so what do you guys think abotu a 20b going into a 1st gen i am thinking about doing it your ideas would be helpful

 

could be cool, especially if done right.

There's an Aussie with a custom 13B that he turned into a 3 rotor using some custom and some 20B parts - that thing looks amazing.

 

but do you think that the power would be to much for that little car do you think it will be drive able

 

hell yeah!!!!!!!!!!!!
Danger this car will leave skid marks in your under wear

jr

 

do you think that it will be drive able on street

 

sure

 

Why wouldn't it be driveable?

 

Talk to DirectFreak, he's doing a 20B swap

 

He is? I thought it was a 13B. I retract my previous statement of my car being able to beat his.

 

He's dropping a 20 from a Cosmo into his GSL-SE - or so I understand.

 

I hope you have a lot of money and time on your hands to do this. You're going to need it!!!

 

I really don't see the point of a 20B swap into a first gen. unless it's for a drag or show car. It's obviously going to add a lot of weight and it's by no means a simple or inexpensive project. Better off going the turbo 13B route like everyone else. I suppose you can't argue with the novelty factor though...

 

its been done before, theres a thread in the 20b section with pics. it would be cool, but a 13b turbo swap would be a lot more "drivable". feel free to pm me if you have any 20b/cosmo questions

mike
20b fc

 

@Manntis Directfreak is doing a Cosmo 13b-RE swap and everything but the kitchen sink but its NOT a 20b..

@unbreakable How much money you got? Im at about 7.5k on mine and its a 13b-RE comso. Good luck and hope you have a lot of money saved up its gonna be a long hard road

Heres a picture of the monstrosity as it sits, see attachment

 

I stand corrected.

 

so ow much wieght we looking at hereis this motor going to add. well origanly i was looking at a 13B TT going in but i found a 20B single turbo with everything for 4000 wich said it was pushing around 700 plus hp and i was thinking that well if i get a stock 13B TT witch is 260 and it would run me 2 grand for that well if i dumb 2 more g's into it well i still will not get 700 hp so i decided to go to the 20B but how much money am i looking at for the install like how much will it cost if its alot i will go back to the 13B TT

 

I would say A LOT...

probably like 10K or more

we're talking new ignition, engine mounts, if it's turbo, and intercooler, new rear end (no way the stock rear end will take the abuse of 700+ HP), new custom drive shaft, new tranny, etc, etc, etc....


Jeff

 

The stock 20b only pushes out around 300. A 700+ hp motor would be heavily modified and if going for only $4000 may have some major problems coming up.

I agree with the estimates you would need to budget some $10-12K for installation. It would end up as a straight line drag car ,so you should also budget also for yoir tow car and trailer.

 

if it was turboed, like he said, that would push out quite a few more ponies, but I haven't heard of the 20B ever being turboed?

 

The 20B only ever came out in turbo form... twin turbo actually. It's out of the JC Cosmo.

 

really?

the ones I've seen were n/a? crazy.. but cool....

Jeff

 

What do you mean by "with everything".

The cost of installing the three rotor will depend on how much work you do yourself and how good you are at fabricating.

To fit the engine you would most likely need a custom cross-member, engine mounts and possibly sump. The radiator and oil cooler will need to be moved forward to make way for the engine and you can forget about using the stock items as they won't provide sufficient cooling. You will also need to upgrade the rest of the driveline to cope with the extra torque of the 20B. And that's just the basics... depending on what comes with the engine you'll also need an aftermarket ECU, and all the required fuel and ignition system components. Plus all the miscellaneous things that are involved in a project like this.

And I'd be very sceptical of anyone "claiming" 700hp without some sort of proof. It's definately possible but would obviously require extensive modifcations and tuning.

 

I figure there are always retards in GTOs and Fairlanes that have outrageous hp numbers...like 800 or 14567hp so I figure, putting a 20b in my car is no different than jamming a huge engine into a domestic. Except that its the fact that its still rotary, still mazda, and it still doesnt increase weight much...relocate battery, do a little guttin' and voila!

More backfires, and more of that rotary scream. I love it.

 

Well i guess i will stick with the 13B TT then stick that in there thanks for the help guys

 

There is no such thing as a 13b TT. Its a 13b-REW (thats a 3rd gen Rx-7 motor)

The 13b is of course 1308cc, the B is the series of 13b's, and the RE is rotary engine, and W stands for Twin (dont know how they got W but thats the desigantion of letters)

3rd gen motors are nice, but Id get a Cosmo 13b, they are cheaper and after you chunk the worthless twin turbos and go single they yield more horsepower due to the bigger better intake manifold.