Car Forums  

Go Back   Car Forums > Vehicle Specific > Asian Imports
FAQ Search Today's Posts Mark Forums Read

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 11-28-2009, 02:53 PM   #1
CF Newbie
Join Date: Apr 2009
Location: perth
Posts: 2
I have reinvented the way air flows into an engine!

I thought I might share with you what Ive been doing.
I hope this may not be the wrong place to post this thread.

I have a 1986 Nissan Bluebird wagon 2000 cc (no EFI on this one),
which I have modified the intake track to be different than what is
out there, I ignored what I read on the internet about porting once
again and did my own thing.

I have improve fuel efficiency under highway driving conditions, I
have experienced as high as 60 mpg (4.71 L/100km) over a 220
km journey on a hot summer's day cruising around 80 km/h.
I can also get 15 mpg as well.

When I first ran my second engine with a STD timing a little
retarded I experienced very poor fuel efficiency under high load
and rpm but I had plenty of power, I also was able to exceed the
delivery from a single fuel pump (electric 1 L/min).

My engine timing is linear with rpm and depending on what
temperature the engine is run at I need to fire it in the power stroke
eg after TDC to stop knocking

I use a wire wheel to port my manifold and ports, I welded an
extension shaft to it ro reach in.

My ports look like this

have a look at my web site too there are intake recordings.
Visit My Website on the sound page.

I have a stock carby and my vac sec are fully open at 2000 rpm
it used to be approx 4000 so I can only guess at the air flow.

I have a video of fuel flowing from vac sec with no load this should not happen normally.
Click here

Last edited by smokingwheels : 11-28-2009 at 02:54 PM. Reason: subscription
smokingwheels is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Forum Jump

All times are GMT +1. The time now is 03:41 PM.

Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Copyright 2002 - 2011 Car Forums. All rights reserved.