Rotore_787

im planning on buying a wrecked Rx8 from a friend it jus has some minor body damage and a blown engine. but thats not my problem; since it has a blown engine obviously its gonna get swapped but i really am stuck because i cant figure out which one would do me better here are my two options 13b-re cosmo twin turbo or 3 rotor 20b???

Any help will be appreciated
Naldy

bowser

I'm also interested in this, but slightly different

13BREW vs 20BNA Bridgeport (or 3 rotor renesis NA setup if a kit is made soon)

which would have the better fuel ecconomy?

romycha1

If fuel economy is your worry, then you need to stick with a stock renny

bowser

fuel economy is not a major concern, as the car will be a daily driver and the cost of fuel then i'm interested to know which of the two motors would use more fuel

DMRH

My JC Cosmo with factory fitted 20B-REW averages 18lt/100km. city cycle

Drops to around 12lt/10km. Highway cruising

On average, a JC Cosmo with the 13B-REW option gives 15lt/100km city + 11lt/100km Highway.

If you are interested in 13B-REW power (logical choice) then get the FD RX-7 version rather than the JC Cosmo version as the FD engine is better suited to a higher revving application.

REgards

Outkast187

The 13b-re is a fairly nice fit, thats what I have in mine. It will take some engineering either way, neither drop it. I wouldnt keep the twin turbos, go with a single instead. You should be able to get a solid 350-450hp depending on boost, as long as you have the fuel system to supply it.

CyberPitz

We could always use more sexy 20b's around here

Rotore_787

fuel economy wont be a problem.

Im 17 and im studying mechanics in my school; an Rx8 with a 20b twin turbo seems to be a good idea since everyone will be doing honda civic's or crx's.

romycha1

17 huh, That's a lot of money to be invested in a swap for only being 17...

paulmasoner

iTrader: (1)

theres no reason for twins except bling. and having that bling will cost you in: parts cost, complication, and eventually maintenance

Rotore_787

not really i found a rx8 shell for $3200
a 20b with tranny in puerto rico is about $3600
and all the other things will round up to atleast $25k so 2 years of working and saving up got me up to $31675 i think that will be enough and correct me if im wrong

romycha1

Shoot, if you got it, then spend it. There are a couple 20b's floating around here, PM RGonza or angelJoelv

Rotore_787

will do and thanks for not flaming me like all those ricers at mazda forum

636

Ricer like me? lol. I prefer the 20b but change out to a single turbo if you want more power. Stock twin turbos arent reliable when you up the boost. Let me know if you do this that would be great. I was saving money for this swap also ,but **** happened and i basically lost most of it. So i gave up. What type of program are you going through for mechanic school? Wonder if its the same as the ones here in california.

Rotore_787

nah im talking about the group of ricers that claim to be running 490rhp on 14psi and a completely stock tranny (by stock i mean factory clutch and flywheel) and im in a vocational highschool but this will take me a while to get setup im still doin research since im going to have to use a different tranny and custom mounts.

Outkast187

Now that I see you are in Puerto Rico, the swap wont be an issue....its like a rotary mecca there.

636

I think you can use the stock tranny just reinforce it. Stock tranny should fit the 20b , if i remember correctly >_>. How much power are you aiming for? You would probably have to replace almost everything lol. I wouldn't spend 20k+ on a 20b swap unless i was aiming for high numbers , or else to me its not worth it. Oh yeah and i mean pump gas reliable power.

Rotore_787

i was in puerto rico i had to move to philly i hate it here

Rotore_787

yea thats what angel said but he also said that 2nd gear was the problem and he's gone through a few transmissions. i'll be aiming for atleast 400-500rwhp and it won't hurt to do some work you if it i don't mind replacing almost the whole drivetrain. Also you wouldn't spend 20k+ on a 20b swap but like they said it all depends on prefence you know i haven't seen one kick *** rotary in philly yet.

oh yea sense just incase the rx8 tranny blows i did abit of research for a plan and i was wondering if i can use a getrag 233 tranny?

pdxhak

iTrader: (2)

My condolences

Rotore_787

condolences???

oye papi no te entiendo.

Translation:
Whats that mean?

pdxhak

iTrader: (2)

Meaning I feel really sorry for you that you moved to Philly

Rotore_787

oh sorry im still learning english and thabks i feel bad for myself too.

I'M GETTING TIRED OF HONDA CIVICS AND VTEC COMING BY MY HOUSE

09Factor

Don't feel bad about the Honduhs and Vtec's. I have to put up 240 Silvia wannabe's and Evo's

Rotore_787

i could beat any of the those civics, s13s, s14s, and evos if i still had my 87 corolla...

cant wait till i get that rx8 down ima kill every honda in philly . idiot ricers cant even make a simple turn because there "Vtec" kicked in.....