My rx-7 is done with cup holders! And a 3-rotor semi p-port N/a setup, STOCK SUBFRAME
 

Well, After 8 months of work, I have the Rx-7 running and pounding down the road. I havent posted anything on it before, wanted to wait until it was close to finished. It does feature cup holders I made, along with a custom stainless 321 header I fab'ed up, 3 to collector, 3.5" the header back, 3, 3.5 inch Borla mufflers, and and dolphin tail section I added on, always wanted one. Any I have a shit load of pics, and a sound video, will post them slowly, as its late at night right now. So enjoy, dont be too hard on me, it not totally finished yet, and the small p-ports arent hooked up yet, and capped off.

Quick info on the setup-
C-series 20b, S5 n/a rotors, race rotor bearings, dynamic balanced rotating assembly, street-port side ports, small semi-ports machined into rotor housings, race port exhaust. 10lbs flywheel, rps 6-puck clutch. full custom intake, machined flange welded on, 55mm throttle bodies from tweak-it, I hand made the air box, full custom garage made header/ exhaust, Microtech Lt-12 computer, stock injectors, Lots of cutom made stuff I did, anodizing of most aluminum, I welded onto the autopower cage, painted by me as well, custom made motor mounts, and shit...blah blah balh, RG coilovers, Kazz LSD, jimlab bushings, ect. ect. ect. Bride seat, omp wheel, takata harness, ahh, too much to list. Check the pics!!

The machinist that made the p-ports and adapter plate ect. does great work, can do p-ports for $250 per housing. Contact me for details, John Holt did the aluminum welding, John holt race cars.

some more pic, I gotta alot

more

and more

more yet

moooore

yep

It feels to be about 340- 360 horsepower right now, dyno coming soon. I beat a 04 Z06 corvette, from 80-150, by about 8 car lengths, if that helps any. ALL MOTOR ROCKS!!

Looks really nice. I like the air box. When is the dyno day?

-destin

OH yeah, the motor is using a entirely stock oil pan, not a cut in it, just relocated the oil drain, barely cut the stock subframe for a little clearance. Using a FD S6 front cover, no factory 20b CAS!! Just drilled some holes for the front cover in the oil pan, took 5-minutes. Had to cut off the top pressure feed on the steering rack, relocated it to the side, allowed much lower mounting. relocated the alternator to where the a/c was. that was it, no bump steer, ( Very important in a drift/ road race car) all factory placement. Am I the first?? who knows.

Hopefully on tues or thursday next week is dyno time. Running on 89 octane is also nice. Oh yeah, it goes to 8,500rpms easily, still has ton of oil pressure, and pulls all the way.

Wow, so this is what you have been up to since I last seen yah. :D

Amazing, and a few other cool words. Can't wait to see it up close.....

what's it like in terms of street manners?

it looks great to me. i love turbos, but i'm a sucker for a nice N/A setup and this is definitely a NICE N/A setup. can't wait to see more pics and video.

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Great setup. That header looks fantastic. I'd like to hear some sound clips of it.
Where is the runner for the semi-p-port on the lower intake? Did you weld on some runners? I just didn't see any pics of how you did it.
You are certainly one up on the rest of us...especially with those custom fabbed cupholders :)

That's the coolest 20B header I've ever seen! It makes mine look like a pile of puke. :)

Very nice fab work. I have similar plans for something like this in the near future.

Streetablity is pretty nice, not full sideport nice, but it idles well, fire up hot or cold every time, still has good torque down low, for daily shifting, but it definitly wakes up at 4100 rpms.




The p-ports are just capped off by the intake flange, so they arent functioning yet. I still need to have some acuators machined up, and a second manifold made off the side. So I am getting all the downfalls of semi-p-port without the advantages. I'm still happy as hell with it.

Absolutely awesome! I love everything about your setup!

shoulda bought a v8! you suck at rotaries! cupholders are for grandmas!


anywayzzzzz...z... riding in this car is amazing. It's sort of weird that its the only FD I've ever been in, but I can tell everyone that it's absolutely nuts. I'll have video clips for everyone later tonight or tomorrow. (brap brap, fireball) also, the passenger seat in this car sucks.

very impressive!

cool to see someone doing a n/a 20b and semi-pp no less!

and besides, cup holders and a roll cage together just make me smile for some reason:)

Have you weighed it yet? I'm interested in the distribution. Great setup!

I made a little video of the car, like a minute and 30 seconds long, but i cant host it. I have a high quality version (350mb), and a low (very low) quality version (27mb), but both are too big for putfile. Anyone who can help me host this should PM me.

ah-ha! this video works! It's not of the highest quality, but you can hear the car and see it good enough. Also, the filming from inside the car sort of sucks, but when You're getting whipped back and forth like that in the stock leather seat with the stock seatbelt It's hard to keep the camera pointed straight. Oh well, enjoy!

http://media.putfile.com/LogansFDsmaller

that is one sweet project!! Great work!

thats wicked!! i wanna see some dyno numbers!

Wow.. was looking at the pics.. then I noticed OHIO plates!! Where in this crappy state are you located? I'd love to come down and take a look at that beast if you don't mind.

I want to know how you used the stock subframe??

I am in gahanna ohio, just by columbus. You can check it out anytime, just let me know when. Stock subframe was pretty easy, I welded motor mounts that placed them to the factory 13B placement, rewelded the powersteering pressure feed line to the side. relocated the alternator, and made a custom waterpump outlet. That was about it.

That's some nice work! I love seeing projects that are a little off the path.

You care about cupholders with an interior like that? lol

WOW!! Looks great!

Would you mind sharing your stock subframe trick?? Detail pics would be great! Also the alternator relocation.

Absoutely awsome work! Congrat on your hard work. I think 20B NA is the way to go.

I have some pics of the conversion, I'm not a guy to hold back secrets, especially all the thanks you get when you help out a fellow rotary guy.
Speaking of Thanks, NOPR helped alot of getting the footage, and editing it, and then posting it on here for all to see, THANKS MAN!!!!

requested pics

GtoRx7,

Thanks for the pics!! Once again, wonderful job on your car! Hope to see it in person one of these days... If I was still in Cincy, I would drive right over to see it.

I wanna see this one in person. :D

Soon *all* RX-7s in Ohio will be peripheral port :D

Two nights ago, SHM21284 was in town, and I let him rip on my car for a while (what are friends for?) On the freeway 270, we decieded to do a small top speed run, went very smoothly, and even with the windows down, we got to 176.8 MPH !!! New record for me and him. Still had alot left in it, so I would like to try again somtime and get 185+ in the future.

How was the cars stability?

Yeah I'm also curious how stable it was without some mega spoiler. Did you get new fans yet?

well basically, im still alive!!!
the car drives at 176.6 mph like it does at 100... super smooth, stuck to the ground, and HOLY SHIT IS IT FAST!!!! at that point, your passing others at over 100 mph.... hahaha and the wind is louder than the car.
i made a lane change, very very stable, and went over some expansion joints on a bridge (bump) and there were no problems there.
keep in mind, the car is probably 2 inches lower, which creates plenty of downforce (less air moving under the car creates a vacuum, sucking the car down--- learned that on discovery channel).
Oh yeah, the car drifts fucking sweet, and Logan, your fab work kicks ass!!!!

There's an article on one of the magazines (car & driver maybe?) that just recently did a one mile acceleration test and one of the race cars supposedly is designed with so much down force that it could actually be driven upside down at speeds over 150 mph. I was like :eek:

I heard that about the McLaren F1. And it's designed with just a little lip spoiler on the rear. The underbody aero is supposedly sucks the car to the ground.

GtoRx7, your car is awesome. I was thinking about doing a similar setup in an FC. I think I understand how you made the intake manifold, but I'm wondering where you found the setup. Because I've been looking for 13b ITB setups like that, and the only thing similar that I can find is the Racing Beat upper manifold which bolts to a stock LIM. I'd rather have it all in one manifold, curving over the top of the engine like your setup. I was just wondering what kind of manifolds you used to make your setup.

Also, I can't wait to see the dyno results, and maybe another video once the p-ports are working. :) I love the part where your car flies by on the highway, what a great sound!

Thanks for all the compliments, dyno is scheduled on thursday. So I will let you guys know how it turns out.

If I am ever anywhere near his car with my camera i can guarantee more videos will come. Im actually sort of scared of what its going to be like with p-ports working. as for the sound, the video really doesnt do it any justice.

Man, I would absolutley love to do this project to the FC, but now I have a good question: I get how you made the intake manifold work for the side ports, but I'm having trouble visualizing the intake ports for the semi-PPorts. Now I don't want you to take the whole intake off the car just to get a few pics, but if you have any or even the CAD drawing, that'd probably help! Oh, did I mention that this is by far the coolest 20B project I've seen, very original!

I am pulling the intake tonight to fix a few vaccum leaks in the injector area, so I will take a few shots.

Damn! very impressive :)

I've been thinking of maybe calling out a few "superior" Ls-1 powered rx-7's to see how mine fairs, all motor only cars of course. What do you guys think??
2.0 vs 5.7 hmmm
I know the 20b I'm running is lighter than a Ls-1, I wieghed it with intake, the long headers, and flywheel, and it came to 310lbs. Motor only was 250lbs. Not bad for so much cast iron, wish it was all aluminum!!

Damn, 310 lbs. That's awesome, does that include accessories too?

speeking of accessories, I like the idler pully and mount that replaced the top mounted alternator, as well as the mounting for it where the A/C used to be. Also, did you keep the P/S just because of the noseheavyness? Another also, what did you do for front suspension mods to help it all work?

Be carefull with those Ls1 Rx7's. Their still going to have a big torque advantage however from a roll is a different storey.