K. Wallace's Mod?

This was the loophole quoted the last time we were talking about this 'stock' engine meeting the spirit of the rules:

The 2UZ-FE was a 4.7 L (4,664 cc/284.6 cu in) version built in Tahara, Aichi, Japan and at Toyota Motor Manufacturing Alabama. Unlike its other UZ counterparts, this version uses a cast iron block to increase durability, as it was designed for low-reving, high-torque pickup and SUV applications.
2003–2004 Lexus GX 470
1998–2005 Lexus LX 470
1998–2005 Toyota Land Cruiser
2003–2004 Toyota 4Runner
2000–2004 Toyota Tundra
2001–2004 Toyota Sequoia

Toyota Motor Manufacturing, Alabama, Inc. (commonly called TMMAL) is a truck engine factory near Huntsville, Alabama, United States. It is owned and operated by Toyota Motor Corporation of Japan. Construction completed 2003.​


Mike Linsky
​
 
I wish Herman would not put the Toyota logo on the car when he's running a Chevy under the hood. False advertising in my opinion, but he sold out to them quite a while ago so I'm sure it doesn't bother him in the least.
 
Flying Penguin said:
This was the loophole quoted the last time we were talking about this 'stock' engine meeting the spirit of the rules:

The 2UZ-FE was a 4.7 L (4,664 cc/284.6 cu in) version built in Tahara, Aichi, Japan and at Toyota Motor Manufacturing Alabama. Unlike its other UZ counterparts, this version uses a cast iron block to increase durability, as it was designed for low-reving, high-torque pickup and SUV applications.
2003–2004 Lexus GX 470
1998–2005 Lexus LX 470
1998–2005 Toyota Land Cruiser
2003–2004 Toyota 4Runner
2000–2004 Toyota Tundra
2001–2004 Toyota Sequoia

Toyota Motor Manufacturing, Alabama, Inc. (commonly called TMMAL) is a truck engine factory near Huntsville, Alabama, United States. It is owned and operated by Toyota Motor Corporation of Japan. Construction completed 2003.​


Mike Linsky
​
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Here is the UMP rules. 15.1 – Engine

A.) Any American made push-rod type engine will be permitted as long as the rear of the engine bell housing flange is mounted at least 72”-inches forward from the center of the rear axle. The engine offset must remain within two (2”) inches of the center line from the cross member. The minimum engine height when measured from the ground to the center of the crankshaft is 11” inches. Other engines of the push-rod type that meet this criteria may be approved for competition.

B.) All engines used in competition must be able to be used in a conventional passenger car without alteration. Alteration of motor mounts will not be permitted. Alteration of the castings and/or fittings will not be permitted. Any machine work on the outside of the engine or machine work on the front or rear of the crankshaft will not be permitted.

C.) Aluminum blocks will not be permitted.

D.) Magnetos will not be permitted.

E.) Wet sump oiling systems must be operative and will go with a claim by DIRTcar officials. Overall dry sump systems will not be permitted.

F.) Alteration to the cooling system will be permitted. If alterations to the cooling system are made the stock-appearing hood line must be maintained.

G.) The battery must be securely mounted and shielded. The battery must not be mounted inside the driver’s cockpit.

H.) The exhaust system(s) must be mounted with the exhaust directed away from the vehicle and/or away from the ground (preferably horizontal and outside the body of the car). A maximum of 1/2” inch clearance surrounding the header pipe when directed through the firewall on the driver’s side. Local track rules will prevail when decibel and/or muffler rules.

I.) One two or four barrel carburetor is required.

J.) The engine must be a normally aspirated configuration.

K.) Fuel injection systems or electric fuel pumps will not be permitted.

L.) There may be specific engine rules issued for each region of North America that deviate from the standard UMP Modified Engine rules included herein.
Now this is some more info on the "Production" engine. Like the 1UZ-FE it has aluminum DOHC cylinder heads, MFI fuel injection, 4 valves per cylinder with bucket tappets, one-piece cast camshafts, and a cast aluminum intake manifold. For 2010, it was replaced by the 1UR-FE in all applications.
 
Flying Penguin said:
I wish Herman would not put the Toyota logo on the car when he's running a Chevy under the hood. False advertising in my opinion, but he sold out to them quite a while ago so I'm sure it doesn't bother him in the least.
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I agree with you, just ironic that he can help escalate the cost of "local" racing yet be upset when someone with more $$$ can buy his Nationwide seat.
 
I hope it blows up!;) Just dont like the idea of Toyota's runing at my local dirt track, its bad enough I have to deal with them on the road!
Save Detroit!
 
Now that I've opened that can of worms.....

6 months ago I posted about who would have the 1st. Toyota-Powered SLM..Roush-Yates,ECR,and now Toyota have dirt engines....Does Hendrick build Dirt engines,yet?....:)
 
Just saw on twitter where he posted pictures of his 2 cars. One runs the GM the other runs the Toyota.
 
DaveMcLain said:
It's going to be very interesting to see how this all plays out but it just seems that it might open the door to a lot of true specialty racing engine that you never had before. I don't know what the specs of the Toyota racing engine are but let's just say down the road some outfit comes out with a 5 inch bore spacing V8 which can make 500 cid with an 8 inch deck height. Something like that could make 200 more horsepower than anything you're seeing right now. Seems to be beyond the spirit of the class in many ways whereas now you're only seeing engines that are based on modified production designs.
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Check into the DRCE 3 prostock engine 9.0 inch deck 4.7 inch bore. You could probably build a modest 1250 HP circle track engine with that.
 
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