M135 hesitation at 2500rpm

[BoostedGP]

Hi All,

Ive only had the car 2 weeks so still getting to know it, however I have found a hesitation.
I only get it in 7 and 8th Gear, WOT, when I allow it to pull from under 2000. as it spools through 2200-2500 it hesitates.

Initially I thought it may be surge, but on occasion it cleans up and then hesitates again just under 3000.

I now think it may be a misfire.

Car has 25000km on the clock, bone stock, running 95 with NF Sport octane booster.

what is everyones thoughts on plugs for these cars?

Mike

 

[cOlDFuSiOn]

Hmm my 335i sometimes has this, but it's when I drove the car very very hard it will cut the boost at about 3000rpm and spool down. I let the car cool off for a while then all is cool again :coolShake:

I also found it has twice hesitated but I suspect bad fuel, I filled up art another garage again (I have only used Sasol/Engen/Shell thus far) I have a bottle of NF Sport too but yet to use it..

If it happens 24/7 I say book it it.. But like I said I found it to be our crap fuel..

 

[dvst8]

Check your plugs. If you using NF Sport, your plugs are fouled.

I replaced mine at around 25k kms and they were stuffed. I ran about 3 or 4 bottles of NF and Torqo in that time.

After seeing the plugs when I removed them, i will never touch another Octane Booster. Will stick to Eth.

 

[BoostedGP]

Thanks for the info guys.

Car is running cool, cruising on the hiway, and uphill its most apparent (full load on motor)

I have only put through 2 bottles of NF (2 tanks) so will try next tank without it.

I would love to run ethanol (tuned lots of cars on it) but as a DD its just a pain to use, unless you guys got a simpler way of using / storing it?

Also does Octane Boosted make a noticeable difference on these cars, I haven't really felt an improvement over 95.

Mike

 

[Shaaim]

Ob1 is the way to go:tiptoe:

 

[200ts]

On my N54 335i NF did nothing for me, car was stock and I had a few runs on the dyno that confirmed this, perhaps with a flash it would have.


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