“The 302R engines come straight off our production line with the same short block,” explains Mike Harrison, Ford V8 engine program manager. “The forged pistons, stronger connecting rods and all the other refinements were already designed for racing, so it was straightforward to take what we learned on the track and apply it to the production car.”

This quote makes it seem as if the production car and 302R share the same engine, which I doubt. It does sound like they are VERY similar. I wonder if anyone know exactly what the differences are?

 

Same short block.

 

that in and of itself is incredible but I wonder what else is the same vs. different. If the Boss had the exact same engine as the race car it would be incredible and probably the first time in a long time this could be said of any car.

 

I have been wondering this same thing Dr Evil. With the announcement of the production road going Boss 302, I became even more intrigued and decided to drop by this site (I pop in every so often) specifically to try to find more info about this myself.

Unfortunately, exact specs and details of the "Roadrunner" race engine seem to be tough to find. In the 302R, it is tuned to an estimated 400hp according to the Ford Racing web site. For the 302R1 (the Grand Am version) no power output is mentioned on the web site. Either way, I'm sure these engines are tuned based on regulations or a handicap, and the power output in these applications is not indicative of the motor's true potential. For example, I know the 5.0 Cammer motor (which will soon be replaced in all applications by the new 5.0, I'd imagine) makes up to 550hp in certain applications, like the Roush/Yates version used in the FR500GT "Man Racer". I don't see why the new Boss motor should not be similarly capable.

I also wonder about engine RPM. The production Boss motor is said to spin up to 7500 RPM (estimated). That's up 500 RPM from the Mustang GT. Do the race engines spin even faster? I don't know, but either way, I think 7500 RPM of the production car is already higher than the Cammer in many of its race applications. Plus, the new engine has a longer stroke than the Cammer, meaning even higher piston speeds at a given RPM. That's no small feat considering this is being applied to a production car that needs to meet very high reliability standards. Still, it sounds like they designed this thing to be extremely tough, and I recall a quote from a past press release stating the engine could handle 8000 RPM easily. I figure that with the extra 500 RPM, and the cams and intake to make use of it, the engine should be capable of matching the Roush/Yates Cammer's 550hp no problem. In fact, I don't think that particular motor even spins at that high an RPM itself.

I must confess I have an agenda here. I really love the new Mustang, and would love to come back into the Ford fold for my next car in a few years. But, I don't want to give up the high revving V8 in my current car. Well, not that there will be any other alternatives out there soon anyway. Nevertheless, I am hoping for an 8000 RPM, 500 horspower naturally aspirated factory Mustang from Ford. I'm sure people will hit that with the Boss with bolts on and such, but it would be great to have that same thing in a warrantied car from the factory. Hey, the new Mustang GT had my eyebrows raised, and now the Boss has me drooling a bit. Now, I want to see them kick it up one more notch and sell me a car.

 

I don't know where but I think I read the the 302R version is spun to 8400RPM. I also think the 302R makes 450HP with the restrictors per class rules regarding HP/weight. Someone correct me on this.

 

In the engine profile article it says that Ford Racing got the first Boss 302 engines to come off the regular production lines to go directly into the race cars. Said they had ZERO failures and led more laps in competition with the new motors than any other cars in the series.

So, yes, the race engines are regular production Boss 302 engines just as they will be in the street cars. On the race cars of course they have no cats in the exhaust though so that would probably contribute a few HP.

 

I also have separate confirmation the the production and race car share the same engine. WOW!

 

Welcome back stranger!

 

http://www.youtube.com/watch?v=FREr_ZmrKc0

 

 

 

Those seats look great!!

 

Wow. Awesome!

 

well if thats not awesome i dont know what is

 

Hey Boomer!

So are you getting a Boss? I have to say this is an impressive machine, at least on paper. And I'm sure it will live up to the hype once they are out and about and tested by the mags.

 

Amazing if true. Hopefully a future production version can go to 8000 RPM. One interesting fact is that the Coyote's stroke, at 92.7mm, is actually 0.1mm shorter than the stroke of the Audi V8 which revs to 8250 RPM in the RS5 and R8 and the Audi V10 which revs to a staggering 8700RPM in the Audi R8 V10. The point being that a high revving engine with this stroke is possible in a production car.

 

I wonder if that is with the "street" set up or with the dumps open for the exhaust. Sounds incredible though!!

 

It was dynoed at way over 500hp. The difference is mainly in the tune and rpms.

 

Read this thread,,very interesting:

http://www.svtperformance.com/forums...-302-back.html

LQQK

 

Which part was interesting, the comments or the info in the first post? Seems like no more than posted here, maybe a bit less. At least comment wise.