It has been proven, the Rotrex units have been used since the early days of the 370z, it went away went GTM failed & Sam passed away. Check the FI finished builds and you can see the GTM kits, just remember most of those are when we thought 500HP was max and the SC was the safe bet.

The C38R is the similar housing size of the GTM but turned up to 11, we have limited engine bay space so the larger Rotrex units are difficult to fit (GTM stage 2 tried but saw minimal improvements).

I guess I should have worded it differently. I should have said "big" power. Both my V3 Si and V2 Si made 680whp. I have confidence in Aaron and I don't think he would be developing the rotrex kit unless he knew of the capabilities. And Elmo said that he could have told me to wait. The problem is, I don't think he knew Aaron had a kit in development. I know Aaron well and he didn't even tell me what was in the works. Had I known, I may have dumped my Vortech kit and gone with the Rotrex but I decided to dump the Vortech and am going with FI tt's.

I think he meant that nobody has ran the C38R to see what it is capable of compared to the V3 Si which is used on 99% of the new supercharger builds.

Also, the older GTM rotrex kits were designed completely different from what we are doing here.

Correct!. It will make
Power

I will be curious how you are going to be ‘completely’ different, mounting a SC with a belt and running pipe in our engine bay is very limited. Even with most TT kits the design is fairly similar you really just get option between turbo type & intercooler. The big changes come in fuel delivery, tuning, and engine build.

I think the 350z guys got the C38R into a few builds and saw some fairly positive builds, I think with the 370z you either had the GTM kit already and not much sense in an upgrade or waiting to see if someone builds a new kit with Rotrex.

Overall this should do wonders for the 370z FI folks, now we have a real viable SC option with some modern updates, with plenty of TT, and of course BP for T.

The problem with ‘big numbers’ in a SC build is you won’t really see the same results as a TT build. The twin turbo kits are amazing and provide some great head room if you get into a built engine, where the SC kits can do solid numbers but once you start down the engine building route you realize a TT kit just gets you more.

My view, or opinion, was always the SC was a solid power plant and delivery for folks who did not want to get into the power race. You can get solid numbers and have an amazing car, but if you want to play at the top of the power scale you are better off investing in a TT kit (and of course the engine).

GTM used the C38-91 as a max blower. They mounted the SC down under the manifolds with the filter so close it would actually melt, meaning it would ingest a ton of heat. The improved version which moved the filter away took some harsh bends in order to do so which as we all know restricts power.

How many 350z guys can you show me that made the swap to a C38R-112? I know of one and he gained 5psi with the same belt setup and harsh charge piping. He was running a pulley setup that was initially designed around an 81 and not a 112. They designed their kits with looking stock before performance so they had to smash a small intercooler inbetween the factory crash bar and the radiator shroud so it is undersized for these newer power levels....etc..

The question here is what is considered "built motor" range? When I first bought my Z, 12 psi was considered the max amount of boost you could throw at it with it being safe. That was in 2014. Now we have guys pushing all sorts of numbers and the "whats safe" is very arbitrary. How long will it last? How hard do you drive it? What supporting mods do you have?..etc.
There are guys stating to make 800whp on the stock block.

That is not the point here. I am not introducing this kit to be the most powerful kit on the market. The point is that there will be a supercharger option which will be $6250 for a tuner kit that will make the most power out of the box available for our platforms and it has the ability to realize minimal loss if you prefer to run a filter. A lot of guys like superchargers (for numerous reasons) and this kit will just make sense compared to anything available for dollar per hp fun.

Most sensible guys would be happy with fully filtered air while still having 550+whp on a supercharger and having a reliable setup.

Right now there isnt a single supercharger kit on the market that can bring the VQ to its limits without stressing the supercharger by way overspinning it and without stressing the engine by running a turboguard, which filters nothing but a gigantic rock.

And of course there are numerous other benefits as described on the first post.

Actually, the terrible bends were part of the stage 1 kit, I had the original and it was a terrible design. The move away from that into a straighter pipe and the filter under the exhaust manifold was the compromise so higher boost to be reached. Not sure who has had a melted filter or intake issues but curious on that one, been running the 1.5 kit with the straighter pipe for many years with intake temps 5-8 above ambient in Texas summer with no issues.

Just like this forum I keep an eye on the 350z side and read up on all the builds I can find, not saying they were magical numbers made, just that the 350z guys got into the C38R already.

I never said you were producing this for high numbers, that was directed at another user here. I am happy to see another shot with a supercharger with the Rotrex because I think it provides the best power band for our car and real gains. The original response was with someone saying the 370z has not seen a Rotrex tested on this car, which it has for many builds with high success. Just as you said, in the early 2010 days 500whp was crazy high so the early SC folks hit 400-450whp and stopped and very few went after the high numbers until you brought a real kit (Stillen with A2A) to market.

Here is one instance of a melted filter which you replied to.
http://www.the370z.com/forced-induct...placement.html

Again, there is only one guy (that I have ever seen) that tried the C38R on the 350Z and he seen a 5.2psi gain on a pulley and intercooled system designed for a much smaller head unit. It was goatofrafin.

I am looking forward to your results.

Subscribed. Definitely interested. What do you think the timeframe will be for production?

We are planning to be on the Dyno next week. Then we will release it on our site. It will kind of depend on first come first serve basis at that point. I will update the site with expected ship dates as we go. I have a pretty good amount of parts showing up so I am hoping to minimize the waiting list.

I had to clean the kit I bought because there was melted filter in the housing. I've been thinking of using some form off heat shield or reflective tape or something to prevent it.

Facts....

Last time I checked, engines like cold air.

Can't wait Aaron! Thanks for continuing to develop your kit and looking forward to purchasing for my 40th birthday!

Soon!
http://www.the370z.com/members/topgu...-184342702.jpg

Its amazing it took so long for someone to come up with this solution. The key is the jack shaft pulley. Where can these be pulleys be sourced?

Did this kit ever hit the rollers??

Still perfecting the casted aluminum section. I thought this would have been done a couple of weeks ago. I am now scheduled for next week.

Question, would the blower fit on a gtm stage 2 kit

It would fit, but that system is not designed for the C38R. The pulley system is undersized (belt slip) and the intercooler is WAY undersized. However, it would still most likely make more power than the C38-92.

Now Iv just got to convince my wife why I need to spend more money on the car

Dyno is happening Wednesday at 4pm central. We only have enough time for tuning E85 so we wont have 93 numbers until later. We cant road tune due to outside temperatures. The extreme summer performance tires just cant handle the power when they harden up at 40*F.

maaaan i'm dying to see some 93 oct. numbers

The excitement is real!

Was just plotting my MAP vs MAF (sd) data and it looks like if you spin it all the way, should be making close to 20psi of boost, maybe conservatively 16-17 at worst case? So 700whp easily in the scope. :happydance:

All educated guessing of course. Can't wait until Wednesday!

We all know you have some secret squirrel under the hood that chirps when you aren’t in boost. Time to stick a silencer on your squirrel and turn up the wick a bit. :-)

Will be ordering this as soon as it’s available! Can I fire a deposit and reserve a spot? Haha

Tell her the alternator superchargers the battery so it won’t die within the next 15 years. All sports cars have it now. It’s organic

i got to get me this kit lol

We have good news and bad news. The bad news is we weren't able to finish the tune because our deskey dongle literally just quit communicating with the software. It just started saying unable to connect. Eugene is shipping a new one 2 day air so we will be back on the dyno Monday evening.

The good news is the preliminary numbers are exceeding our expectations. This kit is straight bad ***!!! We are going to be deep into the built motor arena if you want to send it!

When will the kit be on the site for preorder?

I'll still place them on my site tomorrow since now I know this thing is going to way outperform anything else out there. I just won't have an actual dyno on the listing.

Oh I forgot. Zero BOV flutter!! :happydance:

Awesome, will def preorder! :ughdance:

Wow, this is exciting. I run the v1 A-A kit on my 350z nismo and I always felt that there needed to be more lower end power. I made 450wHP at 12psi, 93 octane on a conservative tune, with the K&N filter still on. (running stock cats on a motordyne TDX2)

I recently picked up a 14' 370z nismo and like redondo, I planned to go FI TT's with a built bottom end. I'll have to watch this progress.

are you able to reveal which tuner(s) are you working with that will support this kit?

(i've been using Seb for the v1 kit on my 350)

When will pics of the fully developed kit, with the air filter, be available?

Eugene Turkov from infinity auto care