Ask Sarah:  We have a stock 350Z N/A engine.  Can we add a turbo without messing with the ECU if we want to run 8 psi boost?  A 1 or 2 bar MAP? By Sarah Forst From the scope of the question, I think you might need to do a little more research and learn the basics of engine management and how modern fuel injection systems work.  READ ON... Got a Tech Question?  Email Sarah at asksarah@motoiq.com

 

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A Look Inside, Technosquare's Ultimate Street Car Turbo Nissan VQ35DE

By Mike Kojima

Cheston Chiu’s turbo Nissan 350Z is well known in the Nissan Z community as being a fast well rounded machine.  Cheston’s car is more than just good looking, its been the runner up in Sport Compact Car’s Ultimate Street Car Challenge, placing just 10 skinny points out of first place.

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Girl Gone Green: Verena Mei’s Time Attack Nissan 350Z

MotoIQ Staff Report

Photos by  David J. Dowling

A little understood fact about prepping a turbo car for reliable track use is that extreme cooling is needed and the off the shelf performance radiators and oil coolers on the market are not enough to keep a turbo engine cool under actual track conditions. The VQ35DE engine is kept cool by a custom Ron Davis C&R core dual pass radiator with swirl tank and large 13 row Setrab oil cooler.

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VQ35 on the Engine Dyno

Several months ago when we had the VQ on the engine dyno at Cosworth, I snapped a couple of pics. Since I never got to work on engine dynos very much in the past, I thought it was way cool to see a street car engine that we [the mostly unibody car crowd] commonly build/tune/whatever on a professional grade engine dyno. The ease of working on the engine is nice: there are no cut arms, burnt hands, busted knuckles, and emanating under hood heat blasting you in the face like on a chassis dyno. The amount of data we can collect is ridiculous too.

In the US, we do not have transient dynos. I think Cosworth has 7 transient dynos in the UK, but that is the SUPER big dollar equipment for ...

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VQ Crazy

 

Recently all around me have been Nissan VQs. There's the Cosworth Castrol Top Shop engine that I have been coordinating and tuning at Cosworth, then over at XS they are building a Z33 for my buddy Andy who owns Ark Design, so as a I built that engine on my own time, then I have been writing reports at Cosworth on VQ35DE camshafts like a madman, then I have been working on the Cosworth VQ35 long stroke crankshaft, my daily driver Maxima has a VQ30, I've been driving my mom's G35 which has a VQ35, etc. VQs kick ass.

 

The Cosworth Top Shop engine made 4xxbhp (buy the magazines) normally aspirated which impressed me. Th...

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Steve at M-Workz sent me some links the other day to some interesting stuff on the RJN Motorsports 350Z that raced at the 24 hours of Nurburgring. You can see some of the build details here at JPCN and more details here at Auto Zeitung. For more information on the IES VQ engines, you can check out the IES website. Chances are if you are reading this blog, you cannot afford anything from IES (nor can I) so please don't bother them unless you have a six digit engine program budget. Barrel throttles, carbon trumpets, and shower injectors are VERY expensive. Only race teams with race budgets should bother contacting IES.

FIA GT4 350Z

Steve at M-Workz sent me some links the other day to some interesting stuff on the RJN Motorsports 350Z that raced at the 24 hours of Nurburgring. You can see some of the build details here at JPCN and more details here at Auto Zeitung. For more information on the IES VQ engines, you can check out the IES website. Chances are if you are reading this blog, you ...

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