This guide will assist you in making a seamless LS engine swap. Given a 180° thermostat (optional 170°F thermostat), I'd like to know what temperature an electric fan should be set to turn on. Attach the tan/white wire to the sending unit. When a car manufacturer builds a vehicle with an electric fan, that fan is set to turn on at a specific temperature. Disable Temp: Temperature at which the fans will switch off after ignition off; Run Time: Maximum Fan run time after ignition off if Disable Temp … In an LS conversion you can use the fan leads that come out of the factory or any other engine controller to turn the fans on and off at the right time. The 940 fan is the easiest to remove. Allows the use of aftermarket, or original coolant temp sensors on your LS engine. Your temp gauge will be steady when up to speed. The engines that the author refers to in his article are the 4.8, 5.3, 5.7 and 6.0 engines because they share the same platform and most parts with the actual 5.7 aluminum LS1 engines. Engine LS2 with E40 ECU. The LSx motors have a Temp Sensor (12mm x 1.5) on the front of the left cylinder head. Please verify length before ordering. troller includes a data logging feature. Would like to see a little sooner. Welcome to Part 3 of the LS swap in my 80 series Land Cruiser! The LS motors (Well, at least my 5.3, but I believe all) have 2 ports for coolant temp. Unlike the Ford Taurus fan, the Volvo fan can be removed from the shroud. If both fans are controlled by … LS engine using an adaptor. The fan you need is from a 1990’s Volvo 740, 850 or 950 sedan or wagon. You need 2 temp switches for 2 speeds. John, not so much what switch it use but where I can put it on an LS1.We have adapters for the OPS and the temp gauge but the cooling fan switch is a lot larger than any theaded hole in an LS . results for both a dual fan setup, or a Taurus 2 speed fan setup. All PSI Harnesses are Made in the USA. Video 101: Basic Guide to LS Engine Swap Tuning Posted by David Fuller on September 23, 2014 at 3:03 pm In case you’ve missed any of our series of QuickFlicks videos on LS engine swaps , we’ve covered how to choose a camshaft , intake manifold , and cylinder heads for your swap. Make sure the FAN 2 temps are not out of whack. Most LSx swaps use the pass side port, as the PCM needs the driver's side sensor input. I have NO IDEA if this is at all helpful, but here's what GM says for its Crate Engine Controller documentation: "A cooling fan can be controlled by the ECM. As for the transmission, swap kits exist for both stick shift and automatic options. PSI sells Standalone Wiring Harnesses for GM Gen II, III, IV, & V LS/LT based engines and transmissions. Cooling fans in original car were controlled by the ECU in two modes via 3 relays. If so, my bet is either the secondary fan switch or relay. It is held in with (2) bolts at the top, and clips at the bottom. Made in USA with a start-up guarantee. Reply. One single temp switch instead of 2, just gotta drill and tap a brass adapter fitting to accept the M14 x1.5 thread. 14/21 11a. Fan did not come on at start up. Since every LS engine swap is a little different and there are lot of choices to be made, you can use this guide as a reference for ideas and part numbers as you move through the process. I'm looking for a definite answer. On the Holley wiring harness, you should find a 3-pin connector labeled INPUTS/OUTPUTS. Several places sell adapters and/or sending units for the 12mm x 1.5 thread. LS Swap Guide by LSX Innovations INTRODUCTION. Good luck. Even though we’re using an LS3 backed by a manual transmission, the same process follows for any swap project of this kind. In a light vehicle cooling is not likely an issue, but towing in hot climates at low speeds is a bad deal with an electric fan. Solution = BMW 91 / 99* C (180/195*F) dual temp switch Part # 61311378073< $11 from Rock Auto - can't beat that. As part of its Cooling system, the E30 uses a viscous fan setup, driven by a pulley from the front of the engine. The Ultimate LS kit has a se-quential fuel and spark control with individual cylinder trim. Before getting too far into a discussion of electric fans and PCM calibrations, it … I'm pretty sure most LS setups have 2 fans where the primary fan is controlled by the ECM and the secondary fan is controlled by a fan switch. Member of the NorCal Brotherhood! It’s not a forum to comment on how you would do it better, nor is it a post for any vehicles other than 03’ & 04’ SS’s. What is the best and/or proper program to use for controlling the fan speed of my 5 fans? Control is set to turn on a 12 V fan at 100 Deg C (212 Deg F) coolant temperature. Save Share. I'll continue to work with it but you got me headed in the right direction. There is a mirror port on the right rear with a plug in it. The primary request ran both fans in series at low speed and then the secondary request ran both in parallel at high speed. The fan override switch is indicated by the white arrow in our photograph. We’ll only be using the tan/white wire- the other two should be secured where they can’t short out. On: Temperature at which this fan stage should activate. 4) Not recommended for heavy duty vehicles. replace if so, Check the temp sensor that is … I am new to all this so if I’ve planted a boot in my mouth please forgive me. First check the fuse and see if it's bad. For a c10 swap there are a couple things to consider when choosing the right mounts for you. Like the game “Control” on Ultra settings. The Gray with Green Strip goes to the FAN 2 relay. LS swaps can get pretty pricey, but we found an article written by MeanYellowZ on LS1tech, that tells you how to do a LSx swap for cheap. The port located on the driver side head, toward the front is the sensor for the computer (In the newer cars the computer sends the signal to the dash, in our cars it does not). Fan Stage 2. Not a big deal, but noticeable when you change over to an electric fan. Here is a new post concerning the installation of the GM 05’ electric fans in 2003 & 2004 Silverado SS’s only. popular LS v8s have the intake air temp sensor in the MAFS itself, so swap cars, we like to remove the Evap solenoid behind the throttle, open it up a little with a grinder or drill, and then RTV and hammer in the sensor with a dead blow, works awesome, right in the intake stream without being an obstruction. No cores or modifications needed. Has a depth of .850 from the end of the adapter to the bottom of the pocket. (Volvo 940 Wagon) Yea Higgs! There are some mounts which allow for the stock LS air conditioning compressor to be kept … The 2-speed Volvo fan and relays have become a popular swap. Check those temperature settings closely. The system also comes with stainless steel oxygen sensor bung(s), target AFR and timing control if desired, two fan control outputs, 5V tach output driver for most tachometers and a Could be a bad fan switch or fan relay. Ignition Off Fan. The GM harness has a lead for oil pressure with 3 wires. All you have to do is type “ls swap mounts” into google to see what I mean. Thanks! 3) Your temp gauge will fluctuate in stop & go traffic. Came on in the upper 190s. Most aftermarket gauges come with a 3/8NPT adapter. If you've sacrificed those precious inches to a bigger engine, here's how to replace your fan with an electric alternative. What is the desired temp to be in while playing a heavy graphics game? This post is for strictly to tell you how I did it. Once I get help with the proper program to use, it safe to always have the fans at a higher speeds if I don’t mind the noise? ... 10 years LS Swap experience. That's how I came up with that value. Then, inside the car, you’ll pull the tan/white wire from the GM bulkhead connector & Transplanted from 2005 GTO. Cooled it down and then tried dropping the temps to 15% in that 192.2* frame but then the fan came on at start up. Off: If activated, temperature at which this fan stage should de-activate. FAN ON SWITCH Settings: Manual-On furnace fan: Push the white fan override button "IN" to set the fan to its MANUAL position to force the furnace blower to run continuously. That's where A-Team's engine and transmission wiring harness comes in. Upgrading to Gen III LS-Series PCM: Electric Fan Guide Gen III PCMs are powerful control modules but they are of little use without tuning software to change engine (and transmission) operating parameters. LS fuel system swap guide for OBS 1988 to 1998 Chevy and GM K1500 / C1500 trucks This fuel system swap guide will show you all of the parts needed to successfully install an LS engine into your OBS (old body style) Chevy or GM pickup truck. Most fan controllers have an 'automatic' and 'manual or over-ride' toggle switch so you can either let the fan turn on/off by temp or you can manually turn the fan 'on' but when in manual position it won't turn it 'off' if the temp is high and you wire the relay as per the instructions were is … LS Gauge Adapters 3/13 If you plan on running aftermarket gauges on an LS engine like oil pressure and water temperature, the easiest thing to do is … We have many other sizes in stock to fit your needs. An LS engine swap is a No-Brainer when it comes to adding some affordable horsepower to a project car, but any swap comes with its share of headaches, including wiring. 3 digit numbers for identification: 1 Bar: 039, 460, 883, 876, 153 2 Bar: 886, 012, 539, 609, 701 3 Bar: 749, 861 The logic module uses the manifold absolute pressure (MAP) sensor to determine the absolute pressure (not the relative to atmospheric pressure) of the air inside the intake manifold and the atmosphere (barometric pressure). #1. Brand new LS3 swap (drive by wire) wiring harness for FRS/BRZ/86. From the factory, the Gray with Black Stripe wire goes to the FAN 1 relay. Comparing wire schematics between an LS-series engine and Vortec V-6 or Vortec V-8 engine reveals that the same IC circuit controlling ignition coil 1 on the LS-series engines is used to control the ignition control module (ICM) of the Vortec V-6 and Gen I small-block Vortec V-8 engines. Every LS engine shares the same mounting position for both the engine and transmission, whether it’s the LS1 or the LS9. While efficient, this arrangement takes up a lot of space; too much space if you've undertaken an engine swap to a larger lump. Gen II LT1/LT4, Gen III (24x) LS1/LS6 and Vortec Truck Engines, Gen IV (58x) LS2, LS3, LS7, & Vortec and GEN V LT / ECOTEC Engines. Fans should come on around 185*-190* unless you have them programed to turn on at a lower temp (mine are set to come on at 165* because it's hot all the time here.) A-Team Performance Electric Cooling Radiator Fan Relay Kit With Thermostat Installation Hardware Wiring Set 180 to 200 Degrees Temp Sensor Temperature Switch 40 Amp Relay 4.3 out of … Looking for an Affordable, In Stock, Plug and Play wiring harness for your LS Swap? New to all this so if I ’ ve planted a boot in my 80 series Cruiser... Sending units for the 12mm x 1.5 thread are not out of whack several places sell adapters and/or units... 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