rb25 powered 240 project.

Discuss the RB20, RB25 and RB26 series engines.
spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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hey, i've been looking around on nico for several months and have only posted like 1 time. i've seen a lot of people post up their projects, now its time to post mine.several months ago i picked up a 92 240 for $850. the car ran fine, it just had a hard start to it. that didn't bother me too much as i was planning on doing an rb25 swap around spring time. well just recently i bent 2 rods in my KA. i don't want to put any money into the KA, so i'm doing the swap now. i still have yet to order the engine and trans...i'll probably be doing that next week.

i plan on drifting it while still daily driving it. i might drag race it once in a while, but my main focus is drifting and dd.

here's what i have already ordered:

Syko Performance MountsR33 crossmemberAluminum DriveshaftGreddy Timing BeltIdler PulleyTensioner PulleyN1 Oil PumpN1 Water PumpNismo ThermostatMegan Racing DownpipeSAMCO Coolant Hose KitKOYO Aluminum RadiatorCircuit Sports TestpipeFull rb25 gasket set

What i still need to buy:

Intercooler and pipingFlex-a-Lite 220 Low-Profile Dual FanClutch (thinking about the ACT heavy duty street/strip clutch)A’PEXi GT Spec Catback ExhaustAPEXi S-AFC NeoAPEXi Digital AVC Type-R Boost Controllerall the accessory belts

with the intercooler, i'm think about going with megan racing. i've thought about one where the hot and cold pipes are on the driver side so there is less piping and then i wouldn't HAVE to relocate the battery. any opinions on that? also i'm thinking about going with the ACT clutch, what do you guys think? i believe i covered everything i've ordered and am going to order. is there anything that i might be missing that i should probably get?

thanks a lotTim


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ANVIL
Posts: 1133
Joined: Sun Apr 08, 2007 11:36 am
Car: RB25DET S13.5
Location: Alaska

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looks like you got most of it covered. if they had that i/c kit when i was doing mine i would have gotten it. less piping and less clutter in the engine bay.

dont forget you will need a better fuel pump and a fuel pressure regulator. most people use walbro 255 and nismo fpr. if you have the extra cash id opt for a stand alone and ditch the neo.

HPF Chrisk
Posts: 111
Joined: Tue Apr 17, 2007 10:57 am
Car: 240sx
Contact:

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I would go with a different down pipe then the megan one, nothing against quality but i have one on my rb swap withthe syko mounts and i drag mine on everything and my car is not that low, the megan down pipe is the lowest point on the car is why it gets drug on everything.

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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do they actually have a i/c kit with that intercooler? i've just seen the core, i wasn't too sure if there was an rb25 240 i/c kit for it. yeah thats something i forgot to include is the pump and regulator. i thought about getting a stand alone, but right now i just don't have the money. so i figured i might go with the neo until i can afford a stand alone. any other ideas of what i could get that might be better than a neo, but still maintaining that price range?

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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oohhh wish i would have known that before i ordered it! well i guess i might use it for the time being til i can buy a different one.

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ANVIL
Posts: 1133
Joined: Sun Apr 08, 2007 11:36 am
Car: RB25DET S13.5
Location: Alaska

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rb-performance.net has that same side i/c kit. theres another one too that ive found but i forgot where i saw it. also ive seen a few on zilvia recently if you are on there.

as far as the neo, if your on a budget its good from what ive seen. just have someone experienced mess with it

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RB_Seth
Posts: 152
Joined: Sun Jan 07, 2007 10:39 am
Car: 92 240sx RB25
91 240sx LT1
95 240sx 280k mile DD

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seems like you have a pretty good list going so far, i'm from around the area so if you need any help lemme know! ...and i may be selling my rb25 soon, and i know a few different people that can get good deals on motors

the_garynator
Posts: 214
Joined: Sat Jul 16, 2005 3:24 pm
Car: 2015 370z Sport
93 RB26 S13 Coupe
96 SBC Hardbody
Contact:

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If you don't want to spend the money on a standalone, I'd recommend an emanage blue (:ducks: ). Yeah it's technically a glorified safc, but what safc has wideband input, can datalog said w/b with all the other parameters, and can do ignition. The great part is that if you find one used, you can probably pick it up cheaper than a safc.

I'm completely happy with mine, I do plan on doing standalone this winter, but when running reasonably close to stock, it's a good option as well as super cheap.

You got any pictures of your car in it's current state?

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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ANVIL wrote:rb-performance.net has that same side i/c kit. theres another one too that ive found but i forgot where i saw it. also ive seen a few on zilvia recently if you are on there.

as far as the neo, if your on a budget its good from what ive seen. just have someone experienced mess with it
thanks a lot! that intercooler kit is exactly what i was looking for!
RB_Seth wrote:seems like you have a pretty good list going so far, i'm from around the area so if you need any help lemme know! ...and i may be selling my rb25 soon, and i know a few different people that can get good deals on motors
i would definitely like and appreciate your help on this!! why are you gonna be selling your rb? and i'm looking to possibly buy the motor next week. i've looked at a couple places so far....neotechimports, enginedepot, and jdmonline...those 3 looked the best to me...i just haven't narrowed it down yet. would you be able to help me out to get a good deal on one?
the_garynator wrote:If you don't want to spend the money on a standalone, I'd recommend an emanage blue (:ducks: ). Yeah it's technically a glorified safc, but what safc has wideband input, can datalog said w/b with all the other parameters, and can do ignition. The great part is that if you find one used, you can probably pick it up cheaper than a safc.

I'm completely happy with mine, I do plan on doing standalone this winter, but when running reasonably close to stock, it's a good option as well as super cheap.

You got any pictures of your car in it's current state?
i'll definitely check out the emanage blue. it sounds pretty good for a good price. i do have some pictures of it when it was running, and i'll get those up as soon as i can. i just don't have any pictures of it with the KA pulled out of it yet.

johnny butt
Posts: 690
Joined: Tue Nov 13, 2007 8:19 am
Car: 1993 240sx Convertible

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spikee306 wrote:
What i still need to buy:

Intercooler and piping

Tim
Hey, Spec clutches are good for the price. Just keep in mind you are going to need one for a NA Z32, it should make parts a bit cheaper because they can't attach that "R33!!!1!@" mark-up to it.

Stay away from the NEO Engine, it is much more headache than it's worth, and you might as well go RB26DETT if you are going that route.

Also, I have a same-side intercooler kit + Piping for sale right now. It is currently on my Rb25 so if you needed pics (fitment, etc), let me know. I will be removing it next week. It is the same kit pictured here: http://www.rb-performance.net/....aspx

Just painted black (with radiator paint.) Here is a thread with details, and one picture. zerothread?id=378590

If you need more pictures (of piping, fitment, etc,) let me know.

If interested let me know, it's in great shape and would save you quite a bit of money compared to buying it new from that site.




spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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johnny butt wrote:
Hey, Spec clutches are good for the price. Just keep in mind you are going to need one for a NA Z32, it should make parts a bit cheaper because they can't attach that "R33!!!1!@" mark-up to it.

Stay away from the NEO Engine, it is much more headache than it's worth, and you might as well go RB26DETT if you are going that route.

Also, I have a same-side intercooler kit + Piping for sale right now. It is currently on my Rb25 so if you needed pics (fitment, etc), let me know. I will be removing it next week. It is the same kit pictured here: http://www.rb-performance.net/....aspx

Just painted black (with radiator paint.) Here is a thread with details, and one picture. zerothread?id=378590

If you need more pictures (of piping, fitment, etc,) let me know.

If interested let me know, it's in great shape and would save you quite a bit of money compared to buying it new from that site.


are you saying get a clutch for the n/a z32 rather than one for the rb25? and i have been looking at the spec clutches, i'm just not sure of which clutch to go with as of now.

yeah i planned on going with the R33 and not the NEO. i've heard too much headache stories about the NEO.

i am DEFINITELY interested in your intercooler kit. what are you're opinions on it? if you could send me some pictures that would be great. you could either post them on here or email them to me if youd [email protected]. how much are you looking to sell it for? also what size piping is it? and is there a location for a BOV? i couldn't tell from either the picture on the rb-performance site or your picture.

thank you!

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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the_garynator wrote:If you don't want to spend the money on a standalone, I'd recommend an emanage blue (:ducks: ). Yeah it's technically a glorified safc, but what safc has wideband input, can datalog said w/b with all the other parameters, and can do ignition. The great part is that if you find one used, you can probably pick it up cheaper than a safc.

I'm completely happy with mine, I do plan on doing standalone this winter, but when running reasonably close to stock, it's a good option as well as super cheap.

You got any pictures of your car in it's current state?
sorry to go off topic...but where in WI are you? i'm from milwaukee and i'm just out in PA for school.

johnny butt
Posts: 690
Joined: Tue Nov 13, 2007 8:19 am
Car: 1993 240sx Convertible

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spikee306 wrote:
are you saying get a clutch for the n/a z32 rather than one for the rb25? and i have been looking at the spec clutches, i'm just not sure of which clutch to go with as of now.

yeah i planned on going with the R33 and not the NEO. i've heard too much headache stories about the NEO.

i am DEFINITELY interested in your intercooler kit. what are you're opinions on it? if you could send me some pictures that would be great. you could either post them on here or email them to me if youd [email protected]. how much are you looking to sell it for? also what size piping is it? and is there a location for a BOV? i couldn't tell from either the picture on the rb-performance site or your picture.

thank you!
I will get you better pictures.For shipping purposes the piping was sectioned off so I have it held together with hose clamps and couplers. I needed a 90* elbow to move a pipe to the side slightly for my Apexi intake filter. If I were you I would take the piping set up and have it aluminum-welded together unless you don't mind couplers.

I will get you good pictures of everything when I get out of class.

Overall, I like it, it's very responsive and has worked well for the 30-50+ miles I have had it for. No problems, not to mention it can hold quite a bit of air because of its size.

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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johnny butt wrote:
I will get you better pictures.For shipping purposes the piping was sectioned off so I have it held together with hose clamps and couplers. I needed a 90* elbow to move a pipe to the side slightly for my Apexi intake filter. If I were you I would take the piping set up and have it aluminum-welded together unless you don't mind couplers.

I will get you good pictures of everything when I get out of class.

Overall, I like it, it's very responsive and has worked well for the 30-50+ miles I have had it for. No problems, not to mention it can hold quite a bit of air because of its size.
yeah i'll probably weld parts of it together when i get the chance to. awesome! i'm looking forward to seeing those pictures. what size piping is it? and is there a BOV pipe at all?

johnny butt
Posts: 690
Joined: Tue Nov 13, 2007 8:19 am
Car: 1993 240sx Convertible

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no BOV pipe or BOV for it, but you could add one in easily if you were welding the piping together in the first place.

Only reason I don't have one is because I didn't have a BOV to use.

I believe the piping is 2.5", as well as the inlet and outlet size. I will measure for sure when I get out of class.

johnny butt
Posts: 690
Joined: Tue Nov 13, 2007 8:19 am
Car: 1993 240sx Convertible

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zer...78590

Pictures are up there ^^

I don't want to flood your thread with them.

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RB_Seth
Posts: 152
Joined: Sun Jan 07, 2007 10:39 am
Car: 92 240sx RB25
91 240sx LT1
95 240sx 280k mile DD

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spikee306 wrote:i would definitely like and appreciate your help on this!! why are you gonna be selling your rb? and i'm looking to possibly buy the motor next week. i've looked at a couple places so far....neotechimports, enginedepot, and jdmonline...those 3 looked the best to me...i just haven't narrowed it down yet. would you be able to help me out to get a good deal on one?
I live in Irwin PA and went to school in Blairsville a few years ago... I just instant messaged you to talk about stuff rather than clutter up your thread

lanerjo
Posts: 45
Joined: Wed Oct 08, 2008 6:28 am
Car: 1990 240SX w/ RB20DET
1993 Pathfinder 4x4
1995 240sx Ka-T
Location: Overland Park
Contact:

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Tim,

This is just my 2 cents... You will want an upgraded fuel pump, and a fpr... There are other options besides the apexi safc... look for the greddy emanage, they have plug and play harnesses for the rb motor set. Plus it is much more tuneable than the SAFC.

Remember to stash a few hundred dollars away for those misc parts you will need. I would recomend having a custom downpipe built by a reputable exhaust shop in your area... mine only cost be $75 and if you talk to them really nicely they are likely to include the "test" pipe...

Good luck with your build.. keep us posted on how it goes

P.S. when i did my swap i started with a standard 5w30 till i made sure there were no leaks then i went to synthetic 5w30...

johnny butt
Posts: 690
Joined: Tue Nov 13, 2007 8:19 am
Car: 1993 240sx Convertible

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spikee306 wrote:
are you saying get a clutch for the n/a z32 rather than one for the rb25? and i have been looking at the spec clutches, i'm just not sure of which clutch to go with as of now.
Also, The NA Z32 clutch should be the same as the RB25 clutch.

If I were you, I would go with a Spec Stage 3 clutch.

I have a Stage 1, and it is alright since I plan on mostly driving around town (weekends, etc, little to no track use). However, once I start to put down more power (i.e. rebuild + upgrade with turbo, etc), I will be getting at LEAST a stage 3. Possibly higher depending on how much Hp/TQ I plan on putting down. That is a year or two down the road however.

spikee306
Posts: 105
Joined: Wed Jul 16, 2008 5:50 pm
Car: rb25 powered 92 240sx

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johnny butt wrote:
Also, The NA Z32 clutch should be the same as the RB25 clutch.

If I were you, I would go with a Spec Stage 3 clutch.

I have a Stage 1, and it is alright since I plan on mostly driving around town (weekends, etc, little to no track use). However, once I start to put down more power (i.e. rebuild + upgrade with turbo, etc), I will be getting at LEAST a stage 3. Possibly higher depending on how much Hp/TQ I plan on putting down. That is a year or two down the road however.
yeah i was looking at the spec clutches more the past couple of days. and i think i'm gonna go with a spec. i was looking at the stage 2 clutch...but seeing as the stage 3 is pretty much the same price as the stage 2....i'll prolly go with that.


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