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Torqstrom Build 2.0 |
Post Reply | Page 123 4> |
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Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5122 |
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Posted: Jan/31/2023 at 6:05pm |
Just got my shortblock back from a refresh at the machine shop. They spec'd out a bigger cam to make a bit more power on the high end of the RPM range. New cam specs. Got a used roller blower cam with these specs if anyone needs one. |
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Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5122 |
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Took a look at the distributor drive gear oiling hole clearance, two are blocked. The cam snout appears to be too long. There are four oiling holes, two come from the grooved area of the distributor drive gear. The other two are supposed to be exposed just in front of the cam snout. Since this one is too long those two oiling holes are blocked. Will have to correct this. |
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JGRANTAMX
AMC Addicted Joined: Jun/02/2017 Location: Maine Status: Offline Points: 1697 |
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What is your HP target?
J
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Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5122 |
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The previous incarnation of this engine made 578 HP. Not planning on making dyno runs, just going to slip it back in the car and make some passes to see if it's quicker than last year. -Steve- |
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brownspirit
AMC Addicted Joined: Mar/07/2009 Location: Georgetown, MA Status: Offline Points: 1020 |
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What was the best ET and weight of the car?
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69' BBB AMX 390/4-speed
69' s/crambler project 69’ International F210d Cummins/5+4 |
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Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5122 |
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Best 1/4 mile ET was 11.008 @ 123 MPH. Car is about 3000 lbs. -Steve-
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i6cj7
AMC Apprentice Joined: Feb/20/2018 Location: virginia Status: Offline Points: 138 |
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Intercooled? How many lbs of boost put you at 578?
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Rebel Machine
AMC Addicted Joined: Jul/03/2007 Location: Western Il Status: Offline Points: 5122 |
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No intercooler, trying to figure out how to get one in wtihout cutting car car all up. 6 lbs of boost. 93 octane pump gasoline. -Steve- |
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mbwicz
Supporter of TheAMCForum Joined: Feb/20/2019 Location: Buffalo, NY Status: Offline Points: 1991 |
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Interesting how similar the custom bullet HR is for my NA 390: duration at .050 232 238 Lobe lift .353 .353 separation 112 Timing at .050 8 44 55 3 Duration at .006 283 289 Mine hasn't run yet, so I can't comment on performance. Mike
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1970 AMX, one step forward, one step back. Both steps cost time and money.
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i6cj7
AMC Apprentice Joined: Feb/20/2018 Location: virginia Status: Offline Points: 138 |
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That seems pretty darn good for 6psi. How were your iat's? Carb/efi?
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