41 replies to this topic

[Fury-S12]

this is bit off topic but does this mean if i was to get a fj s12 and wanted to put a sr or rb init that there would be a definant market for the fj ?

[FLY PSI]

There would be a market, but if you want an SR or RB S12 then why not buy one with a CA20 and use that as a base, as soon as you take the FJ out it would make the car worthless, as an RSX.

[Wal33d]

Hi all
about the gearbox for an FJ , i finished putting a GTST r32 RB20DET gearbox behind my FJ, and it fit really well but there is 2 ways
1 swap the bellhosing from the fj to the rb...
or
2 which i choosed to do, cz didn't want to rack the much "loved" fj box
i just drilled the top 2 holes in the rb box to get it to match and got it all in and u don't even
have to cut the taill shaft.

if you after dragin just put rb25 box the strongest boxes nissan made,

[Shinigami]

There would be a market, but if you want an SR or RB S12 then why not buy one with a CA20 and use that as a base, as soon as you take the FJ out it would make the car worthless, as an RSX.

I agree is you get a s12 rsx with an FJ keep it

John

[mats12]

Why not do something different like a 1JZ-GTE or 13BT. It really depends how much power you want. I've owned an SR20DET powered s13 and have to say I have no love for them IMHO. They were designed by accountants not engineers. Just my 2c.

[Pistonfreak]

I know of FJ20et, SR20det, 13bt, 1JZ all making 1000hp when worked off teh scale

It's all about what you want

[Pedro]

1JZ and rb conversions in S12's will throw the good handling of the S12 out the window.

13bt is a interesting thought, definitely would be a good conversion, but fuel costs is a bitch.

[Shinigami]

i love rotaries b4 even thinking about buying a gazelle i was planning on buying a FC3S rx7 with the series 5 taillights but fuel will just kill me
and i dont regretting buying te gazelle

John

[mats12]

Theres just something about the gazelle thats draws me. I've owned an S13, AE86 and R33 and found things I really hate about them, but not the S12.

[Pistonfreak]

Hi all
about the gearbox for an FJ , i finished putting a GTST r32 RB20DET gearbox behind my FJ, and it fit really well but there is 2 ways
1 swap the bellhosing from the fj to the rb...
or
2 which i choosed to do, cz didn't want to rack the much "loved" fj box
i just drilled the top 2 holes in the rb box to get it to match and got it all in and u don't even
have to cut the taill shaft.

if you after dragin just put rb25 box the strongest boxes nissan made,

I did think that is all you needed to make a RB20 box fit
But the bellhousings are different between a RB20 box and RB25 box
You have to mod the RB25 bell to fit up to a SR20 but the RB20 box needs no mods

Thanks, good info wall

Brian

[Wal33d]

I did think that is all you needed to make a RB20 box fit
But the bellhousings are different between a RB20 box and RB25 box
You have to mod the RB25 bell to fit up to a SR20 but the RB20 box needs no mods

Thanks, good info wall

Brian

that's is true the rb25 are different ( gata make sure if u r lookin for 1 , get the push type not the pulling 1, the later rb25 boxs and different too)
so i guess if u r using rb25 box u r better off gettin the lot in , that's wat i recommed anyhow,
i don't like breaking things in bits ..

[gerryb]

"Rb20 etc throw the good handling of the s12 out....."

Sorry can't agree re the RB20, don't know about the other one. Liam here had an RB20 in his s12 and it didn't really effect the handling negatively

[Wal33d]

"Rb20 etc throw the good handling of the s12 out....."

Sorry can't agree re the RB20, don't know about the other one. Liam here had an RB20 in his s12 and it didn't really effect the handling negatively

oh i was only talking about the rb20 gearbox
not the engine , once u go fj there is no turning back hehhe

but at the end of the day, it comes back to how u ganna drive it? drag, drift or just cruze


in my opinion fj is good for all

[gerryb]

Wasn't replying to you Wal, was replying to Pedro higher up in the thread.

Amen to that with the FJ, look what Ben D achieves with his

[Fantasy]

What? There are other 4cyl engines other than FJ20’s? LOL.

FJ all the way.

Pistonfreak, You earned two brownie points from me. Thanks for the plug.

[Pedro]

"Rb20 etc throw the good handling of the s12 out....."

Sorry can't agree re the RB20, don't know about the other one. Liam here had an RB20 in his s12 and it didn't really effect the handling negatively

Fair enough.

But I wouldnt think putting more weight in the front end is going to improve anything...

Its like putting a v8 in a datsun, yeah it might go fast, buts it not going to handle to well due to the uneven weight distribution, its going to be very front heavy --- understeer.

I like the example of pushing a shopping trolley around with 4 cases of beer in the front of it. its not going to take the corners of the isle's as well as if you had one case in the middle of the trolley.

[gerryb]

Yeah but the RB20 really isn't much heavier than an sr so its much the same really and the VG30's in the US would be a bit heavy I'd say. Its like the RB30 and ca20 R31's. They just beef up the sprimgs for the RB30 ones. Liam had coilovers in his with stiff springs and better brakes.

[Fantasy]

Yeah but the RB20 really isn't much heavier than an sr so its much the same really and the VG30's in the US would be a bit heavy I'd say. Its like the RB30 and ca20 R31's. They just beef up the sprimgs for the RB30 ones. Liam had coilovers in his with stiff springs and better brakes.

It is not so much the weight of the 6cyl. It is more where the weight is distributed with a strait 6cyl

And the RB20 is a fair bit heavier than the SR

[mats12]

From what i've heard the RB is ~65kg heavier than the SR (can anyone confirm this). However almost all that extra weight is foreward of the front wheels. I dont know how much of an effect this has though. I'd really like to drive a car before & after to see.

[Ozchuck]

Having frapped S13's with CA's, SR's and the RB20, I canhonestly say the slight difference in understeer is there, but its a matter of spring rates and adjusting driving style to get it back to normal again.

This is in the S13 chassis, but I imagine the basic principles are still the same.

Buying an RB halfcut for 2 grand or less gives you a good set of brakes as well, and leaves money for a front mount and turbo upgrade before you reach the cost of an SR20 halfcut...

And I've driven 200KW RB's with a giant turbo of doom, and thats probably the best drifter I've driven so far.

Given the RB's power:money ratio, it can be a good option, but if you're after the outright best, get the SR