I was just wondering as there are quite a few supercharged RCF's and GSF's if anyone has supercharged the LC 500?

 

Based on my research and having asked around - no one yet. The issue thus far with the LC (as with many other Lexuses), is cracking the ECU. The other issue is finding a reliable after market tuner who'd be willing to spend the time on cracking that ECU, and doing R & D for such a low volume vehicle. I believe Boost Logic has been in the works for a SC, but nothing as of yet!

 

Thank you.

 

Unfortunately Boost Logic has been "working" on it for over two years. Either there has been no progress or they simply aren't working on it. I lean towards the latter. I have emailed RRracing on a few occasions and they have had no luck. I figure if anybody could be successful it would be them, considering their expertise in tuning other lexus models. Maybe one day we will be able to put a blower on the LC, but at this point I would settle for a good aggressive tune to liven things up a bit.

 

Agreed. I actually messaged RR Racing myself, and see their response below...

 

^^^^I also messaged RRRacing about the possibility of them adapting their Air/Oil Separator to the LC. They showed absolutely no interest.

Lou

 

Many thanks for all the replies. I guess it's a no for the time being

 

How about turbos?? Probably same problem with ECU?

 

Back in 2002, I supercharged my 1999 3rd gen 4runner with a TRD (Eaton roots type) blower. It was a 100% DIY bolt-on installation that simply replaced the existing intake plenum. It was driven by the alternator belt (lengthened and with a tensioner added)

I had a custom pulley machined (larger) to lower the boost from 6-7psi standard down to 5psi. While the power gains were reduced, it eliminated the need to do anything with the ECU or stock fuel system. Other than the S/C, my vehicle was 100% bone stock and had no spark knock issues. I installed the S/C at 30K miles and sold it 10 years later at 100K, all trouble-free.

Others who were using the stock pulley had to use higher octane gas, e.g. 93+ to eliminate ping. And then there were a few who installed a smaller-than-stock pulley to boost up to 9psi, but had to tune with an Apexi unit and swap out the fuel pump and injectors.

I now own a 2018 LC500 and am considering doing the same thing: getting an RC-F S/C kit but sizing up the pulley to lower the boost, such that the stock ECU and fuel system can handle it with no modifications. Thoughts?

 

^^^^Welcome to the forum lots of GREAT information here. Good Luck - Keep us informed.

Lou

 

Boost Logic has broken into the LC 500 ECU and they are working out the manufacturing details for their supercharger kit. Due to the virus, their normal R&D period before the summer was delayed, and as Texas reopened, their focus went back to working on customer vehicles. As far as I know, the kit is supposed to contain everything needed for a bolt-on installation (you would mail in your ECU for the tune). The gains weren't shared with me, but they are dyno testing mule cars in different parts of the country for proper sampling in various environments. I did ask if they needed any more mules and they said they had enough ;-)

I'm on the list for the first batch of kits when they are officially announced. No price yet because they are figuring out which materials and manufacturing processes they will use for production.

 

^^^^^^^That's interesting and exciting at the same time for the LC! I wonder if they are going to use a Rotrex type SC like what RR does for the ISF/GSF/RCF? Hopefully they don't price it into the stratosphere because it's a LC500

 

I haven't heard anything on pricing, but like you I'm hoping it's not a $25K kit.

 

Exciting news, I just heard that boostlogic is actively working on their supercharger kit. They're tuning right now.

 

Their website says coming soon. How did you hear about this? How much HP would this typically add and are there any negatives adding a supercharger to a stock engine?

https://www.boostlogic.com/product/b...-bl-010600816/