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Aug. 7, 2010 6:10 a.m. zomby woof Dork

With these rules?

This is an open wheel tube chassis 4 cyl. circle track class that I'm starting to look at seriously.

Front engine - rear wheel drive only.

Any 4 cylinder, single cam, 2 valve per cylinder up to 2400 cc.

Mass produced production car heads only.

Wet sump oil system only.

Two barrel carburetors, gasoline and natural aspiration only. No fuel injection, turbo blowers or nitro.

Max. engine set back to be 20" from center of front wheels to front of engine block.

Weight of car with driver after feature to be : Ford 2300 cc, hydraulic lifter engine -1700 lbs.

All other .85 lbs per cc
Aug. 7, 2010 6:20 a.m. 44Dwarf HalfDork

2300 in a pinto
Aug. 7, 2010 6:58 a.m. MrBenjamonkey Reader

Honda A20 out of an 80s Accord? 120 hp stock. With the displacement correction, you might look at a 2tc as well.

Edit, scratch the Honda, it's a 12 valve.
Aug. 7, 2010 8:12 a.m. Kia_racer HalfDork

Can you sleeve em? If you can that would open up a few more options.
Aug. 7, 2010 8:21 a.m. cxhb Reader

The ford 2300 pinto gets my vote.
Aug. 7, 2010 8:26 a.m. minimac SuperDork

Iron Duke? A gazillion were made and parts are still available.
Aug. 7, 2010 9:20 a.m. P71 SuperDork

The Ford 2300 was a weezer though, and HEAVY. Datsun Z24 gets my vote, or maybe Nissan KA24 (from the pickup) if you can find a 2Bbl manifold for it.
Aug. 7, 2010 9:33 a.m. Jay Dork

Porsche 914 2.0 or some kind of stroked ACVW lump. Save the weight & remove failure points of a water cooling system.
Aug. 7, 2010 9:41 a.m. zomby woof Dork

Interesting.

I thought about the air cooled motors, but they're pushrod, and I'd rather have water cooling than pushrods. Not big on the 2300 Ford motors, and the Duke is too big (and pushrod again) at 2500 cc.

I was thinking 1.8, or 2.0 VW. Well built, stout motors that can take RPM's, with a good supply of aftermarket parts. Manifolds shouldn't be a problem, I can make those.
Aug. 7, 2010 9:48 a.m. 2002maniac HalfDork

I think a BMW m10 with an s14 crank, high compression, lumpy cam, and a single 45 or 48 dcoe weber would scream. You could get close to 2.4 and you have some very useable power.
Aug. 7, 2010 10:36 a.m. zomby woof Dork

For some reason, that doesn't sound budget friendly.

Maybe a 2.2 Chrysler? Are good cores still available?
Aug. 7, 2010 11:26 a.m. grimmelshanks Reader

watercooled vw 8v. dirt cheap, simple, breath pretty well from what i understand
Aug. 7, 2010 1:23 p.m. Nitroracer Dork

Miata BP 240sx/Hardbody KA24E/DE
Aug. 7, 2010 3:02 p.m. 93celicaGT2 SuperDork

Nitroracer wrote:

Miata BP 240sx/Hardbody KA24E/DE

BP has twice the legal valves.

F2 from the old B2200 would work.
Aug. 7, 2010 4:15 p.m. tuna55 HalfDork

B20 overbored from an old Volvo. Don't hate on pushrods, they were good for 7 grand stock. You can overbore them to the point of taking Ford 4.6 pistons (even the wrist pin is the same) and easily make a 150 hp motor.
Aug. 7, 2010 5:40 p.m. Vigo HalfDork

Maybe a 2.2 Chrysler? Are good cores still available?

The short answer is.. yes, thousands of them.

The 2.2 dodge is pretty damn reliable and hard to break, too. You can get a carbed one up to ~130 hp pretty easily just by building the exhaust manifold, which you would do anyway, and then minor porting of bits here and there. People going all out on them have done well over 200 hp n/a, but that info is hard to find because all the info on the turbo version drowns it out on the internet. Its a sohc 8v non interference motor as delivered, but you can quickly turn it into an interference motor by mixing early pistons, later head, and a little cutting to get well over 10:1 compression on everyday junkyard parts.
Aug. 7, 2010 10:04 p.m. MrBenjamonkey Reader

By the formula, it looks like you could use a 1.6L motor and run your car weight at 1360 lbs. I don't know if I'd be looking at the larger displacement engines suggested here.

Food for thought. http://www.race-cars.com/engsold/toyota/1111890981/1111890981ss.htm
Aug. 8, 2010 12:31 a.m. Knurled Reader

Ford 2300, because it already is a race engine in the US and you can get race parts for it.

Known quantities are a good thing!

Not to mention, that the weight break is such that a 2300 powered car weighs what a 2-liter anything-else does. That's 300cc more torque for you.
Aug. 8, 2010 6:00 a.m. Luke SuperDork

Toyota 3TC?
Aug. 8, 2010 6:03 a.m. mad_machine SuperDork

fiat 1300/1500 128 series engine out of an X 1/9?
Aug. 8, 2010 8:45 a.m. Jensenman SuperDork

L series Datsun? Way lighter than the 2300 (aluminum head, for instance), plenty of race stuff available, easily carbed. Available in 1600cc, 1800cc and 2000cc versions.

Maybe a Toyota 22R for the same reasons as the Datsun L series. I dunno how much hotrod stuff is out there for that one, though.

Long shot, if you can find it: Mercedes 190E four banger with a 5 speed. Tough motor but I dunno how easy it would be to carb or etc. You'd probably have to build your own intake.
Aug. 8, 2010 8:57 a.m. zomby woof Dork

There are more choices than I had originally thought. I'd bet the BMW's would be fast, but also out my (low) budget. If it were 10 years earlier, I'd be thinking more about the 2.2 Chryslers.

I heard about a race ready, competitive car last night. 2.3 (I'm assuming) hyd. motor. Although I have little interest in the 2.3, that's a pretty attractive option, at 1700 lbs. The guy wants $4k for it, ready to race, and that's with a quick change rear end. I'll have a look this week.

This is the class
Aug. 8, 2010 9:20 a.m. Strike_Zero Reader

zomby woof wrote:

This is the class

Oh my . . .can I haz
Aug. 8, 2010 9:30 a.m. ReverendDexter Dork

Either 2.3L Ford or 22R.
Aug. 8, 2010 10:22 a.m. dankspeed New Reader

WOW!! That looks awesome.

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