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-   -   Rob Dahm's overhyped underperforming turbo 4 rotor RX-7 build (https://www.rx7club.com/build-threads-292/rob-dahms-overhyped-underperforming-turbo-4-rotor-rx-7-build-1101249/)

Narfle 09-12-16 09:04 PM


Originally Posted by RZMotorsports (Post 12106076)
the are proven, that is what all the top rotaries setting world records are running. Cars like Loquito Killer, Major League, PAC ect are all running all billet or most of the parts are billet. congrats on the progress.

Are they streetable, or drag only? Pretty sure Rob wants to go further than the end of a long driveway.

rdahm 09-12-16 09:53 PM


Originally Posted by Narfle (Post 12106091)
Are they streetable, or drag only? Pretty sure Rob wants to go further than the end of a long driveway.

Lol exactly! Someone worded it this way and it fits my goals. I'm building a hypercar not a race car. For example, there are people with my trans clocking 30k miles.

I respect the big guys using billet motor parts but I've had two different respectable sources speak against it for more than drag racing. I sadly have no experience with all that shiny stuff.

Broke_A_Baller 09-13-16 09:55 AM

But Rob... It would look so dang cute. :p

rdahm 09-23-16 08:11 PM

Minor update

As I get closer to SEMA, the stress mounts Haha.

Started getting in my suspension mounts while I have my arms, spindles, etc machined. My other machinist went awol so I reached out and found several people willing to step in.

The car will definitely be making it to the event. Still a roller but a clear display of the insanity.

I am using corvette wheel hubs so my RX7 will no longer use the same bolt pattern. Basically starting an ls swap from the other end of the car lol. I told people on IG if they can guess what inspired the rather simple control arm design, they will know my secrets for the reveal. https://cimg0.ibsrv.net/gimg/www.rx7...bf7f9cc451.jpg
https://cimg0.ibsrv.net/gimg/www.rx7...9423050951.jpg


Cuzzynz 09-26-16 12:22 PM

beefy

rdahm 09-30-16 07:14 PM

https://cimg1.ibsrv.net/gimg/www.rx7...152edd5180.jpg

Control arms coming to life! Love CNC metal work! Anything is possible.

Rguy 09-30-16 10:36 PM

When this is all done...can you pull the motor and throw in an LS in there just for fun? Id love to see the reactions...

rdahm 10-05-16 07:56 PM

https://cimg0.ibsrv.net/gimg/www.rx7...811ba7d2f4.jpg

You guys get the first sneak peek here! Lower control arms almost finished. The machine shop put my logo in without my knowledge as a lightening pocket. I love it!

ZoomZoom 10-05-16 09:23 PM

I was expecting your countenance CNC machined into some billet.

LO7 10-05-16 10:07 PM

Rob DAHMINATION! Look fwd to seeing it all together.

rdahm 10-14-16 08:03 PM

https://cimg4.ibsrv.net/gimg/www.rx7...4995f83abf.jpg

https://cimg5.ibsrv.net/gimg/www.rx7...38ddf786f1.jpg

https://cimg6.ibsrv.net/gimg/www.rx7...3ebfc46892.jpg

Better late than never! Haha. The drivetrain and suspension being as experimental as it is has taken the most time to prepare. Finally time to mate it to the rx7. Or. What's left of it. My original time line has the car running in March. It might be sooner than that. But of course I wish it wasn't just a rolling concept car at Sema. Regardless, I'm so excited to share the results.

As you see the shock towers exiting the vehicle, you can see my qualification from standard classes in sanctioned events leaving as well. I'm perfectly okay with that.

stickmantijuana 10-15-16 11:24 AM

haha I've never seen the entire underbody cut out like that. you're basically building a new car from scratch with 4rotor. I guess the question is what are you actually keeping from the rx7? windshield? why not just start with a roll cage?

I think you should just buy a cnc machine. it isn't too expensive relatively speaking. a used one with good bits can be had for price of your transmission. :lol:

Narfle 10-15-16 02:40 PM


Originally Posted by stickmantijuana (Post 12115462)
I guess the question is what are you actually keeping from the rx7? windshield?

Windshield and roof line...

kindof like an IMSA car or a Pikes Peak car maybe?

Zepticon 10-15-16 07:58 PM


Originally Posted by rdahm (Post 12106106)
I'm building a hypercar not a race car.

I am really really not understanding the reasoning you went through before you decided to take a 25 years old cheap japanese sportscar from one of the smallest car makers with limited R&D budget, that was originaly made for < 300hp, and come out with plans like that...

But i love it :D
Its so insanely crazy that you cant do anything else than admire it.

Cuzzynz 10-17-16 03:20 PM

Tube it!!

rdahm 10-17-16 10:53 PM


Originally Posted by Cuzzynz (Post 12116026)
Tube it!!

I think thats a wonderful idea! haha.

And yes the windshield stays. The doors stay too. I want it to clearly look like a FD. Pay homage to the body lines ive stared at for 15 years. Then ill fuck it up with a wide body kit or something lol

Cuzzynz 10-20-16 06:52 AM

i dont think you will fuck it up, i think its gunna be sweet. more design and customer parts into it then most people.. but your also spending more then most to so.. yea should be cool

pjr 10-23-16 01:38 PM


Originally Posted by rdahm (Post 12116162)
I think thats a wonderful idea! haha. And yes the windshield stays. The doors stay too. I want it to clearly look like a FD. Pay homage to the body lines ive stared at for 15 years. Then ill fuck it up with a wide body kit or something lol

Don't f it up too bad! The coolness of this project will be making it look like a FD... Even if there is something more sinister under the skin.

Rguy 10-27-16 10:33 PM

Is this still gonna make SEMA?

rdahm 10-28-16 04:43 AM


Originally Posted by Rguy (Post 12119099)
Is this still gonna make SEMA?

There will be a hunk of metal at SEMA that resembles an rx7 and hopefully lives up to the insanely high expectations put on this build lol.

The things Abel and everyone here at FR Performance have done far exceed my vision. ​​​​The car was intended to be a roller at SEMA a year ago. I didn't realize how aggressive of a goal that was.

Some pics leaked on Facebook and while I am not happy with that, the response has been excellent. I'll treat it as a focus group haha

Moe Greene 10-31-16 01:38 AM

Rob, you and David need to coordinate some sort of meet up. Would love to come and check out both cars. Two 4 rotors in one place...:drool1::drool1::drool::drool:

7_rocket 11-01-16 02:23 PM

Saw the pics online. Very sinister

ptrhahn 11-01-16 02:32 PM

I applaud the effort—really ambitious and turning out well. Just my 2 cents, you need to lose the spoiler... it looks like it's off a '78 Trans Am. In fact the '78 Trans Am's is better sculpted. That Rocket Bunny thing looks homemade/tacked on. It's just not a modern feature befitting the vision for the build.

marky. 11-01-16 03:31 PM

AWD 4 rotor turbo WOW 👊Nice work

Zepticon 11-01-16 03:33 PM

I cant understand why you put the RX7 chassi on this, when you should be making a 787B replica! But its close to my wet dream tho, a 626 with AWD and a crossmounted 20B x)

ArmAnirx7 11-01-16 03:51 PM

Awesome job man! You are bringing your dream to life and thank you for sharing it with us.

pjr 11-01-16 05:54 PM

Pics swirling the web already. Dahm!

Spalato 11-01-16 06:47 PM

Amazing project. Can't wait for this kill some GTR-s out there! And I fully support you using the FD's chassis for this project.

Was there any clearence issues with the front differential shaft going to the gearbox? Considering it sits really close to the exhaust manifold? In the reveal video on your youtube channel I didn't see you guys fit the shaft to the diff yet

rdahm 11-02-16 04:50 AM

Got so much to share now that I can finally share everything. I wanted to keep quiet so people wouldn't crush me with unrealistic expectations from someone building a car without a race team etc. I will share much of my technical details and insanity. I have always been someone who enjoys sharing what I know. If someone takes my design and improves upon it, I would be honored. Had 3 major show stopping issues. I'll explain more soon

S2-13BT 11-02-16 11:11 PM

It looks great... I've been squinting at instagram trying to gleam details!!

I'll wait patiently for a huge update.

Turblown 11-03-16 11:09 AM

The best shots I have seen;

http://www.speedhunters.com/2016/11/...​​

Montego 11-03-16 11:25 AM


Originally Posted by rdahm (Post 12120667)
Got so much to share now that I can finally share everything. I wanted to keep quiet so people wouldn't crush me with unrealistic expectations from someone building a car without a race team etc. I will share much of my technical details and insanity. I have always been someone who enjoys sharing what I know. If someone takes my design and improves upon it, I would be honored. Had 3 major show stopping issues. I'll explain more soon


Come on Rob... Get to it... we want to know lol

rdahm 11-07-16 02:32 AM

Now that the initial fan fare has died down, we are already back to the garage working on the project. Did not expect that large of a response to a non running car.

I will be updating the project build as i go now that the loosely kept secret is officially out.

Just trying to live up to the hype and set some records. I shared my proof of concept with the world at SEMA and it got the attention of Mazda and others.

While the suspension is based off the Hoonicorn, thats where the similarities end. I adjusted the cantilever suspension with the guidance of JRI and Abel built an insane chassis that i think blows away the square tube frame found on the Hoonicorn.

What do you guys think of my approach? Definitely makes it more clear why im attacking half mile numbers first.

ZoomZoom 11-07-16 05:55 AM

Well the AWD makes sense if you seriously wanted to be able to put down the power. It will be interesting to see how a short wheelbase will deal with 200+ mph speeds. You will be competing with other AWD monster platforms. I am assuming that this much effort put into making it go fast will also be setting this car up with the potential for a lot more Caster than you would usually be able to obtain with an FD. You will need it to keep that car going straight at those speeds and with AWD adding in things like torque steer etc.

Looks like you have the right people and it will be purpose built for sure. I'm sure the Aero will be impressive as well.
You impressed folks because you came out the gate downplaying it. Good on you for being able to hold it all in knowing there was much more to the build. Most cars don't scare me but I think this one is a car I would rather see someone else push to its limits. If you plan to drive it yourself do you mind if I take out a life insurance policy on you?

Good luck with the project. I think we are all very impressed with this. This may just cement you in to Rotary Lore forever.

neit_jnf 11-07-16 07:50 AM

quaife and others offer front LSD's for R33.... just saying :)

stickmantijuana 11-07-16 08:05 AM

man I didn't see the AWD coming! I think it's a great idea. You're basically decupling the stock hp numbers for the chassis while other top V10 guys are just tripling or quadrupling them. There will be some challenges, and I hope your team can overcome them. I hope you beat some V10T and some V12T's at half mile. What we really hope is that you WIN, not just compete :nod: I will be there when you do. Best of luck.

t-von 11-07-16 08:45 AM

Like I said on the Youtube video, Bro you nailed it! All the weight is in between the axles with low center of gravity and now you have a way to put all that power down. All this while coming in at about 1,000lbs lighter than a GT-R. Insane!

pjr 11-07-16 09:23 AM

The level of chassis customization surprised me as well.... especially the AWD. I was really glad to see the car.... the visuals are great to this chassis. Smooth like the original with great likes, and the dark satin finish has just enough evil to it (Don't F it up with a bunch of stickers!).

MaczPayne 11-07-16 03:11 PM

Rob,

I heard through the grapevine that this might make an appearance at a SCAR event when it's done?

:giddy:

ivegonemad 11-08-16 09:33 PM


Originally Posted by MaczPayne (Post 12122435)
Rob,

I heard through the grapevine that this might make an appearance at a SCAR event when it's done?

:giddy:

lmfao i hope so!

Syscrush 01-16-17 03:19 PM

My feelings about what I've seen so far of this build:

http://s2.quickmeme.com/img/f5/f56df...b4cf525f7f.jpg

:)

Good luck with the build. Lots of us are watching with interest. Take your time and enjoy it!

Montego 01-17-17 12:01 PM


Originally Posted by rdahm (Post 12120667)
Got so much to share now that I can finally share everything. I wanted to keep quiet so people wouldn't crush me with unrealistic expectations from someone building a car without a race team etc. I will share much of my technical details and insanity. I have always been someone who enjoys sharing what I know. If someone takes my design and improves upon it, I would be honored. Had 3 major show stopping issues. I'll explain more soon


Apparently Rob and superdan50 attended the school of "soon" lol

MattGold 01-18-17 09:42 AM

1 Attachment(s)

Originally Posted by Montego (Post 12142479)
Apparently Rob and superdan50 attended the school of "soon" lol

http://gifrific.com/wp-content/uploa...Is-The-End.gif

lol
Attachment 752045

Montego 01-18-17 08:27 PM

Lol

MaczPayne 01-18-17 10:10 PM

lol

Craze8 01-23-17 08:21 PM

Soon, soon, everyone says soon...

rdahm 01-24-17 01:05 AM


Originally Posted by Montego (Post 12142479)
Apparently Rob and superdan50 attended the school of "soon" lol

hahaha im really bad at that. But this time its not exactly my hangup. I caught the attention of some big names and ive been in talks with a variety of organizations. The build videos/content is part of the conversation.

SEMA was overwhelming. Far beyond the expected response. We did a media impact report and as you can imagine it was in the millions of impressions.

Building the car to break real records gets the attention of companies beyond my realm of expertise. But that was my goal. Build something insane, but with purpose.

The only downside is my initial rough estimates are about half of what it will currently take to finish the project. Ive funded the vast majority of it myself, but i would be foolish pass up cross promotion. My close friends and most of the people online suggest not selling the 3 rotor to help fund the 4 in the mean time. It was part of my original plan, but i made it through sema over budget and without selling it.

I have a couple massive announcements, but while they are badass, im just interested in finishing the build properly without compromise.

RGHTBrainDesign 01-25-17 10:40 AM


Originally Posted by rdahm (Post 12144587)
hahaha im really bad at that. But this time its not exactly my hangup. I caught the attention of some big names and ive been in talks with a variety of organizations. The build videos/content is part of the conversation.

SEMA was overwhelming. Far beyond the expected response. We did a media impact report and as you can imagine it was in the millions of impressions.

Building the car to break real records gets the attention of companies beyond my realm of expertise. But that was my goal. Build something insane, but with purpose.

The only downside is my initial rough estimates are about half of what it will currently take to finish the project. Ive funded the vast majority of it myself, but i would be foolish pass up cross promotion. My close friends and most of the people online suggest not selling the 3 rotor to help fund the 4 in the mean time. It was part of my original plan, but i made it through sema over budget and without selling it.

I have a couple massive announcements, but while they are badass, im just interested in finishing the build properly without compromise.

I'm so glad to still be an asshole so no one wants to sponsor me. :lol:

I'm showcasing my technical abilities with the FB to the point of obsession. A lot has changed, mostly for the better. Just stay true to yourself. You're facing one hell of an obstacle, keep your head up.

As far as the chassis design goes, I can show you comparisons from an old company (comparing various chassis design types - square tube, multi-round tube, large round tube) and pretty much agree with you on the Hoonicorn. That's one area where they cut time/cost. Sure as hell a lot easier to make them and inspect damages on a square tube when your driver stuffs it into a wall (inevitable).

Narfle 01-25-17 05:27 PM


Originally Posted by rdahm (Post 12144587)
hahaha im really bad at that. But this time its not exactly my hangup. I caught the attention of some big names and ive been in talks with a variety of organizations. The build videos/content is part of the conversation.

SEMA was overwhelming. Far beyond the expected response. We did a media impact report and as you can imagine it was in the millions of impressions.

Building the car to break real records gets the attention of companies beyond my realm of expertise. But that was my goal. Build something insane, but with purpose.

The only downside is my initial rough estimates are about half of what it will currently take to finish the project. Ive funded the vast majority of it myself, but i would be foolish pass up cross promotion. My close friends and most of the people online suggest not selling the 3 rotor to help fund the 4 in the mean time. It was part of my original plan, but i made it through sema over budget and without selling it.

I have a couple massive announcements, but while they are badass, im just interested in finishing the build properly without compromise.

TFW "sponsor" and "without compromise" in the same story.

kelldog44 01-29-17 01:34 PM

Just got caught up and saw the build. Car is looking stellur, especially love the wide body look on the rear fenders. What color of grey is the car?


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