Supercharging in Cali

KarlKFI

You mean just how they come from KW? I don't know. The box was delivered to the shop.

I do know I had him explicitly keep the stock nismo ride height, since I already have enough trouble scrapping the front lip and like the pre-lowered stance as-is. He mentioned the stock KW pre-loaded height was actually lower than the nismo suspension, so he had to open them up a bit.

I put 1800 miles on them on my road trip. So I can definitely say they're noticeably and substantially better than the nismo suspension. They take rough roads much smoother without seeming any less solid in the corners.

I suspect most of that comes from higher quality engineering and an external reservoir that allows for more travel, so the pressure can be lower without bottoming out as easily. But I'm not exactly a suspension expert.

redondoaveb

Yeah, I meant how they come from KW. I think they set them around the midway point. Now you need to get a Hotchkis front sway bar.

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

Quicksilvers

If you are considering exhaust in CA you have few options Stillen and Nismo exhaust are both carb legal in CA. If you are set on the Stillen supercharger kit great choice but I would not run the Stillen tune for too long as it has been reported to cause a lean condition and can put the longevity of your VQ37HR engines life in jeopardy get your Z professionally tuned as soon as possible after going forced induction. Definitely contact Topgunz about purchasing the A2A air to air intercooler set up or make plans to install a air to air intercooler set up it’s a much better choice as the air to water set up is inefficient. Since you are located in Northern CA look into Z Car Garage as they are not too far from you. You should speak with your tuner to see what tuning software they use and recommend. ECUTek tuning would be my first choice.

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Mr. Clean

redondoaveb

All catback exhausts are CARB legal in California.

Replacement Parts are aftermarket parts that CARB considers to be functionally equivalent to the stock part they are intended to replace, and therefore would not impact the emissions from these vehicles. These parts are appropriate for sale and use on automobiles used on or off the public highways. For aftermarket exhaust systems and related parts, here are two applicable scenarios:

(a) If the automobiles stock exhaust system does not contain a catalytic converter, then an aftermarket exhaust part is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system, such as oxygen sensors.

(b) If the automobiles stock exhaust system contains a catalytic converter in the manifold section of the stock exhaust system, then an aftermarket muffler positioned downstream from the catalytic converter (i.e. cat-back) is a replacement part as long as the part does not remove or replace any emission control equipment originally attached to the stock exhaust system.

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

KarlKFI

Yeah, I've been talking to Rob @ Z Car Garage. He did my suspension.

It sounds like an aftermarket tune is desirable regardless, which is kind of a shame from a technically legal standpoint, but it doesn't sound like California smog checks require validating the tune. I've read horror stories from other states rejecting tunes.

redondoaveb

As long as your car isn't showing codes and all monitors are clear it'll pass smog with a tune.

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs

Quicksilvers

As long as you do not have a cel on and your emissions control components are all working properly you will pass the smog test in CA with a custom tune that will not be an issue. As for the sway bars the best advice here would be to do a search and purchase the sway bar/s that best match how you plan on running your Z. Also depending on your climate and what your goals are with your Z I have seen a lot of guys get away with doing a 25 row oil cooler but, don’t be afraid to go bigger on the oil cooler is what a lot of the people here will tell you 34+ row oil cooler if you plan to track your Z.

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Mr. Clean

ByThaBay

Hey guys just wanted to let everyone know that the EAC twin turbo kit for the VQ37 has received carb approval as of March 6th, 2023. The kit is now another option for those seeking to boost their 3.7 in all 50 states. The carb number is D-873

KarlKFI

Are they better than the stock nismo sway bars?

redondoaveb

Definitely. Most guys just update the front bar and keep the stock rear bar. There are a few threads on here about the Hotchkis sway bar.

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Fast Intentions "Stage Seb" twin turbo #098- Specialty Z/Tial-Xonarotor/CJM/Ecutek/HKS/KW/SPL/Hotchkis/Rohana/Toyo
750whp/700ft.lbs