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390spirit
AMC Addicted Joined: Jun/28/2008 Location: U.S.A. Status: Offline Points: 1849 |
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nothing changed but the converter, went from a JW 3000 stall, which was stalling to about 22-2400 to a Midwest performance converter 3800-4000 stall and actually flashes to that.
70 390, TH400, model 20 with 4.10's, M/T pro radial, control freaks suspension, made 348hp at the tire, 458hp at the crank, weighs 3065 with me. |
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jcisworthy
AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Your car is running some good times, I didnt know what your engine combo is, heads, compression, headers, intake, carb etc. that's all.
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390spirit
AMC Addicted Joined: Jun/28/2008 Location: U.S.A. Status: Offline Points: 1849 |
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heads are 54cc chambers, 502's I think, no port work at all, mild bowl blending compression is 10.25:1,Reed # HO1304 hyd flat tappet cam, 254/264*@.050, 108 centerline, 533/560 lift 1 3/4 hooker super comp headers with 3" exhaust H-pipe and dynomax bullet muffs 3" in and out with turndowns, out of the box torker I bought back in 1985 and a 850 DP Speed Demon carb, model 20 with 4.10's, moser axles, TH400 with forward manual VB, 275-60-15 m/t pro radials I bought used. i'm pretty happy with it, even though I've been told by other forum members that I should be embarrassed on the performance of my car as compared to someone else on here, I just think he's a Edited by 390spirit - Aug/27/2013 at 9:58am |
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390spirit
AMC Addicted Joined: Jun/28/2008 Location: U.S.A. Status: Offline Points: 1849 |
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oh ya JC, I have no problem jumping in it and going to a show with it either, just last week we went to a show that was a 130 miles round trip and used less than a 1/2 tank of gas, its pump gas car to boot!
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idrambler
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Nampa,Idaho Status: Offline Points: 2942 |
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shift rpm?????
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Jim....AMCRC
Treasure Valley AMC Club, Pres 69 AMX 401/727 74 GremlinX 401/727race only 73 Matador 2dr HT 360/727 |
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amx39068
Supporter of TheAMCForum Joined: Feb/21/2008 Location: Arizona Status: Offline Points: 11576 |
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The other forum member made that comment when both parties were being total jerks....time passes and we move on.
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Dan Curtis-Owner and CEO AZ AMC Restorations; Facebook: https://www.facebook.com/amcmusclecars/ & Curtis Real Estate Development
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390spirit
AMC Addicted Joined: Jun/28/2008 Location: U.S.A. Status: Offline Points: 1849 |
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right around 6-6200 I can hear the engine just start to flatten out around there, on the engine dyno when it had hyper pistons it made power to 6000, the cam's power range is 3800-7000 but with basically box stock heads I suspect that is the limiting factor on why it drops off there, when I can muster up some spare change I think I might get a set of edelbrock heads and send them and the intake to M&M so he can work them over really good |
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idrambler
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Nampa,Idaho Status: Offline Points: 2942 |
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I shift at around 6000 cast heads ran out of power at around 6200...
have not pushed the out of the box Edelbrocks I have on there now... my cam is a little smaller....Reed .518/.523 232/236 at 50....running 1.7 rockers on the intake side raising the lift from .518 to .550..... |
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Jim....AMCRC
Treasure Valley AMC Club, Pres 69 AMX 401/727 74 GremlinX 401/727race only 73 Matador 2dr HT 360/727 |
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jcisworthy
AMC Addicted Joined: Jul/23/2009 Location: North Carolina Status: Offline Points: 2805 |
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Your car runs great for what it is I wouldnt care what anyone says.
My new motor with ported 291's revs to 7k effortlessly with no signs of falling over and will no doubt go higher but I am not pushing it any farther than that right now. .040 over 401 little more cam and compression, lot of work on my torker and heads, 1 7/8 Doug's headers, E85. May take it to test and tune tomorrow night but not sure I am leaving for Texas on Saturday so time is tight and kinda dont want to break anything so close to going although I am confident it will be fine.
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390spirit
AMC Addicted Joined: Jun/28/2008 Location: U.S.A. Status: Offline Points: 1849 |
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well I bettered my personal best today, went 11.06@121 with a 1.57 60'
and it actually pulled the left front tire off the ground for the first time! HAPPY HAPPY HAPPY |
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