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Author Topic: Getting ready for Bonneville(rebuild)  (Read 1076637 times)

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Offline Rex Schimmer

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Re: Getting ready for Bonneville(rebuild)
« Reply #2565 on: August 31, 2020, 12:49:56 PM »
I have seen way to much of the inside of your motor!! That is real "comprehensive" destruction.

Rex
Rex

Not much matters and the rest doesn't matter at all.

Offline jl222

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Re: Getting ready for Bonneville(rebuild)
« Reply #2566 on: August 31, 2020, 01:48:00 PM »
I have seen way to much of the inside of your motor!! That is real "comprehensive" destruction.

Rex

 Found a very pinched fuel line which could have caused problem. It was under the air intake elbow.

  Our fuel lines are setup and split so that one fuel line goes to bottom fuel rail on left and to top rail  on right and the other line to top left and bottom right.  So just pinching 1/2 of the lines but still not good.
 
  On warm up when tweaking the throttle, I said it doesn't feel as responsive as usual.
 
 Pinched line could be the culprit?

   JL222


« Last Edit: August 31, 2020, 02:05:43 PM by jl222 »

Offline bvillercr

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Re: Getting ready for Bonneville(rebuild)
« Reply #2567 on: September 06, 2020, 03:33:58 PM »
The cam.  Should buff out :friday





Crank is out, bearing didn't look too bad.



Time to get these sleeves out.  What a pain in the butt that was!  My forearms and shoulders are sore today!







At least we have some pieces to work with.... :clap


« Last Edit: September 06, 2020, 03:37:13 PM by bvillercr »

Offline bvillercr

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Re: Getting ready for Bonneville(rebuild)
« Reply #2568 on: September 16, 2020, 01:10:09 PM »
We took our old AA block apart to see what it looks like. 



We took our Bebe hone to the cylinders to clean up the top for easier extraction.



Cylinder walls look pretty goods.




Offline bvillercr

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Re: Getting ready for Bonneville(rebuild)
« Reply #2569 on: September 16, 2020, 02:19:27 PM »
Pistons look good



Crank turned over real easy by hand and bearings look good too.



I had a break at the dental office.  Getting work done now.  Lol

Offline jl222

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Re: Getting ready for Bonneville(rebuild)
« Reply #2570 on: September 16, 2020, 02:23:16 PM »
 
  The AA motor has been sitting in the shop for 13 yrs and covered with a blanket, it's hard to remember exactly.

  looks like it was ready to run but wasn't because I bought the Stage 8 block.

                     JL222

Offline racergeo

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Re: Getting ready for Bonneville(rebuild)
« Reply #2571 on: September 16, 2020, 02:29:35 PM »
  I have the same NASCAR Goodyears you are using. How much tire growth do you see? On my land speed 25's I use 25.7 as a number the GY engineer gave me. I am mounting these on an 8" rim.  Thanks  George

Offline jl222

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Re: Getting ready for Bonneville(rebuild)
« Reply #2572 on: September 16, 2020, 04:03:11 PM »

  Growth is hard to measure I figure 1'' on the conservative side  But years ago when I went thru
the exit speed trap at 272 mph  I had to figure 11/2'' to match the tack speed.
 Ir could be more. leave plenty of room for growth.

             JL222

Offline racergeo

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Re: Getting ready for Bonneville(rebuild)
« Reply #2573 on: September 16, 2020, 06:07:18 PM »
  Thanks for the info, just what I was hoping for. By the way I ran TAD for many years and saw up to 46 lbs. boost and could never see the impressive carnage that you experienced. I'd be checking the cam for straight. :-P :-P

Offline jl222

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Re: Getting ready for Bonneville(rebuild)
« Reply #2574 on: September 16, 2020, 10:25:37 PM »
  Cam turned freely in block before removing. Its a large journal cam made out of high dollar material and makes the cam out of our 528 egine look wimpy. Really hard stuff that top fuel uses.
 Hope Crane cams can polish it up.

 528 engine had whole left front blown off and welded back.

 Tires... being conservative with 1 in growth was for interring data into my Bville Pro computer program which calculates speed at rpms.

  What car and class are you running?

    JL222 

   
« Last Edit: September 16, 2020, 10:31:09 PM by jl222 »

Offline jl222

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Re: Getting ready for Bonneville(rebuild)
« Reply #2575 on: September 20, 2020, 01:54:06 PM »
  Troy pressure washed the 528 block and I bb honed the cyls. Some look ify. We'll take the block to Steve Moodie's shop and see if he can hone it for the 4.310 Ross pistons that we have, if not we'll
replace the sleeves  with 4.25 sleeves and bore to 4.310.

     JL222
« Last Edit: September 20, 2020, 01:57:05 PM by jl222 »

Offline manta22

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Re: Getting ready for Bonneville(rebuild)
« Reply #2576 on: September 20, 2020, 04:23:35 PM »
Tire growth: 

My late friend John Horsman was the chief engineer of John Wyer Automotive Engineering when they ran Ford GT40s and Porsche 917s in endurance racing (Le Mans, Spa, Monza, etc). He told me that he used the figure of 4% tire expansion at 200 mph in his calculations. This was for bias-ply tires which were standard at that time.
Regards, Neil  Tucson, AZ