All Things Mk5 > How to Guides / Troubleshooting
Spark plug gaps
r5gtt:
--- Quote from: AJP on August 22, 2016, 06:58:31 pm ---
--- Quote from: r5gtt on August 22, 2016, 06:46:39 pm ---It's a shame you didn't have one fitted :-/ as ive got one ready to fit when doing the RFD and carbin clean this week if I get the time. it's going to be a pin but may as well get it done once it's all open. Hopefully you'll solve the mystery of the misfire.
--- End quote ---
Well if it does turn out to be an injector it'll be the perfect chance to stick an RS4 valve in!
Yeah it'll be a pain, but worth it. The way I see it, do as much as you can while you've got the inlet manifold off, then you've got peace of mind and won't have to worry about pulling it to bits again.
--- End quote ---
Yeah I'd check the injectors for sure as @fab5freddy said he's engine failed because of that.
I'm sticking the RS4 valve in for extra measures and I don't want to have to open that f****** inlet manifold twice. :doh:
Sorry DAN_FR I donr want to take any chances in this one and if it's no benefit then at least it's in there preventing any other issues.
Dan_FR:
Well it's your money/time. All I can do is advise, but 120 bar is easily sustained by the standard valve, that paperwork says the fuel target is met. mine holds 130 bar on the standard valve. Unless your valve is faulty or cracking early then it's pointless.
But yeah I'm out. Carry on guys
r5gtt:
I don't want to sound rude or obnoxious but I'd like to fit this just to be on the safe side.
EDIT:
The RS4 valve Increases the max fuel system pressure before it relieves it so better to have it on a stage 2 and 2+ :wink:
@AJP
Someone sent me this.
Like i said, stock handles 130 then opens to relieve pressure, but if you want to have a good amount of torque, you'll need the rs4 valve. When tuned, you may feel flat spots if you don't as most tunes request 130-133bar of fuel. Where as stock requests 127-130bar of fuel. Stock is really on the limit, but your tuner can decrease and tune around this for same peak Hp in the higher rev range.
r5gtt:
Niki gower r tech 》》》
Fuel is needed for tuning, the oem pumps cannot cope in the torque band and drop pressure and max out the injection angles.. a pump is 100% needed to run stage2+ torque numbers for sure. Both k03 and k04. And to add to this, i dont sell pumps i just tune them. I can do strong map non pump but at a compromise to the torque band. Same with every tuner i know
Valves are needed to give a min of 5bar head room to stop the valve opening. The valves come in hand to aid the pressures demands at stage 2+ when look at 350lbft+ and 130bar pressures... 3
AJP:
Bit of a tangent but thanks for the info on fuelling @r5gtt!
I called in to Statller yesterday for a chat with Steve and managed to get booked in... for the end of September! So in the meantime all being well I'll be doing some data logging tomorrow with @Tfsi_Mike.
Engine is still running very nicely.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version