satm83

ok what do you guys think rb20det or sr20det? which is easier. i got a 89 s13 hatch. and if i was to go with the rb what problems would i run into?

clubredsilvia

The RB is cheaper, 1200-1500. SR rings in at about 1800-2200. However, the money you save on the motorset, you have to spend on custom motor/tranny mounts and a driveshaft. it's also harder to wire. The SR is the easiest swap out there, and ends up being cheaper cuz of the crap you need to buy for the rb. The RB also has a few more horsepower and torque than the SR, but the SR has a TON more support by aftermarket companies.

-This could be the hardest decision of your life.

SR20-DET
Type: 1998cc EFI DOHC 16 valve 4cyl turbo
Power: 205hp @ 6000rpm (180SX), 220hp @ 6000rpm (Silvia), 230hp @ 6400rpm (Pulsar GTi-R)
Torque: 201ft-lbs @ 4000rpm (180SX), 201ft-lbs @ 4800rpm (Silvia), 209ft-lbs @ 4800rpm (Pulsar GTi-R)
Gearboxes: RWD 5-Speed and 4-Speed Auto (1993-on Silvia and 180SX) 4WD east-west 5-Speed (GTi-R)
Source: Silvia K's and 180SX after 1993, 1991-92 Pulsar GTi-R 4WD


RB20-DET
Type: 1998cc EFI DOHC 24 valve 6cyl turbo
Power: 215hp @ 6400rpm (auto 205hp @ 6400rpm)
Torque: 193ft-lbs @ 3200rpm (auto 195ft-lbs @ 3200rpm)
Gearboxes: RWD 5-speed and 4-speed auto
Source: 1989-1992 Skyline GTS and Cefiro Sedan

a_ahmed

That's not really true, the rb20det, has less torque (strange I know despite being a six cyl).

It has a crappier torque curve too.

RB25DET that's another story of course and not to mention the RB26DETT...

I've wanted the rb20det as well... but i don't know anymore...

frosti108

where can u find these motors for those prices?? rb20 for 1200? count me in

Durdan

iTrader: (1)

i just sold a full RB20 swap for 1200. thats what they go for. bc theyre junk.

tehott240

rb20 ftl get an rb25 or sr you will be happier in the end.

silviaks2nr

iTrader: (1)

rb20 is more of a direct swap than rb25/6. with the rb20 you can just use an r32 xmember and the stock rb mounts. use the rb tranny and the s13 ds bolts right up. If i considered a motor swap i wold go with an rb, i don't like how sr's feel or sound.

satm83

thanks for all the help everyone, well i read this one post on another site and this guy in japan had a rb and he said that his friend drove a sr20 silvia. the rb had like 300hp i think and the sr had like 250 and the guy with the rb said that the sr slowly beat him! so he said that the sr is better cuz its lighter than the rb with tq. he must know what hes talking about if he has the rb. plus i looked on ebay for things for both the rb and the sr and i found like 6 more pages for the sr. and not crappy parts at that. parts are around the same price for both but the sr had way more parts to pick from. i asked a friend if ebay was a good place for parts and he said he has never had a problem, just look at there feedback rating and how many people. so if there are other people wondering what i did on this subject this info should help.again thanks guys.

Biggamehit

iTrader: (2)

this link will answer general questions

http://www.club240.com/forums/showthread.php?t=38496

just doing this to kill the endless debates. what it comes down to is your goals and wallet