Hey there guys,



Just wondering, how much does a 20B go for in the states? They go for about $4,500AUD over here and that's for a cheap one... Cheers

theres a great deal of them for sale on partstrader...

the average seems to be 3-3500US...

ive seen dissasembled ones for 2k, they seem to average bettween 3-4k and a new one is 7.5usd



mike

Nippon Motors sells them for $2500 american. Last year they sold them for $2200 american. It's hard to find anything that cheap, and near impossible to find something cheaper.



$2500-$4500 is the range.

$3000-$3500 is the most common prices.

and the range price for the conversion?

well for the fc you need, motor mounts ($199.95!), giant radiator ($400), intercooler ($900), clutch & flywheel ($750-2000). if you want a big single turbo that needs to be added in, as well as an engine rebuild/porting if you choose. you also need an ecu ($750-8000), and misc ic pipes, fans wiring etc.



mike

:yum: TOTAL LIKE $10,000 . if i had the money i will do it. maybe when i finish college

and on top of that now u gotta pay someone for the emissions like $70 a year l ol

i guess thats given that you have the know how of doing it yourself........ but i still thought it would cost way more than that

Try more like $30-40K to have someone else do it professionally...and correctly...the first time. You're best bet is to go and buy all your parts you will need for the project, ecu, wiring, piping, etc, and when you have it all...then start it otherwise you will go nuts and have delays on things you never anticipated. At least if you have all your parts, you're only waiting on labor and the "normal" problems that occur with a project such as this. Plus you're assuming all your stock parts are in decent shape and don't need to be replaced and/or upgraded at the same time and...that they will actually hold up to the abuse going to happen when you get the motor running. We're not doing these conversions for gas mileage and putting them in economy cars. They're meant to be pounded on hard so everything better be able to withstand it https://www.nopistons.com/forums/pub...#>/biggrin.png

$30-40K? Is converting to a 20B worth it.. or could that money still be spent on other things and still come close to achieving the same results?

Is it worth it? That's a very subjective question. Is a sports car necessary? No. You'll have to answer that question on your own if it is or isn't.



Now keep in mind that the $30-40K quote is for doing the entire car, suspension, stand-alone computer installation and cost of computer, brakes, motor, wheels, exhaust, turbo, fuel system, IC, custom interior w/gauges etc, and anything else I'm forgetting. The cost of the motor alone vs. a high-powered 13B is going to be nearly similar...it's the rest of the project that is expensive. But...the same cost for any high-powered car you build safely, engineer everything to be servicible, and professionally done. This is not unique. Look at what it costs a Supra, Vette, 300ZX, etc, etc, owner to build their car into a streetable race car...



If you flinch at that number...then don't consider this conversion or any other high performance car for that matter that you want to seriously modify. None of this stuff is cheap and if it is, "you get what you pay for". Or you're a mechanic with a full supply of tools and can do all the work yourself. What did all those tools cost you then? The cost is everywhere, either direct or indirect.



However - a 20B is a unique motor that most people have never heard of and/or seen, including rotary people. If you have one, you are definitely a little nuttier than the rest https://www.nopistons.com/forums/pub...IR#>/smile.png Myself included of course. Plan on setting the car aside for at least a year or two minimum unless you pay someone to do it in one great wad of cash but that's not realistic for most of us. Pay as you go, buy what you can, and upgrade along the way.



There is another thread on the cost effectiveness of this project vs. a V8 so I won't reitterate that discussion but for an EFI V8 making the same power as the 20B it's cheaper to go with a rotary, both in the initial cost and rebuild costs as well.

I don't plan on going to a 20B anytime soon.. but, I was just wondering.

for $40,000 i'd stick with a 2 rotor and just get it to the same horse power using 10,000.......hehehe

With a 20B and all the mods you would prob. be producing more power than just a 13B with all the mods..

Don't people read ALL the post? https://www.nopistons.com/forums/pub...IR#>/wacko.png



$40K is for transforming the car into a semi-complete racing machine. It obvioulsy doesn't take that much (but it could if you wanted) to make a high HP 13 or 20B. If you do the work yourself, the 20B ported with single turbo, custom manifold, wastegate, and EMS is going to be about $10-15K depending upon the level of internal work, parts used, computer system used, etc.



And a 20B will always make more power than a 13B with the same/similar hardware. Compare a V6 vs. V8...same thing, more displacement.

do u have 3 turbos? ive been convincing myself to do either a 20b AE86 or a 2nd gen 20b. no matter which way i go about it, its gonna be a pain in the checking account. but to have a sleeper like this, there is no comparison. if i was able to save up enough money, id do the swap, no 2nd thoughts

Just one T-76...don't know why you'd need more than that for a street driven weekend application with street gas. However, every application is different as it all depends upon how you want to build the car. Some people may like to drive a twin or tri turbo bridge port 20B on the street with C116 for fuel...not me. A goal of 800RWHP is more than enough for me thank you. I'll be lucky and spending nothing but more time/money on just trying to actually get traction. Why people go with cars that can produce over 1000 for the street is beyond me as it's nearly useless and not even fun to drive.



If you have the money/time, go for it. Building a car is one of the most selfish things you can do as it is entirely for your benefit and pleasure...so do exactly what you want, take your time and do it right, and be happy with the learning experience you get from building it. Don't worry about other peoples' opinions on subjective things...but that's also why it's much better overall if you pay a professional to build you a car that will not fail and can help with the proper selection of hardware, they try to be more objective as their reputation is driving around and your happiness is key to their success.

porting a 20b never thought of that before

even if you can get the same hp, you'll never even come close on the tork that puppy will put out.. https://www.nopistons.com/forums/pub...R#>/tongue.png and the 20B will be putting down the 13B's 7,500 peak hp at around 5,000 rpm to boot and for a lot longer power band.

I plan to start my 20b conversion within this year. I have a couple more things to pay off and buy another car. Then its 20b time. But i should be starting in about 4 months.

I can get the engines in OK condition lots of KMs for around $1200 plus shipping so very close to $2000. just they are HARD to find for this price and they are even rare here in Japan too..

if you could get me one for 2k shipped, i would fall in love with you!

yeah 2k shipped is a great deal!



mike

Im going to rebuild it stronger and port it, so the cheaper i can get the engine the better!

the engine was 40% of my swap cost (3800 out of 10k), its by far the biggest part



mike

Anyone know if it's possible to get a 20b without a turbo? I'd really like to see a naturally aspirated one... I was finally thinking of getting an RX-7, but I want to keep in NA. It's just a personal preference.

they only came stock with the twin turbos. you can pull'em off and throw them in the trash though



mike

Seems a shame, but I guess I'll do it. Which brings up a question: Is there any difference in what you need for installation if you're only going to have an NA 20b instead of the previously posted items for installing to 20bTT (as shown in the quote):

Oh, and one more thing: Without the turbos, what would I need to do to pass emissions?

I was looking in the parts trader and theres one there for cheap because it needs a rebuild.Jump on that for the the price.I think the asking price was 1400.

you need to have the acv and airpump hooked up. and maybe 2 main cats (the stock cosmo uses 3)



mike

Nice, thanks! Will I still need the giant radiator and intercooler of I'm going to make it NA?

just the radiator



mike

Thanks, you've been a lot of help!

Okay, I'm back with another question: What would I need to do to modify the ECU (or buy a new one) for the 20b, seeing as I'm removing the turbos?

the stock ecu is a huge mess to get to work, its much easier (and better) to run and aftermarket ecu.



mike

I plan on using a TEC 3...

ive been debating between the e11 and tec 3 for mine. I'll probably go with an e11 but i got a while before i need to worry about it got a lot of other things to get done first.

Why would one want to go N/A with the 20b?