I'm pretty new to this forum and new to nissan z32's. My last car was an 86 Celica ST162, the front wheel drive version of the Celica Turbo Alltrac. Anyways, I just bought a 90 non-turbo z32 and was wondering if the stock throttle bodies are a decent size for sufficient flow. I know that on the older VG30E engines, from the older Z, a throttle body from a s13 or s14 (240sx) is a significant upgrade.

 

I currently do not have a caliper to measure the bore of the VG30DE throttle body but I do know for a fact that my 2.0 3SGE Celica engine has a larger T.B.

 

Does anyone have the size of a N/A z32 T.B.? Would the VG30DE benifit from a larger T.B. or does flow well as is? Has anyone dynoed a z32 with stock T.B. vs. an oversized T.B.? Is it possible to upgrade to an S14 T.B. in the newer VG30DE? If so I am aware that minor mods are required to fit a 240sx T.B.

 

My questions apply to a internally stock VG30DE with bolt on mods and no cams(headers, intake, exhaust, ECU). Thanks for looking.

 

I apologize if this is a repeated topic. I haven't had much time to surf through the forums.

This may be of help:

www.uniqueautosports.com.au/pricelists/price%20list%20300ZX.htm

 

scroll down to "Bored throttle bodies"

 

-Andrew

The Celica TB will be bigger as it is flowing for 4 cylinders of 2 litres.

 

A Z TB is basically supplying 3 cylinders and 1.5 litres per bank - that'll be why there's 2 of 'em then