The new bangwagon car/engine swap

[On_Her_Face]

we all know how 240 with an sr is a big swap nowadays, well here is what i think is the next big swap for import tuners

http://www.racingjunk.com/post/10135...-Spitfire.html

[Blitanicle99]

Thats an RB20 Correct?

[MistaCee]

Wow that thing must be fast

[XLR8NMR2]

rb20 = trash

[BuBBa DRiFT]

it really is

heavier, same displacement as SR, less common parts. they are cheaper than SR for a reason.

[On_Her_Face]

yes the rb20 mayb be trash, but this little car is bad ****ing ass.

ans sounds better than a sr20 IMO

[BuBBa DRiFT]

yes the rb20 mayb be trash, but this little car is bad ****ing ass.

ans sounds better than a sr20 IMO

oh hell yes it does, but in terms of parts and pricing sr > rb

but yeah

i forgot to mention that the car is badass lol

[Blitanicle99]

RB20s are cheap these days. Hell Id run one for the cost.

[MistaCee]

Yea RB20's sound amazing. Could'nt you get more power out of and RB that an SR?

[XLR8NMR2]

Yea RB20's sound amazing. Could'nt you get more power out of and RB that an SR?

depending on the setup most times you will get more torque out of a rb but it also depends on the car/swap if the power is useable or not.

torque doesn't always win races.

[Leadfoot_mf]

we all know how 240 with an sr is a big swap nowadays, well here is what i think is the next big swap for import tuners

http://www.racingjunk.com/post/10135...-Spitfire.html

well then you would be wrong

[mocha latte cupcake]

my RB was NOT trash then again i had a few N1 piece on her

[The Ninja]

I dunno if an "opinion" can be wrong. Its somewhat subjective.

[coolcat]

SR20 240
B16 Civic
FTL.

[Elbow]

WOW bad ass car, luckily "tuner" kids wont like it lol.

And yeah, I would take RB > SR. But really, CA FTMFW BETTER THEN RB AND SR!

Owning an SR is as unique as having eyes.

[On_Her_Face]

well then you would be wrong

it was sarcasm

[On_Her_Face]

WOW bad ass car, luckily "tuner" kids wont like it lol.

And yeah, I would take RB > SR. But really, CA FTMFW BETTER THEN RB AND SR!

Owning an SR is as unique as having eyes.

what were you saying now?

[Elbow]

See, some people dont own them, like him

[Alan®]

thats pretty sick swap and everything must not have cost much considering what hes selling it for

[Leadfoot_mf]

it was sarcasm

lol

[Thighs]

i wish something sweet like that would replace 240s...

[wantboost]

WOW bad ass car, luckily "tuner" kids wont like it lol.

And yeah, I would take RB > SR. But really, CA FTMFW BETTER THEN RB AND SR!

Owning an SR is as unique as having eyes.

ROFL like having an rb in a 240 makes it different lol

i wish something sweet like that would replace 240s...

you and me both, i would trade mine right now.

[Thighs]

do it. trade it for a miata or something sweet.

i know SOMEONE would want that car...

[wantboost]

a miata with itb's and a cage....... yea i would do it in a heartbeat.

[Thighs]

a cage? just put in a hard dog. dude how much do you think you could get for ur car?

[Psycho]

Owning an SR is as unique as having eyes.

I like to cut the eyes out of pictures I take of people, and stand in front of a mirror looking through the eye holes, pretending to be them.

That's not weird is it?

[Thighs]

^^ only on sundays while wearing womens clothing.

[RUFFIAN]

I saw that for sale in modified trader. thats pretty bad-assed. I know Miles seems to love his 79 spitfire........ :idb:

[2turbo4u]

I think the new swap craze is the 2jzgte inside of SC300!

[santacruz77]

sr 240s ftl......

240s ftl

[Kaiser]

While I'd rather have an RB-anything powered car, I must be one of the few people on IA that ~likes~ SR swaps. Of course, it sounds sorta dumb to say it, but I liked SR swaps long before SR swaps were cool. I first saw a Silvia grey-marketed into the US by a friend of my dad's when we lived in Memphis on the Naval Air Station there. Fell in love with the way the S-13 Silvia looked and sounded, wanted one ever since. I'd rather have a real-deal, but I'll be honest, an SR-swapped 240 would be fine for me with a front end swap to match on a coupe.


To the point of the thread, and to answer a bit about the RB vs SR, 6>4 for fluid dynamics reasons. The RB20 also has a shorter stroke than the SR, but is not 86mm bore, which makes it smaller overall piston size than the SR. The best RB to SR comparison would be an "RB24" (See more below), which is 86 bore like the other RBs, and 70 stroke, just like the RB20. Add the extra cylinders, and of course the extra valves that go with it, and you have significantly increased flow. The RB20DET stock spat 210bhp at 6400, the SR20DET from the S15 was 245bhp at 6400. YMMV, but the S15's engine also came out about 6-7 years after the RB20 stopped getting put into engines. The RB20's contemporary SR20 produced about the same amount of brake horses.


RB24 isn't a manufactured RB engine, it's an RB25 block with an RB20 crank, essentially de-stroking and de-compressing the engine. There were a few made for Cefiro taxis that were exported to China, but you can replicate the same kind of engine. The de-stroked engine can rev higher with the right valvetrain, and would have a lower compression ratio for absurd boostage. RBs besides the 20 were much closer to square, and the SR engine is perfectly square at 86x86. The point is, it depends on how much boost you run through the engine, but an RB20 will typically produce less power but more torque thanks to the extra cylinders and flow. There's also just something to be said about Straight-6s. I'm a I-6 fanboy for life.

Edit: Oh, and the reason why I brought up the RB24 at all is because you could really impress people by pointing out you have a 6 cylinder 2.4l 240sx. It just wouldn't be worth the work of buying the parts and building it. I think the production one for the Cefs used a higher flowing head too, don't remember much about it.