Discussion in 'E46 M3 (2001-2006)' started by dannyboy23, Jul 30, 2019.
Any experiences good or bad?
No harm against it, give it a go it isnt expensive and I am sure the guys will tell you how dirty the old ones were.
Update, I've had them done by I A Motorsport, £97.50 inc new o-rings and filters and special delivery return carriage. Report says they weren't particularly bad but flow has still improved by 10%, and the are all now working at the same rate with an improved spray pattern. Turn around was less than a week from them leaving me to arriving back. I'm in the middle of a load of jobs at the moment so I haven't had the time to run the car with them in but as soon as I have I'll update again.
Interesting. What fuel do you run, and how long have you had the car?
I've always thought that if you run on good fuel only (Shell, BP), it would be unusual to have any injector problems.
My only slight issue was hesitation when cold. I had it done as a I was curious to see if there had been any loss of injector performance rather than an actual issue. For day to day I run Tesco 99. For Track days I run VPower. After 132000 miles no mattiwgat fuek you use there will be some dirt in the system.
Isn’t BP 95? It is in the garage opposite me? Or do they do a higher octane?
BP's regular is 95 BP Ultimate is 97
Oh right I didn’t think they did one for our cars! We’re supposed to use 98 minimum right?
There was even a sticker on my petrol gauge in the E36 Evo saying minimum 98, assumed this was the case for my E46 M.....I’ve never put in normal petrol as was told it could damage it
Most of the time I run on BP as Shell seems to be quite hard to find around east London, Kent and Essex.
Good to know as I have a BP about 100 yards away and shell v power is the other side of town!!
Bp fuel even 97 my m didnt like it just lacks response and felt flat. Made the engine ping a bit too, shell nitro best
I always put momentum 99 or v power in, Ive our normal octane fuel in before when I was desperate but only put enough to get me home to then fill up with one of the above. It’s weird as I’ve never noticed any difference in Tesco or v power in the performance of the car, also. Never had ‘bad’ fuel or water in the fuel like a lot of others either.
Am I right I’m saying that we’re inly supposed to put 98ron or higher in our cars?
Interesting. Does your car have a more aggressive map (in terms of ignition advance) than you offer customers?
I would have thought with this generation of DME that pre-ignition would be a thing of the past, once it senses it and adjusts long term trims
What’s shell nitro?
99 Ron Fuel and the best quality pump fuel in UK
Is it v power?
Yes V power Nitro +
I thought there was some secret shell Petrol I hadn’t heard of
I had mine done recently and it made a significant positive difference to how the car performed.
Unfortunately it also highlighted that one of the injectors was worn which manifested itself in problems when starting from hot so I ended up replacing the lot as I didn't want to replace just one.
Are the injectors easy to take off? I can get Abbey motorsport round the corner from me to clean them if i take them to them