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11/21/17 at 17:33:05
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1  Tech Talk / Engine Repair/Modifications / Re: Grafting Mopar Victor 383 to AMC RPM Air-Gap
 on: 11/18/17 at 03:41:39 
Started by SuperStockAMX | Post by SuperStockAMX
Replacement rod, new bearings and gaskets all ordered and in the mail.
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2  Tech Talk / Engine Repair/Modifications / Re: Grafting Mopar Victor 383 to AMC RPM Air-Gap
 on: 11/14/17 at 03:58:07 
Started by SuperStockAMX | Post by SuperStockAMX
Previously, before I went to the track, I did a compression test and basically with 5 pumps it was 185 PSI across the board. Iíve been told 3 pumps, 4 pumps is correct but Iíve used 5 for last 40 years.  
 
Leak down performed on Saturday.
#1 - 14%
#8 - 11%
#7 - 12%
#3 - 20%
#6 - 30%
#5 - 13%
#4 - 36% (air rushing out intake port indicates probable bent intake valve)
#2 - 28#
 
Sunday. Tore down the engine. Crank is still laying on the upper bearings. Have not pulled damper and timing cover. All plugs, ports and chambers were dry (no oil film).  
Crankshaft is perfect.
All bearing surfaces, not great but still have material. Several rod bearings are on a different arc than the BE of the rod. #1 rod cap is blackened. Evidence that some rod bearings were spinning. Again, crank still looks new.  
Pulled main caps. None were spinning. Bearings look better, still not great. #5 was loose fit on bearings and had worse looking bearings.  
Pistons. All looked great except two; #2 has scuffing on thrust side of skirt; past the Line2Line abradable powder coating. Not really that bad. However, #6 skirts look like they were sanded on the vertical with 80 grit sandpaper. There is a slight build-up of aluminum on the thrust side of the cylinder wall.  
 
Discussed findings with Adkins and conclusion is inadequate oiling. Iím sure one more pass would have been real ugly.  
 
Iíve got another set of rods and Iím giving up on these pistons. I have to finish striping the block and will take it to a shop and I want to make sure itís still got round bores and the #6 cylinder will clean up. Basically, before I buy pistons this week, I need to be 100% that the block is perfect. Everything else, except the #4 intake valve (which looks fine, may be just debris on the seat), looks great; cam, lifters, etc.  
 
For about 1/2 hour I was about to just build that NASCAR block into a NHRA SS/J 360. Itís a killer combo. But what held me back is 1) money, 2) time, 3) I want to finish this story which was originally all about building an intake manifold for a 390.  
So stay tuned, as long as I donít need a block, this will be running before the end of the year!  
 
Pre-filter:

 
Wix filter:
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3  Racing/Off-Roading / Drag Racing / Re: Member ET's
 on: 11/12/17 at 01:39:35 
Started by Fran | Post by matadorman 401
8.90 in the 1/8 street tires 72 Matador 401  just shy of 80 mph
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4  Tech Talk / Engine Repair/Modifications / Re: Grafting Mopar Victor 383 to AMC RPM Air-Gap
 on: 11/11/17 at 03:49:08 
Started by SuperStockAMX | Post by SuperStockAMX
Pulled engine / trans today. I put this off as I my son had no school today and wanted him to help. Of course he was sick so  I trudged forward on my own.  
Im evaluating the external oil line, I can see the drivers side offers a lot more room for not only the fitting, but no starter being in the way. Headers are more friendly on the drivers side also. I bought this pan from Bobby Shahan in Arkansas. He used a single line, non-swinging pick-up exiting the drivers side. I sealed that hole and put a swinging pickup on the traditional passenger side. Guess Bobby is smarter than I thought! Iím not sure if he was running a single line because he had a Razor pump or what. I think Iíll be calling him tomorrow.
Have Real Estate work tomorrow but after work I will perform a leak-down test just to see where Iím at before I pull it apart Sunday.
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5  Tech Talk / Engine Repair/Modifications / Re: Who has experience using Razor Pump?
 on: 11/07/17 at 23:23:32 
Started by SuperStockAMX | Post by Red Devil
A dual -12 will flow roughly double a single -12.  Whether you need more than a single -12 suction line don't know ... but if you have pump issues related to the suction side, fitting a different pump isn't going to fix it unless you address your suction issues at same time.  Likewise, if you are maintaining consistent pressure with the stock pump, fitting a Razor pump isn't going to help much.
 
Sorry, don't have direct experience with the Razor ... but my take is the stock pump is already a high-volume design.  The flow limit is primarily the suction line, pan volume and oil control - keep the pump inlet fed and it will flow.  On the pressure side, the filter is typically the limit until it bypasses, and your pressure setting, clearances, oil viscosity at operating temp.  Higher pressure = more flow, assuming same passage sizes, bearing clearances, oil viscosity, etc.
 
The Razor pump has an adjustable relief valve, so can set the operating pressure where you want ... but you can make an adjustable relief for the stock pump or shim the spring if desired.  Not sure if the Razor design is less likely to cavitate at high rpm than stock, but it's supposed to be a race pump where stock wasn't designed for racing although many have success with it.    
 
Hope this helps, RD.
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6  Tech Talk / Engine Repair/Modifications / Who has experience using Razor Pump?
 on: 11/06/17 at 23:20:19 
Started by SuperStockAMX | Post by SuperStockAMX
Does a single line razor outperform a dual line OEM pump with the usual modifications? Anything I should know?
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7  Tech Talk / Restoration Corner & Member's Projects / Re: Project 69' AMX Resurrection of the"Happy Ramb
 on: 11/04/17 at 13:15:03 
Started by 390AMX69 | Post by 390AMX69
Trying to remember all my info to post up photos on here.
Its been a while. I see all my old photos died out  cry
 
AMX
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8  Tech Talk / Restoration Corner & Member's Projects / Re: Project 69' AMX Resurrection of the"Happy Ramb
 on: 11/04/17 at 13:10:31 
Started by 390AMX69 | Post by scott
Looking forward to an update.
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9  Tech Talk / Restoration Corner & Member's Projects / Re: Project 69' AMX Resurrection of the"Happy Ramb
 on: 11/04/17 at 10:41:54 
Started by 390AMX69 | Post by 390AMX69
Updates to come soon, I have made a heap of progress on those project  Shocked
 
AMX
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10  Public Arena / Chit-Chat / Been a while checking in
 on: 11/04/17 at 08:40:19 
Started by 390AMX69 | Post by 390AMX69
How's everyone been?
 
I made lots of progress on my AMX project since I was last on.
Starting to get kinda excited about it!
 
A M Cya
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