gearing up for rb20 swap - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

chmercer · 06-13-2003, 01:38 AM

before you flame, i searched, oh man did i search.
I have been looking on every forum i know of and it seems there is a lot of information for this swap for the s13 but not so much for the s14? here is what i have gathered so far, please tell me what is right and what is wrong.

custom mounts are required, but the r32 crossmember will bolt up with no trouble.

the r32 driveshaft bolts up to the KA diff. and the stock LSD will also work fine.

the hood needs to have some of the skeleton removed to fit.

The rb32 radiator will fit with no trouble.

can anyone confirm any of this and tell me what is right and wrong out of it? also please mention if there is anything else that would need to be custom fabbed that i didnt mention / know about?

also, havent been able to find out anything on if the shifter will line up with the hole correctly? i know it does for s13 but i dont know how different the measurments are between the chassises to tell if it would also line up with the s14.

last but not least

does anyone have access to an english rb20 manual? or wiring diagrams? or anything related to the wiring? was able to find out how to do it for s13, but once again couldnt find anything for s14.

Thanks everyone!

please dont tell me to search or i will shoot myself in the face

wpayne · 06-13-2003, 06:40 AM

I know you can use the Cefiro/Laurel engine mounts for the S13 but I have no idea about the S14, sorry if that doesn't help, hehe.

chmercer · 06-13-2003, 10:20 PM

anyone else have any more info? thanks

PARAD0X · 06-13-2003, 11:11 PM

if you can do a s14 ka into an s13 with no problems. and a redtop sr into a s14, then why can't everything be the same for the rb20 into the s14 as well as the s13. that makes sense to me

TrustSupra · 06-15-2003, 12:24 PM

whats the purpose of doing an RB20 and not just an SR20?

dk · 06-17-2003, 07:00 AM

there's more to performance than displacement.

a two-liter six will spool a turbo faster than a two-liter four- three exhaust pulses per revolution instead of two-

there's probably more to it than that, and i am not an engineer, but it seems pretty telling that the RB20DET used a T3 for its entire lifespan in the R31 and R32, while a T25 or T28 has always been "enough" for the SR20...

Muzzy · 06-17-2003, 07:37 AM

good point DK...never really thougth about that

06-13-2003, 01:38 AM	#1
chmercer BANNED Join Date: Jun 2003 Location: texas! Age: 39 Posts: 3,288 Trader Rating: (0) Feedback Score: 0 reviews	gearing up for rb20 swap before you flame, i searched, oh man did i search. I have been looking on every forum i know of and it seems there is a lot of information for this swap for the s13 but not so much for the s14? here is what i have gathered so far, please tell me what is right and what is wrong. custom mounts are required, but the r32 crossmember will bolt up with no trouble. the r32 driveshaft bolts up to the KA diff. and the stock LSD will also work fine. the hood needs to have some of the skeleton removed to fit. The rb32 radiator will fit with no trouble. can anyone confirm any of this and tell me what is right and wrong out of it? also please mention if there is anything else that would need to be custom fabbed that i didnt mention / know about? also, havent been able to find out anything on if the shifter will line up with the hole correctly? i know it does for s13 but i dont know how different the measurments are between the chassises to tell if it would also line up with the s14. last but not least does anyone have access to an english rb20 manual? or wiring diagrams? or anything related to the wiring? was able to find out how to do it for s13, but once again couldnt find anything for s14. Thanks everyone! please dont tell me to search or i will shoot myself in the face

06-13-2003, 06:40 AM	#2
wpayne Zilvia Junkie Join Date: Aug 2002 Location: Okinawa, Japan + Azusa, CA Posts: 563 Trader Rating: (0) Feedback Score: 0 reviews	I know you can use the Cefiro/Laurel engine mounts for the S13 but I have no idea about the S14, sorry if that doesn't help, hehe. __________________ Too many people use cars as an extension of their PENIS and they make me sick. A car is to get you from point A to point B or for motorsports. Not revving around town at stop lights. Check out my mods!: 50,000watt super amp and JDM lights!! Yeah right... S13 Silvia K's I got for free (I'm in japan now)!! Woot woot! '99 25GT-T Skyline (I don't want to list all the parts) http://welcome.to/skylinegtr '92 240sx HB

06-17-2003, 07:00 AM	#6
dk Join Date: Mar 2003 Location: san jose, ca Age: 46 Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	there's more to performance than displacement. a two-liter six will spool a turbo faster than a two-liter four- three exhaust pulses per revolution instead of two- there's probably more to it than that, and i am not an engineer, but it seems pretty telling that the RB20DET used a T3 for its entire lifespan in the R31 and R32, while a T25 or T28 has always been "enough" for the SR20... __________________ --- 1991 240sx coupe

06-17-2003, 07:37 AM	#7
Muzzy Zilvia FREAK! Join Date: Jan 2003 Location: TX Posts: 1,555 Trader Rating: (0) Feedback Score: 0 reviews	good point DK...never really thougth about that __________________ lemme have a dollar

06-13-2003, 10:20 PM	#3
chmercer BANNED Join Date: Jun 2003 Location: texas! Age: 39 Posts: 3,288 Trader Rating: (0) Feedback Score: 0 reviews	anyone else have any more info? thanks

06-13-2003, 11:11 PM	#4
PARAD0X Zilvia Junkie Join Date: Aug 2002 Location: San Antonio, TX Age: 39 Posts: 498 Trader Rating: (0) Feedback Score: 0 reviews	if you can do a s14 ka into an s13 with no problems. and a redtop sr into a s14, then why can't everything be the same for the rb20 into the s14 as well as the s13. that makes sense to me

06-15-2003, 12:24 PM	#5
TrustSupra Leaky Injector Join Date: Apr 2003 Location: - Posts: 84 Trader Rating: (0) Feedback Score: 0 reviews	whats the purpose of doing an RB20 and not just an SR20?