A/C Air to water intercooler? - Page 3 - PeachParts Mercedes-Benz Forum

Bajaman · #31 06-10-2008, 03:45 PM

Understood. Just curious where that number came from.

bgkast · #32 06-10-2008, 04:13 PM

Quote:

Originally Posted by babymog

So I can start by adjusting my wastegate rod to increase max. boost, since the overboost protection valve (if working) will limit to 15.6psi and wastegate (603) is supposed to limit to 10.5psi.? Hopefully the 603 ALDA also has a little headroom to provide more fuel for mid-range boost.

The gauges will tell.

BTW, I noticed that the wastegate actuator rod is adjusbable (factory) on both the turbo from the 603.960 and the .970, only a single thread and lock-nut though, not a turnbuckle type. Not sure how much length is available.

I think the 603 might run quite a bit more boost than the 10 psi of the 617. I had a wastegate actuator off of a 603 T3 and it had a cracking pressure of 10 psi. Max boost was probably about 14 psi. There is about 2" of threads on the actuator rod, so there is plenty of adjustment.

My 603 actuator is on ebay BTW:

http://cgi.ebay.com/ebaymotors/Garrett-Adjustable-Wastegate-Actuator-15psi-Large-body_W0QQcmdZViewItemQQ_trkparmsZ72Q3a635Q7c39Q3a1Q7c65Q3a12QQ_trksidZp3286Q2ec0Q2em14QQhashZitem120 271008403QQitemZ120271008403