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Master Coalroller
nissan
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Discussion Starter #1 (Edited)
The 6.5 turbo is fitted with an electric fuel pump, and the N/A should be fitted with a lift pump on the RHS of the engine block like Red holden motor position.

Both the electronic controlled and mechanical IP versions require 3-9 psi fuel pressure to advance timing correctly through the rev cycle.

However, for whatever reason they rarely do. So to check get one of these mechanical gauges and fit it with a cheap oil pressure gauge kit and then....

https://www.ebay.com.au/itm/SPECO-FUEL-PRESSURE-GAUGE-0-15-PSI-CARBY-512-15/120653734272?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
 

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Master Coalroller
nissan
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3,242 Posts
Discussion Starter #2

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Master Coalroller
nissan
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3,242 Posts
Discussion Starter #3

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Master Coalroller
nissan
Joined
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3,242 Posts
Discussion Starter #4
Most importantly though understand that without the appropriate supply of pressure these IP will not advance or enrichen the fuel delivery correctly.

Fit the regulator in the last line to the IP, the electric pumps one at the top of the tank and one in the engine bay, and your filtration after both pumps.

Symptoms of poor fuel pressure are: poor acceleration; white smoke at WOT in early RPM and no smoke WOT at high RPM; flatlining at WOT above 3000 RPM; overheating and high EGT during work periods even though normal temps at returned normal operation.
 
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