That's very interesting about accidently using the FWD E15S pressure plate. You are right, they are both 180mm units with the same spline. I race an E16 powered B11 FWD Sentra, and I had a problem with my stock clutch slipping after the twin side drafts were installed. In any case, I looked in the factory shop manuals and noted the clamping pressures of both clutches, and the RWD B310 clutch had more pressure. I installed a regular B310 pressure plate on my E16 and never had it slip again.

Incidently, I bought one of those Nismo 550 kg pressure plates back in '96 for $210. I never used it, because the B310 cover had worked for me. I will finally use the Nismo cover when I get the blower put on.

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Mike do you have any pics of your car or motor? I'd love to see how you made the twin SU intake. Fabrication is cool!

Yeah, it's been a bit frustrating getting this project going. It all started when I was cruising Ebay and saw a 310 motor for $99 plus shipping. Had to have it since I'd been wanting to build a hotter motor. I figured I'd just start collecting parts and build it up when I had everything I needed. After it arrived ($125 for shipping) I noticed the flywheel looks a bit different, and whats this extra timing plate above the front pulley? and hey this valve cover looks a bit odd. I go back to the auction and read all the way to the bottom of the page and see FWD! Well, I figured out that if I just change the flywheel, backing plate, oil pan, water pump, alternator brackets, front pulley, motor mounts, and valve cover , I'd have me a RWD A15 motor. Well all that worked, and youd think I'd learned my lesson about the differences between 310, and B310.... The rest you all already know but thanks to Ebay again, I ended up with that nice brand new 310 pressure plate! I'll get some pics up when I figure out how to post em.

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Sounds great. If you can't figure it out, send them to me, I'll post them for you.