Related to the SC kit, do you guys think 4.08 gears would be a problem? If so, what would you guys recommend, 3.9, 3.6?

The SC wont mind at all! Your tires might.

Will i have driving issues and eventually move to longer gears? I am contemplating adding a LSD, but don't want do do double labor if I am going to swap out for longer gears later on.

It will drive pretty much the same as it does right now, just with a lot more power when you go heavier in the throttle. If you intend to rebuild the differential anyway, you may as well wait until you drive it with the SC and decide if you want to keep your gears or not.

I'm using the 4.08 with the A to A upgrade and its hard not to spin the wheels in first and second, but once you get going they're great and great on a track.

An LSD is a must for a boosted Z. Even with the LSD, full throttle in first and second gear will smoke the rears and in third gear I get wheel spin above 6Krpm. You will also need to replace the stock rear end bushings with polys. They stock ones will come apart.

I'm running Bridgestone RE-11 305 rears which aren't the best for straight line traction but oh boy, they love the curves!

Hey Topz,

What is being done in regards to an install manual? Is there something out now that we can take a look at?

I currently ma running re-11s 285 in the rear. Planning to go to Michelin ps4s next and up to 305 if I boosted. I wanted to do the LSD along with SC install but don't want to do double labor if I have to switch to longer gears than my 4.08s I have now.

I can't comment on 4.08's in an automatic but I've got 4.08's with my manual and stock lsd. I've also got 305 Nitto NT05's. First gear is almost useless. Second thru fourth are great although it'll roast the tires in second gear and light up them up pretty good in third. It's scary without traction control on (and I very rarely use it) as the stock lsd is garbage and when it lights the tires in second, it's a handful. My next upgrade (very soon) is a Quaife lsd, that should straighten things out (literally). And yes, I'm keeping the 4.08's in.

When both tires are spinning, its not going to matter which LSD you have.

I'm not so sure the stock lsd is locking up properly as it really want's to kick the back end out. I haven't checked tire marks to verify if that's the case though.

In my experience, when the back end wants to fishtail while doing a straight forward power pull, that is the sign that both tires are spinning. Otherwise, if the diff opened and only one tire spins, it wont oversteer because the non-powered tire is still maintaining grip.

I know track guys dont care for the stock vlsd... but as far as power-on straight line traction... I have never had the vlsd open up on me and give me a 1 tire fire.

Yeah, you make a lot of sense. Maybe I need to get some more heat in those nt05's before I take the tc control off. :)

Hey guys!
Finally going to purchase the long-awaited A2A kit from TopgunZ tomorrow!

I'm super stoked about it.

Been waiting to purchase the A2A kit for so long now (ever since I read about it which was ... back in August / September of 2017)!!

Long wait but I know it will definitely be worth it!

Thanks Topz in advance!!!

So me being super excited about the kit and now that it can include the Tial upgrades for super cool sound, I decided to look up on YouTube to see how it sounds!

Check it out guys...this is really cool :D

https://www.youtube.com/watch?v=oKAZ4V66BE4

Tell me that sound with the stillen supercharger + Tial upgrade + A2A upgrade isn't cool!

This is the sound it makes anytime the throttle is closed or partially open, Even when just cruising? How do we make sure it doesn’t sound like that all the time?


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Good question I don't know xD
I'm assuming only when the supercharger pressurized air is being utilized since it recirculates the air..but then again I don't know.

Good question -- not sure!

The Tial is for more than just sound. It safeguards the system. Think about how much air it is producing at 7500 rpms and then the throttle bodies slam shut but the supercharger is still producing all that air the engine was ingesting...it has to go somewhere. The Tial allows it to escape properly without it surging back into the head unit causing premature bearing wear/failure.

To quiet it down you place a filter on it. There was a recent post and even a link for it in the A2A thread. I had done this to my car way back when I developed the kit and it works pretty good. If you want even quieter then you run a 1.5" hose from the Tial exhaust flange routed to inside the engine bay then place the filter on the end of that. The engine bay does a good job of trapping the sound in instead of purging it out directly off the bumper.

However, I dont think many guys are complaining about the sound and almost all the time guys PM me and tell me they love how this kit made their car sound versus the stillen setup.

Sorry, this slipped by me. I will have full instructions that will be emailed to the customers.

I replaced my RHFC’s with res TP’s but even with resonated test pipes, rasp is pretty bad. Might try to weld on resonators everywhere available on my exhaust. The tone of the RHFC’s I thought was perfect but they’re too nice to risk blowing out IMO

Are there any flex fuel kits for our car I should be thinking of utilizing? Gauges? Need recommendations now that I’m about to start hammering down a date for tune do you think I’m capable of install with enough time or go to mechanic? I have time not working right now and the most I’ve done is spark plugs and throttle bodies so haven’t got too deep on the car

Check out my build thread.
Has a ton of info regarding supercharger upgrades :)

http://www.the370z.com/forced-induct...ercharger.html

Shows costs, links and such for various accessories accompanying the Stille SC

Check out my thread and specifically, the Google Sheet. The price is the link.

Check under TUNE/GAUGES. I'm hoping the Innovate boost gauge I got will be all I need for Flex, but might also need the ECA-2 items listed. Phunk included, extra charge, a few AN fittings I think for hooking up the flex sensor. Seb said I need the ECA-2 stuff, don't know why. The gauges included the sensor and will output 0-5v analog needed by the ECU for E%

http://www.the370z.com/forced-induct...al-sc-kit.html

Man, I Soooooooooo want this kit!

How long does it take to ship out/receive

About a week to ship as long as I have some on hand. Intercooler usually takes up to two weeks.

*Update*

My tax money was used to purchase the A2A kit and it finally arrived in the mail!
Unfortunately I can't use it or install it yet until my custom engine block gets here which won't be for another ~2 months. LOL.

It will all be worth the wait though, :)

Just waiting on the Treadstone package & the QRJ Tial packages to arrive, and then I think I will be 100% ready to rebuild the broken car I currently have xD

Special thanks to TopgunZ amazing support for the 370z community and allowing others to share the joys and fun of his own custom made kit. Very cool of him :)

PS -- For those of you that don't have a Stillen Supercharger kit yet, or A2A kit but are thinking about getting one? DEFINITELY BUY HIS UPDATED KIT!
You save over $1.5k USD just by purchasing his kit and his kit is way better than the stock stillen kit lol.

Had I had a forum account and known about his kit before I purchased my SC kit, I would definitely have went this route.

Do eeeeeeeeeeeet You know you want to!

Yesssss...Aaron has definitely streamlined the process to get a complete working Supercharger kit....especially now with his partnership to source out the intake manifold from Stillen. This kit is way cheaper than what many of us paid to first buy the Stillen Kit then get the upgrade when it first came out. This is the way the kit should’ve been made from the beginning.

Much props to TopGunz for making it open to the community, even after he sold his kit and Z. He could’ve just keep it all to himself and many of us would still be dealing with the heat soak issues and other problems that come with the original A2W Stillen Kit. The A2W kit is good in California or if u need that CARB certification but it’s just hold back so much potential and is not made for warmer/hotter climates. I was seeking 30+WHP loss on back to back pulls on the dyno and Inconsistent times on the track with the original Stillen Kit. This upgrade has kept my dyno and track numbers consistent.

For sure! It's great to check in every now and then and as I have not been here in a few months it is great to see this kit being sold and mad props on getting hardware directly from Stillen! I once sent them a link to the build here and told them that this is what they should have been doing all along. They didn't respond but who knows maybe I helped it along in some way, lol. I too sold my Z recently an I am expecting a new Corvette in two weeks. Had I kept the Z, this would have been my upgrade!

Good luck with sales, Topgunz. 🏎🏎🏎

I have a few questions.

What is the reliability of the supercharger? Can I expect lots of trouble free miles before a rebuild is needed?

Are catch cans required for the cold weather condensation and resulting oily foam circulating in the system?

Is an oil cooler required? I don't expect to track the car, just daily driving... But it does get pretty warm here in SC during the summer.

Thanks...

@Kzonts

The reliability of the supercharger is really what you make of it. If you make it reliable, it will be reliable. If you don't, then it won't. You can stress the heck out of it and add smaller sized pulley combinations to go along with the 928 super vortech impeller & bearings upgrade if you want, or you can go with a safe pulley sized combination.
I don't have a catch can with the v3 trim, so I don't know much about that, since the v3 is a self-lubricating head unit but the other vortech head units are not self-lubricating so you may need one!

An oil cooler is definitely highly recommended if you want to run it safely, xD Even for just daily driving it's better safe than big disaster sorry route.

You can expect lots of free trouble miles before a rebuild is needed -- as long as you don't drive it like you stole it every day 24/7 then you should be perfectly fine.

Treat your car parts nicely and it will treat you the same ;)

Hey guys!

Wanted to confirm with everyone + TopgunZ that I received all 3 packages for the full A2A kit.
- Tial Blowoff Valve QRJ package
- Treadstone Package
- Custom A2A kit package

All came within about 14 days.
Now to play the waiting game until May-ish for putting a bunch of new things in my broken vehicle!
- Stage IV IPP VQ37 long block @ 11.0:1 CR
- TopgunZ full A2A kit including the Tial package
- New OEM coolant, New RP oil
- Replacing blown lower oil pan with a used one
- 4 Bar Omni Sensor
- 720hp treadstone intercooler
- High pressure radiator cap
- Wrapping intake tubes with gold reflective thermal tape
- Brand new tune from EcuTEK while throwing out current Stillen S/C kit tune out the window

It's going to be bad!!!

So TG, has Stillen offered you a job?

No, I'm CARB handicapped.

Picked up mine, waiting on Injectors (1050x), just ordered FI 34 row oil cooler (going to be the first documented one on G37 but should work fine), still need fuel pump and flex fuel and am still on fence about RFS. Oil cooler is out 2-3 weeks still. Going to start with 3” pulley. Want to enjoy it for a while before going crazy. Usually get 3-4k back at taxes but wife’s taxes set us back many thousands so I’ll go bigger when I feel like I have money again, or when I lose to a german car. Guy locally having a bad experience with a built block so I need some more faith in that process before I start challenging my motor to pop

:eek::iagree:

I pmed you in case you're interested in a full return fuel kit. Modified Fuel pump basket with ae340 fuel pump, full return kit, flex fuel sensor, modified fuel rail feeder tube to fit A2A setup. Sorry if my pm came out of nowhere.


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Whats the price on the CJM S1-SE return system you are willing to rid of?

I was thinking about holding off on boosting the z and grabbing a 2nd vehicle for a daily but im really thinking about getting this kit.
Im curious to what you guys would recommend need to be done to the motor to hold this power reliably.

Got most of my kit figured out and mostly mocked up yesterday, will finish when hangover wears off. Two questions that came up were—is there supposed to be a gasket under the clamp that holds the TiAl on to the T pipe? That seems like it’d leak—is there a part #? Also noticed the width of the 2.85” and 3” pulleys were slightly different, does that matter with which belt I use? Or I just imagine use whichever ribs is most level with the rest of the pulleys

The Tial does not need a gasket/o-ring.

In that picture you have the one stillen 9psi pulley (7rib) that goes on the serpentine and the 3.2" pulley (8rib) that goes on the supercharger. You need to put the 8 rib on the back of the head unit and the other one can be swapped with the 8psi pulley (silver) that came on the kit.