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I really lost myself this weekend

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Old Jul 27, 2018 | 05:50 PM
  #301  
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Very quick turnaround from Axtell on the cylinder boring, literally ONE day. I've never had a machine shop turn work that fast! I've also got an Ultima ignition module that'll require a little rewiring to get done. Over the coming weeks I'll be putting it all back together. My garage isn't air conditioned so it's not the most fun to be working in but I wanna get this done so I'll power thru.
 
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Old Jul 27, 2018 | 07:24 PM
  #302  
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Just go to wallinworld and buy a cheap air conditioner. Why suffer. Third time’s a charm, right?
 
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Old Jul 28, 2018 | 08:50 AM
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Originally Posted by splattttttt
Just go to wallinworld and buy a cheap air conditioner. Why suffer.
Crossed my mind that's for sure. Considering the size of my garage, and that fact that the whole door is facing east and get to a laser measured 140F in the mid morning from the rising sun, I'd have to do some math to get the correctly sized one. There is a window in the garage, maybe a large window unit would work?

Originally Posted by splattttttt
Third time’s a charm, right?
I know, right?

At least this time I'm really knocking things down to earth, and tweaking the timing to go along with it. Lemme get it all broken in and reliable, then I'll build the power back up.
 
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Old Jul 28, 2018 | 05:32 PM
  #304  
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No pressure but I can’t wait to see a video of this beast off a stop. No need to burn rubber or the clutch. Just a perfect launch. I do this when the coast is clear. Quick rev to three gran a quick slip on the clutch. 123GO!!!!!!!!
No pressure
 
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Old Jul 28, 2018 | 09:55 PM
  #305  
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Right... No pressure... as that 131K mile belt snaps and I coast to a stop...
 
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Old Jul 29, 2018 | 05:39 AM
  #306  
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Those things are bullet proof Matt. They’re made out of kevlar LOL
 
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Old Aug 7, 2018 | 06:36 PM
  #307  
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Getting things back together, but being a LOT more meticulous about it. For starters, knowing EXACTLY what my compression ratio is

Finding TDC:



Using a depth gauge to see how far under the deck the piston is



Silly putty in the valve relief, then put in the burette for volume



Burette, 100ml. Got it on Ebay for like $20



Head Gasket thickness



And checking the combustion chamber volume. FWIW, dead nuts on the money from the build sheet from Hammer, 91cc



Drumroll.......................................... ..................




I also installed an Ultima 53-644 ignition module, but didn't take any pics. Perhaps by the weekend I'll be under power again. We'll see.
 

Last edited by Mattbastard; Aug 7, 2018 at 06:40 PM.
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Old Aug 7, 2018 | 06:59 PM
  #308  
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If those are flat top Pistons, which they appear to be in the pic them the Pistons would be +1.5 cc for the valve reliefs...
 
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Old Aug 7, 2018 | 07:13 PM
  #309  
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You may have issues with pinging, Matt. Those heads don't give you much of a squish band, do they?
 
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Old Aug 7, 2018 | 08:50 PM
  #310  
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Originally Posted by 98hotrodfatboy
If those are flat top Pistons, which they appear to be in the pic them the Pistons would be +1.5 cc for the valve reliefs...
Yes, you're correct on the volume, but the cavity from the valve reliefs warrants a negative value in that cell. Notice the calculator is calling it "Dome volume", hence the negative value. Back with my old pistons I used +6 since the domes displaced 6cc over the top of the piston crown.
 
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