SR20 swap in NA miata?
hey guys i have been thinking about this for quite a while and have been seriously thinking or doing the sr20 swap , does anyone know what mods are needed to make the sr20 fit into the miata, just take into consideration i am a qualified welder and mechanic so normal engine swaps and metal fabrication is like a walk in the park for me, but putting a SR into a miata is uncharted waters for me, this would be my 3rd different manufacture engine into a separate automobile company chassis, any help and guidelines would be awesome,
Robert |
Why not skip the bullshit and put a good engine in it if you were going to go through all that trouble?
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Is you be troll brah?
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I saw this swap done once before. The owner had to get all custom mounts, oil pan, ppf, exhaust/ic tubing, and a bunch of other shit that I can't remember. It was a long list and a hefty sum though. He ran a built sr20 that made 320wheel...I'd sooner just build a 1.6liter from the crank up. Just my .02.
I do love swaps though, especially crossbreed a like you're talking. If you do it, keep us posted :) |
FE3 is the better option, Equal displacement, Can be found much cheaper (KIA Sportage), and can take a good deal of boost in factory form. Also has an easy way to bolt it up to the factory miata trans, or a Turbo II rx7 trans. The oil pan on an SR20 will take a great deal of modification to fit in a miata subframe.
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Sr20's make good drift cars...u drift bro?
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personally i like the idea of the SR swap but its really not a worth while swap. the mounts are pretty basic. you will need to make a custom oil pan and pick up to fit around the steering rack. custom drive shaft, custom ppf, and the wiring. the rest is common for any build. IC pipes/ downpipes and a tune. boosting the stock 1.6 or 1.8 can put you around the same base power level for a lot less $ and down time. its what YOU want. be prepaired to figure a lot out on your own. these not much info online.
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Originally Posted by Erat
(Post 1046834)
Why not skip the bullshit and put a good engine in it if you were going to go through all that trouble?
Originally Posted by krissetsfire
(Post 1046835)
Is you be troll brah?
Originally Posted by doughboy118
(Post 1046844)
I saw this swap done once before. The owner had to get all custom mounts, oil pan, ppf, exhaust/ic tubing, and a bunch of other shit that I can't remember. It was a long list and a hefty sum though. He ran a built sr20 that made 320wheel...I'd sooner just build a 1.6liter from the crank up. Just my .02.
I do love swaps though, especially crossbreed a like you're talking. If you do it, keep us posted :) |
I'm curious why you would the SR came to mind. It's really not that special.
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Originally Posted by acro 94
(Post 1046871)
Originally Posted by Erat
(Post 1046834)
Why not skip the bullshit and put a good engine in it if you were going to go through all that trouble?
Why not skip the bullshit and put a good engine in it if you were going to go through all that trouble?
Originally Posted by acro 94
(Post 1046871)
yeah i would build my 1.6 too but the bottom end can only handle 250 before it grenades unless i can get work done to it or get a stronger bottom end either way i would end up putting the same amount into the 1.6 as i would making the SR fit |
If you work out the hp per liter, the experienced tuner at the dyno says if I had the 2 liter sr motor I'd have the same power, since I'm running the sr20 turbo. If that makes any sense.
So I agree, either do the fe3, or find a v8 in any truck, van, or v8 powered car in the junk yard and actually upgrade the engine. |
Will cost way too much to do sr20. If I was starting from scratch I could have a well sorted, fully built bp (brand new shiny motor with 0 miles and awesome parts inside) for thousands less. I wouldn't have the headache of engineering afterthoughts either.
If you're going to motor swap fe3 is practical. Anything outside of the fe3 is going to be $$$ and no return on investment in comparison. power to $ ratio. That said. BOTTOM line. 400+hp deserves a swap look. ANYTHING below is a waste unless you have time and money to burn. I always think of sweet ideas for swaps.... then realize new platform... or i need to bust out the special helmet and drool bucket. |
If you're dead set to put more effort/money/time into an engine swap rather than the commonly accepted routes for power, you should probably do a VG30DETT swap.
I'm just assuming you're a masochist. |
There was an article from FM regards to FE3 option eh?
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Isn't the SR motor all aluminum? Wouldn't it be quite a bit lighter than a BP, FE or 13B?
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I my years of swap research, I came up with this:
If you're gonna swap in something that doesn't belong in a Miata, then it better be an LS V8. Don't waste your time with a Ford 5.0 V8 from the 80's or early 90's.... and don't argue with me about the fact that I just said that, because you will make as much whp and tq and you could with a turbo on a 1.8. If you have to keep a 4 cylinder in a Miata, then it needs to say Honda on it. F20c, or a K20/24 engine. Don't even think about a rotary, or a SR20, or anything else. It's a waste of time. 2JZ? Here's a video about that: |
Gotta get ready for race wars.
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Originally Posted by thirdgen
(Post 1046992)
I my years of swap research, I came up with this:
If you're gonna swap in something that doesn't belong in a Miata, then it better be an LS V8. Don't waste your time with a Ford 5.0 V8 from the 80's or early 90's.... and don't argue with me about the fact that I just said that, because you will make as much whp and tq and you could with a turbo on a 1.8. If you have to keep a 4 cylinder in a Miata, then it needs to say Honda on it. F20c, or a K20/24 engine. Don't even think about a rotary, or a SR20, or anything else. It's a waste of time. 2JZ? Here's a video about that: |
I have my eye on doing an MZR swap. I want it to still have the soul of a Mazda.
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I agree about everything except the rotary.
A 13b swap would be excellent. Dann |
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