Rotary Extreme Twin Turbo Track V-mount Kit - Preliminary Review
 

I had been having issues with keeping my lil monster's temps down with the abuse I was throwing her on track with an HKS S-Type Front Mount Intercooler (completely engulfs the main air inlet) and Fluidyne Radiator. Come to find out in the install of the new kit, a majority of this may have been due to hacked fan wires. Regardless, doing track days with several hot laps followed by even more cool down laps felt like a big waste of money, versus one warm up lap, reliable hot laps, then a cool down lap.

After a series of lackluster track days in 2010, my FD took the back seat while I became embedded in my new professional endeavors. Fast forward to the fall of 2011, where I was sick of my RX-7 playing a role as an oversized matchbox garage queen, and decided it was time to put some focus back on her. Priority number one: get those water temps down!

I had been talking with Ben at Rotary Extreme about some ideas and how I wanted a v-mount kit, but wanted something a little bigger than his twin turbo kit. He was all about it and proposed some ideas for updating his Track/Togue kit with twins. To throw a monkey wrench in on him, I also wanted to retain my HKS RS kit. To him, this would not be a problem at all.

I let the idea of going with a custom kit settle in, and in the interim, GReddy's kit became more relevant in the community. I went back and forth on GReddy's kit and what Ben had proposed for a custom kit. After realizing Ben's kit fit all my needs perfectly, lusting over Rotary Extreme kits for over half a decade, and seeing the awesome kits Ben was pumping out, I decided to go with RE over GReddy.

After unpacking it and installing it, I am absolutely happy with the decision to go with Rotary Extreme. I have a great amount of respect for Horacio Pagani, a great appreciation of form beautifully intertwined with function (see Zonda R, Revolution RX-7, or even the FD3S out of the box for reference). Upon arrival, I thought the kit could have fit in just as easily hung up in my office as it would in my engine bay.

As for the kit itself, it is a soup to nuts complete kit. I don't envy the work he had to do to build a complete custom kit on his car, ship it to the east coast, and hope it worked out perfectly on another FD. Installation went relatively well, with Ben being very responsive to offering pointers and help along the way. Being 80 minutes from where Mia's garaged, it took us several weekends working around mine and my friends schedule to get it done; but alas, it's complete!

I will have a full review on response after I get some more seat time.

Please mind the dirty engine bay. I pretty much buttoned up the kit, took some pictures, and had to head back to Providence. Actually - after several months of sitting, the whole car needs a thorough detailing.

Big thanks to Ben and Mark, Adam, Brian, and Tony with the help on install. And my Polish Princess for her patience with my series of weekends away.

What do you guys think?

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Looks very nice. Im looking to buy his V mount setup when I start getting into heavy power mods. He's local to me too.

Id like to add that I made this kit work with the HKS intake pipes so you can keep all youll emisions. The primary turbo HKS filter can be retained but you have to get creative to plumb the smog pump in. Also take a look at that ps cooler on the driver side behind the IC !!!.

With my intakes for this kit, all emmsions can be retained. All vacum lines are retained. A/C works with this kit.

I worked hard on this project so that if you know someone or smog, you only need a deal on the visual, as long as you have your cats it will pass emmisions.

On my intakes, they also end up where the HKS ones are.

The kit is pricey, but worth it. I only recommend my intakes or HKS because I know they will work.

Thanks or the props ZumSpeedRX7.

More products comming in the future.

Ben

Ohh im in love!

Nice job Ben. Rotary Extreme V-mounts kits have always been the best on the market. Even better than the JDM kits I've seen and handled in person. Pics just don't do justice to everything included in the kit - brackets, mounting, fit and finish.

Looks great. LOVE the idea of it on twins

Yes, I did put love into this kit. I really enjoyed making it. It was such a challange to make it work with everything. I spent alot of personal time and money on so many different designs, custom cnc'd pieces, little changes here and there, thought I had one part right then realized it conflicted with something else. But I finally completed a functional and presentable track ready kit for the twins.

This is def the kit that will go on my own car !!!


I am doing an install on another car with this kit with my intakes and I will put that on my site. But I will respect this thread and not jack it anymore...lol

This kit is bad ass, not cuz I made it, but it really turned out pimpin... hahahaha

Great kit. I got my oil cooler kit from Rotary Extreme, very pleased with it.

No worries, Ben. You made the kit, all I did was install it.

+1

My kit continues to perform flawlessly. Intake and water temps... a NON-ISSUE :D

No info on your site?

Well, Im waiting for driver feed back to oficially put it on the market. I am also waiting to put it on my site until I finish an install with everything fully plumbed in.

I need more feed back before I offer it on my site.

Send me one, and I'll get you feedback right quick like.

The kit looks amazing!

I believe I took my last order a few weeks ago.

I am not taking any more orders on any vmounts untill all current one are done.

So I would say I'll be ready to take orders again in about 4 months.

If you really want one I would be willing to take one more order before I close for a while.

I am extremely backed up.

:icon_tup: for a well built kit.

very nice kit , this is exactly what i want!!

me too!!!!!

Is this kit for sequential or non-seq turbos?

I'm assuming that if its for sequential, you still have to use the rear 1/2 of the Y-pipe (the part with the flapper & CRV).

Any pics of it with the intake pipes removed?

You can use it for both set-up.


But seriously, a small single turbo is better then non-seq.

Yes I have 2 cnc'd pieces, one that goes to the rear 1/2 of the y-pipe and the other to bolt straight to the pri turbo outlet. The piece that goes to the pri turbo also bolts directly to the 2nd turbo outlet so you can eliminate the 2nd turbo y-pipe and crv.

This kit allows you to retain all emisions, you just need a hook up on visual.

I really do not want to release detailed pics due to reverse engineers. I reserve those pics for customers. But I can not stop anyone else from posting pics...lol


Ben

I've taken the turbos off enough times to know how they work, so I think I have a pretty good idea of how the setup mates up to the twins. Looks like a very nice kit.

LOL not looking to reverse-engineer your kit, was just wondering. I've already trashed 3 sets of twins on this car & going single now.

I don't want to sound like its all super secret, it really isnt. I just want to have it on my site after I do an install and I would like some driver feed back first.

Then I will be more then happy to share with the world. I dont know if I will need to make a change here or there. The install is very involved. I just want to make sure that when I flood the forum with photos with official release pics from me that the photos include the final production version.

I would like to make sure that I built a great product and that it performs as designed. I know the idea will be copied once the results are in if there is really that much of a difference. I dont mind if regular people copy the idea. What I dont want is for some other manf to copy it and put their name on it for resale. I guess I just want whats best for my company. Recognition that Rotary Extreme made this kit first.

I do like the fact that Greddy continues to offer stuff for the 3rd gen and I like their vmount too. But I offer more with my kit. I am also 24 hr tech support for my products, I'm just a phone call away...lol

ZumSpeedRX-7 did take some really cool pics of the parts when the kit arrived.

ZumSpeedRX-7, can you post those.

Ben

Sure thing.

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GReddy elbow and HKS BOV flange were extra.

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Pretty damn complete kit. It came with two comprehensive write ups on install, but we still had to reach out to Ben along the way (I took the lead on the project, and well, I sit in an office for a living and am not entirely mechanically inclined - about damn time to start learning!). Ben - I owe you at least a drink for all the effort you put in after it left your hands. Honestly, I appreciate it!


I will finally get the chance for some much needed seat time this weekend. I'll post up a full review after, as well as some cleaned up engine bay pictures.

Thanks bro!!!

1. did your radiator arrive with those fins bent?

2. For everyone who is wondering: that big black cooler is the PS cooler that comes with the kit to replace the s-line. Yes the top line is purposely bent to assit with the 45 that screw onto that to clear the line. Everything is included for the swap.

3. You can see the ss tow hooks in the pic.

4. There is one blue elbow that should be black, the manufacture ran out of black. I did not surprise him with a blue elbow.

5. The two bottom pieces in the middle under 2 45 degree pipes are the key pieces in the kit and they come pre-fitted with nipples for the vacuum lines.


So as you can see, this kit is no joke. You really get what you pay for.

Ben

im confused on how your intakes are set up. i would love to buy from rotary extreme and i like the looks of this setup but i just want to know what intake craziness you got going on. i cant wrap my head around it cause i want to keep my twin turbs

They are set-up just like the HKS ones, just with KN filters, all emmsions are plumbed into the intakes. If you removed you emisions The intakes will be a little less.

The kit is 2700 no intakes

Intakes 250 no emisions

Intakes 300 with emisions

Ben

+1. Looks like a clean well thought out kit. :icon_tup:

Does this kit retain the flapper and crv? What is the net-net of ditching those bits, if this kit doesn't keep them?

The kit is designed to use the flapper and crv.

If by chance you want to run non seq you can eliminate that whole piece with my elimination elbow. It will cost 80 more for the kit because I will have to use an additional cnc piece and configure it that way.

Here are some clean(er?) engine bay pictures. A friend and I put over 100 miles on her today. Too tired right now for a full write up, that will be forthcoming. What I can say now is that the future cliff notes will read that this kit is awesome!

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Looks very nice! Being able to almost blindly put together a kit for a car with that little space to work with shows how well put together the RE kits are .

Well Thank you but I wouldnt say blindly.

I already had the kit done on paper and all my R&D done. I was just going to build it when I had the time. But since ZumSpeedRX7 was willing to take the risk and be the first one to test it I built it for him. The turbo side piping was going to be a little different but when he said he wanted to keep his HKS filters, that was the real hard part. Luckily I have a HKS laying around. I redesigned the turbo side just for those filters. But it was a blessing in disguise, I like how it sits now and my intake kit is the same as the HKS, just with K&N's on the end. I do have an RX7 so that was my jig.

I built the kit on my car, then cleaned it up and shipped it off to him.

But putting the concept of the kit into a working product was the tricky part.
Also I retained all emissions and vacuum line set-up. It is an intensive install, but worth it.

I am at that point to where I fee comfortable in my work with VM kits.

After all, I have 3 for the FC and 4 for the FD... hahahaha

I have a kit for what ever your goal is.

Ben

wow, I am so happy right now.

ZumSpeedRX7, thanks for working with me on this.

Full review here:


www.rx7club.com/showthread.php?t=1002753

Can you run this with the airpump? Looks close.

yes, i designed it with the airpump installed, it does squeeze the elbow a tad but it does not affect airflow.

Looks awesome Ben and Rick! I have several RE products on my car and all have always performed flawlessly.

Ben,
I've been looking at your vmount for a year now and think I'm ready to finally get one. Which one do you recommend for me? Right now I have a 12x12x3.5 SMIC with a GT3574 turbo and aquamist water injection. I'm putting out 422 RWHP @ 15psi. I'm planning on upgrading my fuel pump(Denso RP) to a Bosch 044 and tuning for 22psi so that should probably put me in the high 4's low 500 RWHP range. I'm pretty sure my current SMIC won't hack it at 22psi, and am leaning towards your monster VMIC setup, but I'd be interested to hear your recommendation.

I love the aqua mist set-up since Ive watched xlr-8 do his. I will be running this vmount with bnrs since the core is solid.

For you, if your car is going to spend most of its life on the track at 500whp consistently "after" being warmed up and on the go you can go monster.

Alot of people dyno the car from a cool point, but this is not reality at the track. I rate my vm to support a warmed up / hot car already running at the track. So naturally the car will make less power when its hot or the IC is heat soaked.

For this reason If your going to dyno high 4's to 500whp and your car is a street car and weekend warrior for fun and not competition the track vmount is better.

My track vmount is rated at around 600hp normal operating conditions from garrett and they have a note saying that under certain conditions it will support more as in a 1/4 mile drag race.

Anyways, this thread should show you that the single turbo track vmount should be good to go for your goal.

https://www.rx7club.com/build-threads-292/94-build-gt35r-re-vmount-whole-lot-more-now-pistons-932044/

It sounds like your set-up will be very similar to XLR-8

foot note
500 + whp full time track car = monster
500whp max street car/occasional track = track
when I say 500 max, that is 500 max at a safe level, NOT the max capability of the core.
I just like to be on the safe side and I usually recommend a vmount to be used at 70 to 80 percent capability.
Sorry if I sound a little jittered. I work graveyard and Im at the end of my shift, kinda tired…lol

Ben

Thanks for the quick response, that is indicative of your customer service. XLR8 does seem to be running a very similar setup. Our turbos are a little different with his being a ball bearing GT35R and mine being a larger hotside GT3574. I have also got a stage 3 IRP ported motor. It will be interesting to see how both these turbos will perform at 20+psi. I do like the larger surface area of the Track Kit which should provide great heat exchange properties while minimizing turbo lag. However, the Monster Kit allows more of a factor of safety at high boost. A little more laggy, but definitely breaths easier.
Since the Track kit is wider (20vs18in), can you still maintain the battery in the engine compartment?

Thank you, I designed all my kits to work with the battery kits.

you can keep your twins. i believe he has a kit.

Thanks Airwolf RX7, I missed this post. I'll pm him.

NP! Gotta keep you in business somehow! Cause i need you around definitely for awhile until i'm ready for my kit! :nod::nod::nod:

lol, dont worry im not going anywhere. i have a real job as my #1 income. RE will never go out of business.

Hoorah! :-)

That's good to hear. It'll probably be a couple years till I get my FD, and these cars aren't getting any younger.

https://sphotos-a.xx.fbcdn.net/hphot...08784450_n.jpg

I wanted to throw in my 2 cents.

Well put together kit, great fitment great cooling. Still getting the car back together and on the road but I can already tell a difference over my old SMIC and stock radiator. If you want to keep the stock twins and up the boost this is a great solution.

Also Ben was a pleasure to work with and produces great products.

Edit: Also you can see the intakes that come with the kit as I couldn't re-use my old ones.

ah cool, nice... too bad those KN filters are so damn fragile.

you have the splitter in the core on the turbo side, how is boost response.

thanks for your post!

Boost response seems damn near instantaneous but I did the V-mount, synaptic DV, and the upgraded solenoids at the same time, so its like a perfect storm of responsiveness mods.

Just remembered, the only fitment issue was that my current strut tower bar didn't clear the new secondary turbo intake pipe, but considering that the kit wasn't built on my car everything else went together great.