adapters (stockers are pressed on). Once this is done and the timing is set to stock specs, can I expect more low-end and midrange?
Your tuner is an idiot. What your discribing does not make since. Leave it alone or take it to somebody competent.
why would he degree the cams while doing a valave clearance? Weird.
I tried it a couple times in the bike, but now that i am older and wiser I only degree the cams with the engine out of the bike. So much easier.
We did it at Laguna this year....on pit wall. It wasn't fun.
Thank you very much Chip!!!
That's what I thought.
And one more Q for you:
Stock engine. Polishing ports without actually changing their shapes - is it worth the pain?
What kind of gain can I expect, if any?
Nope. Polishing won't do anything....in fact it might make it worse. You need some texture in the ports to induce tumbling and break up flow on the port walls.