I have been building my SBC 350 for sometime and finally got it started. I am currently using some QJ I bought off of ebay for now, but have been building the QJ that came with the old SBC. I built it for torque on off-roading.
Vehicle:
1986 FJ60, 4.11 diff gears, 33x15 tires (sometimes will have 35x17s). Toyota 4 speed, with Ranger overdrive gear splitter (27%).
Engine:
1973 4 bolt mains, 350 bored .060 over, so 360ci now
GMPP Vortec cast iron heads (
http://www.strokerengine.com/VortecHeads.html) 180cc runners, 66cc chamber
compression 10:1
cam: retro roller lifters + roller rockers
lift: .458/.458
duration: 206/210 @ .050
LSA: 111
ICL: 107
RPM Range: 1000-5000
Rockers: 1.52
Now for the QJ:
Quadrajet #17085231 1825 HMB
Has already been in to Cliff for base brass bushings, and plating.
Have kit as well.
Measured the following:
Attribute-----------Measured Value----------------------Recipe 1
Idle Tube .036 .036
Idle Channel
.055 < size < .059 .046
Lower idle air bleed .070 .070
Upper idle air bleed (main body) .067 < size < .070 .067 to .070
Accelerator pump discharge holes
.073 .026 to .028
Main air bleed (air horn)
.082 < size < .088 .070
Idle bypass air .055
Mixture screw holes .055 .090
Main Jet .067 < size < .070 .073 (kit)
Fuel inlet seat .128 < size=.130 < .136 .125 to .130
Secondary POE well restriction .039 .032 to .038
Secondary POE restriction .052 .052 to .055
Secondary tube restriction .025 .036
Secondary hanger N K or higher
Secondary metering rods .045-.055 (DA kit)
My caliper broke and am waiting for new one to show up, so I don't have measurements for the rods at this time
Now the issues I see are the ones in RED where they are larger than expected. I just did read a post by Cliff indicating a part he sells, that is a drive in or a screw in for Idle Channel
The Accel pump discharge holes are way big, but I have check them several times. The lower picture on page 34 of the book, is there I measured the holes exactly where the red straws are pointing. They look and are larger - .073
And the main air bleed (air horn) is pictured on page 32, the right top pic with the pin vise inserted into the hole.
Comments, suggestions on what to proceed are welcome
dougbert
My aim is to get to Recipe 1, as noted in the right most column.
