Search found 6 matches

by Old Colt
Mon Dec 19, 2016 1:26 am
Forum: Galant's Garage
Topic: Cams for 4G32
Replies: 19
Views: 8923

Re: Cams for 4G32

FWIW the #2 cam was very common in the early USA cars, it checks out to be 272° duration. Mid 70s the #6 cam was used and is 254° as I recall. I currently run a #2 with dual downs and find it has a very nice full powerband with good fuel economy.
by Old Colt
Sun Dec 18, 2016 9:27 pm
Forum: Galant's Garage
Topic: ITB selection? wanted to buy. Your thoughts!
Replies: 7
Views: 5755

Re: ITB selection? wanted to buy. Your thoughts!

I have done a Busa TB intake, These shots were quite early on.
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by Old Colt
Wed Jun 05, 2013 10:14 pm
Forum: Builds
Topic: High Compression 2.6L Astron.
Replies: 130
Views: 26337

Re: High Compression 2.6L Astron.

The trickiest part will be the timing cover and figuring out the timing chain and sprockets. Correct and I have not addressed this yet. The BMW head has idlers to guide the chain as needed to spread out to the cam sprockets, this makes the swap possible without getting to crazy. The images posted a...
by Old Colt
Mon Jun 03, 2013 9:28 pm
Forum: Builds
Topic: High Compression 2.6L Astron.
Replies: 130
Views: 26337

Re: High Compression 2.6L Astron.

I guess I should get some inspiration and move forward with this swap but I need to finish the 4G92 Mivec swap first.
by Old Colt
Mon Jun 03, 2013 8:39 am
Forum: Builds
Topic: High Compression 2.6L Astron.
Replies: 130
Views: 26337

Re: High Compression 2.6L Astron.

The area I hit water was on the front of the port as I was straightening it. I was finding on the flow bench that evening up the port each side of the guide boss worked wonders for flow. With old iron British heads we used to bore into the heads at an angle and braze in a tube providing much improve...
by Old Colt
Sun May 26, 2013 9:02 pm
Forum: Builds
Topic: High Compression 2.6L Astron.
Replies: 130
Views: 26337

Re: High Compression 2.6L Astron.

Nice build here. Many years ago I was building a head with the 2.02" intake valves and 1.6 exhausts. The way I approached mine was to move the valve seat outwards to maintain clearance between valves. This was done by making tooling that fit on the rocker shaft to guide a reamer for offset bori...