#41  
Old 01-23-2020, 01:28 PM
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Ok, just got out there, the tire is a General G-Max AS-05 All Season 255/35-18, front tire, US Mag Bandit 18x9.5, and using a shipping scale, came out to about 47.5 LBS. Would probably take about a half to a full LBS off, I had to hold my hand on top to steady it, and as I was moving around my hand I saw as low as 46.5 LBS. So it's in that range.

Shipping scale is not bad, pretty new, and is within < half LBS when I compare with the weight taken when I drop off to ship. It's usually right on, and have yet to have the shippers change the weights.

Tire:

https://www.tirerack.com/tires/tires...omCompare1=yes

Specs (attached pic)

Shows tire is 22lbs

So doing the math, the 18x9.5 US Bandit wheel is about 24.5 - 26.5 LBS, INCLUDING wheel stems (chrome) and wheel balance weights.

Less than the 28 LBS Summit lists, but still more than I thought they would be. When I pick it up, it sure doesn't feel like 45+ LBS. And Summit doesn't include the stem and wheel weights. Hm, wonder what that adds?


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #42  
Old 01-23-2020, 01:48 PM
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A BF Goodrich 255/60-15 weights 31 LBS by comparison.

https://www.tirerack.com/tires/tires...omCompare1=yes


Not sure the weight of the Centerline is that low, but take 11 + 31 = 42 LBS, pretty close to the same weight as the 18 with a comparable size tire.



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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #43  
Old 01-25-2020, 05:49 PM
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Digital bathroom scale says 44 pounds for the 225-70-15 Altimax and Centerline combo.

I think I will hang on to them till completed then switch out funds permitting. Should be able to get some nice coin for the Centerlines.

  #44  
Old 01-26-2020, 01:01 PM
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Yeah, that's a smaller tire, so would be a little less. But it's looking like it's so close, it's not enough to make any kind of a noticeable difference.

An Altimax 225/60/15 is 22 lbs, if you look at the specs on Tire Rack, so that makes the weight of the wheel closer to 22 lbs. So at best you save 5 lbs.

I am seeing vintage Centerlines going for around the $500 mark per pair, so yeah, you should be able to get some decent money out of them.

They make the Auto Drag III now, and seeing CWO on eBay getting $1250 or so for a set of 4.


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #45  
Old 01-26-2020, 01:28 PM
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These will really clean up the look of the car vs the Centerlines

  #46  
Old 01-29-2020, 10:21 PM
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Working on the frame stuff. I will need to reuse the pair of return lines for the tank vent and will also reuse the liquid/vapor separator. Will need to clean 50 years of gunk off the lines - yay.

Replaced both wheel bearings on the 8.5 along with the seals.

Looking at replacing the rear control arm bushings with Jonny or Roto bearings - not cheap! Speedway motors has some for $25/each but they are for 73-88 Metric racing. I ordered 2 to see if I can mod them to work. The outer diameters are the same but use 9/16 vs. 1/2" bolts, Also, the length is 0.100" shorter. Mnnh. As you can see by the pic the spherical bearing has a pair of machined adapters and a machined sleeve to make it work - I can make a new set of adapters to adapt to the earlier cars. One thing that is bad is there is no provision for lubing them. There is a groove in the middle for it but no access unless I want to drill the cast diff ears - no. I sorted out that the best thing to do is replace the bearing portions with a PTFE lined bearing from McMaster-Carr as they are exactly the same size.


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  #47  
Old 02-18-2020, 12:34 AM
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Finished up work on spherical joints. The machinist who makes our hubs made 16 inserts as a favor - they fit perfectly. Lubed up the rubber seals and installed the lot. Worked excellent: the axle moves with ease but not side to side nor twist in a horizontal plane. Pic shows how much deflection these will tolerate without issue or binding.



Tomorrow the 1997-2000 BBC roller lifter comes in and will see if an idea I have will pan out.
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  #48  
Old 02-23-2020, 09:30 PM
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The BBC lifter came in, other than the guides being 90° rotated they are no change from the 2148's - so they will not work. My work on the Crane lifters was halted as I thought I need as few variables as possible on startup, so I went with the Crower solid rollers. Cam is 220/230° and 112° separation. I degreed it in to verify fitment and buttoned up the lifter valley. Lash was set at 0.006" as the KRE heads are aluminum and will grow a bit.

Fuel line routing for the Edelbrock Port FI setup needed to be changed. Edelbrock mounts the crossover for the fuel rails in back - I wish the inlet to be there so the crossover must be moved up front. This of course causes issues with the alternator rear brace. A friend noted that the 69 T-stat housing and upper hose may be a better way to go.

Hoses are fuel injection grade with FI clamps - 60 psi should not be a big issue here - AN stuff is more trouble than it is worth. Hardlines are bubbled a bit to prevent slippage.





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  #49  
Old 02-26-2020, 12:07 PM
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Your work looks like art!

Could you use a "T" to have both the inlet and crossover at the rear?

I'm also curious how you "bubble" tubing at the clamped hose connections. Is there a tool for that?

  #50  
Old 02-26-2020, 01:07 PM
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What I was going to suggest is to use a panel mount AN fitting at the frame for that rear line, then an aluminum line and panel mount fitting mounted to a lower bellhousing bolt, and only run a flexible line from those two points. Can use AN compression fittings or AN tube nuts.

That aluminum line hanging in space there may work harden and crack/leak.

You can also use aluminum fuel line for the PCV run, if you wanted to.

If you use a 90 degree fitting into the rail, it will be closer to the end of the rail, and you can use a straight fitting on there, will save space for the rad hose.

EDIT: You might be able to use a different water neck too, to get a better angle for more space.


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
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1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #51  
Old 02-26-2020, 01:13 PM
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You can't just switch the fuel rails to the opposite sides? Is there a different thread for the crossover?


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #52  
Old 02-26-2020, 03:03 PM
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Shiny - thx, putting the "T" in the middle would be too close for the distributor for me.

HWY - the line is steel, not aluminum so work hardening hopefully will not occur.
Also, I did not relish the thought of running the line up behind the PS pump and alternator. My TA LS conversion did the same - along the frame rails and up by the master cylinder - no issues yet. I an NOT a fan of compression fittings, AN or otherwise - they always seem to leak for me.

  #53  
Old 02-26-2020, 05:32 PM
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For steel lines, you have to use the steel compression fittings, the typical aluminum compression fittings don't work, or don't work good or for long.

The steel ones I use are the Aeroquip Versa-Flare fittings, which are specifically made for use with steel line, or just use aluminum lines with the 'regular' aluminum compression fittings.

The Versa-Flare fittings are JIC, so you need to take care when mating with AN fittings. (Just have to make sure they assemble correctly) If you shop them, they are not expensive.

Steel does work harden, just to say. Just keep an eye on them I guess.

I run my lines up on the firewall. Running it to the front of the engine makes no sense to me either!

When transitioning from a non-moving area to a moving one, use flexible line, common sense thing, but figured I mention it.

You say Edelbrock mounts the crossover for the fuel rails in back? I'm not following? You can put the crossover anywhere you want, and the regulator, as long as it's on the return side of the system. I thought the fuel rails have the same thread on both ends?


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #54  
Old 02-26-2020, 09:05 PM
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Fuel rails have same threads both ends. Note there is no return line except at the pressure regulator/filter assembly. Those go straight to the tank.

Steel line flex is less than stock carb pump, note they go thru crossmember with no sopport.

  #55  
Old 02-27-2020, 08:16 AM
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Ah, I gotcha now, I was just confused with the statement 'Edelbrock mounts the crossover for the fuel rails in the back'. You can mount the crossover on either end, as well as the regulator, it's not an 'Edelbrock' thing, that's where I was stuck!

Another option is you can run the feed line into a Y, under the intake, and feed both rails from the front. You can use a regulator that has 3 ports, plumb both rails in the rear to it, and mount it anywhere you want. And then of course the return runs back to the tank.

You have a collar compressor for the fittings? That's awesome, always wanted one of those! Especially helpful for AC lines!


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #56  
Old 02-27-2020, 01:59 PM
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I think there is some confusion here...

Edelbrock sends out the stuff with the fuel rails and fittings ready to go - but for me they are in the wrong place. I bought extra fittings and tinkertoyed it to what I needed - not collar compressors used.

I have no desire to run the feed from the front - no advantage to it I see as the real estate there is crowded already.

Mark

  #57  
Old 02-27-2020, 02:18 PM
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Ahh, they send them pre-assembled. I get it.

Yeah, that one fitting on the front crossover is a compression fitting (collar). That came pre-assembled I guess?


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #58  
Old 02-27-2020, 07:01 PM
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yes, and it was on the rear side of the rails.

I am sure there are quite a few ways to route this - later when completed I will run a separate thread with pics and part numbers if others are interested - I have not seen one concerning this Edelbrock setup for Pontiacs.

Does a computer controlled distributor act as crank position sensor also?

  #59  
Old 02-28-2020, 10:13 AM
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For the most part yes, but you need a cam signal too for sequential. The dual-sync dizzys are the way to go. Thankfully, they've come down in price some.

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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #60  
Old 02-28-2020, 12:27 PM
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I wonder if the Eddy setup has that feature?


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