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best AMC for F.A.S.T./ Pure Stock |
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WesternRed
AMC Addicted Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5808 |
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Thanks for the link, made for a good read. I wish we had some interesting race classes like that down here in Australia. Seems like there is some scope for fancy cam grinding if you want to take cheating to the next level. Like most things, if you start punching above your weight, I'm assuming questions would soon be asked.
I would be out on the paint and appearance requirements, where I would fail miserably wothout even getting into other modifications, "The car must have a presentable appearance. No primered areas, mismatched paint, or large rust-holes alloweed", the rust holes really aren't that big.
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I've finally given up drinking for good...........now I only drink for evil.
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3808 |
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This is correct (of course). Whenever I say this carb is rated at 527 CFM the stories and excuses start on how it's 600 CFM or more.
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Steve_P
AMC Addicted Charter Member Joined: Jun/28/2007 Status: Offline Points: 3808 |
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Group 19 parts, even just an R4B, voided essentially your entire warranty- including powertrain- but also steering and suspension! There is a paper from AMC to the dealerships stating this.
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n2ojoe
AMC Addicted Joined: May/04/2016 Location: Tecumseh, MI Status: Offline Points: 717 |
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Wow, this makes the ET's of the pre 1970 Pure Stock AMC's even that much more impressive to me!
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Ken_Parkman
AMC Addicted Joined: Jun/04/2009 Location: Ontario Status: Offline Points: 1814 |
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I put all the carbs on the flow bench. My bench is not big enough to properly flow a carb - for that you need a vacuum cleaner with a direct connection to the electrical powerplant and enough suction to vacuum the roof off the building - but I could turn it wide open and measure a delta p so I had a comparison between carbs. The 70 up Motorcraft flows more than the AFB. Both are smaller than a 600 Holley. Also learned aftermarket carb flow ratings are a marketing game and not really related to how big the carb is.
BTW 1" is still a fairly high pressure drop for serious performance, but not bad. Those AMC engineers had a clue. Edited by Ken_Parkman - Oct/22/2018 at 4:32pm |
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scott
AMC Addicted Joined: Jul/10/2007 Location: Wildwood Pa. Status: Offline Points: 3502 |
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Back in the infancy of stock musclecar drags, the late 80's, early
90's, I used to race my 71 Javelin AMX 401 automatic 3:54 gears. It was
stone stock, never touched or messed with. The
first event I went to was the best, 1987's Supercar Showdown at Quaker
City in Ohio. The cool thing about this event was that every car that
wanted to race had to drive from the host hotel to the track, something
like 40 miles, took about an hour. Everyone went in a big parade,
intersections were closed off, & we went on both the 4 lane highway
& 2 lane back roads. They had spotters at different locations taking
down your car # to make sure everyone made the drive, no shortcuts
allowed. NO trailers allowed!! I would guess there were 75 to 100 cars, some really unusual
stuff like an early 60's Mopar with the Sonoramic dual quads set way
out, a Hurst 300 Chrysler, a 64 Olds 442 & lots that I have
forgotten. There were only a couple regular racers there, everyone else
was pretty new to drag racing. Just a super fun time all around. The
same event held at the same track in later years was OK, but never as
good as the first year it was at Quaker City. I
also ran a few races that Musclecar Review magazine put on called
Musclecar Nationals. The races I went to were at Norwalk. That was a
really nice event, show on Saturday, race on Sunday. Anyways,
people want to know what it ran. First time out, really no idea what I
was doing it ran 15 flat. As I got more experience, different tires,
& some ignition tuning, it ran a best of 14.31, I think the MPH was
98 or 99. Most of the time it would be 14.50's. This car is probably
fairly heavy as Javelins go, lots of small options that add weight.
Front spoiler, console, fold down arm rest, vinyl top, 15 X 7 wheels all
add a few pounds. Just a couple of pics for you. |
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nda racer
AMC Addicted Joined: Nov/28/2009 Location: Ohio Status: Offline Points: 2591 |
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Do you still have the Data from that test, Ken? I had the link saved to where you posted it on Fran's forum years ago, but since his forum went down, I lost the info. I wish I'd screen shotted and saved it. All these Carb recommendations are always coming up on AMC forum esp FB (where's there's some real hopeless cases) and people thinking a Edelcrap 600 and Holley 600 are equal, let alone standard old series Holley and the HP/Avengers are equal as well, give me a headache. You're testing, plus track testing has proved that wrong. A few other sources have touched on it as well. But I haven't seen them do the testing you did. |
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nda racer
AMC Addicted Joined: Nov/28/2009 Location: Ohio Status: Offline Points: 2591 |
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That was a sweet event, Scott. A couple buddies of mine used to run it. One won his class the one year with his 68 GTO. Stock Big Block.
I have a Car Craft here somewhere a guy was running a Green 71 SST Jav with a 401. Can't remember his name, I think he won his class. |
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n2ojoe
AMC Addicted Joined: May/04/2016 Location: Tecumseh, MI Status: Offline Points: 717 |
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Thanks for sharing the story and pictures Scott! That sounds like it was a fun event.
Here is a little press from this year's Pure Stock drags- https://www.hotrod.com/articles/11-second-muscle-cars-2018-pure-stock-drags/
Edited by n2ojoe - Nov/10/2018 at 8:20am |
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racerM95
AMC Apprentice Joined: Dec/16/2018 Location: Winnipeg Canada Status: Offline Points: 37 |
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I would do a 360 Hornet Hatch Back, was a better platform than say Gremlin.... The areo (if you could call it that), was better. Remember they used them for Pro Stock...
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