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Racing For those that take thier Caddy's to the track

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Old 08-01-2013, 07:35 AM   #21
~JM~
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Just noticed that I already had some pics of the 368 Eldorado pan with measurements displayed. Here they are...
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Old 08-01-2013, 07:36 AM   #22
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Three more...

That's a cool project! Should be a good handling car when you are done.

~JM~

PS. I have an extra one of these Pans & a Pick-Up Tube if you're interested.
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Last edited by ~JM~; 08-01-2013 at 08:01 AM. Reason: Added PS.
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Old 08-01-2013, 09:31 AM   #23
EriktheAwful
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I already have an Eldo pan. We test fitted it and we'd have to shorten it by four inches to keep it above the bottom of the crossmember and we'd have to dimple it to fit behind the power steering rack. Our modified pan fits around the steering rack just fine, is protected by the crossmember, and the sump is the full width of the pan. Thanks for the tip and the effort posting the pics though. I'll try and post a pic of the pan when we finish welding it.
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Old 08-01-2013, 04:14 PM   #24
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The 368 Eldo pan is a lot different than the standard 500 Eldo pan. It's much more compact.

Good luck
~JM~
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Old 08-01-2013, 06:07 PM   #25
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Well, we already have the pan modified, and I'm not in the mood to buy another pan. I already have a spare front sump and Eldo pan I'll need to sell at some point, not to mention a set of block-hugger headers that won't fit, and two stock camshafts I'm not going to use.

Did I mention I bought a used cam from another person on this site? It's comparable to the MT-10, which means it'll be plenty lumpy and probably too much cam for our 650cfm Carter and 4000rpm rev limit. The important thing is that it will sound bad-***. I think that might be my saving grace with the BS judges (who decide whether or not you get penalty laps based on how cheaty your car is).
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Old 08-02-2013, 07:09 AM   #26
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The beauty of the 368 Eldo pan aside from the shape, is that they are cheap! That was what I was trying to emphasize. They are a nicer, more compact shape & they usually don't cost anywhere near the 500 Eldo pan. If you have something you want to trade, I may be interested.

You'll have no problem selling an Eldo pan for a good amount. Last I knew they were bringing as much as $200 or so, with the Pick-Up. Same with the headers... I don't know what they go for, but they should sell easily.

Do the contest rules dictate a carb no larger than 650cfm & a 4K rev limit? The rev limit won't hurt you much, but the carb is somewhat on the small side. Should make for a very responsive throttle. What type of valvetrain/rocker arm assembly are you running?

Neat project & interesting race!

~JM~

PS. You want Bad-*** sound? Run 3" exhaust out the sides! Dr. Gas has some nice oval tubing that doesn't take up much ground clearance. Buy or fabricate an X-pipe. They really make for a unique sound.

Last edited by ~JM~; 08-02-2013 at 07:23 AM. Reason: typing error
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Old 08-04-2013, 07:35 PM   #27
EriktheAwful
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http://www.24hoursoflemons.com/pricesandrules.aspx

Carb was $35 off a friend's new (used) boat motor - his boat's fuel injected. The original Q-Jet is rusted to the point of being trash. I like the Q-Jets and would run it if I could. Plus the air cleaner would fit better and I wouldn't have to use a spread-bore-square bore adapter.

Rev limit is 4000rpm to keep the engine together over 16 hours of racing. All the "reliable" American V8s blow up when you rev them to 5000rpm all day - unless you spend thousands of dollars on race parts, and the judges are known to pull valve covers and check for cheaty bits. The only sub-$500 American V8 that will hold together over 5000rpm is the 4.6 Ford 2-valve mod motor (P71 Crown Vics make excellent race cars).

Valvetrain is stock. I'm hoping it holds together.

As I stated earlier, I bought a dual 4" NASCAR boom tube for the exhaust. I plan on putting an H-pipe right behind the headers - h-pipes build torque and x-pipes build horsepower, right?

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Old 08-05-2013, 05:59 AM   #28
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4" Exhausts! Wow! That ought to sound real good. How big will the exhaust manifold outlet be after you modify it? How are you going to modify the manifolds anyway? I thought they were about impossible to weld properly.

What was the problem with the block hugger headers that they wouldn't work for you? I was fortunate enough to be able to use the Sanderson knock-offs on my Jeep. I had to dent one tube for steering rod clearance though.

I had not heard that comparison of the effects of the H-Pipe vs. the X-Pipe. I was fortunate enough to find a deal on a Dr. Gas X-Pipe on Craigslist so I bought it. I also run the Spintech mufflers by Dr. Gas on my small block Chevy Malibu & have received many positive comments & inquiries about the exhaust tone. There is a definite sweet spot in the RPM range where the engine comes onto the pipe almost like a 2-stroke does & runs real good.

I was impressed with how the Dr. Gas X-Pipe was designed. The cut out in the interior is more than just a couple of elbows merged together. It really forces the gas paths to cross each other or equalize without the 90 degree turn of the H-Pipe. Either one is more beneficial than an exhaust without a cross-over. Whatever works under your car the best is the one to use.

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Old 08-05-2013, 06:47 AM   #29
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Well I just speed read through the rules & regs. Interesting event! I've heard of it before but did not realize there was a $500 limit. I don't see how you can purchase a worthy car & have a roll bar/cage installed for that price, let alone have a good set of tires plus spares. I saw the part about some parts being exempt & I'm assuming this must be how you get around the $500 limit.

I did not see anything about the engine rules, but did see a section on exhaust sound levels. Do you think your 4" exhaust will be quiet enough? The 2.5" exhaust I described earlier that is on my Malibu will not pass the states sound test where I live. I need to cram some brass wool "baffling" into each tail-pipe & hold it in place with a large washer that is bolted to an eye-bolt that bolts to the tail pipe. Even then it sometimes fails. Below are a couple of pics of my first attempt. I ended up using a larger fender washer in the final version.
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Last edited by ~JM~; 08-05-2013 at 06:50 AM.
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Old 08-05-2013, 08:38 PM   #30
EriktheAwful
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Cages, wheels, and tires are budget exempt.

Stock manifolds are long gone. The headers I have stick out too far. I found a lakester megaphone kit that might fit, and it's available with 4" outlets.

I race in Texas, land of "what noise restriction?" It shouldn't be an issue, but if it is I'll put a set of 4" glasspacks on it.
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