I have a Spec super twin going on the RB26 soon. It may be a while til the car gets tested though. I don't know exactly how it will be, but from the reviews on SR20s, Supras, EVOs, and STIs I have read, they seem to be the ticket bang for the buck twin. I doubt I will ever go over it's 800ft/lbs rating. I prefer twins anyway due to the fact that they use more friction surface instead of applying more force. This helps alleviate the insane pedal pressure increase from strong singles with super hard spring pressure plates, and it lasts considerably longer than a single.
My old RPS Max with 6 puck disk got raped by my 500hp SR20 within a year of spirited street driving. Pedal pressure was through the roof too. It made stop and go traffic almost impossible after leg workouts at the gym. It takes 70-80lbs to push the silly clutch pedal down. It was replaced by a Carbonetic carbon twin with almost stock pressure feel, and 3 1/2 years afterwards, it still has about 80% life after ripping the motor out of the car.
Never again will I go with a beefed pressure plate clutch. If I make too much power for a normal single, I am moving up to twin or higher for now on. In the long run, I believe that multi-plate clutches pay for themselves since they last so long, and you get to drive them in comfort. The only downside is the plate rattle and clanging you'll get with most of them when they are disengaged and free spinning in parking lots and stop lights lol. People will think you got a POS car

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