engine swap thread
 

Toyota:
I4. 3SGTE
I6. Supra
V6. GR series
V8. twin turbo UZ
Subaru:
H4. Crawford Performance
H6. EZ30R?
Mazda:
rotary...lol
Nissan:
I6. RB26
V6. VQ**
Honda:
I4. Why? :iono:
V6.
Chevy:
V6. Camaro V6
V8. Camaro V8

Eventually somebody is going to swap another engine into the car. The ones that share the Aisin 6 speed transmission are prime candidates. Toyotas that use this transmission are top of the list. I'm talking about you, GR.:wub:

S2000 swap could be fun. Shares the same trans too if i'm not mistaking. :)

Considering the low deck height of the boxer engine and the way that the engine is situated so far back in the engine bay, I don't see too much else fitting in there, certainly not a 2JZ.

If anything, I'd think a STi swap into the 86 will be popular.

F20 or F22 swap sounds boring. How about a 20b, 4-rotor, or any LSx series engines?

I don't see an LSx fitting under that low hood honestly.

Maybe a boxer-6?

i imagine the Subaru flat 4 turbo swaps will be most common, but it won't surprise me to see nearly any engine swapped into it anymore. i don't think we'll see more radical swaps until a few years after its release.

-Mike

Rotary would fit (but why?) An LSx can be shoehorned into a Miata with some firewall modification, however, that's a pretty roomy bay to begin with; looking at how low the hood is and how far back the engine is being placed in the 86, it would probably require some fabrication. That would be cool though, and it'd be a good candidate since it's relatively short in height due to the lack of OHCs.

Good point , Bochet.
I still don't wanna upset the balance with a big heavy V8 in the front...
I'd rather just turbo the D-4S

BPU EJ257 should be plenty

First of all....Nobody has actualy seen the engine bay to make any accusations of what fits and what doesn't....So for now we are just assuming or dreaming. The LSx engines are all aluminum which means they are light for what they are.

Why? Cuz rotary are awesome :bellyroll:
I have seen in the pic that GC8 w Rotary engine w full AWD system working.

Just some ppl have money put waste. :)

Like Mouse said, LSx is all aluminum so it's light weight.. Google "LS1 in S2000" & you'll see some guy put LS1 in the S2k and it weight bout 2800 lbs.

I'd imagine alot of us 4A-GE junkies trying to shove 20valve Silver/blacktops into this thing pretty quickly after its released. I know I will, eventually (after its paid off, at the very soonest). It just seems to be the proper motor for this thing to me.


And anyone who tries to shove a pushrod american V-8 into this thing needs to be hanged and their car given back to Toyota. Don't like my words? I'm not taking 'em back. My statement in my avatar is there for a reason.

Wanna do a v8? toyota makes a great v8 for the job: the 3UZ-FE

Sorry but toyota V8's are are nowhere near the performance of an LS series engine.

Then you should tell that to Carroll Shelby who took an AC Ace(European car) and shoved a American V8 in it. Maybe it's about being a purist for you...but for me it's all about the performance no matter the compromise(with the exception of removing the A/C). So if putting the engine from a C5 Z06(LS6) increases the performance with very little compromise, then to me it's worth it.

I ain't swapping shit. I'll work with the mill Toyota puts in the car (unless, of course, they pull 80's Nissan and gives us a truck motors while the Japanese car gets the winning mill).

I'm interested to know when an American V8 would increase performance without weighing the transplant car down. And also, when it would be a better decision than a different set-up. This isn't a poke, I really want to know.

Google small block chevy or LS series engines, and then compare their weights to that of your favorite import engines. They are so comparable it's not even funny.

LS engines = inexpensive, easy torque, and a gutteral V8 sound

right, but i don't think a guttural V8 sound has any business coming from a car that looks like that. :)

-Mike

I'll stick with what's in it and try to squeeze as much HP out of it that's humanly possible. :burnrubber:

Well, that's a matter of opinion, of course. But you asked for quantifiable reasons for using this method, and the reasons are its relative weight, as well as it's ability to make easy power, with lots of torque.

nahh last thing i want to do is disturb the balance of my car so ill stick with the original motor, if its NA ill just turbo or supercharge it.

From the numbers I have seen online it seems that an LSx engine would weigh at least 50 lbs more than a 2-ish liter flat 4. Depending on which LSx engine it might be more than 100lbs.

I love the LS series engines and especially their noise is intoxicating.
In this car i just couldn't justify throwing 100lbs up front for ~400hp. 50 lbs maybe.
I'd rather get about 275-300 from a snailed D-4s.

If anyone finds better comparison weight numbers on both motors, please post them.
I don't trust my google'd sources blindly...

When I go to Sebring there are three cars I look forward to listening to. When the corvette was in GT1 that thing was just godly insane(you could be 100 feet from the track and feel your insides shake), the aston martin v10, and rotaries. I love it.

The miata is notoriously known as a gay car....so imagine a V8 in it.

Everyone's going under the premise that you could just slap a motor like the LS in there without any harm done to the actual frame of the car.

I call BS, you'd have to cut here, hammer there, and probably, definitely, slice into the firewall.

Not saying it would upset the entire rigidity of the chassis, but its not going to help.

Like I said earlier in this thread...Nobody has actually seen the engine compartment nor does anybody have any dimensions or measurements.

Don't get me wrong I will more than likely go NA and hope that someone would develop ITRB's. I'm simply just giving engine swap dreams and fallacies.

Good points. I'm just talking about the appealing aspects of the motor itself.

I'm still not swapping shit!

Ahh, you bring up a good point.

I'm not a boxer engine nut and as such I really don't know much about them. Are there any current aftermarket companies that make ITB's for boxer engines?

IDK let me look around for a bit

This is what I've found so far....http://www.tokyoseven.com/T7/product...=425&language=

Are ITB's really that beneficial in the 86? From what I understand from S2K owners on s2ki, you actually lose power with them. Now, that is in a s2000 so I can't speculate for an 86 but it surprised me when alot of the track guys that ran them, said they lost power.

In a NA miata the average gain is about 30hp with a piggyback. But with ITRBs it's not about power but about response.

^

And sound! Oh GOD the sound!

Ah gotcha, but that's a pretty penny to pay for throttle response. I guess I just don't understand the whole concept since I don't actively track my s2000. :iono:

When you're tuning an NA, nothing comes cheap.

The only reason I'd give a thought to putting a turbo on the FT: Budget.

Well that part(which is all I found) is from Tomei which is a super JDM brand. That's why it's so expensive.

The kits made for miatas are around 2000.00 with the piggyback. I would guess about 2500 to 3000 would be resonable.

keep in mind, though, that we're likely going to be dealing with throttle-by-wire, instead of a normal throttle cable. that's going to up the cost significantly on any ITB kit.

-Mike

Not really cause Cosworth developed a ITRB kit for the 2.3 and 2.0 MZR(Mazda) engines. When they use to have the prices on the website it was 2000.00 for the Individual Roller Throttle Bodies alone.

It's in this car...http://www.awrracing.com/allstar.html

I had ITBs on my miata and there is no way, even with a full standalone you could make 30 whp.

However, ITBs on a subie sound awesome: http://www.youtube.com/watch?v=ctyBOEk3L9Q

Couple that with a disco potato and stick a fork in me i'm done :p

Yeah, that's what alot of S owners have said. It's almost cheaper to boost it than go NA. That makes no sense to me. More power for less money.

Ask anyone who's boosted a factory NA car, though, and they will tell you that boost does not come without its own set of problems. Especially in the realm of engine management tuning. Then there's the problem of the engine being too capable for the chassis, requiring even further (re: $$$) upgrades.

yeah but there's also a whole forum dedicated to NA tuning on s2k. talk to the guys there and you'll understand why it's worth the $ for some.

Not gonna jump the gun on this one, for all we know it could be a very responsive and somewhat powerful engine. That and I probably will just throw all the money into wheels and suspension/handling. :word: