Team Race Bread! 240 reasons to make a Sandwich Xtreme

I had a fast and reliable SR, but always felt a RB20 would be a "cool" alternative..

-Inline Six..
-Awesome internals ( not that the Sr is weak or anything)
-Cheap to buy ( albeit significantly more labor to get to work well in S Chassis install, also may need aftermarket crossmembers)
-An often overlooked and rarer swap ,which is kinda cool and appeal sto the purist in me..
-parts <are> harder to come by, but this very website has a couple of RB savvy parts sponsors.

You can, according to this theory, you could coax more torque out of a RB20 than a SR20 just because of the number of contact points the rods have on the crank.

Also, the RB20 weighs just over 100 lbs heavier than the SR20, and has about 10-15 more HP stock.

RB20DET Bore: 78mm Stroke: 69.7mm
Power: 220 HP @ 6400 RPM
Torque: 194 @ 4800 RPM
Compression: 8.5 to 1
Redline: 8000 RPM

SR20DET Bore: 86mm Stroke: 86mm
Power: 205 HP @ 6000 RPM
Torque: 203 @ 4000 RPM
Compression: 8.5 to 1
Redline: 7500 RPM

Modified by 2BN_S13 at 12:18 PM 6/15/2005

Modified by 2BN_S13 at 12:20 PM 6/15/2005

http://forums.nicoclub.com/zerothread?id=100856

http://forums.nicoclub.com/zerothread?id=113408

The sr's hit higher than that stock.

http://forums.nicoclub.com/zerothread?id=92710

http://forums.nicoclub.com/zerothread?id=86029

http://forums.nicoclub.com/zerothread?id=84185

That is what i have found so far. Some have stock numbers and some have just raised boost everything else stock.

I have never seen stock RB20 power so high. Your figures makes no sense. U just said the rb20 would make more torque and u show the sr20 making more torque do u have the info mixed up or something? Guys from the rb forums on stock boost gets just about 185HP out of their rb20 and guys with stock sr20's are getting out about 205... why is that with stock boosts?

Good arguements I concede your point.

Fred..

Thats because he forgot to add there are two variants of the RB20DET

One that came in the R31 that had less power (190PS) and one that came in the R32 (220PS). The R31 engine has some differences like intake manifold runner variances, and a set of red valve covers. The R32 engine has silver covers.

LOL.

The block doesn't rotate chief.

The SR does have less mass to move, but the crank has a larger stroke, making inertia greater to overcome in that regard.

I don't think you would see a large difference in how quickly the two rev. It's not as big as say... KA vs. SR.

The only reason why I would get an RB20 is...
1. They are cheap
2. They sound awesome

sorry forgot about that doesn't affect the friction of the parts

Definately.

I was thinking about that sound stuff too the other day. The VQ sounds freaking amazing, kinda high for a 6cyl, but still very much a 6cyl. The RB20 has to come across a lot like a Ferrari does - lots of small cylinders, so I bet it has an awesome note...

Now I want to hear one... where are our vid masters?

Now I read up on some Japanese sites (don't have the energy to pull them up) that there were more advantages of having an SR in the Skyline/Cefiro than an RB. The Skyline was mostly because of weight I believe.

But scince you want it in a 240, I guess you can pull off the extra weight of the RB. but like biglipzit said, he prefers the SR from experience.
well that's my input

Such blasphemy!!!

SR's are certainly easier to install, work on, and get parts for.
RB20's are less expensive to buy, but more expensive to maintain in the future.

We can argue all day over performance numbers. Can we agree that they are pretty close in terms of HP and TQ... at least close enough that neither has a clear advantage. I think they are pretty close at stock boost, and pretty close at top end potential (400-450ish). Honestly, I would guess that the RB20 is a little cheaper to get there with.

EVO8... how good/experienced a mechanic are you? If you are nervous about your abilility to work on the RB yourself, I would stay with an SR.
I probably would have been wise to go SR as well given my lack of experience. On the other hand, if you are confident and adventurous, the RB rocks! It's a great project.

What is your budget? I think the RB20 is about a grand less expensive than the SR20. That might help. The RB20 is a little more expensive to install than the SR20, but less expensive than an RB25.

I personally wanted to be different than the masses. I want to be a bit unique. I always hated Hootie and the Blowfish because they were overplayed and everybody else liked them. I don't like Honda because they are a dime a dozen, so I decided I like Nissan better. I decided I wanted a convertible because they are rare and I like the top down. I decided I wanted to get an RB over an SR because they are less common and a little less expensive.

What do you want?

Joshua 1:9 "Have I not commanded you? Be strong and courageous. Do not be terrified; do not be discouraged, for the LORD your God will be with you wherever you go."

i cant believe im hearing this. . .
that last statement is so gay you must be ****ing richard simmons in the *** while typing it.

Actually, there are three variants of the RB20DET. The one in the R31, 190ps, R32, 215ps, and the one used in the HCC33 Laurel, A31 Cefiro, 205ps. If you go with the RB engine, make sure you buy a skyline clip so you don't get the 205ps version. The only differences were slightly smaller cams. Everything else is identical.

Also, the thread was asking about Black top SR's...which put out 250ps in the S15. So, like I have said before...depends on what you want to do with the car..i.e. drifting or drag...and how deep your pockets are.

Quote, originally posted by PantherRacer »

Well in Skyline GTS-T's and Cefiros that came with the RB20DET you see many Japanese guys (You know you wanna be JDM tyte ) taking out the RB20 and swapping in an SR. It's lighter and more parts are available. etc etc see points referred to above. Now I read up on some Japanese sites (don't have the energy to pull them up) that there were more advantages of having an SR in the Skyline/Cefiro than an RB. The Skyline was mostly because of weight I believe. But scince you want it in a 240, I guess you can pull off the extra weight of the RB. but like biglipzit said, he prefers the SR from experience. well that's my input

The SR's are not that common in the R32's, but they are there, and they are extrememly common in the C33's and A31's. Mostly they are used to even out the center of weight distribution and for high speed wangan runs. Kinda like the Top Secret Supra a few years back. They used a highly modified 3SG...I think...and was able to hit 200 and change and keep it pretty well stable.

And yes, the RB sounds awesome under acceleration and boost, there is no question about that.

there are also 3 Sr black tops there is the S-13 for the 94-98 180sx which was 205HP
then there is the S-14 Knotch top which puts out 225HP
and then there is the S-15 knotch top which put out 250 hp
and the RB sound much cooler under boost
here is a Rb25
http://forums.nicoclub.com/zerothread?id=119374

http://nicoclub.com/addirectory.shtml

Quote, originally posted by ghetto »

sorry forgot about that doesn't affect the friction of the parts

Steel liners.

I bought an rb20 because it was $1000 less, more power stock, not hard to swap (at least nothing hard about it so far, never swapped an SR though), sounds way cooler, and not everyone and there uncle's gold fishes previos owner has an RB.

my 2 cents

......You've never heard of my s13? Its the 240 that made the Kessel run in less than 12 parsec's...

I think the SR has a small performance edge, but the fact of the matter is, its all about enjoying whatever you decide to put in your car. I could see myself enjoying a RB as much as my SR. Same goes with a CA or FJ or KA. For me, its about motoring around the track and to work in a sporty car, not obsessing about weather or not my car is different.

Haha, now how would I go about doing that? I figured you'd just need to own an RB, which I do.

Is there something I gotta do to make it official?

Classic.