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-   -   supercharging???? (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/supercharging-887820/)

ifryrice 02-17-10 08:47 PM

You were able to put down more than CB's car? I haven't seen anybody else even come close yet, which was the 210 on the 12psi pulley with every imaginable bolt on. The only thing they didn't have was cooling. I kinda figured 200-225whp was the hard cap on those. The Whipple is where it's at if you can afford it, all the advantage of positive displacement with way better efficiency. That was definitely among my most favorite builds. If I still had the resources I'd build another setup for my car, but instead it's got something almost as evil as a supercharger, sequential twins. I'm a gluten for off the wall fab jobs!

Edit: Though, the aftercooling is about the only other thing I can think of in terms of getting more out of it unless they've changed the charger design lately, it looks like you've got most everything you throw at it so I'd be interested in seeing what it puts down.

rotordad 02-18-10 12:25 AM

I will definately let you know when I get some numbers after the rewire. I would like to try a Whipple maybe in the future after I finish this car & my turbo project. The sequential twins are on a FC or FB?

ifryrice 02-18-10 02:05 AM


Originally Posted by rotordad (Post 9812785)
I will definately let you know when I get some numbers after the rewire. I would like to try a Whipple maybe in the future after I finish this car & my turbo project. The sequential twins are on a FC or FB?

In my GTUs, bolted to a 6port 13B non-turbo block. It's a project i've been working on for a few months, I had my brother modify the FD lim to fit the 6port block, and have all of the FD hardware bolted up. It's powered by a megasquirt running sequential. It's taken a lot of work and tweaking here and there to do but it certainly was fun. I had a full 13B-REW from a FD i sold a while back, the oil seals were shot so I figured why not try to retro-fit. I need to fab up an intercooler, finish the exhaust, put in a different clutch (using a GTUs tranny at the moment because I don't have a clutch for my TII driveline at the moment). Whenever the weather permits I'll be able to get it out of the garage and finish tuning/dyno it. I'm hoping for near 300whp when all is said and done.

On a related note, it's nice to see people who've taken the 'proper' steps to making superchargers work. They're a lot of fun if you can afford it and come into it with the right perspective (ie knowing their efficiency, how to handle the heat/pulleys, upgrading the oil feed, exhaust, etc). The one thing I did like about the Camden's was the sound. None of my other blowers had quite the whine they did. It's a shame they just weren't more efficient and more reliable at times. (Though, I still have my quirks with the EFI kit, which goes well beyond just those). I'll be updating my GTUs thread whenever the weather permits, the garage isn't powered or heated and it's snowed in.

rotordad 02-18-10 08:41 AM

The GTU sounds like a great project, good luck on that. Yeah the Camden definately has it's problems, I not to sure about thier EFI set up. I had mine before they decided to do that. I got the idea from an old Holley projection kit my brother had on his Camaro. You are right people need to understand that peak power is not a key point with these set ups & need to understnad how it all works. I am never satisfied with things that is why I spent a little money & time to improve on what they offered. Well it was good disscussing this with you & I'm sure we will do this again. So once agian Good Luck with your project.


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