Lsxis300

putting in a lq4 6.0,4l60e,hopping for around 450hp to the wheels.getting all the parts together.i know parish8 did it with a auto.still need some help with harness as far as the fuel pump,a/c and rad fan.

dlove

iTrader: (23)

What specific questions do you have in regards to a harness? Our standalone harness would include attachments for the three items you listed out.

http://www.painlessperformance.com/webcat/60217

Lsxis300

Can I run the lexus a/c and fuel pump relay with the ls harness,I going to keep the lexus pcm to run some systems I know the radiator has a sensor that controls the fans.the lexus has a auto do I need to jump a wire in the harness for the neutral safety switch.

Lsxis300

I contacted painless and they said the efi harness don't have the a/c connector for the a/c compressor.

dlove

iTrader: (23)

The LS harness just has an AC requested connection. This circuit is used to inform the PCM that the AC compressor has been turned on. This
wire is to be spliced into the circuit from the AC switch to the AC compressor.

For the fuel pump you could just take the 12v lead and power your relay with it.

You can control the fans via the LS harness. It has outputs to trigger fan relays based off of the coolant temp sensor.

Lsxis300

Thanks,I'm ok with wiring but I'm a visual guy.i can understand it better if I see it on a wiring diagram.

atomic 6

We, had to relocate the factory lexus pcm under the drivers seat, and lengthen a bunch of wires to get the dash to read normal.

You should be able to find all that Jim(parish) posted up on the build here, somewhere.

We put a smaller(physicallly) battery in it, to give us room to mount the factory pcm in the engine compartment.

We had to flip the shifter linkage from the pass, side to the drivers side to get teh factory auto shifter, to run the 4l60e.

The gas pedal was a pain in the ***, if I remember correctly, it has been a few years, ago.

It didn't have air conditioning, there was some reason why, and can;t remeber now, but it made things alot more complex. It had nothing to do with the wiring part of it tho, I'm sure of that.

Lsxis300

i read all the post from parish8 anybody know how to get a hold of him directly.

Lsxis300

also anybody out there,know what stock manifolds will fit on this swap,cant aford headers at this time.also what would be a good cam 3k stall,built 4l60e

Proudsuperior

DLOVE, you posted a link for the painless harness. I don't see anywhere where it says the harness works with a 4L60E. Did I miss it?

I just pulled an LM7 w/4L60E, and am working on my swap as well.

Lsxis300

Yes they work with a 4l60e ,you can go thru Jegs.

Lsxis300

Can't post in the parts wanted,I'm looking for a ls hot cam.

BOXCHEV

iTrader: (3)

Will keep an eye on this thread..Ive been entertaining the idea of an is300 build.. i havent seen one with a 4l80e yet? Anyone know if it would involve a lot of hacking to fit on in there?

Lsxis300

You could probably make it fit but you would have to move gas pedal and hack up the tunnel really good.

Lsxis300

Here are some pics,100k motor out of 01 silverado. Everything was in good shape,but I'm going to put new bearings and rings.i got some gto mounts for nothing I think I can make them work.Im trying to do this build as cheap as possible.it going in this,my 02 is300 daily driver,I'm getting everything together before I pull the motor.

Lsxis300

Motor

Lsxis300

found a good deal on a cam,lunati 224/230 580 lift 114lsa.$150 should go good with a 6.0 im using a set off 799 heads figure compression around 11 with a set of lq9 flat tops.

Lsxis300

Have not had a chance to do any work on the motor,I order the bearings and rings.went ahead and shaved and smooth out the truck intake i read they flow as good as a ls6,might not fit under the hood,if so I sell it.

Lsxis300

Well decided to leave the is300 alone,it a nice car 85k runs great.found a 05 rx8 auto with a blown motor for 2k.got a GTO pan and a is engine cradle already modified for the GTO pan for sale 300 Obo for pan and 150 for cradle + shipping .i know the rx8 swap is harder but what the hell.

Here it is

Lsxis300

Well got some stuff done,sold the motor for 500,still have the trans.wired in my own mil light in the instrument pnl,bought a mustang 8.8 irs to swap in later on.going to fab some mounts and still need to rebuild the lq9.