OK so we removed the spring completely from the BPV as in theory this would leave it completely open at idle...just to see if it made a difference and unfortunately my idle is still higher than normal...it's off by hair at 200-300 RPM so it appears that it may be the Throttle Chambers. Can't thunk of anything else that's gonna effect the Idle. Smoker shows no leaks and as per the code it's thrown there's three reasons this would occurr.

1) Vaccum Leak (ruled out through smoker test)

2) PCV- which no longer is an issue with this kit as it is replaced with the he breather filter that comes with Topz Kit

3) Throttle Chambers.

Just to make sure went ahead and placed the Stillen BPV on....Idle was still the same....1000 RPM or so....Did Idle Relearn via EcuTek and got "Test Failed Unable to complete." But noticed that the Idle dropped.down to 800-850....still a little high as the Nissan states Idle should be 750rpm give or take 50rpm...

Drove the car around til got temps up to opersting then did ECU reset before Idle Learning again. Got same message "Test Failed Idle Relearn Unsuccessful." RPM we back up to 1000-1100 RPM then P0507 code "Idle Air Control System RPM Higher than Expected."

Cleaned out my box.

If you are within 200-300 rpms then a tune will solve that problem. When i converted mine I was around 900 and after the tune it was spot on. Talk to your tuner or hit up Sebz.

Seb is the one tuning. We've been corresponding. He set the tune to be around 800...the thing that is stumping me is that it was at 800ish initially on my base tune....then Seb sent me a 2nd Map...flashed that one and that's when I got the high Idle at 1000-1100....thought might be tune so flashed back base map and same issue....RPM still at 1000-1100. Thought it was BPV but came to a dead end on that and no matter how many times Ive tried the Idle Learning just won't complete.

:wtf2:

You can do it on the car without Ecutek.


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This might be, and probably is, just my ignorance but the A/A kit uses a BOV near the intercooler does it not? Wouldn't it make more sense just to delete the Stillen BPV altogether? I'm probably missing something imperative to the answer here.

Is it maybe worth flashing the ECU with a back to stock tune from Seb then re-flashing with your current tune afterwards? Kind of like getting the microsoft blue screen of death. Just thinking out loud about the "test unable to complete" perhaps there is a software related reason for it. Probably not but sometimes it's worth trying one thing to rule it out.

If used with the a2a the BPV works the same way, it's just not adjustable. Setting the tune back to stock will not help anything. If Seb can't get it right there is something wrong on the car.


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I'm a bit unclear here. So he's using the Stillen BPV instead of an aftermarket BOV? I was under the impression all that BPV and related plumbing was turfed in the A/A setup..

Mine not tops kit but it's a2a and running the Stillen BPV. Sebs email to me today about the last log was "Wow, that looks great!", it works fine as long has you are under 11 psi.


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Both are nothing more than a valve that closes under pressure from a vacuum line and opens when the pressure goes away.


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Hmm I might have to hook that up temporarily. I need to get a charge pipe setup for a baseline tune just to drive the car over to the shop and get the new pipe made, and that will be easier than welding in (and wasting) a BOV flange.

I barely used any of the Stillen pieces, so you just have the BPV mounted to the flange on the underside of the Stillen charge pipe a foot away from the blower and connected it to vacuum. I'm assuming it can just be left vented to atmosphere instead of recirc - I wouldn't be able to anyhow as I don't have that 4way silicone boot hooked up Stillen provides.

OK....Idk Wth is going on....Lol...but warmed up car this morning to move her out of the garage and Idle is back to normal. I'm wondering if it's a harness issue. I will double check the harnesses as I recall some peopleh having issues with the Stillen Harness cables.

How long have you let it idle? Mine idles high for a few minutes until it warms up.


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Mine vents to atmosphere, no problem.


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I still waiting on my tunner to send me a base map
Apparently Ecutek have made changes to the firmware since he last tunned my car so he's waiting for somthing from them
He's one of the UK main gtr turners so don't do the 370z platform regular
Hoping to get tune sorted asap :(

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My first tuner was big into GTRs also and didn't know Zs, apparently they have nothing in common! He never had it close to the way Seb has it running.



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He did my last car it was great
So using him again
Pardon my ignorance I see you guys talk a lot about Seb

I'm guessing he works alone ?
Has a shop ?
What ?

I've noticed you all use him and rate him highly

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Til operating temps are reached......Cold start will always have a higher idle...Glad to report that after 2 days idle is back to normal.....Idk what happened...it appears to be a fluke that worked itself out...Double checked all the harnesses/cables..did a wiggle test and everything seems good. May have been the BPV...not sure as I still have the Stillen on
I will be trimming and putting the Turbosmart back.on...this is a personal preference as I don't care for the quality of the Stillen one. Once that's done I can get back to my tuning session with Seb .

Thank for all the input and help guys.

I am having a bit of a problem here I can not find a way to get the filter in place there is just no room to get it in there. Any advice would be great, Its a 2016 370z nimo.

Per the instructions, filter has to go on before you put the supercharger back in.

Now that I go back and look at it you are correct, it threw me off because right above it, it show it in place when it talks about the frame. Sorry.

What formula are you using to convert ur MAP (bar) reading to psi?QA

Top is correct and I'll add in that the filter will need to be slightly compressed to get it in place. It is a tight fit but it will go.

Top, any chance that a new intake filter can be done? I do remember seeing an installation that used a large pass through pipe that put the filter in front of the radiator. I will be exploring this in June when I get back to work on my Z. I am slammed right now and will be for months.

I will need to take the SC back off in order to get the volute clocked correctly so that will be a good time to explore another intake filter option.

Yeah. You can do that. But when i went from that design to the current i picked up power. I also made a "Hydra" intake that i had StillenZ84 try for me but he said it didn't make any more power. It utilized the stock intake boot with a filter off the front like my initial design but i drilled 1" holes in the coupler around the sides of the intake clamping area and placed an array of small breather filters in there. I lost all my pics of it though since my phone took a digger.

Swiss370Z posted these pictures on what his shop did for him. Looks like one 90mm pipe would need to be fabricated.

Think this would be worthwhile doing?

http://i1070.photobucket.com/albums/...psemsdwedv.jpg

Well, This is what i had on my car when i first made the kit in my garage. I did however have the flanges off the boot for the recirc and crankcase just plugged (like an idiot). If i would have thought about it earlier i would have put breather filters on there and let them also intake air which I think would have helped.

Im not saying to not try it. I try new things all the time and its the only way to make changes. Do I think you will make more power? not really...

Hey TopgunZ, I DM'd you on monday about this kit but haven't heard back from you at all. Definitely wanna look into getting this for my Z. Looks like a very well put together kit. Lots of good info reading through this thread.

Anybody having a hard time with those three hidden bolts in the Stillen manifold needs to invest in a cell phone lol :)
http://www.the370z.com/members/chase...fold-bolts.jpg

Works from the side too :tup:
http://www.the370z.com/members/chase...bolts-side.jpg

https://vimeo.com/199487007

Finally got my base map on and fired up

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Sounds nice and smooth....

Yeah it's all good on idle
Verry rich on throttle tho
Dropping it off for dyno next week :)

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Awesome!

I'm hoping to turn my key with a baseline tune tomorrow. Your video makes me want it NOW lol :)

Nice...Your Blockoff Plate looks "Pimped Out!" LOL

That's the end off my charge cooler I had it cut off and machined flat as a couple of holes were of on mine
So just chopped that to be different .
Then when I went to.get some plugs they only had blue lol

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OK guys running the Tial QRJ....I've ordered the adapter pipe from Ebay.....now my question is when ordering the Tial QRJ I understand I have to also get the 1.5psi spring and an inlet and outlet. Do any of you know which inlet and outlet I need to purchase? Is there anything else I would need?

This outlet in 1.5"
TiAL QRJ Boost Control Valve Hose Fittings

This inlet
TiAL QRJ Boost Control Valve 50mm Q/QR V-Band Adapter

And this clamp
TiAL Blow Off Valve: TiAL V-Band Clamp for TiAL Q and QR Blow Off Valves, Aluminum w/ Stainless Steel Hardware

Thnx alot Topz

Since it comes wirh a 1.5 spring suited for Suoerchargers I'm taking no adjustments need to be made on this (no trimming of spring etc) it's just a simple plug and play? With the exception of a Retune of course

No adjustment needed. Not even a retune.