i am seriously thinking about buying a 3 rotor i just need to know what i will need to do to put it in a 2 gen rx-7. I have a 93 GMC Jimmy An 87 rx-7 and a parts car 87 rx-7 im planning on selling all my cars and having the money to compleat the project. what kinda rx-7 should i buy 86-88 or 89-91??? turbo/non turbo GXL GTU GXL-SE???? i want one of those with a pefict body hand a horrible or no engine??? someone help me here

 

a lot of money and patience

 

well that dont really help
www.fc3s.org has 3 rotors for $4100 shipped to my house

 

have you checked those websites?

http://fc3s-pro.com/TECH/20B/20b.html
http://www.se-rx7.com/20b/

 

I rember someone saying its like 350ish Hours labor to do this swap..

 

wow so it really comes out to around 10 grand?? alot more than i thought it would be

 

probably more then that... and it'll take a year or 2. there are only a few FC's with 20Bs in the US that run. yet lots that are "in the proccess"

 

very fast and very time comsuming to install

 

man at first i thought it was mainly a bolt on kinda thing just a few upgrades but now it seems like putting a firrari engine in

 

Ferrari

Yeah, plan to spend at least $15k in getting it running right. and that's if you do most of the labor and fabrication yourself.

Jameson

 

damn it i thought i would have a 3 rotor oh well mabe some day i dont think selling my rx-7 and jimmy would be enough to do the job ill probly get around 7 grand for both the cars cuz rex-7's dont go for much(mines a GXL though mabe??)

 

Just get a TII and mod it with the rest of the money.

 

Well, the 20B will hook right up to an RX-7 transmission, but other than that, yes, it would be like putting a Ferrari engine in.

Anyway, to answer your question, it would be easiest to put the 20B in a TII because it will not clear an NA hood (oh how I tried, though, lol), and the TII drivetrain can handle the torque better. Obviously, the old engine will not matter, so yes, a horrible or no-engine TII would be cheaper. Plan on $10,000 for a very basic (400-500bhp) conversion and doing all the work yourself or with your friends who have engine lifts and appropriate welding and milling capabilities. A professional conversion is about $35,000. Add another $10,000-50,000 for a high-output single-turbo setup.

 

i saw a twin turbo 3 rotor for $3800 so why is single turbo so much??

 

1) The bulk of the 20B conversion cost is not the engine itself, but rather in making it work in the car.

2) Because you need to buy and install the turbo and its plumbing, custom turbo manifold, custom downpipe, larger exhaust, wastegate, BOV, larger/additional fuel injectors, high-output fuel pump(s), high-output fuel filter & regulator, larger fuel lines, intercooler and plumbing, larger competition radiator, high-torque clutch, mondo-expensive transmission, custom driveshaft, high-torque rear end, wide body kit, stiffer suspension, and wide rear tires. Things get expensive once you get over 550bhp, and a single-turbo 20B can take you over 1,000bhp.

FYI, the 20B street engine comes from the factory with twin turbos. It's actually a 20B-REW, and was installed in the JC Cosmo luxury car.

 

hey wouldnt if you spend about 10grand on a turboII wouldnt it have around 1000+ hp???

 

No, you would have about 400hp.

 

whhhaaat 10 grad would only get you 400 hp im sorry but thats pretty shitty

 

if you skimp out on tons of stuff, you can build a 400 rwhp TII for about $6k or so. Again, this is skimping on everything appearance wise, and also doing all the labor yourself. This is assuming you have a healthy, working engine already.

Jameson

 

not if you have NAWZZZZ

 

True, in that case you would need only about $6,000 for the initial setup, $2,000 for the engine rebuild the next week, $2,000 for the engine rebuild the week after that,...and so on.

 

cheaper then a 20b well for the first year anyways

 

Okay I don't understand how a 2 rotor you say 400 HP but adding %33.3 more displacemnet will get you %250 more power... um the number just dont add up.

 

the Scoot FD is putting 700 something to the ground. He didnt say that 400 was the limit on a 2 rotor engine.

1000 hp for a 20B is a helluva lot, it's no walk in the park.

Jameson

 

I don't think 1000 Hp is possible .. you show me a 1000HP 3 rotor motor and I will eat my own liver with a spoon.