Any other engine in your miata...

[GraffitiPanda]

OK im posting this for obvious reasons... ANY ENGINE (that would fit reasonably) in your little beast which one would you pick... would you go CRAZY 240 style and do an SR20 DET ;P oooohhhhh or the lesser seen RB's or hey maybe an LS1 hmmm maybe a honkin V12 whoooohoo no replacement for displacement!!!

**how about if im planning on having my new miata built which would you recommend and why should i supercharge it or turbo charge (im thinking super charge delete that lag)**

so gimme food for thought if you could drop that lil 1.6L or 1.8L and cross breed who would you choose...

[Doppelgänger]

If..in the imaginary world of "if I won the lottery"......

I would have a bridge ported 3 rotor (20B) built with S5 high comp. rotors and a big fat single turbo. On a nice easy tune, this should be good for 550-600rwhp with the ability to go over 800.



After having both types of f.i. on Miatas.....i'm happier with the turbo. There is no lag. But, I also loved the super-tweaked s/c I had in my 96 that made the car so much fun to drive.

[lance]

OK im posting this for obvious reasons... ANY ENGINE (that would fit reasonably) in your little beast which one would you pick... would you go CRAZY 240 style and do an SR20 DET ;P oooohhhhh or the lesser seen RB's or hey maybe an LS1 hmmm maybe a honkin V12 whoooohoo no replacement for displacement!!!

**how about if im planning on having my new miata built which would you recommend and why should i supercharge it or turbo charge (im thinking super charge delete that lag)**

so gimme food for thought if you could drop that lil 1.6L or 1.8L and cross breed who would you choose...

LS7!!!

[amaff]

a well built 1.6 (block and head) w/ a Supercharger.

[RotorNutFD3S]

Lingenfelter prepped twin turbo LS7.

[LagunaRoadster]

LSx ftw

[Jack-MX5ATLanta.com]

Throw a Viper v10 in there :lol:

[LagunaRoadster]

I would rather have a NOS Fogger system and a T3 turbo, AIC controller, direct port nitrous injection, and a stand alone fuel management system

[wildfire0310]

The whole 20B sounds like a great idea or

a version of a 4g63 or 64. I mean thinking about a mean little 2.3/4 stocker motor, or a high reving 2.1. I have always wanted to build a de-stroked 4g64, but the stock eclipse wouldn't be the best car for it but a light weight miata would be an amazing car for it.

[GraffitiPanda]

I'm def diggin the 20b.... Hmmmm gotta see what one runs price wise but I do know where to get one....

[redrumracer]

I'm def diggin the 20b.... Hmmmm gotta see what one runs price wise but I do know where to get one....
3-4K

[MoD_Scotty]

I would rather have a NOS Fogger system and a T3 turbo, AIC controller, direct port nitrous injection, and a stand alone fuel management system

That's a good way to spend $10,000!







Back on topic, I'd go with a built 1.8L turbo. Lighter than a V8 swap, still tons of room in the engine bay, as much power as you could ever need, and a minimal amount of custom fabrication required. But that's just me, I like to make things easy.

[GVfanatic]

Throw a Viper v10 in there :lol:

im down with viper **** especially with borla exhaust. my dream motor would be the lambo v10 in it though. :banana: love 10cyl's

[DecoyOctopus]

f20c

[caseyfoster]

Built and turbo EJ257. Sex for the ears.

[DecoyOctopus]

there is such thing as too much power. the f20c i beleive would deliver 240 very predictable high revving horsepower wich would result in a very fun to drive car. a 10 or 12 or 8cyl would take away from the cars balanced nature it would become scary fast, idk just my thoughts. the rotary idea i like since it would still be a mazda, but then again 20b turbo would be alot of power.

[RotorNutFD3S]

a 10 or 12 or 8cyl would take away from the cars balanced nature it would become scary fast, idk just my thoughts.

10 or 12 cyl., yes, it would probably kill the balance. But an LSx no. According to Hot Rod Magazine, an LS1 weighs in at 430lbs with oil. Our BPs weigh in around 450lbs dry according to a post on m.net, and that's without a turbo kit. LSx swap still retains the balance of a Miata. Scary fast though? Maybe. Nathan's car was a blast to ride in but seemed very controllable.

[DecoyOctopus]

if thats true then i guess your right, but the engines center of gravity would have to be near identical to that of the bp with the corvette trans attatched, then that kind of massive low end torque on a car with such a small wheelbase im sure would cause it to be very easy to spin out while accelerating trough a curve. i just dont think it would be the same forgiving miata. then again i have never been in a lsx powered miata, i think i watched an atuox on youtube where he was running his car seemed like he stayed in 1 gear most of the time and he was moving very fast.

[MoD_Scotty]

10 or 12 cyl., yes, it would probably kill the balance. But an LSx no. According to Hot Rod Magazine, an LS1 weighs in at 430lbs with oil. Our BPs weigh in around 450lbs dry according to a post on m.net, and that's without a turbo kit. LSx swap still retains the balance of a Miata. Scary fast though? Maybe. Nathan's car was a blast to ride in but seemed very controllable.

The balance is maintained, but overall weight is definitely increased, due to everything else you need to convert (rear subframe, rear diff, tranny, braces, etc). According to Nathan's page, his LS1 Miata weighs approx 2550 without A/C or PS, but with roll bar, hard top, and soft top.

I just think it's not too hard to make the same kind of power as the LS1, but while keeping the weight of the car close to stock. (Plus, keeping A/C is nice)

EDIT: Eric, I dunno why I'm even telling this to you, considering the badass car you're driving! You obviously know what I'm talkin about!

[RotorNutFD3S]

:lol: Oh yeah, weight goes up, no doubt, but the power to weight ratio is still improved. With everything added, 50/50 should still be pretty even on the LS1 converted Miatas.

Boosting the engine normally is definitely the easier route, keeps the engine "Mazda", etc., but at the same time an LS is much more torque happy. And the LS power output will be higher overall unless you build a forged 1.8L with a large turbo. And at that point, the LS becomes less maintenance and worrisome, as long as you've built it correctly, but that goes for any build.

[Bernie]

I want a Mr. Fusion... toss in some coffee grounds, left over lunch, an old beer, a dirty diaper and blammo... 88 mph with no problems :banana:

[Roadster]

Built to the hilt N/A LS1 will be more than I can ever use. :p

[GraffitiPanda]

Wow lots of ls1 fans... I'm still siding with mike... LOL and I called racing beat today about a 20b lightweight rotor setup the guy said I need to talk to my boss and took every way to reach me down including aim LOL! So I'm guessing it's not cheep through them but what is ...

[amaff]

a 20b won't be cheap through *anyone*

[GraffitiPanda]

a 20b won't be cheap through *anyone*

by cheep i meen under $8k LOL!

and i have tracked down 10 under $3k will 0 miles...

why does everyone but mike wanna do just like EEEEVERYONE ELS and put an LS1 in a miata... that been done ALOT no need to inform there are write ups EVERYWHERE ON THE PROS AND CONS... Its really nothing to strive for there reasonably priced you can pick one up for a little over $1500 if you try and know who to talk to....
but hey maybe thats what ya want but i still just cannot see its superamazingness its just another sr20 blah blah blah type to me....

[RotorNutFD3S]

Come to think of it, a rotary swap has been done a million times more, so what if you're adding one more rotor to the equation. Anyway, it'll become interesting when one of these "what engine in my xxx?" threads actually turns into reality...

[viperbite]

lol someone should put a ka24de in a miata

[Doppelgänger]

Doing a 20B would be very expensive....it's not like dropping in a 13B..because if it was easy, then people would buy the 13B mounting kit and use a 20B instead. Look how much it is to swap a 20B into a RX-7.

I'd still love to do it though.

[ben91]

Count this post as (1) vote towards thread epic fail status.

Nothing of this will happen.

Just pud pulling.

[Jack-MX5ATLanta.com]

:lol: it would be nice if one of these threads did materialise though. But dreaming isn't always a bad thing.

[GraffitiPanda]

im not doing this for show here ppl.... ive already got a project being built and my parts on order ;) build time 5+ months... jack get a mx5atlsticker ready :)

[GraffitiPanda]

Come to think of it, a rotary swap has been done a million times more, so what if you're adding one more rotor to the equation. Anyway, it'll become interesting when one of these "what engine in my xxx?" threads actually turns into reality...

give me a percentage of how many 20b's you've ever seen in a miata and how many ls1's in a miata.....
we not talking general (ANY ROTARY) here, if we were than i would say ok thats fair but you cannot just go down to the store and buy the parts for a 20b build like you could an LS1 all of this will be custom and hard time an labor i like a challenge over simplicity....

[GraffitiPanda]

besides why does everyone think im always attacking them.. i think its my avatar. every time i make a post someone feels as tho i called the mother a prostitute to the face LOL...

this thread is OVER ill post up when people learn how to take criticism and comments not so personally :...(

[DecoyOctopus]

besides why does everyone think im always attacking them.. i think its my avatar. every time i make a post someone feels as tho i called the mother a prostitute to the face LOL...

this thread is OVER ill post up when people learn how to take criticism and comments not so personally :...(

i hate when you shout

[Doppelgänger]

mmmmmm n/a 3-rotor goodness

http://www.3rotor.com/images/fc_rx7_build/fc-20b-10.jpg


http://www.3rotor.com/images/fc_rx7_build/fc-20b-7.jpg

[amaff]

man that would be fun. I wonder how much JUST the fittings and braided hose on that engine ended up costing lol

[wildfire0310]

I can't remember if it is a 13B or a 20B but someone had a rotory swapped miata in the south east. I remember seeing photos of it at the Rspeed open house.

I would prefer a rotory miata over an LSx miata only cause it is a little less common. most of that is due to the added cost of no real good swap kits for them. I bet if there was as nice of a swap kit for them as for the LSx we would see more rotory miatas around.

[Reverend Greg]

I saw a four rotor engine 1 time ,not in a car.THAT would be cool w/ a great big GT-60 turbo, lots of under car aero and super quiet exhaust.Lambos and Ferraris wouldnt Know what hit them!

[Doppelgänger]

I worked at Downing when Rick and Jim were running R26B in the WR chassis....also got to see a few other 4-rotor race cars and got to see several of them run at Road Atlanta. The R26B is actually pretty large...don't see it fitting in any small engine bay. I've seen several 3-rotor RX-7s though. 4-rotor cars are NOT streetable :lol:

Bryan, the guy you're probably thinking of has the green NB with a 13BT swap.. fast car..and the install is very clean. I don't think there are any resident rotary Miatas here in GA.

[Reverend Greg]

Hey 'ganger check your PM box ,hint-hint.

[LagunaRoadster]

you can put in any sort of crazy motor in. but when it comes down to it, it's all about what you can actually make move. spinning tires is only entertaining for so long. and when you get uber fast, you'll start running into the limitations of the miata. aerodynamics, etc..
I like a well balanced car. 600++ hp Miata would be fun if it can hook up, but you might as well make it a drag car. If you go into a turn and jam the gas, you'll just be doing circles with that sort of horsepower.