Hey everyone, so I've been doing some research. I wanna get my LS to 400 whp. I figured out something interesting. Lexus, like any smart and efficient company, made the ISF 5.0 engine from the 4.6L in the LS460. Fun fact, if you take the ratio of the two displacements and multiply that by the 4.6L engine horsepower, you get the stock hp figure of the ISF. The engines also look eerily similar, and have the same compression ratio and automatic Trans if you bought the ISF with the auto. So the powerrain is functionally the same. Another fun fact, the engine bay mount points are all eerily similar too. The battery, fuse boxes, etc. are all almost the exact same, if not identical. The only difference I can tell is the fact the LS460 has is an extra MAF sensor and for the secondary air inlet. Neat.

Now, the aftermarket mod community for the LS is not large, and there are nearly no power additive mods like supers or turbos to choose from, probably due to the clientele who normally buy Lexus products. The only one's you can find are for the ISF and GSF. Given the similarities, has anyone heard of, or had success with implementing mods developed for the ISF/GSF platforms jnto the LS460? I don't want a racecar, just some more chooch.

 

Found this baby online (rusian forum I guess). It's Tom's.

 

Its possible, but going to be a big pricey pain and modifying ISF/GSF parts is VERY pricey, ask how I know. You'll need headers, which will have to be custom until a company comes out with some, and a custom tune since the ISF/GSF tune for sure won't work. This MIGHT get you to 350whp, then a 50 shot of nitrous will do the rest. Unfortunately for the LS crowd, most of the go fast mods for the 1UR are coming out for the GS460.

Due to the LSs dual intake, no ISF intake will work (not that I would bother), and any FI kits for the ISF/GSF will need much fabrication and modification to work.

Or you could just do a 100-125 shot without any other mods since the LS460s come with around 300whp.

This would be sick on one of the LS460 F sports with SPDS, take some weight out and be sub 4000lbs. look forward to what you come up with!

 

we had a company here willing to make a supercharger kit for our cars....it was mocked and bashed by most members here ...so he left

 

what a beauty

i love top mounted superchargers, had a maggie on my C5Z , the power hits at lower RPM wth these