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mbwicz 
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Joined: Feb/20/2019 Location: Buffalo, NY Status: Offline Points: 1382 |
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 Posted: May/07/2022 at 11:38am |
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If nothing else, the Eddy heads would give you a chance to try a different valve spring setup. If you get the valve float under control, then the extra RPM from slippage may not be that big of an issue, if the misfire goes away.
But it would be interesting to try!
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1970 AMX, one step forward, one step back. Both steps cost time and money.
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WesternRed
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Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5137 |
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Posted: May/08/2022 at 5:32pm |
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I was saving the Eddys as an upgrade for the winder break, we only have 3 more weeks of racing this season, but I'm going to have a crack at getting them on before the track shuts. I wanted to do a bit of work on them before installation and managed to get one finished this weekend, made a start on the other. Seems there is not that much to do to them really, just gasket match them and smooth out the runners, mostly sanding roll work, just need more sanding rolls now. If they work beyond my expectations and drop me into the 10's at least I would have the winter break to install a cage in the car. Pretty unlikely I know, I'm thinking they might be worth a couple of tenths, 40 lbs off the front has to help if nothing else. Intake:   Exhaut:   |
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I've finally given up drinking for good...........now I only drink for evil.
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Steve Obertanec
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Joined: Nov/26/2012 Location: Lodi Ohio Status: Offline Points: 204 |
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Posted: May/08/2022 at 9:18pm |
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I'd check the valve job. The factory valve job is marginal at best.
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Steve Obertanec
www.stevandracing.com |
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WesternRed
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Posted: May/09/2022 at 3:49am |
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Hopefully I can get them in for a quick skim and a decent valve job before they go on.
Got hold of some fresh sanding rolls today, so maybe I can sort out that area around the sides of the exhaust valve guide boss as well. I also have some upgraded valve springs to go on.
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I've finally given up drinking for good...........now I only drink for evil.
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WesternRed
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Posted: May/21/2022 at 2:49am |
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I've been working away on the head swap, but rather than post a heap of boring photos I've done a little video instead:
Just need to get to the track before it shuts for winter now to see if all of the trouble was worth it. PS: Just realised that I haven't hooked up the brake booster hose yet. |
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I've finally given up drinking for good...........now I only drink for evil.
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PROSTOCKTOM
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Posted: May/21/2022 at 3:11am |
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Sound great. Has it changed your tuning curve or have you had time to get into that yet?
Tom
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1949 Ford Business Coupe
1969 AMC Rambler Rouge, Tube Chassis Race Car 1974 AMC Hornet Hatchback, Wally Booth Outlaw NPS Race Car Project 1990 Ford F-350 Supercab Dually |
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WesternRed
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Posted: May/21/2022 at 3:26am |
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There is some little bloke from Holley inside twiddling the dials, i.e. mostly running closed loop so I guess it will sort itself out. Not sure if I should be changing the timing for the alloy heads, compression should be up from 10.5 to 11.0, but then alloy heads are supposed to like a little more compression.
Any bold predictions on what it will do, has run 11.6 @ 115 mph with the iron heads, some porting involved, but still factory valves. Edited by WesternRed - May/21/2022 at 3:28am |
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I've finally given up drinking for good...........now I only drink for evil.
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