Installed a cheapee turbo boost controller I got on Ebay to my 1980 300SD. Before adding I was generating 6-7 psi. After installing I now run at max 10-11psi and it's a DRASTIC difference! I cut 5 sec off my 0-60 time!

Question:

Is it standard that boost controllers have a small vent hole on the discharge valve? This thing whistles slightly at 10 psi and discharges some of the intake air into the cabin. Is this necessary or can I tape it and forget it?

Thanks all

Bert - NH

__________________

1979 300SD 83k miles Astro Silver Metallic/Black leather #3447
1990 350SDL 202k miles (3L engine from an 87 300D)Black/Grey leather
2006 Pleasure-Way Class B MoHo (Sprinter chassis) 134k miles
2005 E320CDI 270k (car is sooo fast - I can't believe it's a diesel!!!)

It's normal because the boost controller is a check valve. Without that hole the air would get stuck in the wastegate and hold it open.

Why do you have it inside?

It's inside so I can adjust it

__________________

1979 300SD 83k miles Astro Silver Metallic/Black leather #3447
1990 350SDL 202k miles (3L engine from an 87 300D)Black/Grey leather
2006 Pleasure-Way Class B MoHo (Sprinter chassis) 134k miles
2005 E320CDI 270k (car is sooo fast - I can't believe it's a diesel!!!)