View Full Version : what do you need for ls swap
johnnybuilt
02-28-2012, 06:19 PM
Hey guys do u guys have any info on or step by step that be helpful for ls2 into a s13
lude4life13
02-28-2012, 06:34 PM
First buy an SR20, RB25/26, or rebuild and turbo the KA.
Second, search.
Edwin562
02-28-2012, 06:38 PM
If you have to ask, your not ready for swap...
Eramo323
02-28-2012, 06:41 PM
If you have to ask, your not ready for swap...
:werd::werd::werd:
a brain ...
alexanderig
02-28-2012, 06:44 PM
What do you need in order to be flamed?
1. A username
2. A question that can be answered by simply using google
slydin240sx
02-28-2012, 06:45 PM
What do you need in order to he flamed?
1. A username
2. A question that can be answered by simply using google
Touche!
msglength
diddykong
02-28-2012, 07:09 PM
A friends that works at a junk yard to get u crazy deals on domestic small block chevy's... get one that comes manual so you don't have to fucks with the ecu... search for SIKKY or Daft Innovations for conversion parts.
and $$$$$$$$
EnemyS15
02-28-2012, 07:18 PM
http://lh6.ggpht.com/-XLsbf9PGTUI/S1rA5K3btWI/AAAAAAAAA3g/h7UH1HOsOz8/Search%25252520Engine%25252520Optimization%2525252 0for%25252520Dummies%252525203rd%25252520Ed.JPG
Eramo323
02-28-2012, 07:44 PM
welcome to zilvia.net!!!
turbociv910
02-28-2012, 08:15 PM
silviav8forums.com-
Detailed Guide:
I've been working on creating a detailed guide using all the info I've acquired over the course of putting together my own swap.
Part 1 covers choosing an engine, modifying and preparing you chassis.
http://tech.240sxone.com/365/how-to-swap-an-ls1-into-a-240sx-part-1/
More will be coming soon, in the mean time this works as an excellent starting point for people considering this swap.
---
For wiring go here: http://www.silviav8forums.com/forum/viewtopic.php?t=2715
This list isn't complete, I'm sure there are a few odds and ends here and there that I'm neglecting. But this guide is updated often and the eventual goal is to cover EVERYTHING you need to get the job done. If you know of things I missed, or even have links to good threads that offer more detail on a particular topic reply to this thread or PM me with the info and I'll add it
Engine and Transmission Options:
The Engine is what you really came here for right? The LS engines are all very similar in terms of their construction and how they fit in the car. Any of these options should be treated the same way when swapped into the car.
Engine Options
LS Engine Specs
-Any Gen III or Gen IV small block chevy will work. they all have the same dimensions and mounting points, and will all accecpt the same transmisison/bellhousing equipment. That includes the L33, L59, L76, L92, LC9, LFA, LH6, LH8, LM4, LM7, LMG, LR4, LS1, LS2, LS3, LS6, LS7, LS9, LSA, LSX, LQ4, LQ9, LY2, LY5, and the LY6 among others.
exceptions:
*Accessory configurations don't always fit however, most of the truck configurations will be problematic, F-body, Corvette, and GTO accessories have been proven to work.
*Intake plenums/throttle-bodies are sometimes too tall to fit under the stock hood, this is usually only problematic with truck motors again the f-body/corvette setups have been proven to work, GTO throttle bodies are a tight fit
*the only factory oil pan confirmed to work is the GTO oil pan (again any Gen III/Gen IV motor can have the pan swapped), using one will require notching of the sub frame for clearance, also the factory front sway bar will not fit around the front of GTO pan without mount spacers.
When buying an engine make sure it includes the following
-Complete uncut Wiring Harness
-PCM (powertrain control module aka ECU)
-Throttlebody
-TAC Module (if it's from a drive by wire car)
-Gas Pedal (if it's from a drive by wire car)
-Coil Packs
-Waterpump
-Alternator
-Power Steering Pump
-A/C Compressor (if you plan on hooking up AC)
-A/C lines/sensors (highly recommended though often not included)
-MAF (Mass AirFlow sensor)
-IAT (Intake Air Temp sensor
-Starter Motor
-Fuel Rails
-***Transmission. Not required but you're life will be easier if the transmission is already installed
In general you'll want a motor that will not need anything extra to get it running.
Transmission options
Manuals
-T-56, Found in: 98-02 Camaro, Firebird, GTO*
-Others, there is no other known stick shift that will just drop in and work with one of these motors, most will require a bell housing and input shaft swap, which will drive the price up above that of a T-56
Exceptions
* the GTO shifter sits farther back than that of F-bodies, a GTO transmission will work but a small shift linkage will need to be swapped out for proper fitment. GTO transmission have a more aggressive gearing than the F-body transmissions and are preferred.
*T56s sourced from Corvettes, Vipers, Cobras, Austin Martins, etc. will not work with these motors without modification.
Automatics
-4L60E*, Found in: 98-02 Camaro, Firebird
-Other Automatic, there are lots of automatics out there that will work, typically there are problems with tunnel clearance as well as header clearance which can make them difficult, do your research if there's a particular automatic you'd like to use.
When buying a transmission separate from the motor should include the following:
-Bellhousing
-Shifter Assembly
-pilot bearing
-Slave Cylinder (this mounts INSIDE the bellhousing surrounding the input shaft)
-output yoke (not often included but helps keep the transmission sealed, and can save you over $100 on your custom driveshaft)
-** Pressure plate/Clutch (and all related bolts and clutch tool)
-** Flywheel (only necessary of the motor was original mated to an automatic transmission)
If anything on these lists is missing you will need to buy them separately
*These transmissions can be found in other cars and model years as well however they differ in their setup depending on the application they were original intended for, you should seek transmissions designed to be paired to an LS motor and used in a Camaro or Firebird Chassis (even the GTO, Corvette and other GM applications are different). You can make the other version work but be sure to DO YOUR RESEARCH to determine the differences so you know what you're getting into.
**If the Transmission was purchased separate chances are you will have to buy a clutch and pressure plate before you can mate the two. The best cheap setup is to get a Z06 Clutch setup... you can get a new Exedy clutch pressure plate, and flywheel designed as a direct OEM Z06 replacement for around $350.
Mounting Options:
Mounting an LS motor in your S-chassis is fairly straight forward, the engine bay is quite accommodating. In generally you're looking at engine mounts as well as a transmission mount and a transmission cross member.
The biggest problem is how the engine's oil pan fits around the 240sx's front sub fram (aka engine crossmember). You can either modify the sub frame to accommodate the oil pan or modify the oil pan to accommodate the sub frame.
In general the only modification you will need to perform to you chassis is hammering out the transmission tunnel. In general you will want to take a sledge hammer and open up the transmission tunnel from the firewall back to the first seam weld (~8-10in from the firewall) This provides additional clearance for the bellhousing and does not compromise anything on the interior of your car.
If using a GTO oil pan you will also need to notch your engine cross member to clear the pan, though this is included as part of some swap kits.
Fueled Racing
http://fueledracing.com/
-Includes custom (welded) Oil Pan W/Oil Filter Relocation kit
-Includes custom (welded) Engine Mounts (with urethane cushion)
-Includes custom (welded) transmission cross member & mount w/urethane cushion
-Includes Custom Driveshaft (one piece Steel, aluminum available at extra charge)*
-Custom Long Tube Headers
-Custom Power Steering lines.
Otto Factory
http://ottofactory.com
-Uses modified GTO oil pan and engine crossmember (purchased separately, also modification of your GTO pan and crossmember are available PM Otto347 for details)
-Includes custom CNC laser cut/braked engine mounts available in black powdercoat only.
-Includes custom (welded) transmission crossmember in black powdercoat. (Must use aftermarket polyurethane trans mount)
-Driveshaft (one piece Steel, aluminum and carbon fiber available at extra charge)(purchased separately)
-Custom headers (purchased separately)
-Modification of the lower heater hose on the firewall is required if you are planning on keeping the heating system. It just needs to be bend to clear the back of the head.
Sikky
http://www.sikky.com/
-Includes custom (welded) Oil Pan W/Oil Filter Relocation kit
-Includes custom (CNCed) Engine Mounts (solid or with urethane cushion)
-Includes custom (stamped) transmission cross member & mount w/urethane cushion
-Includes Custom Driveshaft (one piece Steel, aluminum available at extra charge)*
-Custom Long Tube Headers (must be purchased separately)
Completely Custom
-Use of GTO oil pan recommended or build custom
-Expect to modify cross member or oil pan for proper fitment
-Recommended to use CarShop LS1 mounts as a starting point.
-Built custom Transmission cross member and OEM mount
-Order Custom Driveshaft from a Drive shaft shop (shaftmasters or driveshaftshop recommended)*
*Keep in mind that the factory vLSD requires a driveshaft that is .75" shorter than a Factory Open-Diff. Also if using alternative drop-in options such as a Kaaz or J30 diff the required drive shaft size may be different. I've heard that the size difference is typically inconsequential however if you're ordering a custom shaft anyway, it's something to keep in mind.
Automatic to Manual Conversion
If you're converting your Automatic S-Chassis to a Stick shift at the same time you do your engine swap you will need the following parts
-240sx Brake pedal assembly (from 5-speed car)**
-240sx clutch pedal assembly*
-240sx Shifter Trim (plastic interior surround
-240sx Shifter Boot (leather or vinyl to mate shifter to trim)
-240sx transmission boot/rubber seal (seals the interior from the exterior)
Your best bet is to find these in a junk yard, on ebay or a forum BST. Failing that these parts can be purchased new from:
http://courtesyparts.com
*S13 clutch pedal can be used on an S14 but it needs spacers on the mounting bolts to sit properly (29mm worth to be exact), s14 clutch pedal cannot be used on S13 because the spacers are welded in place from the factory.
**if you can't find a brake pedal assembly or maybe you just want to save some cash, you can take a hack-saw and cut off part of the pedal to make room for the clutch. cutting it and placing a factory rubber pedal cover from a 5-speed it will look and feel like a 5-speed pedal. this will only work on an S13 though, an S14 will need to have the pedal swapped for proper spacing.
Clutch Parts:
you will need to replace the clutch master on your 240 with something stronger and you need to make sure it works with the T-5 or T-56 transmission.
"Custom Kit
see this article: http://tech.240sxone.com/186/lsx-clutch-hydraulics/
Fuel System:
An LS1 requires better fuel delivery than the factory system can handle There are two good options available. This is one area where you should buy everything new, don't worry though, it's rather inexpensive
"Custom Fuel Kit"
-Aftermarket Fuel Pump for 240sx
----- Walbro, or similar brand [$100 New]
-Fuel Filter/Presure Regulator from 98+ corvette with fittings
----Purse Choice Motorsports
----- an all in one unit [$54 New]
-Adapter and hose to hook up Nissan -6AN lines to the LS1 3/8" fuel rail
-----Adapter: http://www.purechoicemotorsports.com [$12 New]
-----Hose: (Jegs/Summit/wherever)
Power Steering:
Your Engine should have come with a power steering pump, this is adequate to run the power steering system in your car you simply need to adapt it with some conversion lines.
*Note: you should consider using a Power Steering Restricter from Turn1 (http://www.turnone-steering.com not listed on their website, just call) as the LS pump is too powerful for the Nissan Rack and steering can feel "disconnected" without one.
Stock Nissan PS lines will work with the LS pump
- http://www.silviav8forums.com/forum/viewtopic.php?t=1299
FujiiSPL High Performance Lines
-http://fujiispl.com/products.html [$109]
Custom (find someone who can make conversion lines
-http://silviav8forums.com/forum/viewtopic.php?t=791 [??]
Radiator:
-Any Radiator for 240sx (Koyo/other) [$300+ New]
-Electric Fans (from 93-97 Altima or Tarus w/Shroud)* [$150+ New]
-Radiator Piping (click for info) [~$40]
-Heater hoses see this thread: http://www.silviav8forums.com/forum/viewtopic.php?t=986
*The LS1 computer is capable of controlling electric fans so you'll either want to have the computer programmed for this and wire it up or you'll want to setup a stand-alone temperature probe and relay to control the fan, or go uber ghetto and just have the fan run 100% of the time while the car is running
Intake:
-see this article: http://tech.240sxone.com/81/lsx-intake/
Exhaust:
For the Exhaust the recommended sizing is dual 2.5" or a single 3.5" a single 3" will be overly restrictive, You will also need 2 CATS (one for each cylinder bank) for a legal OBDII compliant setup.
-headers
----- OEM C6 Corvette LS2 (non Z06) Headers
----- OEM C5 Corvette Headers (require modification to clear steering column)
----- Hinson Long Tube Headers
----- Sikky Long Tube Headers
----- Fueled Long Tube Header
----- (Custom) [??]
-Cat(s) (Catco/Magnaflow/etc.) [$60/piece New]
-Y-pipe (Flowmaster/Kooks/custom) [??]
-Catback (custom/other) [$400+ New]
Air Conditioning:
-Conversion Lines (PX Racing/Hinson/custom) [$450 New]
Electronics:
-Speed converter for speedo/odo (Dakota Digital/other)* [$80 New]
----Dakota Digital
-Wiring harness modification for dashboard compatibility http://www.silviav8forums.com/forum/viewtopic.php?t=1367 [$250 or DIY]
-ECU reflash (removes unneeded variables/tunes to new tire size, transmission, etc.)
*Tach conversion is not necessary if your car is equipped with a DOHC (KA24DE or SR20DET) gauge cluster
Recommended maintenance before installing
-new Timing chain (LS2)
-new Gaskets (headers, intake manifold, etc)
-new serpentine belts
-Sparkplugs (NGK TR55, TR55ix iridium)
-Oil Pump (LS6)
-Head Gasket (if applicable)
-Change all fluids (transmission, oil, etc.)
Recommended upgrades before installing:
-rod bolts (ARP) (especially if you're using a 1998 motor)
-oil system improvements (ACCUSUMP/dry sump/other)
-Valve springs/retainers/seals (Patriot gold dual springs/other)
-more aggressive cams (cams sit low enough that pulling them would require removing the upper radiator shroud, do it while the engine is out)
-New Clutch Slave (they're prone to failure and a paint to replace once the engine is in)
-LS6 Intake Plenum (LS1 intake is prone to blow-by oil and LS6 fixes that as well as improves performance)
johnnybuilt
02-29-2012, 01:06 AM
I didn't know there was so many haters I guess thanks for info not feeling this forum
Walperstyle
02-29-2012, 12:25 PM
^Its not so much haters is it is people tired of spoon feeding information to people that are internet dreamers.
If you are truly interested, you would know how to use google, and the search engine on this site. Best of luck.
jvega
02-29-2012, 06:35 PM
Yeah dude, you should search on Google before posting this crap. Its not hate, its the truth!
nomoremk2
02-29-2012, 07:34 PM
Hahaha give me a break. The word hater justifies anything apparently. These people are haters because they didn't want to answer your stupid question? Or google things for you? There's literally entire forums dedicated to v8 swaps. Since you're "not feelin" it here, go there, ask stupid questions and get the same response.
i dream of a one day soon lsx in my s13 coupe...
kouki_drifter
09-18-2012, 10:30 PM
just what i was looking for! I am picking up another 97 s14 kouki in 2 weeks and i plan on doing an LS2 swap into it. this info seems like a start, is there any thing else i should know about the swap? any other tips? things i should watch for? or any tricks to make things easier? i would appreciate if others would add to this thread, maybe some pics, how to's, tips?
reallygood101
09-18-2012, 11:22 PM
SEARCH, there are plenty of threads to help you with the swap all you need to do is search and you will get your answers, if your someone that isnt patient and dont know your way around cars then i suggest you not to do this swap as it is time and money consuming
wiring specialties
06-15-2014, 12:04 AM
For anyone thinking of undertaking this swap, there are a lot of plug and play options out there now.
Sikky Engine Mount Kit (http://www.sikky.com/view_item.php?id=168&catid=12)
Wiring Specialties LS1 wiring harnesses (http://www.wiringspecialties.com/gmls1.html)
LS1 Conversion Parts from Enjuku Racing (http://www.enjukuracing.com/categories/Nissan-240sx/LS1-Swap/)
Jonnie Fraz
06-15-2014, 12:29 AM
Okay what I can add to help is if you don't have a boat load of cash to buy all your parts from Sikky, or such, you better be able to fabricate.
racepar1
06-15-2014, 12:38 AM
For anyone thinking of undertaking this swap, there are a lot of plug and play options out there now.
Sikky Engine Mount Kit (http://www.sikky.com/view_item.php?id=168&catid=12)
Wiring Specialties LS1 wiring harnesses (http://www.wiringspecialties.com/gmls1.html)
LS1 Conversion Parts from Enjuku Racing (http://www.enjukuracing.com/categories/Nissan-240sx/LS1-Swap/)
Okay what I can add to help is if you don't have a boat load of cash to buy all your parts from Sikky, or such, you better be able to fabricate.
This thread is from 2012 guys...
:picardfp:
angel mkiv
06-15-2014, 01:57 AM
This thread is from 2012 guys...
:picardfp:
Lol it's crazy how much this happens..
fliprayzin240sx
06-15-2014, 03:45 AM
You can never have too much advertising.
vBulletin® v3.8.11, Copyright ©2000-2021, vBulletin Solutions Inc.