I'd love to believe this statement Gordon, but until someone stateside takes on the issue of 4 rotor eshaft production and brings the cost down considerably, I can't see this direction being more than a limited experiment in power potential. I hope I'm proven wrong. We'll see!

 

That is mostly correct yes. A 3 rotor is the most difficult due to 120 degree spacing, the rear two rotors act similar to one giant weight. 4 rotor is a tiny bit better, but two rotor is best. Our 4 rotor is the first of its kind :-)

 

We are working to solve some issues and drive down pricing, but its still 56k and up right now for 4 rotor

 

Is that because it has 5 rotors

 

Some one might say "5" is a significant number in our 4 rotor build.

 

This is amazing. Car looks amazing and probably drives even better. What did the whole project end up costing?

 

Not exactly sure, I used many resources to get parts cheaper than normal. Still adds up though

 

5 is a significant... oh ****, you guys did a center bearing too, didn't you!

 

Ryan Farrell tossed a go-pro into the infamous n/a 3-rotor two years ago at deals gap. Here is the awesome result, after his editing. I'm very happy to see her in the element and accurately convey what behind the wheel is like. At that state it was actually 400rwhp, since we had to rush to the event without a re-tune. Doesnt matter though, still plenty of fun


ENJOY

 

Gtorx7, that was a sick vid!

 

whoever put (that) music over that video is causing me to question my faith in humanity.

 

I don't know what all the fuss is about a 4 rotor, seems so easy to me.

New Beetle front and Old Beetle rear

500hp stock engine reliability AWD!

 

any updates on the 4 rotor logan?

 

Yeah it's getting closer to completion. This engine is anan incarnation of so many ideas I've always wanted to do. The amount of hand machining, fitting, Porting, cutting, tapping..... It's immense. One monster motor. I might hold out on any pics to gain attendance at a future event coming up :-)

 

Damn you How about those of us geographically challenged who will not be able to attend "said" event? Are you going to make us SUFFER.......

 

That's true. I will start a build thread soon :-)

 

Just reread the thread, really top notch Logan. Making me rethink my plans for the car just after I got it running on a single turbo REW. Too bad we can't always have our cake and eat it too... Looking forward to future updates. Keep up the amazing work.

PS. You should check out 7 Not Stock. Its the V8 guy's event, usually in Indy in the fall. I went and I'm a rotary guy and I still had a great time. In fact, I think all the rotary guys should attend at least once. You might be surprised how much us rotary freaks (to use their term) have in common with us. Ya know, different strokes for different folks.

 

Updates

 

Car turned into a 4 rotor.

Here you go....


https://www.rx7club.com/build-thread...nster-1037657/

 

Yeh I know that, just want to see the updates on the 3 rotor in the Nissan. See if they managed to crack 500hp with the latest mods

 

Logan can correct me if I am wrong, but I believe Nissan was sold and that 3 rotor is now going into another FD that is yet to be named.

 

I actually got the nissan back, I could not let it go. We do still have the new fd, which will also be getting a 3 rotor some day.

 

Logan, what gauge steel/aluminum did you use for your fuel cell rear bulkhead?

 

Long time thread revival...question for @GtoRx7. if he sees this. You mentioned the 20b cant rev out past 8900 RPM without extensive oil modifications. Is this still the case? Any new mods that can combat this? I'm following down your foot path of a basic streetport NA build and trying to make sure I have all my T's crossed before the motor goes back together.

I have a # series motor
Shimmed oil pressure regulator
9.7:1 rotors
Clearanced and balanced assembly
Large streetport
EFI Hardware ITBs
Going to try and replicate your exhaust manifold that was shared here.


Local machinist said I can dremel out the rough casting in the pump area to increase flow, besides that it gets expensive drilling and tapping the plates for additional oil.