Product: Rotary Extreme Twin Turbo Track V-mount kit



Anyone who puts their RX-7 through the paces knows that keeping the temps down is one of the main keys to success. I did not have much success on track with my front mount intercooler kit primarily due to the intercooler core retaining a majority of the air coming through the bumper and, unbeknownst to us, faulty fan wiring. If you aren't sure of the benefits of a v-mount intercooler, short and sweet, it splits the air flow between the radiator and intercooler, leaving you without having to compromise reliability for performance or vice versa.

I had been considering my options, looking into large stock mount and v-mount intercooler set ups. There are several great options out their, but between all of the kits manufactured by Chuck and Ben that I have been lusting over throughout the years, I knew whose kit I wanted. However, having seen their current 'off the shelf' twin turbo kit in person, I knew I wanted something a little larger than that.

I reached out to Ben at RE about my thoughts on what I wanted (twin turbo kit with a larger intercooler core similar to that of the Track kit that will work with my HKS Racing Suction kit) and where I wanted to go with my twin turbo kit (retain almost instant and efficient boost, reliability, and low temps,) seeing if a bespoke kit was possible. He was completely receptive to my ideas, having wanted to build something similar before I came to him. I thought of what he had in mind for a bit, and finally pulled the trigger on it.

Ben kept in touch throughout the entire development of the kit, double checking on my requested specifications. We had initially disagreed on certain things, but he took the time to help me fully understand where he was coming from, giving me the option of where I wanted my kit to go. Throughout the build, I would receive pictures of how it was coming along, with his excitement pouring through. He seemed just as amped about making it as I was about running it. I mean, if I could make something this badass, I'd be damn proud of it too!

Several months later, it arrived. Several months after that, we had it installed and road ready. My time constraints were what dragged the install out, as well as balancing several other pressing matters along the build.


Build Quality: 10 (out of 10)



Installation: 9 (out of 10)


















Performance: 9 (out of 10)

Price: 8 (out of 10)
Overall: 9 (out of 10)
Thanks Ben for working with me in bringing this idea to fruition. I am more than happy with the results!

Thanks to my good friends Mark, Brian, Adam, and Tony for help on install. Thanks to my fiance Heidi for her patience as I spent countless hours in the garage over several weekends.

Cheers!










For those wondering - that is a Carbing cooling panel with a custom carbon fiber extension.

 

Wow, fantastic write-up.

I think because the core is so big and dense it affects the pri turbo spool time but the set-up tames the temps so you can push hard all day long.

Sorry about the miss wired fan, I really hope that wasnt the real initial issue.

It was important for me though to make the transition from pri to sec turbo more predictable so that you can throttle steer through corners and step on it at corner exit. I like twins because you can feather the throttle and get better response in very twisty technical roads.

Thank you again for your support, kind words and honesty.

Ben

 

Here is an install I did with my intakes and full emissions plumed in. The customer wanted a satin finish. Wet sanding this kit is way harder then polishing it, but it looks cool.

Any track time yet.

 

Nice. $3k is not at all bad given the evident quality (I have some RE gear and it is top notch) and the custom aspect.

My Knight Sports v-mount install cost at least that much when the costs of AC and power steering components are factored in. (Write-up here.)

Good to see that the kit includes ducting and power steering cooling. Many of the expensive JDM kits ignore ducting and their approach to power steering involves hacking the stock lines.

Even though it was clearly not required for your purposes, it would be nice to see a kit with a real AC solution. The AC compatibility claims that v-mount vendors make are essentially meaningless. With enough custom work any v-mount is compatible with AC. A proper AC solution would include brackets to mount the condenser in the correct orientation, dryer mounting brackets if the stock ones can not be used, and custom AC hoses. (An additional complication is that US FDs have two AC systems with different fittings.)

Still, this may be the most complete FD kit out there.

 

Yes, we do have to bend the lines to make it work. You know the problem that alot of people do not know, the problem with making new lines is that year 93 cars had AC installed in the states and 94 up had it installed from japan. Making new lines requires us to get the associated male and female end for both designs. I have been able to locate 3 of the 4 fittings here in the states but I still need to find that 4rth one. But this will drive up the cost 200 minimum for A/C lines. You can see my kits condenser in the front bumper of the yellow car and its associated brackets. For the dryer, it fits with both my mini bat kit and my vmounts, you just have to massage one hole to rotate it a tad and press the lines down just a little. A bracket for this could work by lowering the whole unit about 3 inches. I have thought about all this. This is all something I would like to improve on. I have even considered providing a different condensor upgrade to work better with the kit so lines do not have to be bent. Using a different condensor will be alot easier but that will drive up cost too, but I would pay the extra money for an AC system with nice lines... who wouldnt. In all it would be like 300 to 400 for the whole "ideal" a/c set-up. But Greddy vm kit does have an adapter piece for one a/c line, I believe its shaped like an "S". I wonder if they sell it seperately.

Thanks for the props though, it is greatly appriciated. I am continuously trying to improve my kits.

The newest version of this kit is 3k with my intakes. So everything you need is included.

 

Ben, Im gonna be ordering one of these kits off of you soon for my single turbo build. This thread along with XLR8's build thread has pretty much made up my mind for me

 

great write up, awesome pictures!!!!

 

PM'd details on purchase options.

 

Nice review. Ben has great products.

 

Thanks, I appriciate it. Too bad im slow on getting stuff out though, but I want to make sure you guys get a great product.

 

Im kind of confused with the whole AC setup. Does this retain the AC? If so how much modifications does the AC need to still work?
Also with removing the y-pipe and runing seperate cooler pipes this removes the siquential system correct???

 

On my set-up.

I provide you with brackets that puts the condensor ontop of the radiator. You can see it in one of the pictures I posted in this thread on the yellow car. You can also see that the dryer sits in its factory location, you just massage one hole and swing it and push it down a tad. The lines need to be bent but I show you how to bend them in the instructions you get with the kit. They are very detailed insturctions. You will need to replace the orings on the lines you disconnect in your ac system. So yes, if you have seen my instruction or my kit in person on a kit with a/c you can see its really not hard at all. So yes it works with a/c, modification required are you must re-shape the lines-carefully. Dont be scared, just take your time...lol.


The sequential set-up is still retained. You only remove the pri turbo side of the y-pipe. I provide you with a cnc piece that goes to the 2nd turbo charge relief and both that cnc piece and the new pri turbo cnc piece come with nipples and vacum lines to go the old lines that went to the y-pipe. The 2nd turbo intake also has a pipe comming off of it to have the charge relief plumed back into the intake.

Everything is complete!

The hardest part will be bending the a/c lines, well the scariest part. Until new replacement lines can be fabricated, this is what we have to do.

Don't worry, it's all good.

Ben

 

Ben is da man. I definitely am saving up money for my Rotary Extreme Vmount soon :-D

 

Thanks for the kind words, Love your car too!!!!!!!

I really just want to make you guys happy with good parts. I really try.

 

The kit looks fantastic and really well engineered.

Any ideas on what kind of numbers you're looking at with this kit?

 

Is this a question for the OP or RE.

Are you talking about price numbers or HP numbers.

On my end I can tell you that I made the kit to support what ever The BNR twins can throw out. I read one guy made 452 whp, yes this kit will support that.

For pricing... too many options, pm me.

Questions for the OP, can you address the OP.

sorry Zum if I hogged your thread...lol

Ben

 

Sup ben, its dave from DNR. Howve you been lately? havent seen you for a while. Hope everything is great. Glad to see Rotary extreme doing good....

 

OH man, whats up Mr Honda God. Thanks for thethoughts. I miss swinging by, I have been so busy.... sooooo busy.

I'll swing by, but Im going to sanoma drift this weekend.

RE is doing good, I just cant build stuff fast enough.

I'll hit you up.

 

did you start drifting with the rx8 or did you go to support a customer?

 

do you still have my #? pm me if you dont. we'll catch up later...

 

RX8 second broken transmission...lol

stock tranny really cant handle to much abuse

its a great car for touge though