Filed under: Convertibles, Videos, Mazda
From the Awesome Files: V6 Miata auto-x weapon
Follow the jump for a video of the owner discussing and driving the car
You don't need to spend much time with a Miata to "get" why so many drivers are attracted to them. Perfectly executed and relentlessly entertaining, it's no surprise that Mazda's little roadster is the track-day weapon of choice for a number of people. While countless 4-banger Miatas do their thing on the autocross circuit, one Mark Snell was interested in kicking things up a level so he could run with the big boys in their 'Vettes and similar machinery. His solution? Drop a Mazda 2.5L V6 into his blue roadster's engine bay, then modify and tune it to the point where it's pushing 180 horsepower to the rear wheels. The view underhood is plenty cool -- we especially dig those Suzuki GSX-R1000 throttle bodies he's added. The Miata sounds pretty mean, too. Follow the jump for a video in which Snell gives a tour of his car and discusses the modifications he's made before taking viewers for a quick spin. We believe that this is what fun looks like. Thanks for the tip, Ryan!
[Source: Driving Sports]
Reader Comments (Page 1 of 5)
emix 3:13PM (5/11/2008)
180 horsepower isn't very much from a 6 cylinder, even its thats a number from the rear wheels.
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John R 3:33PM (5/11/2008)
I'd disagree.
If you figure a 20% drivetrain loss, the engine is probably making 216hp itself, today's V6 Sonatas make 238hp. Also keep in mind that it is a 2.5 liter, Nissan makes 4-pots that are that big and this motor is normally found in Mazda MX-6s and Mazda 626s, so we're talking circa 1995 state of the art, so 200hp would be par.
So as a result 200+hp in something as light as '92 Miata would be something to worry about in an Autocross.
Josh 3:43PM (5/11/2008)
I agree. This is not a lot of power from a v6, even including 20% drivetrain loss. I think more could have been achieved from a lighter 4 cylinder with a turbocharger.
With the proper setup, less weight would have been added to the car and more power, giving it more of a power to weight advantage.
lamboman 4:59PM (5/11/2008)
Agreed, not much power. That car could have a LOT more performance...
Derek 5:37PM (5/11/2008)
Consider that most V6's today have around 1L more displacement. In hp/l terms, this is equal to a 250hp 3.5L V6, and that's at the ground. Plus he stated that all the internals are stock. I'm sure the engine has much more potential with compression, cam and porting.
Also remember that autocross is more about torque than hp. The extra 700cc he has over the 4 banger likely increases his midrange kick a bunch without having much extra weight over the nose and more linear delivery than a turbo.
havoc 7:11PM (5/11/2008)
the 2.5l duratec 6 came in various tunes and horsepower. the version for the ford contour was rated 160hp, for the cougar it was 170/160 (the latter for the autos iirc), etc. those numbers are still on par with other engines form that era, with that displacement.
the countour svt was rated at 200 or 205 (flywheel)
bc 12:12AM (5/12/2008)
No, the Duratec 2.5l made 170hp in the Contour with either transmission, using 87 octane regular. The Mazda 2.5l in the 626, which was *not* the same, made 164hp using 89 octane mid-grade, a bit less with regular as the computer dialed back the timing . Considering that the contemporaneous Nissan 3.0l in the Maxima made 160/190 hp depending on trim, while the Toyota 3.0l in the Camry made 188hp, this is not at all bad.
I'm sure he could get even more power out of it, but maximum power may not be what he's concerned with.
Mobius_1 6:09AM (5/12/2008)
Just wondering, will the Porsche 911 GT3 flat-six (or the GT-R's turbo six) fit in there? That would be fun, though danger is probably more appropriate
mk 10:45AM (5/12/2008)
@Mobius_1...
As a Subaru AND miata owner... no, a flat engine is not going to fit between the rails in a Miata. Not a chance. The engine is nice and low, but FAR too wide for most inline or longitudinal V engine cars.
The GT-R's turbo 6 is probably simply too big for the engine bay. The miata is a pretty small car, especially the NA and NB versions.
A ford or chevy small-block is probably the best bet in a miata for monster power.
mcheddadi 3:13PM (5/11/2008)
That metal rattling sound isn't reassuring...
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Brian 3:31PM (5/11/2008)
That's not metal, thats what it sounds like when slick tires pick up road stones and dirt and throw it inside the wheel wells and undercarriage of a car with no interior.
Sounds like a race car to me.
Seoultrain 3:31PM (5/11/2008)
yeah, I'm hoping that's just gravel on the road, and without any sound deadening, it's understandable that it's so loud.
Of course, the solution is to drown it all out with that engine :)
Kattleox 3:36PM (5/11/2008)
Yeah, I know. My Miata makes all manner of wierd noises, but none that increase with RPM's. The prompt acceleration was quite nice though. I just hope he doesn't end up in a firey mess.
But, honestly, I have seen much cooler V-8 Miatas. They don't compete with vettes, because they ARE corvettes, but in a 2500 pound body.
anand 8:36AM (5/12/2008)
the "metal rattling" is just small pebbles and what not being thrown up at the underbody/wheel wells from the tires, when running R-Comps (especially low speed) on the street that is completely normal to hear
John R 3:17PM (5/11/2008)
This guy's inspired. I'd be intrested to know how much that motor weighs.
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MemphisNET 3:35PM (5/11/2008)
Very cool. Great work!
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Garythepowers 3:39PM (5/11/2008)
The Miata is a blast to drive. A Miata with a V6 very nice.
How about a Mazdaspeed Miata with the 274hp engine from the Mazdaspeed3?
That would be "the awesome"!
http://www.caroftheday.org
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jon 8:00PM (5/11/2008)
that would be a hell of a car...
mk 11:27PM (5/11/2008)
I've been waiting for that for some time.
The 2.3 or soon to be 2.5 liter DISI turbo engine in a Miata... OOOOH, yeah.
Better yet, in a Kabura (miata-based fixed-roof coupe).
C'mon Mazda... where is the zoom-zoom love? every car you make has the soul of a sports car, but where are the ACTUAL sports cars!?!
Miata needs the turbo engine as a special edition, and they need a 2-door fixed roof RWD coupe. RX8 is close, but the Renesis doesn't have the torque of even the turbo I4, let alone a new healthy V6.
And yeah, I know, the RX8 is all about handling... but there are good handling cars that also have a meatier power band.
Plus a 2 or 3 door miata-based coupe would be related to the RX8's chassis, but be shorter, stiffer, and likely lighter weight, and less expensive than Rx8's b-pillar-less chassis.
RICH BRULATO 3:52PM (5/11/2008)
The miata re-invented the convertible in 1990 then never fulfilled its destiny,Mazda let it die a slow and painful death. I owned a Miata in 1990 and was the envy of everyone, today you get laughed at for driving a Miata. If they would have only put a real engine in this car, who know what it could have become!!!!!!!!!!!!!!!!
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