back in 2005... lol
hello... projectnissan... zzzzzzzzzzzz
a pic of the myself and coyote way back when i first started workin on her (early 2005)
240SX History/Termanology
Thanks to Andrew Kang and his love for 240's, go check his ride out along with everything else on his page, knowledgeable guy. publicenemy137 - Andrew Kang
Here are some terms that are commonly used in Japanese silvias:
Some Terms You Might Hear Used Alot In Relation To Japanese Vehicles
Zenki - means early model. for example, we will use the 180SX. A Zenki 180SX would be those from '89-'90, with the "pig nose" front end and CA18 engine.
Chouki or Chuuki - means mid-model. Chouki 180SX would be those with the nicer round front end, and with the first available SR (red top), made from '91-'94 (in North America) and '91-'95 (in Japan).
Kouki - late model. Kouki 180SX are those with new taillights, front end only sold in Japan, and black top SR, made from '96-'98, Japan only.
these terms are thrown around alot concerning Japanese vehicles.
Short Explanation Of The Term "Sileighty" (if you didn't already know it)
as you well know, 180SX's are very popular drift cars in Japan. with drifting comes crashing. the 2 go hand in hand. if you drift, then you WILL crash at least once. it's not an "if", it's a "when". anywho, these drifters in Japan with their 180SX's would have an accident involving the front end of their car. but they found out that 180SX front ends are more expensive then Silvia front ends, because of the flip up lights and the mechanisms needed to make them work. the Silvia front end is also lighter because of the lack of those mechanisms. so, since the 180SX and S13 Silvia platforms are exactly the same, these drifters figured out that, for less money, they could buy a weight saving S13 front end and stick it on their 180SX. this hybrid freak-car was given the name Sileighty. why? well, it's simple. the Sil stands for Silvia. since the front end of the Silvia was used, they use the front end of the word. and thusly, the Eighty stands for 180(SX). again, since they used the back part of that car, the back part of the word was used. and the rest, they say, is history. another popular variation in Japan is the One-via. a One-via is the exact opposite of a Sileighty. it's a 180SX flip-up-light front end on an S13 coupe rear end (one for 180, via for Silvia)(all north american S13 coupes were technically sold as One-Vias). since the 180SX front end is heavier and more expensive, this serves no real purpose except to be unique. some other variations are the Sky-eighty (Skyline front on 180, needs custom fabrication), Cef-80 (A31 Cefiro front end on 180, custom fab needed), One-firo (180 front on Cefiro rear, LOTS of custom fab...) and the ever popular 1580 (S15 Silvia front end on 180, technically this is still a Sileighty, but it's called a 1580 so that it's easy to differentiate between S13 and S15 Sileighties). there are countless other combinations, most of which require custom fabrication in order to look good.
~ will add more to "240sx bootcamp" later! For now this seems to be some good info
RB engine series information:
(taken from http://240skyline.nissanpower.com/custom.html )
Q: What are advantages of the RB25DET over the SR20DET?
A: The RB25DET is an inline six built of practically a bullet proof block. It can handle more boost than the SR in stock trim. It is also capable of a lot more HP than the SR and has a lot more torque to start out with. The average black top SR puts 181-185 HP to the Rear wheels, whereas the average RB25DET puts 240-248 HP to the rear wheels. Simple upgrades on the RB can get you over 400 RWHP and with the right tires can put you into the 10's for the 1/4 mile if you boost and tune correctly.
Q: What is required to make the RB25DET fit into a 240SX?
A: All that is needed is the clip, driveline, tools, patience, and parts for extending/crimping wires.
Q: Do the RB parts interchange with any US-Spec Nissan cars?
A: Yes, in fact, the RB25DET uses the same clutch as the 300ZX Non-turbo. It also shares the same spark plugs, oil filter, and ignition coils.
Q: What extra parts do you recommend with the swap?
A: I recommend getting dual power fans to help with cooling, a Walbro 255LPH fuel pump to supply sufficient fuel, a new air filter for better breathability, NGK Iridium spark plugs for better spark and more HP, a decent sized downpipe and exhaust for better breathability and airflow, a new clutch for longevity and better grip, and a LSD so you are not burning rubber all the way down the track.
Q: Where can I get aftermarket support for the RB?
A: Aftermarket support can be found through me for both new and used parts. Other places are starting to stock parts for the RB swaps such as After-Dark Tuning. Other companies that carry brands such as Greddy, Apexi, HKS, and Blitz can order the parts for you from Japan.
Q: What modifications are necessary to the 240SX?
A: To make the engine fit properly with stock mounts, you will have to accomodate a few things.
1) As with any turbo swap, you will need to cut holes for intercooler piping.
2) You will need to shave (using a dremel or similar tool) a small portion of the turbo manifold that connects to the downpipe. This is necessary for steering rack clearance and does no harm as long as you do not shave too much off.
3) You will need to make approximately a 6" cut of the hood skeleton to achieve hood clearance (which isn't visible from outside the car).
4) You will need either a RB25DET driveshaft or a custom one made to fit the RB25DET engine.
Q: How difficult is the swap?
A: The swap, in my opinion, is fairly easy. Anyone who knows how to take something apart and put it back together again can do this swap. It is a simple plug and play with a few small modifications that are listed above. This was the first swap I ever attempted with no prior knowledge of how to swap engines.
Q: How difficult is the RB25DET to wire?
A: When I wired my car, I kept my 240SX interior harness (runs dash, headlights, tail lights, etc...) and got rid of the KA engine harness and ECU. I replaced that harness with the engine harness and ECU from the RB25DET. I then had to extend wires for the Gauge cluster and Ignition so that they would reach the LHD side of the car. I then integrated 5 wires from each of the harnesses ignition systems and made a power terminal where both harnesses were attached at the front of the car so that they would each receive power.
Q: Is it true that you have to cut into the firewall or extend your front end?
A: No, there is no need for cutting into the firewall or extending the front end. If you wish to use the stock engine fan that attaches to the fan clutch assembly, you will have to re-locate your radiator or extend the front end. This is why I recommend power fans for extra cooling.
Q: Can you use the Stock RB25DET mounts?
A: Yes, the stock engine mounts are bolted to the stock crossmember which shares the same bolt pattern as the KA crossmember when bolting up to the 240SX chassis. The tranny mount can be used, but must be taken off and flipped backwards. After you do this, you should add a spacer 1.5" thick made out of anything such as wood, metal, plastic, rubber, etc... as long as it will not collapse.
Q: What do you use for cooling the RB?
A: I use my stock 240SX radiator and have no problems. The RB radiators can be used, but modifications must be made for it to fit into the 240SX as it is about 2.5" higher than the stock 240SX radiator. If you are worried about overheating problems, fluidyne radiators are a good option.
Q: Is the RB25DET a reliable engine?
A: Yes, if it was not reliable, do you think Nissan would have put it into their signature car...the Skyline? It is the engine series out of their best cars and is daily driven in Japan.
Q: Would the RB25DET make a good daily driver?
A: Mine makes an excellent daily driver running low 13's to mid 12's on street tires. It handles well and has great acceleration. Think about this: are Corvettes good daily driving cars? They have over 300HP and are fairly lightweight for their size and design.
Q: What kind of gas mileage can the RB25DET get?
A: My car got 28-30 mpg highway and 25-26 in town before I fried my turbo. I am not sure if this is average for these engines or if mine just runs exceptionally well.
Turbocharging a KA
If you have a KA24de and want some good HP gains for cheaply turbocharge it
A stock KA24 will handle 5psi of boost easily. You can run this on stock fuel injectors, pumps etc... you can use the stock MAF meter as well. This will also work without an intercooler at this psi.
Most Junkyard turbos run about 100 usd. Most stock turbos are internally actuated(wastegate) this is also good for later on.
Check out RealNissan.com, they used to advertise a internally wastegated manifold for either the SOHC or DOHC ka24 for 330 usd with a T3 flange.
40 bucks for a manual boost controller that actually works!
check out www.z31.com, they have a great FAQ and will tell you about this new manual boost controller and give a link to it. It holds boost and doesn't spike like all the other manual boost controller contraptions produced before this one.
100usd generic Sr20det 3" downpipe off ebay
100usd for oil lines, flanges, and weilding for the required hoses on the center section of the turbo.
100-200 bucks for Turbo plumbing. You could use your imagination on this one and come up with something VERY cheap, like under 50 bucks, depends on how intiative you are and how tight your budget is.
So for 5psi of boost, you will probably make around 200rwhp, everyday, all the time. This will cost you under a grand, thats under $1,000 usd.
CHA CHING..
p.s. This would cost as much as say getting Underdrive pulleys, header, and a catback exhaust, which might make you 155rwhp.... You decide what makes more HP for less money.
All information brought here was by any resource from and to include 'publicenemy137' (Andrew Kang). Any and all modifications done to your vehicle are solely your decision to make and most likely require a proffessional level of competence to build/install. Take that as far as you need.
Page 1: Updates and Everything
Page 2: Engine Setup
Page 3: Interior Styles Page 1
Page 4: Interior Styles Page 2
Page 5: Exterior Styles
Page 6: Suspension/Braking Page 1
Page 7: Suspension/Braking Page 2
Page 8: 240SX History/Termanology
