Collected info for a RB20DET into S13

Post by **rbsileighty** » Wed Aug 10, 2005 7:08 am

roe_wedge wrote:For the RB20 you have to HAMMER in the turbo to make it fit... man that scares me and im about to do the swap! ahhh! Was that just for your car or everyones?

No no no... I had to use a hammer because the turbo was used and the turbine housing was stuck and would not clock (turn) to fit on the driver's side of the motor.

Post by **crosdp_s13** » Wed Aug 10, 2005 8:53 pm

do u know if the wiring is the same as in a silvia s13 that has a ca18det in it??? as we dnt hav 240sx in new zealand.

Post by **DriftingisLame** » Sat Aug 13, 2005 11:05 am

Can anyone give me some help on my wiring? I've run into a problem that I cant seem to figure out. My car was originally an automatic, and the tranny sensor plugs are different. I am using the KA lower harness BTW.

If anyone knows what I'm talking about, that can possibly help out, please shoot me an IM my SN is MaxdaMilli0n (AIM)....pretty please.

Post by **rbsileighty** » Thu Jul 27, 2006 10:48 am

Updated pinout for RB20:

1 Ign signal (power transistor) Cyl #1 2 Ign signal (power transistor) Cyl #5 3 Ign signal (power transistor) Cyl #3 6 Sub electrical fan relay (engine temp switch)7 Tacometeter speed signal9 AC relay (AC cut signal) 10 Ground (ign signal system)11 Ign signal (power transistor) Cyl #6 12 Ign signal (power transistor) Cyl #213 Ign signal (power transistor) Cyl #416 ECCS relay 19 Power steering oil pressure switch 20 Ground (ignition signal system) 21(RX) Receive (control unit data reception) 22 (TX) Transmit (data sent from control unit) 23 Detonation sensor 1 (cyl 1-3) 24 Detonation sensor 2 (cyl 4-6)25 Wastegate valve control solenoid valve 26 Air flow meter ground 27 Air flow meter intake air quantity signal28 Engine temp sensor 29 Exhaust temp sensor30 Sensor ground32 Monitor and check lamp (red)34 Air flow meter ground 35 Air flow meter inatek air quantity signal 36 Intak air temp sensor 38 Throttle opening output 41 Crank angle sensor (120degree signal) 42 Crank angle sensor (1 degree signal) 43 Ignition switch START signal 44 Neutral switch 45 (IGN) Ignition switch (IGN) 46 AC switch47 (CHK) Check (diagnosis activation) 48 Throttle sensor power supply supply 49 Control unit power supply 50 Ground (control unit) 51 Crank angle sensor (120 degree signal) 52 Crank angle sensor (1 degree signal) 53 Vehicle speed sensor 54 Throttle valve switch (idle connection point) 55 Exhaust gas sensor (rear) 56 Throttle sensor output signal 57 Throttle valve switch power supply 58 Battery power supply 59 Control unit power supply 60 Ground (control unit) 101 Injector #1 102 - 110 Injector #5 103 Injector #3 104 Fuel pump terminal voltage control output105 Injector #2 106 Fuel pump terminal voltage control output107 Injector ground 115 - 108 Injector ground 116 Injector ground 109 Injector power supply (counter electromotive reflex circuit) 112 Injector 6 114 Injector 4

Post by **rbsileighty** » Wed Aug 16, 2006 1:07 pm

Post by **thundering02** » Fri Oct 06, 2006 7:51 pm

Saw the bit about requireing the r32 crossmember is there a good source for these?

350 for top hats mount kit seems a bit high to me.

Post by **maroon240** » Sat Oct 07, 2006 7:03 am

Didnt check if it was stickied yet but if not it should but i saw 32 xmembers on ebay like 3days ago for like 30 dollar but this is the question ive been wondering and all ways gettin a differnt answer. The mounts don't line up with the stock ones do they you got to get x member or custom mounts thats what i thought but this guy i know was tellin me that he actually did a swap wit his friend and said the stock one works but I think he was b'sing ....... STICKY THIS !!!! make it easyer for me to find later when i do mine yeaaaaaaaaaaaaaaaaaaaa haha

Post by **maroon240** » Sat Oct 07, 2006 7:16 am

Oh there wouldnt happen to be one of these for a ka would ther and im missin the three pipes that go under neath the throtle body and theres like that plactic box that leads off of the air box and is on the wheel well dont know what its called but i cant find where the rest of it goes to cuz therse no hoses that it can plug in to after i pluged it in to the thing below the it ...and there is the hose that goes from the airbox to the valve cover that all i can think of at the moment but if I could get some help wit this would be great thanks ROCK ON DUDES haha

Post by **a_ahmed** » Fri Nov 10, 2006 7:18 pm

sticky this + updates?

r33 crossmember + rb20det = ?

Post by **thundering02** » Mon Nov 20, 2006 7:56 am

Wanting to verify... the ka24e ecu is still being used? Just with the new pin-out splicing from the RB20(5/6)?

Post by **Sil240** » Mon Nov 20, 2006 10:09 am

WHAT?????I know you didn't seriously asked that did you???Think about it, you want a 4cyl computer with a Distributor to control a 6cyl with DIS?????

The answer is no, you must use the RB20 ECU and rewire the harness to work.

Please try using the SEARCH button.

Post by **maroon240** » Mon Nov 20, 2006 10:36 am

thundering02 wrote:Wanting to verify... the ka24e ecu is still being used? Just with the new pin-out splicing from the RB20(5/6)?

Don't be dumb seriously.....funking noobsss plz tell me that you didn't do that all ready.

Post by **kdkjrf** » Sat Jan 06, 2007 9:16 am

RB20DET Belt part numbersI was wondering if you guys had the parts numbers for the RB20 instead of the 26 =\ my p/s is fritzing out on me, and I was wondering if anyone had the #'s for the rb20 thanks !!!

Post by **hab89** » Mon Jan 08, 2007 6:44 am

I have just purchased my RB20DET motor.. and i NEED TO GET A R32 crossmember... I have been searching for them for days but still cant find anything... if anybody can help it would be greatly appreciated... thankss

Post by **hab89** » Tue Jan 09, 2007 5:41 am

Also.. Does anybody know where i can buy a clutch fopr the RB20 motor and for a good price?

Post by **FASTRB** » Sat Dec 08, 2007 7:44 am

here's my swap page, maybe some info here that might be usefull

http://www.cardomain.com/ride/630659/4

Post by **Biggamehit** » Tue Jan 08, 2008 7:27 pm

good stuff.. very simple and to the point.. i am a Ka-t guy but ill be getting another 240 and dropping a rb20 in it when i get back from iraq.. time for something sorta new lol

Post by **brandonDavid** » Thu Feb 21, 2008 8:31 am

Biggamehit wrote:good stuff.. very simple and to the point.. i am a Ka-t guy but ill be getting another 240 and dropping a rb20 in it when i get back from iraq.. time for something sorta new lol

damn, as sad as this sounds i remember you from 240 forums on myspace, had a nasty little ka-t.

Post by **TenjoTenge** » Fri Feb 22, 2008 9:03 am

tenjotenge wrote:me again ...

wires ... i connectet ....... the fuel pump relay (black pink wire)... the ecu memory... the ign relay... the ign powerand few other wires (carl H. guide) (ecept the black wire with yellow stripe/kannt find it ... got the ca harness)

i tha car i only connectet the orange wire to pin 43 of the rb20det ecu (ign start) for what reason is pin 45 ign???? ?

i checked ...... fuel pump is workin... ecu is workin (fuel pump runs at start)... starter runns

spark plugs ... there is no spark while holding the spark against the engine -.-"!!!!!!!

jeah .. there is no spark so tha engine doesnt start ... where could the problem be? ...

the engine shoult be ok, the power transistor also ... i think its the wiring inside the car ... but i dont get it ... do i have to connect all the grounds of the ecu (pin 10,20,50,60,30) ?

pls help! ..

best regards,Chris

could you help me .... could anyone tell wich of the wires inside tha car ar eneccessary to connect to run the engine?

Post by **brandonDavid** » Wed Feb 27, 2008 11:33 am

bump cause it still needs to get stickied.

Post by **mello88** » Fri May 23, 2008 11:43 am

Useful post! I'm surprised this isn't stickied?!

Here's my contribution, RB20 Ecu wiring harness pinout with wire colors:

I may update it later to include the pin functions, but that can be found elsewere already..

Post by **S13 240SX** » Fri May 23, 2008 1:03 pm

yeah mello88 you should update it man be sweet.. I remmeber having that picture but then lost it and then you re-sent me it.

you should for real update it be sweet.. i also think since that's a/t all the fucntions are the same but i think some coloring in wires are different, i cant remember which some of them were but i noticed it while looking on that and on my m manual one.

Post by **yotik** » Fri Jul 25, 2008 2:02 pm

this thread is sick but......

Im not finding any info on nicoclub about how to swap RB20det into s13 zenki sohc??? Only the RB25det and wiring stuff. Which is very helpful!!!

But I need the RB20det swap info. The questions i have are:

Some folks said I need to cut the firewall. Do i absolutely need to cut the firewall for tranny to clear rb crossmember?

Will my only option be a custom driveshaft with the rb tranny?

And do I need a custom downpipe for the turbo to connect to a bolt on exhaust system? (greddy, hks etc.)

Does anyone know if there is a thread that will clear this up for me?

I already ordered the motor i just want to see what i just got myself into
Modified by yotik at 5:59 PM 7/25/2008

Post by **placham** » Tue Jul 29, 2008 9:53 am

No, rb20 fit like a glove, trans is almost identical to ka.

Here is list to your answers, u should SEARCH first, all the info that you would need is all on this site, but here u go anyway 1. RB20 Engine and trans fits2. Driveshaft fits Rb20 from KA ( I used a KA 5spd driveshaft from non ABS 240)3. Stock Downpipe and turbo elbow clears in S13 (S14 IDNK)4. U will need R32 xmember or custom mounts.

Post by **BoostFab** » Tue Jul 29, 2008 10:43 am

yotik wrote: Im not finding any info on nicoclub about how to swap RB20det into s13 zenki sohc??? Only the RB25det and wiring stuff. Which is very helpful!!!

But I need the RB20det swap info. The questions i have are:

look at the stickies, you spend the whole week worth of reading

yotik wrote:Some folks said I need to cut the firewall. Do i absolutely need to cut the firewall for tranny to clear rb crossmember?

that's your problem, listening to the people that never done a rb swap. hear-say is your enemy.

1) go slap these people that told you so.2) no you don't need to cut the firewall, the rb xmember is direct bolt on.[/quote]

yotik wrote:Will my only option be a custom driveshaft with the rb tranny?

you can use the rb20det driveshaft or the 240sx 5-speed driveshaft.

yotik wrote:And do I need a custom downpipe for the turbo to connect to a bolt on exhaust system? (greddy, hks etc.)

as with any swap, even SR, or turbo ka, you need a downpipe made for that purpose.

yotik wrote:Does anyone know if there is a thread that will clear this up for me?

again read the sticky.

yotik wrote:I already ordered the motor i just want to see what i just got myself into

all the information you needed are on this forum, just read the stickies that pertains to the rb20 and s13.

Post by **yotik** » Wed Jul 30, 2008 5:26 pm

BoostFab wrote:look at the stickies, you spend the whole week worth of reading

that's your problem, listening to the people that never done a rb swap. hear-say is your enemy.

1) go slap these people that told you so.2) no you don't need to cut the firewall, the rb xmember is direct bolt on.

you can use the rb20det driveshaft or the 240sx 5-speed driveshaft.

Oh and lemme not for get to say thanks bro

as with any swap, even SR, or turbo ka, you need a downpipe made for that purpose.

again read the sticky.

all the information you needed are on this forum, just read the stickies that pertains to the rb20 and s13.

[/QUOTE]

Thanks yeah ive been reading up. I just talked to some guys with rbs in and most of my worries are gone. let the fund raiser begin!!!
Modified by yotik at 9:02 PM 7/30/2008

Post by **the_garynator** » Thu Oct 23, 2008 6:07 pm

How about this one? I made this last year when I was doing all of my wiring. Should be fairly complete. It's for a manual rb20 ecu.

Let me know if you want the excel version of it...I'm too lazy right now to find somewhere to upload it to, for now just email me (my address is in my profile) and I'll get it to you.

Post by **JDM671** » Sun Aug 23, 2009 5:43 pm

My rb idles high at 3k. And I also found out that my ecu is not giving signal to the maf. I opened the ecu and it looks fine. Nothing is burned out. No marks of whats so ever. Should I change my ecu? or Could I some how wire something to make it get a signal? lmk getting frustrated. Car cant rev pass 4k and when it is warmed up the idle drops up and down.

Post by **yotik** » Mon Aug 24, 2009 3:22 am

that sounds more like a vac leak. i thought i had everything tight but i was using a pvc hose for my breather. I changed it to a good hose yet it still ran like crap. So then i noticed i had ONE vac line loose on the back of the manifold and it still ran like garbage. make sure absolutely everything is snug.

Post by **lexrob** » Sun Sep 13, 2009 9:41 pm

This thread is really getting somewhere and helped me out immensly. I did run into some questions maybe im the only one. Can someone make a diagram in detail of the eccs and ign. relay's wiring for an s14.

Pin (rb 43,45) confused the sh## out of me. Also, just out of curiosity what are pins (rb 116,108,107) inj. grounds?? that are hot when the ecu is off??

Collected info for a RB20DET into S13

Re: (roe_wedge)

Re: (Andrew85cm)

Re: (rbsileighty)

Re: (thundering02)

Re: (maroon240)

Re: (maroon240)

Re: (a_ahmed)

Re: (thundering02)

Re: Collected info for a RB20DET into S13 (rbsileighty)

Re: Collected info for a RB20DET into S13 (kdkjrf)

Re: Collected info for a RB20DET into S13 (hab89)

Re: Collected info for a RB20DET into S13

Re: Collected info for a RB20DET into S13 (FASTRB)

Re: Collected info for a RB20DET into S13 (Biggamehit)

Re: (thundering02)

Re: Collected info for a RB20DET into S13 (rbsileighty)

Re: (a_ahmed)

Re: (mello88)

Re:

Re: Re: (yotik)

Re: Re: (yotik)

Re: Re: (BoostFab)

Re: (mello88)

Re: (JDM671)

Re: (yotik)

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