IMO if you rebuild the engine (especially for low compression) you lose the actual characteristics Honda planned for this mighty engine. I wouldn't open it up especially if I have supercharging in mind like you do (and I do - Vortech). 450whp is huge power. I know you want to get more and its nice that you want to go with a supercharger to retain the F20's spirit in order to reach that target. Junkie knows what he's talking about so definitely take his advice seriously. Sideways has a really great Vortech setup.

 

Get dyno'd at Church Automotive if you want 600 with a proper high boost S/C setup. That will be way too much effort. I was SOS S/C'd for years. It was a great kit. My s2k made ~509/309ish DynoJet using a 3.0" blower pulley on E85 and stock crankshaft pulley. In the twisties, belt slip got annoying on hard long runs. I even had a Reichard Racing pulley. Now, I'm turbo'd (Ptuning kit with a GTX-3076 Gen 2) and don't have to worry about belt slippage. When I first got my kit, I thought there would be lag, but there is practically no lag vs bigger turbos. With a proper boost-by-speed or gear setup, twisty action is much better (for me anyways). After all these years, I wish I went this route the first time.

 

Thank you very much.

Best comment ever! You convinced me keeping s2000 almost stock with needed mods in order to keep F20c spirit and function that it was given to him from Honda factory. I plan for max hp that can get from engine without changing his character.

I believe that turbo kit will change his character so for me it isn't an option anymore.

I'm between tts and sos kit. What you think?

ONLY HONDA MOFOS!

 

But you change s2000 character by boosting it. Also i believe tha sc is more reliable than turbo. Belt slip can be unluckiness "suchlike" things can happen in turbo setup

 

Here is my experience with a Rotrex C38-92. All of the previous posted information is very accurate. I also agree that the SOS kit with the 1200 blower would very likely be the most reliable option of them all...even though I have not had any issues with my Rotrex I do not track my car either. I'm at 551whp and 367wtq with this on E85.

https://www.s2ki.com/forums/s2000-fo...-92-a-1086804/

 

Soul...it sounds like you are really happy this new set up...now that you've had it for a while, are you truly happy with the response of the kit? RainH8R just got his built engine back in the car along with his P-Tuning kit and a GTX 3582 Gen 2...I'm hoping to drive it sometime soon to experience it. I do think that if I were ever to go turbo your setup is exactly what I'd do. After having my 2018 Type R for just over a year I'm still not a fan of turboed cars...as I know your kit isn't really the same, it's still that lag from throttle pedal movement to forward acceleration that I don't like. I do like the freeway roll-ons in 6th gear though!

Sorry...don't mean to Jack the thread...just thought I could get a quick opinion from you.

Thanks, Brian

 

Very useful post.

Engine internals were stock?

Which kit you believe i should buy a sos stage 2 or tts?

 

Thank you. Yes, my internals are currently still OEM stock. What are your ultimate goals and how do you intend to use the car? Primarily street or track? I personally like the TTS kit but I do believe that the SOS kit with the 1200 Paxton's blower is very likely the most reliable (from a beat on it/track point of view)...since I do not track my car I can't say to the durability of the TTS kit...I have had NO issues to date and do drive the car hard from time to time...I've driven an SOS car and prefer mine to it...just my personal opinion...I truly can't say anything bad about the SOS kit...its very well engineered.

Remember that my TTS kit is not how it came from TTS. I've changed quite a bit to achieve my power level...as detailed In my build thread. The modifications start here...
https://www.s2ki.com/forums/s2000-fo.../#post23945935

 

Car will going on track some times but usually it will be street driven. My goal is to get the maximum hp without losing f20c character that was given to it from Honda factory. Thats why i dont think of getting it turbocharged.

 

Of these two even though I have the TTS kit I would probably still recommend the SOS kit. Their presence in the US is great and have very good customer service. I have many of their parts etc in my car. As another option you COULD call LHT Performance in Florida and speak to John about the Kraftwerks C38-92 kit..they have had good luck with the Rotrex blowers and are probably the most knowledgeable on that kit...they have made their own changes to the kit to make it reliable. Many on this forum have had trouble with the C38 KW kit but just maybe this has been corrected with LHT...just a thought.