HighSideNZ

Yep, couldn't agree more with you DeltaBoxii The side rads were something that should have stayed with the NR500 (Nice idea, but practical??) It's not as though they had problems getting the front wheel close enough to the engine. They proved they could make the RC45 steer way before the Gen 5 came along!

I currently have a set of Shark RC45 headers on my Gen 6 so if they clear the body work then the 8th Gen pipe should be a shoe in. Remember that the 8th Gen does not have side rads so the body work is more narrow than a 6th Gen from the start. What I'm after is to get the headers merging correctly for the 180 deg crank as my current pipes merge both fronts together and both rears together. Not a biggie but it would be better for mid range if they merged correctly I feel. I'm with SEB. It would be pretty easy I expect to run these splayed front pipes in with the 6th Gen batch. Phil

Guys. The VTec valves are not tricky to do, it is just time consuming. The special part is a little 4/5mm diameter stopper that holds the valve actuator across to allow the valve and bucket to contact each other. I've done it many times and it is: (this is per bank. EG: Front or rear. Don't do both at the same time) 1. Set up the cam timing and pull the cams 2. Lift the VTec buckets and install the "stoppers" 3. Assemble it all back together and do the cam timing. 4. Measure and record all the clearances. 5. Work out which are out of tolerance. 6. Set up the cam timing and pull the cams 7. Pull the out of tolerance shims and replace with correct ones 8. Assemble it all back together and do the cam timing 9. Measure and compare the clearances 10. Readjust ones still not correct by repeating steps 6 thru 9 11. Once all is OK, set cam timing again and pull cams 12. Remove stoppers from all VTec buckets 13. Reassemble cams and do timing. 14. Move to next bank. As you can see it is time consuming as even if they are all in tolerance you still have to pull the cams twice to fit and remove the stoppers. My 2.5 cents woorth. Phil

Hi Duc2V4 Thanks for the update. Sorry, I thought there were more deposits than that seeing they had gone ahead with the prototype.

Hey guys. Another week has gone by and still no word on progress on the 8th Gen headers. Any chance that this can be followed up please! Thanks Phil

Hi Guys Any update on the Gen 8 headers please? Cheers Phil

Stray The engine casting as the same between the RC45 and Gen 5 as far as what concerns header fitment. My Shark RC45 headers fitted up without issues. I modded them to allow use of the centre stand and to change the exit from left to right to suit me Gen 6 and the LeoVince cans I have. Phil

What is your reasoning for coating the headers? They are stainless steel and consider the oldest Gen 6's around with their standard pipes! Still in one piece I'd expect. Not like the older mild steel pipes that Honda should never have used.

Don't forget that the righthand centre stand bolt, looking from the rear towards the front, is a LEFTHAND thread. There have been many, many that have been snapped off when trying to remove the stand!

I recon you could spring the headers past the centre stand looking at that photo.

Hey sfdownhill. Seeing that the O2 sensor on the 8th Gen is a M12 device, I'd like to have my set of headers with NO O2 bungs fitted, but with 3 M18 bungs included in the box. I'll position and weld my own to suit my specific circumstances if that is possible. Cheers Phil

Back on the 8th Gen headers Someone mentioned that the front pipes merge together and so do the rears. That is correct. Look at this In my opinion Honda have gone on a cost saving drive with this and it is all about reducing costs in the pipes. A single O2 sensor and crap merges. The firing order is still the same between 5th, 6th and 8th Gen so our performance pipes will possible make a bigger gain on the 8th Gen Just my opinion. Phil

The normal positioning of O2 sensors, from the Bosch documentation, is that they should be a minimum of 10 degrees above the horizontal centreline. See below:

Looking good. One thing that people may need to be aware of is the bottom O2 bung is quite level so you need to make sure it cannot get and hold water vapour during start/warm up, especially when being warmed up on the side stand.

From the figues listed for the package size and weight, this is the approximate cost to get one to New Zealand. this is in NZ$