E21 320i intake runner questions

[HB Chris]

My runners are making contact with the brake booster. I must need new motor mounts. But ireland is out of stock on the poly mounts.View attachment 109383

I wouldn’t use poly mount, too much vibration, and they have had failure issues.

 

[Bosozoku]

thanks for the tip i guess i will be getting the rubber mounts. Anybody know how do the dyno numbers b35 intake vs long runners?

 

[sfdon]

Just use regular mounts?
No problem with my last 50 cars....

$11.47
List price $66.67 , you save: $55.20

BMW Engine Mount 11811132323 - CORTECO

 

[sfdon]

BTW- I measure 1" gap at booster to runner..... you may need to look further than mount.
Zero chance I would use poly, cars are already noisy and vibrate too much.