Golden Jubilee
Posts: 741
Joined: Sat Jun 29, 2013 12:58 am
Location: Central IL
Re: '55 R-122 rehab
You'd think I lived in BC or NL for all of the rain we've been getting (the last few days) and are slated to get over the rest of this week. The machine shop won't likely get to planing my manifolds for 1-2wks. That's alright though.
Even with all of the rain I wrote a few chips and drove them today. I might have forgotten to mention that I bought a chip reader/writer, some good tuning/data logging software, and a handful of chips.
My primary focus with the 1st chip was to make the bottom end (20-60kPa from 400rpm -1600rpm) stronger. I had to slip 2nd gear, or use the Granny gear to get the truck going previously. It's still a bit soft, but much better now. With the 2nd chip I started worrying about getting my fuel pressure back down to a more manageable level. I don't know exactly where I'm at, but I do know that I'm down below about 15psi at the moment (current gauge stops here; I'll change it out for a 0-15 when the rain lets up). Once I get the fuel pressure levels back to stock (12-13psi) with good BLMs and AFRs I will work on strengthening the bottom end. By the logs I have I believe the engine still wants more fuel down low. I'm hoping to get a another data logging run in this afternoon and possibly a 3rd chip before the day is done.
As an utter newbie to the "tuning" game I need to keep reminding myself," One thing at a time Dummy".
'64 Porsche 356 C
'68 and '73 BMW 2002s
‘14 VW Passat SE TSI
3 Vintage Sears garden tractors ('66-'74)