Nihilanthic

Engine weight is not nearly as much of an issue as its made out to be. Marketing and propaganda dont necessarily matter in the real world. AGAIN (ive said this so many times), kukris iron block small block chevy swapped FC outhandled a STi and a Z06 in an autocross. ITS NOT A BIG DEAL!

Anyway, back on topic, why not go take it out and drag it or autocross it and let us know how it performs!

BTW, rpms dont matter (unless you have short gears and your trap speeds are higher than your redline in your 1:1 gear allows when you drag race ) POWER TO WEIGHT matters.

aussiesmg

iTrader: (1)

Any weight matters, your power to weight ratio is power divided by weight, if you weigh more you will have more weight to accelerate, turn and stop. Just because one car had a better driver or a better sorted suspension doesn't mean the weight doesn't matter, in fact if he had a lighter engine he would have been faster. This is a matter of simple physics.

Of course there are many other factors here including corner weighting the car, type of tires used, suspension quality, suspension set up, engine tuning, brakes.

But weight costs power.

OC_

Ok, for those of you who have asked questions about trans, computer and so on.
I’m using the oem s2000 computer, I have already had the engine running with it on a stand.
I'm also using the stock s2000 trans, which is coming through the stock shifter hole. This is going to be a huge improvement over the stock n/a rx-7 trans, that thing was a pile even at 60,000 miles.

Yes, this swap has already been done by a guy in Hawaii, I have actually talked with him vie AIM and we have exchanged ideas. The last I talked to him, I told him I wasn’t going to go though with the project, but as you can see, I decided to go ahead. I'll have to thank him for his support.

His swap is a lot different though, he didn’t cut the firewall like I did so the engine is more forward. This would have placed his engine on top of the k-member, so he had to make a new k-member and redesign the suspension; redesigning the suspension is a HUGE deal because he had to make all kinds of new parts and then theres the whole geometry aspect. I didn’t want to go that route because I don’t think I could have made something as good as Mazda’s design.

I wish I had a scale that I could use to weigh the 13b fully dressed with its trans, but I don’t! well… if I really wanted to find out, I guess I could take it to a truck scale and see what that says, but that’s a lot of work. As for the fate of my stock engine, its totally fine and runs great and had perfect compression when I tested it at 50,000 miles. I think I might just put it up for sale.

Hmm, I really don’t know if the engine is lighter then the stock engine, it could be that Its mounted farther back in the car then the stock location, thus shifting the weight off the front and causing the suspension to not compress to sock height. But the mounting position looks to be in about the same spot. I can tell you that the trans case has an obviously higher technology in the casting which I’m sure allowed them to use less metal and make it lighter. Also, I don’t have any air conditioning systems, dashboard, power steering system or much of anything else for that matter. I’ll make a custom dash later probably from fiberglass and carbon fiber with an s2000 gauge pod.

owen is fat

a friend of mine has let me drive his S2000 at a few autox's and on a few roadtrips, its one hell of a nice motor and trans, such a nice feel and response, they are wild beast in the upper rpm's!

I aplaud your project, too bad ya had to cut the firewall but if it let you keep the front crossmember in tact then more power to ya.

keep us up to date, I'm sure its gonna be wicked fun to drive!

BklynRX7

Its damn light compared to other motors. Me and a friend were able to haul my s5 long block half way up the block into the van and then one entire block after the trip(with short breaks of course) NO PROBLEM. Meanwhile it took 5 of us to lift a Honda B16 into the van and we needed a dolly to move that **** around. It was only an I4 at that. We needed a palet jack for a 325I engine(I6).

digitalsolo

iTrader: (2)

When did someone release a stock TTV6 with 405 hp?

OC_

heres some more pics, you can see how high the suspension is riding...

Tenacious

twincharge it, that'll add some weight up front! and you'll be like crazy fastz0r!

88IntegraLS

Props for taking on a cool project that no one else has done before! Keep us updated.

LT1-10AE

Thread was split to keep it on topic. Carry on... this time without the crap.

saltyslug

I call bs on 5 guys lifting the b16a engine. that is only a 1600cc inline engine. me and a friend just did his clutch and we both lifted the motor out. eat more spinach or its bs.

you should have put that engine in a sandrail and you would have really had a blast. 240hp in a rail is pretty nuts.

1RevvinFC3S

Cool *** conversion! After seeing that white one from Hawaii I kinda wondered if someone else on here would do it. Good luck. F20's can be made VERY powerful for not a whole lot of money (well, compared to alot of other things, LOL). Keep us updated. Oh, and how about some sound clips too! I love the way F20's sound.

jds22

hey guy that is going to be a cool swap.seen your running a C24,you dont what to turbo it.that is just going to make more problomes for you.call comtech for a supercharger,and give hondata a call for this swap.o ya a aluminum drive shaft is a must.i do honda swaps for aliving,thats how i keep my 7 out of the impound. good luck!

gerbraldy

I've heard so many stories of those s2k motors blowing up after taken past redline too many times. It would have been cheaper just to put a modded TII motor with 300hp in it.

OC_

So what percentage of s2000 motors do you think blow up when driven hard?

So anyway. lets compair and contrast for a second about this swap, Vs. a modded TII swap.

I would first need the TII engine.
unknown condition J-Spec from FC3s.org $800
Shipping for the engine 225
T-II trans from FC3S.org 350
T-II diff with worn out lsd (all T-II diffs are worn out) 200 approx
CPU stock - off ebay, coudent find an s5 200 approx
drive shaft -off of for sale board 100 approx
---------------
$1875 basic TII swap

Im sure theres things im forgetting for this swap, but i think this covers a lot of the expensive stuff. I think this price is a best case scenario, they say you should rebuild those j-specs, and engine rebuild kits arnt cheap. Plus im sure that trans isnt going to even near OEM crisp. I think it would take a lot of money just because these things are getting so old.
Now, you might say "these prices are high, i can get stuff cheaper" well, im not you and dont have 'your' connections. Also, anything rx-7 related is really rare in my area


Now, if its going to be a modded engine, its probably going to be ported and so on, i would need injectors, fmic and a standalone ecu to do it right. I dont want to mess around with the stock ecm with a piggyback.. Thats how all those kids blow up their T-II's, its a shame...

DFI system $1000
porting 450??
rebuild kit from atkins 900
fmic 1000
-----------
3350

grand total so far - $5225


This price does not even include tuning.
But when you say 'a modded T-II 300hp' how much do u think it would cost?
PLUS theres the hassel of finding all these parts, where i got mine all together.

Now for my swap

Engine, trans, and CPU with harness - $3500
Engine mouts. - materials my freind had laying around FREE!!
drive shaft - 200
exhaust TBA

total so far $3700

Thats what i have paid so far. Of course there is little nicknacks I havent ran into yet but all the big stuff is out of the way. I didnt have to ship this engine either, i went and got it myself.

if anyone else has anything to add since i didnt do a T-2 swap, please do!

I was talking with the guy from Hawaii who has already done this swap. Hes got his turbo'ed now...

snowball

i remember reading from an article where a F20 was put into a miata you have to be very carefull about the exaust Honda did a near perfect job and almost every other design will loss HP if put on.

BklynRX7

Its too big to quote but fi you look 2 threads up youll see the most dramatic, over exadurated and plain ignorant shopping list ever.

outside of the motor i know people running 300hp with just larger secondaries($150)
and a fcd($50)

To the poster:

You seem very excited about revving that engine to 9k, i give it 2 months before your using it to hold down tarps in your backyard... just tragic. I however can rev my rotary to 9k constantly and daily without worry.

I had no problem with this thread and this pretty uncommon idea till you started to act like what you were doin was better than what was there. Atleast v8 swaps make some real power.

OC_

to the hater above:
I specifically say in my post.
“'a modded T-II 300hp' how much do u think it would cost?”

Insted of calling me ignorant which solves nothing. How much would it cost to do this?
And you say it yourself that 'you know people', what exactly does that mean? Is that some sort of factual reference? and you give me 2 months? thats just funny.

If you would like to calculate a price of a full T-II swap for a N/A FC, please do!
But there is also another reason im doing this. I think its damn cool!

One of the problems with doing a T-II swap for me is; It doesn’t seem like I can get T-II parts in my area... Everything would have to be shipped in from some place and be of questionable integrality. I have never seen a T-II on the road in my area, let alone many rx-7's at all. Though, i have seen 2 non-running t-ii's in peoples garages. Both had blown engines, one just completed having a imported engine installed to only find out that the jdm engine came blown.

js3324

lovefab.com and fullrace(dont know their website)
Make the best quality turbo kits you have probably ever seen(for an S2K atleast) granted they are very expensive. Both would be willing to fabricate whatever you need because well, they are fab shops heh.

OC_

The thing is, I want to have OEM or near OEM reliability. I'm not concerned with turbo kits or anything like that at the moment. Let me get this running as is first!

Thats another thing. Running a stock T-II engine to 300hp. How long can you do that for? Yeah, it might be ok at the drag strip, but how about when I'm running a road course all day in the hottest weather? My freinds supra had a problem like that. He was running a ton of boost with the stock turbo which was fine on the street. But at the track, where everything was pushed so hard for so long, problems happend.

only $200 bucks for 300hp, huh. Hmm, you make it sound like I already have a T-II engine!

Aznplayer911

iTrader: (1)

Nice man, this past year i sold my Tii for an S2k. Although it was a slight change in speed, My S2k is quickly becoming fast, just costs a bit more.
Also, for everyone hating, OC_ makes a perfect point. I track my S2k about once a month. I rag on her all day and she give me no hassles. Unlike my other friends who constantly complain, like i used about reliability. Enjoy your 25mpg and honda reliability w/ the classic FC look.
Cheers,
Will

Fumanchu

Sweet choice my man. I have a similar project in the back of my head but with a Datsun 510.

The f20 is a good little motor. Get it running right and then when you have the cash, throw a little turbo on there. From the pictures, there seems to be a lot more room on the passenger side than an s2k chassis has. As long as you run 6-8psi, the stock motor can handle that fine. Good luck on your project and PM me if you have any questions.

1987_Gxl

could have just upgraded what was aleady there...
T II engines will last as long as you treat them good.... abuse anything and you'll break it.
friend's supra overheating? maybe he should look at upgrading his cooling system before he makes the stock turbo run harder than intended.

kinda neat with the project and all.... but overall i think it will just be more of a problem

'87 turbo II

iTrader: (1)

Ok everyone, stop telling him what he COULD'VE done, he's already got the engine in it and he's already cut the firewall, none of that's changing. So congradulate him or don't say anyhting. I think this is a killer swap on account of the weight is similar, power is up, gas mileage is up, cost is down, reliability is up, and it's a rare swap so you're even MORE exclusive than having a rotary engine in an Rx-7. I love rotary too don't get me wrong but guys, be honest, there are other good engines out there and this is one of htem that shares alot of similarity in size and weight. I say good job and go for it. That should be a pretty fast car an dI'd love to see pics when you're done.

RRTEC

iTrader: (13)

Neat... S2000 rock.... But I had a nice GTUs core I would have traded for a s5 w/60k.... Keep us updated.