Club FOX!
03-03-2015, 10:31 AM
#3876
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I received the Fox .50, it's a mess but has decent compression, New BOCA Bearings are already on the way. It's currently in the antifreeze tank cookin. I already tossed the loser Phillips Head Screws and have the socket head MicroFastener Screws laid out. I cleaned out every bolt hole with a tap, then sprayed each hole out with Brakleen. It'll be a goodun in a day or so.
03-03-2015, 11:16 AM
#3878
03-03-2015, 11:35 AM
#3882
It wasn't on a Fox engine, and it only messed up part of the muffler, which doesn't bother me much. But still, now I know to be more careful about that. I also replaced all the phillips with allen heads. Actually, one engine had a couple of flat head screws, obviously not originals.
03-04-2015, 06:27 AM
#3884
I plan on shopping for some mufflers for my fox small case 40s this year in the Toledo Show. I have 2 C-case 40s, one with a stock muffler and another without any muffer. I plan on building a mousse can muffler for both. I need to get good at fabricating adapters though. I made a one-piece adapter for my fox 45 to use a mousse can muffler. But the adapter is only good for bench testing because to install or remove the muffler, I have to remove the backplate to access the adapter screws.
03-04-2015, 08:25 AM
#3885
Not less restrictive, just quieter. A larger muffler has more time for the gasses to cool and volume to reduce, the reason you often see a much smaller outlet on that type. I found it was not necessary to go with the longer GMS style that inserts an alloy sleeve between the front and back housings.
As posted a while ago, my ONLY complaint with Fox was the rather loud exhaust. When I fitted the OS muffler to the 50BB's their exhaust was tamed to the rest of the 40 class engines with no discernible loss of performance.
An adapter is required due to the odd port dimensions on the Fox, with a taller and shorter profile than most other engines in that class. More often they followed the OS style in long and narrow. The adapter has to be able to fit the heads on the cap screws and that generally gives enough depth to allow for port profiling to match both ends. It does take a bit of time and effort to mark and match, but worth the effort.
Due to the bolt spacing on the Eagle IV 60 I could not follow that pattern and had to make the adapter in two pieces.
Also, if the surfaces are flat no gasket or sealant is required. One is shown there for a test due to the rather narrow wall thickness top and bottom on the OS873 that was sitting in spares and to help mark the port shape. I had to ensure the facing was flat on pretty much all the engines as they were far from perfect.
ps. As usual, we plan to hit Toledo on Friday. Be great to meet up and perhaps grab lunch.
As posted a while ago, my ONLY complaint with Fox was the rather loud exhaust. When I fitted the OS muffler to the 50BB's their exhaust was tamed to the rest of the 40 class engines with no discernible loss of performance.
An adapter is required due to the odd port dimensions on the Fox, with a taller and shorter profile than most other engines in that class. More often they followed the OS style in long and narrow. The adapter has to be able to fit the heads on the cap screws and that generally gives enough depth to allow for port profiling to match both ends. It does take a bit of time and effort to mark and match, but worth the effort.
Due to the bolt spacing on the Eagle IV 60 I could not follow that pattern and had to make the adapter in two pieces.
Also, if the surfaces are flat no gasket or sealant is required. One is shown there for a test due to the rather narrow wall thickness top and bottom on the OS873 that was sitting in spares and to help mark the port shape. I had to ensure the facing was flat on pretty much all the engines as they were far from perfect.
ps. As usual, we plan to hit Toledo on Friday. Be great to meet up and perhaps grab lunch.
Last edited by Cougar429; 03-04-2015 at 08:31 AM.
03-04-2015, 08:40 AM
#3886
Hobbsy sent me an MVVS muffler that fits the .50 (and also the B-case .40, .45, & .46 I believe). I see MVVS stuff for sale periodically on RCG and ebay. Might be worth a look for those with B-case engines needing a quieter muffler. I haven't ran the FrankenFox on it yet, but I suspect performance to be better and also be a fair bit quieter than the Fox .50 stock muffler. When it gets warmer, I'm gonna put the new P/L into the .50 and get the diesel head back on it.
03-04-2015, 08:40 AM
#3887
Not less restrictive, just quieter. A larger muffler has more time for the gasses to cool and volume to reduce, the reason you often see a much smaller outlet on that type. I found it was not necessary to go with the longer GMS style that inserts an alloy sleeve between the front and back housings.
As posted a while ago, my ONLY complaint with Fox was the rather loud exhaust. When I fitted the OS muffler to the 50BB's their exhaust was tamed to the rest of the 40 class engines with no discernible loss of performance.
An adapter is required due to the odd port dimensions on the Fox, with a taller and shorter profile than most other engines in that class. More often they followed the OS style in long and narrow. The adapter has to be able to fit the heads on the cap screws and that generally gives enough depth to allow for port profiling to match both ends. It does take a bit of time and effort to mark and match, but worth the effort.
Due to the bolt spacing on the Eagle IV 60 I could not follow that pattern and had to make the adapter in two pieces.
Also, if the surfaces are flat no gasket or sealant is required. One is shown there for a test due to the rather narrow wall thickness top and bottom on the OS873 that was sitting in spares. I had to ensure the facing was flat on pretty much all the engines as they were far from perfect.
ps. As usual, we plan to hit Toledo on Friday. Be great to meet up and perhaps grab lunch.
As posted a while ago, my ONLY complaint with Fox was the rather loud exhaust. When I fitted the OS muffler to the 50BB's their exhaust was tamed to the rest of the 40 class engines with no discernible loss of performance.
An adapter is required due to the odd port dimensions on the Fox, with a taller and shorter profile than most other engines in that class. More often they followed the OS style in long and narrow. The adapter has to be able to fit the heads on the cap screws and that generally gives enough depth to allow for port profiling to match both ends. It does take a bit of time and effort to mark and match, but worth the effort.
Due to the bolt spacing on the Eagle IV 60 I could not follow that pattern and had to make the adapter in two pieces.
Also, if the surfaces are flat no gasket or sealant is required. One is shown there for a test due to the rather narrow wall thickness top and bottom on the OS873 that was sitting in spares. I had to ensure the facing was flat on pretty much all the engines as they were far from perfect.
ps. As usual, we plan to hit Toledo on Friday. Be great to meet up and perhaps grab lunch.
Regarding muffler adapters, I purchased a one-piece adapter from Jett when I bought a tuned muffler for my Fox 74. I don't know if they make one for the C-case 40. I might call and find out. I got too many other projects right now to try to fabricate adapters, especially nice ones. (you should see the nasty adapter I cobbled up!!
)BTW, I also used an OS 873 muffler for my Fox 45 and it sounded nice. But now I took out the aft section and added a huge mousse can to it. Not tested yet due to weather. I will post the results when I get the engine run-in and tuned.
03-04-2015, 08:48 AM
#3888
Hobbsy sent me an MVVS muffler that fits the .50 (and also the B-case .40, .45, & .46 I believe). I see MVVS stuff for sale periodically on RCG and ebay. Might be worth a look for those with B-case engines needing a quieter muffler. I haven't ran the FrankenFox on it yet, but I suspect performance to be better and also be a fair bit quieter than the Fox .50 stock muffler. When it gets warmer, I'm gonna put the new P/L into the .50 and get the diesel head back on it.
03-04-2015, 08:55 AM
#3889
My last dodge I bought was a year old and 50k miles. Sold it to my dad with 237k and it's still going. 318 Magnum. It's tired, but it'll still start on a -20F day and will get you to work in 20" of snow. My current dodge has a lot more power but pathetic Goodyear tires. Only complaint with the truck is the cheap crappy tires they put on it. I'm a Mopar man for a daily driver, but my little go-fast rig is a 370hp (estimated) 358ci v8 equipped Chev S-10 2wd. I call it the fugly 5 liter eater. I'll have to see if I can find a picture of the ugly beast.
Those are the worst cars anywhere!!! You're better off with a Yugo.
03-04-2015, 09:00 AM
#3890
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Location: Kerrville,
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Davis Diesel used to make a strap-on Soundmaster muffler for the .50. I could carry on a normal conversation next to the engine whilst running it full bore. Lost it in a crash, though.
CR
CR
03-04-2015, 09:13 AM
#3891
I have a Davis Soundmaster muffler, but would need to make an adapter to fit the Fox. It will fit the OS Max 80-H without modification.
03-04-2015, 09:17 AM
#3892
Come on.. A Yugo?
03-04-2015, 09:20 AM
#3893
I've driven a Dodge since I got my drivers license and I've never had any serious problems with them. My 98 Dakota was bought a year old with 50k on it and I drove it for 13 years and sold it to my dad with 237k on it and still runs good. The 318 is a bit tired, but it never left me walking. My wife and I both drive Dodges (she used to have a Chevy) and we've had no big problems with either of them. I'll always drive a Dodge. New Chevy's and Ford's are ugly IMO.
Come on.. A Yugo?
Come on.. A Yugo?
I am slightly biased, I have/am working for both Ford and GM.
03-04-2015, 09:35 AM
#3894
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CR
CR
03-04-2015, 10:22 AM
#3895
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I am mostly a Ford guy but I've had two very good Dodges over the years, a 68 Dodge long wheel base van with a 225 slant six and 1971 Coronet wagon with the small block 318. My lone GM product was 1973 Chevy Vega Camback wagon on which I had Koni shocks and a 2.25 inch exhaust system that I pretty much made my self and it fed a Thrush Turbo Muffler. It was the two barrel version and automatic.
03-04-2015, 10:27 AM
#3896
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FIAT stands for FIX.....IT.....AGAIN......TONY!!!!!!!!!! back in 1972 and 3 i worked as a mechanic/service manager for a fiat dealership. nothing but trouble with them. fiat cars were so bad they went out of bus. in this country. after a few years when all the dust settled down they tried again with the yugo!!!!!!!!!! wasn't long and people saw the lite and red tagged them also. now fiat has bought Chrysler!!!!!! OH BOY HERE WE GO AGAIN........maybe the 3RD time will be a charm. we will just have to wait and see. in the1960's, Chrysler's line of cars rocked!!!!!!!!! and still do, lots of them being restored and worth a ton of money. But getting back to the fox issue, i like the hawk .60, one of the better 60 class engine of the day in my opinion.
Last edited by fujiman; 03-04-2015 at 10:30 AM.
03-04-2015, 10:49 AM
#3898
Maybe a header could be used for the .50 and a mouse can muffler. A bit lighter, less damage from crashes, and additional power from open exh, not to mention the loss from any muffler besides maybe the Jett types. Most Fox mufflers were designed in the 1970's when a muffler was not socially accepted, so they were not developed till the 90's which was after Dukes ruling. Don't tell me about Yugos. High maintenance for sure. I have been married to one for 35 years. ( I better not tell her that though) We never sold them in Canada, but had the Lada and Dacia which were bad news. I had a new Dodge Charger/Turismo type which I thought was good at the time. 50 mpg, and a nice ride. When I look back, it was bad, stranded a few times when it was still under warranty, shifter falling off.... Not a Dodge fan, but I just got a PT Cruiser now, and it seems much better quality than before.
03-04-2015, 11:12 AM
#3899
03-04-2015, 11:15 AM
#3900
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Married to a Yugo, LOL! Well mine was good - both the wife & the Yugo - but I had a Fiat 128 Spyder with a DOHC engine & 5-spd that was a lot of fun to drive but blew the head gasket if it got the tiniest bit hot. The last time it did that I had to shim the head. Got rid of it to a self-proclaimed automotive expert who was a gas station mechanic. He knew more about it than I did, he implied. "Go in peace," said I, as soon as he gave me the $$$. 
But neither the Yugo or the Spyder ever stranded me.
Y'know, I have a Fox Eagle 4 .60 ABC that i'll never use. I think I have a Mac's Quiet pipe & header for it, cut for a 12x8 on 15% nitro. Have to look. Anyone want to buy it?
CR
But neither the Yugo or the Spyder ever stranded me.
Y'know, I have a Fox Eagle 4 .60 ABC that i'll never use. I think I have a Mac's Quiet pipe & header for it, cut for a 12x8 on 15% nitro. Have to look. Anyone want to buy it?
CR