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#41
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Since this came up to the top again - the book is Chevrolet Power page 154 on the racing 90 degree V6 "The GM Motorsports Technology Group has developed a lubrication system modification that improves rod oiling at high speeds. this modification is highly recommended for V6/90 engines that are operated for sustained periods above 7500" "slot 0.150 wide and 0.150 deep" Modify the upper main bearing inserts by drilling two equally spaced 1/8" oil feed holes on both sides of the original oil hole making 5 holes in each upper bearing half"
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#42
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Looks like I am going to have to be VERY careful with a cutoff wheel. I will have to use a very small diameter/worn out wheel too.
The pic shows the grove to the one side. Should it be done like this or does doing both sides have merit ? |
#43
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The Chevy blocks they did both sides about the same.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#44
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What about trying to drill a series of side by side holes and then use a small burr to connect the holes making a grove?
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My Half AN Injun..... |
#45
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I would copy what BES did. Its proven way... Only one side
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My Half AN Injun..... |
#46
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I took Tom Kilroy's engine apart no real trick oiling mods Luhne oil pump coated bearings 2 seasons racing I think 140 runs looked like the day I put it together made just under 1000 hp
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2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
#47
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What's he revving it to Richie?
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My Half AN Injun..... |
#48
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7800 8000
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2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
#49
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Dremel cutoff wheels come thick or thin....plus various burrs, routers and such. Suggest a good variable speed type. Also Dremel has drill type chucks available instead of using collets. Handy tool to have around.
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#50
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could make a fixture that bolts to the main web where you want the groove,that has the groove shape in it. would work as a guild to help not to mess up , because chances are there will be a slip or 2 ...
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My Half AN Injun..... |
#51
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I would use a double cut ball file chucked up in a 90 degree dotco.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#52
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X2 on the small ball cut Burr!
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
#53
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If you see Tony's stuff, it is obvious that they do it by hand, but that being said, they probably have had a lot of practice.
I am partial to copying the concept but having tools do the work consistently on each main saddle, (all the same). Whether it makes any difference? Who would know? (if the "fix" takes care of the oiling issue and the engine runs great with either method). Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#54
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Cut a slot in an old bearing and practice on an old block. Practice until you are confident in the outcome. Doesn't look to hard to duplicate. I wonder how the bearings were cut in the other pictures, they looked like they were done on a machine.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#55
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Just thinking
Quote:
Watcha think? Clay
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All the federales say,they could've had him any day They only let him slip away, out of kindness...I suppose Poncho & Lefty |
#56
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Quote:
We did "oil surveys" on our research engines at work. Lots and lots of pressure taps and lot and lots of Thermocouples to read the temps. Mapped each new engine. Roush typically did the work (actually testing the engine on a dyno) as using Research Engine Dynos was way too expensive to be running that kind of test. Deal is as you change the pressure in the engine, the "Orifices" change in flow value so at the end of the day you size the oil flow holes for the best overall deal you can work out over the oil pressure/flow range of the engine. Hope that helps. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#57
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Quote:
Use cut off wheels all the time. I have a 1/8" electric at the house that should do the trick. |
#58
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GOFAST can do his bearing mod for around 150$. So thats another option.
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#59
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Always wondered if there was a specific crank oil this better for feeding things?
__________________
Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#60
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Someone mentioned this again, so I brought it back up. I like GOFASTs option. Think I am doing that. Looks like it does the same thing and you don't have to cut into you block.
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