Help fd3s and 20b conversion

[rotary rx7]

Hi all.i have juz bought a yr 1995
fd3s.need some help here.
1) does the original gearbox cum wit LSD?If nt what are the brand to use?
2) Is the 20b a driect conversion to fd3,do i
have to convert any mounting or bracket.
3) The 2ob can at least produce hw many bhp with the single tubro.
4) Hw much will it at least cost,the engine wit the install.
5) wat e max rpm can it go if e tuning is gd?

 

[phat7]

1) does the original gearbox cum wit LSD?If nt what are the brand to use?
Yes the stock FD comes with the standard Torque Sensing LSD. This should suffice unless you have a full time race car.

2) Is the 20b a driect conversion to fd3,do i have to convert any mounting or bracket.
It is not a direct bolt on. There is plenty of fabrication that is required and to the extent of pushing back transmission by 5-6 inches. If finance is not a problem i would reccomend getting a special sub-frame that will save you the hassle of trying to mess around with you stock engine mounts.

3) The 2ob can at least produce hw many bhp with the single tubro.
The sky is the limit. As long as you have the fuel modifications that can supply fuel you can hit most anything bar that turbo as well as porting and engine health is important.

4) Hw much will it at least cost,the engine wit the install.
Lets just say its not as simple as getting a halfcut and bolting it in. You will definitely need to rebuild the engine. Turbo as well as manifolds, b/off, w/gate/ I/c, Radiator (i suppose you'd be able to get away with stock,Aftermarket Ecu, Fuel pump as well as lines, Injectors. Then once done you'd want to make sure its tuned and does now blow due to insuffcient A/F.
There are many ways to doing things, you can do it right once or not do it at all. Rebuild- 5-8k, Ecu-5-7k,Turbo-4-5k, Halfcut-7k. Thats roughly how much you would need. Dont forget to have spare cash laying around in case of emergency.

5) wat e max rpm can it go if e tuning is gd?
this again is dependent on your engine mods (again, how much you're willing to spend)

Good luck and keep us posted.

 

[RERider]

I remember I read from somewhere that the 20B matches with FC's gearbox. But I just dont understand why a street car needs 20B? Are u buliding a race machine?
13B can produce far more hp when tuned properly. Dont forget high hp u r still need proper setup/tuning for suspension, vehicle balance and the responsiveness as well.

 

[phat7]

well said rerider. Power is something you want to transfer effeciently and effectively to the ground. At the same time you need a balanced car to make a difference on track as power doesn't naturally make you faster. Look at the R3 guys, We're talking 150rwhp (i was told) and they'd woop you behind and hand it to you on a plate if you dont know how to plant the power onto the ground. (joke) Set yourself a target which is achievable. Take your car onto the track and tune or change its shortcomings before going 20b. I would love to see someone here plug a 20b in, its been a dream to do so myself but i prefer to do it in stages. SOme guys are running 600rwhp bridgeported 20b's and mind you in NA form. That's truly a engineering marvel.

 

[Alchemis]

150 horses on the rear wheel....
that's exceptional good tuning.....

yeah i was smoked by the red R3 gen2...
can catch up la... their entering corner is superb.. exiting ... lack of power... :)
but we all have to brake like shit first already... they all slow exit... long time gone.... when we baru exit the corner :P

 

[NOS_7AGTE]

hahaha another 1 20B maniac will born soon. I've called Mun Lee few days ago. They've stock a 20B half cut in present. Selling price RM$9.5K any1 interested??? They want dispatch to Australia soon. Hurry catch up!!!!Gd luck guy

 

[marlinished]

Sorry, dumb qustion, what is 20B originally from(body). cc?

 

[zyfull]

mazda cosmos...2.0cc 3rotor engine...:)

 

[arsenalboi]

20b is from a eunos (jdm mazda arm) cosmo its a 3 rotor 2l total capacity engine. i also itchy to put.

 

[Alchemis]

for those who haven't put in your names in the official registry of RE owners... drop by there... give us a contact number... we'll contact you for possible events.

 

[SideWaysGrey]

yes, you will receive Happy Deepavali & Selamat Hari Raya messages...next will be Christmas greetings :) Thanks CB !

 

[Alchemis]

no worries about it... just to keep the circle of friends around.... hopefully we're connected due to same interest :) the rotary engine :)