You could use a Renesis to get those numbers, or if you're not comfortable with that a 13B-REW and still have reliability. Just throwing it out there because it would be a lot cheaper.

 

wow this thread is turning into quite the info shack stop place.......idk

 

wait so the 20b will only do 350-400?? i thought it was this miracle worker.... couldn't u just spend haldf the money u used to buy the engine and get a turbo and whatever and get around that with the stock engine?

i'm confused please send info lol

 

does the 20b that can do 350-400hp come in the cosmo? or which cars did it originally come in?

 

20b na can make about 250hp. cosmo 20b with stock twins was offically rated at 276hp and 296 tq. it put out a good deal more than that as japanese cars were limited to 276hp. it's actual power output was close to 320hp and 330 tq. if you put the fd exhaust sleeves in it to unrestrict the exhaust and the power and give it a mild port you can easily have well into 400 hp.

 

the na 20b that made 400+hp was a race engine with a periphrial port. it is not a daily drive engine it idled at ~3000 rpm...

 

You could just buy this and be done with it...

Alamo Rotary 3 Rotor Conversion - http://www.alamorotary.com/parts.htm

USED 3 ROTOR 20B ENGINE CORE
REBUILD 20B SHORT BLOCK
CNC MACHINE ROTORS (3)
MATCH THROTTLE BODY
CUSTOM MANIFOLD & ADAPTORS
ENGINE MANAGEMENT
FUEL INJECTORS
HIGH VOLUME FUEL PUMP
FUEL PRESSURE REGULATOR
10MM SPARK PLUG WIRES
CUSTOM PULLEYS & BELTS
CUSTOM INTERCOOLER
HEAVY DUTY HIGH PERFORMANCE CLUTCH KIT
BILLET ALUMINUM FLYWHEEL
HEAVY DUTY ALUMINUM RADIATOR
MISC COOLING/BOOST HOSES & CLAMPS
OIL COOLER, MISC OIL LINES & FITTINGS
MISC OIL, FILTERS & GEAR LUBE
CUSTOM SUBFRAME
BATTERY DRY CELL
BATTERY INSTALLATION KIT
A/C RETROFIT PARTS

PARTS SUBTOTAL: $27010.00
LABOR 150 HOURS @ $60/HR 9000.00

PROJECT TOTAL: $36010.00 (Plus Tax)

 

ha nice find red, not included shipping cost too for a foreign engine

 

Be a friend of rgonza and Do it the swap with him..........................
for $12,000

"priceless"

Manuel

 

True that ... ... For people that need all the info on the all mighty 20b .. ..
Click here...

 

Hi,stickmantijuana

The Mpg's on my car is around 17 to 19 Mpg on highway at cruise speed not at full blass and 13 or lower on the city. The reason for lower Mpg 1. i'did have installled a custon 3.90 rear end no high RPM needed to reach a cruise speed. a 14.7 Afr at vac. and 13.0 AFR at 1 to 5 psi of boost and 12.5 AFR at 6 to 12 psig boost. and 10.5 over 16 psig of boost. Regarding about cornering the cars handle like your stock car there no powerslide or understeer. and to make 400 rwhp you can do it with only 7 to 8 pounds of boost with a T76 Q turbine shaft and 1.32 housing and with 91 octane pump gas with a great reability and streetabilty with a borla exhaust system no body can notice the diference between the sound of stock renesis and the 20b. with the full throtle there's an another story the mpg's can lower up to 12 mpgs but the HP is above 400+++ RWHP ....
Regards
Rgonza

 

Wowww ,Send it to Puerto Rico!!!!!

 

I was hoping you could come to Texas and swap out my engine... heh.

 

$36K+ ?!?!?!?!

Someone needs to put down the crack pipe

 

I want to put a 20b in my 8, or find an old FC without a motor to stick a 20b in it, then not only will it be unique, but also a pontiac slayer....

 

I'am interested in putting a 20b in my Rx8, but worried about finding parts when needed. Does anyone know a good source.. Has anyone info on Kiwi-RE.com, They seem to have a large selection of 3-rotor parts, I assume they are 20b parts. Can anyone confirm if that's true and if they are a good source... I hear the 20b fits in the Rx8 better than the Rx7, is that a fact or just hearsay...

Any help would be appreciated, thanks

 

Hi,Greddyturbo1

Here in Puerto Rico You can find a 20B for 3500.00 or less In JR Motor Connection In Vega Baja, Puerto Rico and the another source is PICA MOTOR In Bayamon, Puerto Rico. About the fitment yes is more easy put a 20b in the rx8 than the rx7 there 's much room to fitment.

Regards

 

13b cosmo??

where could i find info on this motor, and if you happen to know, how much cheaper is it to put in an 8?

 

You can find these motors for about 1200-1700 $$$ On eBay or any engine importer. It will take about 6-7k $$ to drop in your rx8 .. Turbo kit ,computer, fuel etc... 400-450hp easy. If you do the work yourself ..
Hope that helps ..

 

didn;t you say you had to cut the frame to get the 3rotor in there? something about not being able to go back to the 13b when you cut the crossmember?

 

Thanks Rgonza, Can you PM me or post these guys phone numbers, I'll buy tomorrow if they have good 20b's... Let me know... Thanks...

 

Tokio Motors
787-780-8849


Manuel

 

Manuel, I tried both numbers, they said they don't have any 20b's.. Thanks anyways..
Anyone else out there with any info for a 20b, let me know

 

I know very well the owner of Tokio Motor he is one of my customers,
we talk on weekly basic, so I'm goin to ask him for a 20B.
He buy all type of engines in Japan and once he have plenty of
engines he delivered them to PR in vanloads.
On a month he is goin to receive a vanload that contain a 13B cosmo engine
that I'm goin to buy for one of our friends..............

But I think that try to find one in the US (I think that you live in US)
It would be shipper, because here it would cost $3,500 to $3,800
plus shipping, that I estimated in near $500 more.
Probably you can find one in the US for less than $4,300

Manuel

 

Greddyturbo1,


I send you a PM with a phone number from a guy that have a 3 rotor for sale.

Manuel