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Messages - andyf

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106
FE Technical Forum / Re: 482 going together
« on: November 28, 2017, 01:49:34 PM »
I see that the Trick Flow heads are now showing as available on the Summit website so perhaps I'll finally get this build finished! Been waiting a year for those heads........

107
I have a mid size rolling tool box that I use for engine disassembly. Just pull the parts off the engine, bag them in heavy duty plastic bags and put them in the drawers. Rolling tool boxes are fairly inexpensive at Sears and are built well enough to handle stuff like valvetrain parts, head bolts, main caps, bearings, oil pumps, etc.

108
FE Technical Forum / Re: 482 going together
« on: November 27, 2017, 12:12:59 PM »
Sounds good, I won't need them until end of the year or early in Jan. I'll shoot you a note after PRI. I wish I was going to PRI but can't make it this year. I'll be there next year.

I have the new Comp rocker arms so I'll just have to check for clearance. Valve springs won't be huge, probably 1.55 since it is just a 308R.

109
FE Technical Forum / Re: 482 going together
« on: November 24, 2017, 04:23:19 PM »
Looking good Andy!

Thanks Jay. Do you have a set of the clear valve covers available? I'd like to use at least one clear cover for the dyno session. I built clear covers for my Mopar engines but I don't have on for a FE.

110
FE Technical Forum / Re: 482 going together
« on: November 21, 2017, 03:25:38 PM »
The Aviaid pan is nice. Hopefully it fits in the car without any issues.

111
FE Technical Forum / Re: 482 going together
« on: November 21, 2017, 03:21:59 PM »
The FAST dual synch distributor clears the throttle body but it is tall enough that we'll have to run space the air cleaner up a little bit. Which will then require some hood modifications. A crab cap might work.

112
FE Technical Forum / 482 going together
« on: November 20, 2017, 12:47:39 AM »
Have a new 482 going together with some of the newest parts available. Should be a nice engine when finished. It will be going into a '63 1/2 hardtop.

113
FE Technical Forum / Re: Ignition coil mounting
« on: November 20, 2017, 12:37:28 AM »
I've made a lot of different coil brackets over time. I usually use 10 ga steel since it is fairly easy to work with but still plenty rigid. I'll mount the coil on the end of the head on a race engine or in the valley on a street engine. Here are a few pictures.

114
FE Technical Forum / Re: Crank Sensor for EFI
« on: November 20, 2017, 12:31:29 AM »
I built my own trigger wheel for my engine. I used a 36-1 design since that is what Holley used but it is possible to make other configurations. I also machined up a bracket to hold the Holley sensor. The Holley sensor is 12x1mm thread which isn't a super common thread but you can find taps without too much problem. This picture isn't of a FE, but the idea is the same. The bolt pattern and the mounting bracket location might be different on a FE but those are just details.

115
The guys who have this really figured out are the ones who run in FAST class. They have to run with stock appearing engines and full stock appearing exhaust. I know some of the tricks that they use but I don't know them all since I haven't done any of that stuff for years. But there is a fairly firm limit on how much duration you can run on the exhaust side when you have manifolds and a full exhaust system. Too much duration and you lose power everywhere. They compensate by running a lot of lift and a ton of compression but they don't run a huge amount of duration. I wouldn't recommend a FAST cam for street use, just bringing it up as an example that you don't want to get too excited with exhaust duration if you are using a full exhaust system.

If you want to see some crazy split cams take a look at what the Chevy engineers are using in the LS engines. The COPO 427 engines have 40 degrees more duration on the exhaust than the intake. Something like 230/270 for duration. I'm not sure how they came up with that. People always say "think outside the box" but I don't think I would've ever thought that far outside the box!  Here is a link to a COPO data sheet:  http://www.jegs.com/p/Chevrolet-Performance/Chevrolet-Performance-427ci-425hp-COPO-Crate-Engine-2012-2015/2804804/10002/-1

116
As a follow on I'll add that I currently have 3 race engines and they all use dual pattern cams. From what I've seen over the years, a little extra duration on the exhaust side will help extend the power curve on a race engine with open headers. But as soon as you put mufflers on the engine the dynamics all change.

A street engine will usually make more power on the dyno with extra exhaust duration but it might not work better in the car with a full exhaust system. The extra duration on the exhaust side can hurt more than it helps with a full exhaust system since the back pressure can force the exhaust gases back into the engine. So the final words from me on the subject are "it all depends" and "you won't know until you try it".

117
You might not be competitive in Pro Stock with a single pattern cam but they'll work just fine on the street. In fact, a good single pattern cams work much better than a poorly designed dual pattern cam. There isn't anything magic about a dual pattern cam, the engine wants what the engine wants.

I had a 466 inch big block in my street car for a long time and I used that engine as a test bed for a lot of parts including cams. I was doing magazine articles in those days so I was hooked up with the cam mfgs and none of the cams they sent me other worked better than the old single pattern flat tappet that I had. Comp sent me three cams for that engine. The first one was too big. It made a tiny bit more top end power but gave up a bunch of torque. They followed up with a slightly smaller cam that worked better but still wasn't as good as my old single pattern. The third cam they sent me was pretty good but I still went back to the old single pattern. The Comp engineer was sure that their new fast rate lobes and dedicated exhaust lobes were better than my 40 year old design but it didn't turn out that way.

On a street engine it is easy to out-trick yourself and to use a bunch of race stuff that doesn't actually work on a street engine. The super fast rate cams wear out on the street and they don't necessarily work very well with a full exhaust system. So if you get a dual pattern cam with the latest lobe designs it might not work as well as an old factory type design with slower lobes. Bottom line is that I wouldn't turn up my nose at a single pattern cam for a street car. I run them all the time and they work just fine. A dual pattern cam might be better, but then again it might be worse. In my case the stuff that the cam engineers thought would be better wasn't. If the engineers at the cam company require 3 tries to get close to an old school cam then the odds of some guy picking the perfect cam out of a catalog are pretty low.

118
FE Technical Forum / Re: Tunnel wedge with dual FAST throttle bodies
« on: July 25, 2017, 08:39:17 AM »
You think I should paint the old engine so it looks better in the pictures? Sorry, that isn't going to happen. The old engine is just a core at best, might be junk for all I know. I'm not spending any time making it look good.

119
FE Technical Forum / Re: FE engine build books ?
« on: July 20, 2017, 08:28:09 PM »
The book I got from Barry had a centerfold in it with Barry laying naked on a bear skin rug. I thought they all came that way, maybe I got a special deal?

120
FE Technical Forum / Re: Tunnel wedge with dual FAST throttle bodies
« on: July 18, 2017, 06:40:02 PM »
Mocked it up in the block today and the throttle bodies clear the distributor by a small amount. Maybe a little over 1/4 inch so that is enough room for the spark plug boots to go on and not have anything rub. However, the air cleaner did not clear the distributor or the linkage so we had to add a small spacer between the air cleaner and the throttle body. That will raise the air cleaner enough that a hood scoop is now required. Might look into a crab style cap but not sure there is one that will fit the FAST distributor. The FAST distributor is probably the same as the Crane distributor since Comp Cams bought out Crane Ignition, but I'm still not sure that leads anywhere. Suppose I could buy a MSD crab cap and see if it fits.........

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