The potential challenges about making a Whipple fit, begs the question: If RJ MFG set up a poll to help them decide which way to go, why didn't they go with the majority of the respondents? Not to take anything away from those who want the Whipple, but it certainly looks like a lot more involved to get one to fit...with questionable aesthetic results...than a kit with an OEM look. I think if the poll represented the whole potential SC market, rather than a thread that by its very nature attracted Whipple enthusiasts because of its suggestion, you'd see the results skewed even further towards Rotrex.

Sounds to me like RFG was going to go Whipple anyway, and just wanted to see how many others out there might be willing to purchase if they offered it.

Just sayin'...

So if everyone voted "I don't want a supercharger", then they should have just given up then?

They explained that they wanted a challenge. Kudos to them for trailblazing. They have not ruled out doing two kits either.

I wouldn't knock them for not following the poll results. For how small of a sample size that is, that poll is worthless to them. It is just proof of interest, and both kits have enough interest at this point.

Plus, there are other centrifugal options on the market. There's no positive displacement option.

Correct, if you want a Rotrex kit Gamma is still selling them (thought a bit higher price than GTM but they do ship & fulfill orders).

In another thread, I was told that Stillen was basically the only choice...that the Rotrex kits were (even post-GTM) sold by questionable sellers. As everyone knows, Stillen requires extensive add-ons and tuning to make it safe.

I hope that RJ goes with another kit, but that would require double the R&D. Are they really going to invest that much into a niche market anyway?

Main point is to make the start kit cheaper and not make people buy stuff twice. Like a flash from RJM and then have to go buy uprev. Same with the injectors, if you keep the maps the same, no need to flash. This is just an intermediary step to allow the kit to pass smog. Then you get your tuning SW and injectors and get your HP. Remap the injectors for smog when you need it. That way you don't buy anything twice. You also then swap between smog and HP setup with just swapping tunes. You need to make the smog kit stand-alone so you can sell it as a CARB legal setup. Maybe you could do it where you do the above and swap a pulley. A pulley is cheap enough to buy twice. To get CARB I think you have to demonstrate reduced emissions.

And it's 2 hours to swap between SMOG and HP. A tune swap is a couple of seconds, a pulley swap should be doable in 2 hours.

First let me state that we will be looking to do a CARB kit with aftermarket injectors. As stated earlier we will need to use the shortest injectors possible (not the same length as stock) as well as integrated fuel rails in order to fit the largest intercooler core possible.

Secondly, the poll was a way for us to gauge interest in another kit on the market. the choice was and is ultimately ours to make. There are more factors than just the number of votes on the poll in the forum. we have received calls and messages from outside the forum in support of the kit including some shops. Also the count is separated by 6 votes at this time and isn't that far off. So as it stands we will be doing the whipple kit first and if people still want to see a rotrex kit we will look at doing one of those as well. But I will say this. You guys aren't going to want a rotrex after this is launched ;)

Thirdly, We have already started skinning a 350z HR hood onto a 370z hood as a fall back in case the unit looks like it wont fit. Also on another note we have designed a GT style hood that already has some of our employees thinking of selling their hoods for it. What we have designed is going to really impress a lot of you guys. Also remember we focus on quality parts and our prices reflect that. So keep that in mind if we have these hoods made they will be top notch and oem fitment.

As for those questioning our R&D costs and what we are investing into it is a business decision that the owner and partners have looked into and want to make. Trust us your gonna want this kit if your in the market for a SC'er, a stage 1 turbo kit and some stage 2 turbo kits... Also at the price point we are projecting your wallets are going to want it too. But there is a down side... your gonna be buying tires like a mother... hahaha

You'll probably need a CA test vehicle for your carb cert. Keep me in mind when the time comes!

I found this to be an interesting video on designing a kit.

https://youtu.be/X6pKKZ_piw8

That's a sweet manifold! Double heat exchangers and a twin screw all built in! Nice.

Harrop makes some good stuff sadly we can't invert the blower setup like the flat 4. Since we have a 60* motor space is extremely limited and after working with Bobby on some design ideas omg I am excited! There is a lot of new technology going into this kit. They have truly taken to heart the idea of making an innovative kit! The intercooler setup itself is insane using some great technology from mocal. Everything is being looked at from serviceability to performance! We are in for a major treat! I want to buy another Z just to build one of these myself!!!

Great the more I read this thread the more I want to wait for this kit. Oh BTW, RJM not sure if you answered this already but will you make a RHD compatible kit.

If you have a definite answer on that I will wait for this kit! :)

So you're saying this kit could be entered in the raffle drawing?

Lol we can dream can't we! They gave away $2k worth of product last year. They will probably do something along the same lines this year most likely.

By it's very nature it will be rhd compatible as well as awd.

We haven't decided on what will be in the raffle for 2017 but it will definitely be something you guys will want!

Roots or twin screw blower all the way. A2W IC with a nice big pump and double pass HE -- A2A is never going to cool as well as water, unless you are just doing constant laps.

I take it this would have a clutch style engagement set by TPS or would a bypass work with our TB's?

Either way, anyone enticed by the top end of a centrifugal blower or a turbo, keep in mind, if you want near instant pin-you-to-your-seat torque, you either need a bigger engine, properly sized twin turbo (will still lag), or a cut your hood Max Max style PD SC.

Are there any hoods out there with a bulge for a SC that would work? The 350Z hood for the Stillen SC maybe?

We won't go into water vs air being better, but any and all pd blowers have to be water.

Guys no need for that here. RJ MFG is doing A2W with either a double or triple pass heat exchanger.

3.7+2.3=6.0

Lol

Everyone crying about having an exposed blower or different hood for their Z :bowrofl:. Last time I checked Z owners have two vehicles but maybe that's just me. The woooshh of a turbo can only be bested by the hellacious whine of kenne bell blower IMO!! RJM keep on doing innovative things!!! Props!!!

I love the hood on the new 2017 zl1 camaro..i think something like that in full carbon would look really good

I would want reliability foremost.

I am going to have this car for a long time and I don't want it spending most of it's time in a shop.

This fear of breakdowns is the only thing keeping me from messing around with my engine. That, and money. :icon17:

That does look nice.

I don't mind this one either. I think I photo shopped that on a 370 for someone once.

http://i397.photobucket.com/albums/p...1.jpg~original

Found it.

http://www.the370z.com/attachments/n...d-6f085uif.jpg

I dunno...personally i would like that hood only if they lost the vents up the sides...but thats just my opinion

PD I prefer from owning them before and loving the low end boost.....but for packaging Rotrex...

Wondering about cost of this plus a hood...

Under 10gs.

I spoke with bobby tonight... it looks like they are also going to tackle our cooling system issues. During the initial concept designs they found some reasons why people are experiencing overheating issues. I won't go into details but let's just say that it's pretty ingenious and will help a lot of the track guys. Also stage one will be under $10k out the door. They have mentioned they are going to make a cooling system upgrade kit for resale as well.

Good news indeed!

I will keep you guys updated on any new info!

They are working to fit everything under the stock hood.

Thanks Bullitt!

As of right now we are still in the design phase. We have two cars we will be doing for Zdayz. One as a demo car and the other a client car.

The client is bringing us a stock motor Stillen kitted car. We will be doing a direct back to back comparison before pulling his car down. We already have his new built motor nearly done and we are just waiting on cams. Once we are done with the back to back (apples to apples) comparison his car will go under the knife with a new fuel system featuring our new surge tank capable of handling well into the quadruple digits power levels. The client is getting what we consider our stage 2 kit with all the supporting mods. This will be what most of you with low compression built motors can expect to achieve. We wont speculate on numbers but if this blower has anything to offer its massive amounts of power. Also of note this will be through a 7AT transmission.

Our demo car will be built along side the clients car and the plan is to have both of them be displayed at Zdayz 2017. The demo car will be our stage one kit on a stock block. when we do the comparison on the clients car we will be doing same psi as the stillen kit. so for all intents and purpose once we have results you will see our stage 1 versus the best stillen has to offer. As of right now we want to limit TQ to 400ftlbs but may raise that based on how the clients transmission holds up. since he is trading it in as a core for his new level10 bulletproof transmission we may push it more. This will all be seen the day of testing.

So stay tuned! We hope to have both cars by early January and begin the process.

Subscribed for updates :yum:

After further discussions with level ten we will be capping the TQ on the 7at transmission at 400ftlbs as that is where they have seen the most failures in gears 5,6 and 7 on the 7at. If we decide to go past that we will do pulls in 4th gear on both kits on the 7at. So please be aware if you see comparisons in 4th gear it is solely to ensure the transmission doesnt go out when we are pushing it this hard.

We will be partnering with Level ten to provide transmission upgrades for the 7at. Note each transmission is VIN locked. If you want to bulletproof your transmission at this time your transmission has to be sent in for a full upgrade. No core swaps will be available at this time.

Nice to know Level 10 will be working with you guys. I've been eyeing the FI myself, but it's awesome to see some more work being poured into the Z.

So you are limiting to 400 ftlb torque on a stock 7AT, and then you may increase the torque after it has been built by level 10, is that correct?

Just interested because I have been talking with Level 10 recently aswell. But since I am in Australia I cannot send my trans over to them and back, otherwise I could just buy a GTR in shipping costs lol.

But they have offered me a rebuild kit, hopefully that is all I need to be able to handle the extra torque from FI.

I think what they are saying is that they are only testing the stage 1 kit to 400ftlbs on the stock transmission to start and may start to push once they have a back to back against a full stolen setup

Very exited to see what happens with this kit. Always been more interested in a supercharger over a turbo, reliability and ease of install mostly I guess; but having not heard good things about reliability with the Stillen system, I never pulled the trigger on it. For me personally, simplicity of install is very important, and for my tastes, I would only be after a (fairly) conservative level of about 500whp, so I'm really interested in the stage 1 kit. Keep up the good work!

The guys at RJ MFG are working over the holidays to make this kit. I have already seen some cad models they are using and it looks promising. They are moving and changing the coolant tubes and lines that are external of the motor. It looks like the install is getting more in depth. Individuals and shops will be upgrading the coolant system to support NA to forced induction applications. This is a huge plus but at the cost of install difficulty for the avg diy guy. RJ MFG is working to make the kit installable without dropping the motor.

Sub'd