320/6 running very bad

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Leinho
Newbee
Posts: 11
Joined: Wed Sep 11, 2019 5:40 am
My E21(s): `80 320/6 Manual

320/6 running very bad

Post by Leinho »

Ok where to start. My 320/6 that I bought 4 years ago underwent major restoration. Engine included, I bought pistons, rings, head rebuild and everything else. Put it together. New coil, ignitions module, rotor, cap, wires and plugs. Sigh.
Thing is I'm running a Holley two barrel. Think it's a 360 CFM. Thing is I tried running it with a Weber Idf and the same happened.
The issue is the car starts but has a major fail at Lower rpms and only revs good after 4000rpm. And if you drive it, it cant even climb the slightest uphill having to Abby the throttle to make it go.
Could it be too much fuel? Been trying different carbs. Tomorrow till try a single barrell Holley yo see if thata better


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Leinho
Newbee
Posts: 11
Joined: Wed Sep 11, 2019 5:40 am
My E21(s): `80 320/6 Manual

Re: 320/6 running very bad

Post by Leinho »

Update. Tried a Holley 221. Single barrel carburetor. Car works a lot better. Seems like the doubles were too much even with tiny jets. Will try to fine tune this one and give another update.
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Jeroen
Site Admin
Posts: 29804
Joined: Tue Sep 14, 2004 12:23 pm
My E21(s): '81 323i Baur
Location: The Netherlands
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Re: 320/6 running very bad

Post by Jeroen »

Some positive developments, fingers crossed now! Sorry, no carb expert myself...
Regards/groeten, Jeroen
Leinho
Newbee
Posts: 11
Joined: Wed Sep 11, 2019 5:40 am
My E21(s): `80 320/6 Manual

Re: 320/6 running very bad

Post by Leinho »

BUMP
Witout the OEM 320/6 car was undriveable. Ended up installing an EFI from fueltech. Car runs excellent now !!
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