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GASKET MATCH LOWER RUNNERS (INTAKE BASE) PORTING
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Well with the heads going further then a gasket match port, I had to do something more to the lower intake then its simple original gasket match port, or it would be a wasted effort... I decided to stick with my original lower intake that I had already done a gasket match port job on! To take it further... First off, I had to have the intake ports in the heads match up to the runner ports in the intake. Then I needed to open the whole track up further to make room for all that airflow from the new truleo intake! Amazingly, I found quite a few areas I could really clean up the intake runner. I just hope it does the trick! This is another area of little research, like the heads, so I'm flying by the seat of my pants on this one too!
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Stock lower intake runner...
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The casting roughness is quite apparent in most of the stock pics, as well as what it does to trap carbon. Here are some pics of a stock lower intake I had around that is fresh off a car and unported! Being aluminum there was no real easy way to clean it up! So I sprayed it down with intake cleaner and this was as good as it got!
Going to follow the airpath thru on these pics...
Going inside the port...
The side that meets with the intake port on the heads...
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Early Gasket match porting on lower intake runner...
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The idea behind porting the intake is the same as the heads, having the track cleaner and larger then stock; removing all casting lines and rough, sharp edges for smoother air travel thru the runner. Just removing the casting will open things up pretty well. Then you have to be sure and gasket match the porta on both ends. The step b/w the intake and heads should be a smooth as possible with no lip, that way you reduce turbulance in the airflow. Now like the intake side of the heads, you don't want a mirror smooth finish when you are done...port this intake runner track leaving it rough to keep the fuel suspended and mixing with the air.
It can take awhile to port an intake even though it is aluminum. Mostly, because I could not take short cuts like the carbide cutter, it was too extreme for aluminum and there was a good chance I would go too far if I used it! So I had to instead stick to the grinding stones. Now the grinding stones fill up with aluminum and clog easily. To combat this, I stuck with the trick of wetting the stone with WD-40 before I started and as I went. Worked like a charm!
Here it is being installed after I freshly gasket match ported it!
Here it is back off, for its new report, after quite some time being driven with...
Close up of the port...
Pic down inside the port...
Some pics even showing thru the ports..
Where the intake meets the head...
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HOME PAGE
Follow this link to additional information on the car not found on this site!
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DIRECTORY FOR RAIF'S ENGINE PERFORMANCE SITE
01
Site Overview
02
Most Current Dyno and Track run
03
Early Cold Air Induction System
04
2001 Modifications
05
2001 Track Times
06
2002 Modifications
07
2002 Dyno & Track Times
08
2002 Fall Modifications
09
2002 Fall Dyno & Track Times
10
2003 Distributor rebuild
11
2003 Transgo Shift Kit & Stall Converter
12
2003 May Dyno
13
2003 3.4L Engine Swap
14
2003 3.73 Disc Rearend Swap
15
2003 December Dyno
16
2004 Cutout & PF&E Headers
17
2004 Dyno
18
2004 / 2005 Transmission
19
2005 3in Mandrel Bent Exhaust & Dyno Results
20
2005 Truleo Intake, 65mm Ford Throttle body, Stock, & Disassembly Pictures
21
2005 Truleo Intake, Ford TB, & Fuel Rail Installation
22
2005 Truleo Intake & Ford TB Vacuum Line Routing
23
2005 Truleo Intake & Ford TB Custom Linkage Installation
24
2006 MSD Box & New fuel Pump
25
2006 Old Heads: Gasket Match Ported, & General Porting Information
26
2006 New Heads: Extreme Porting
27
2006 New Heads: Multiangle Valve Job, 1.6 Roller Tip Rockers, Beefier Valve springs
28
2006 Lower Runner (Intake Base) Gasket Match Porting <<<
29
2006 Extreme Lower Runner (Intake Base) Porting
30
2006 Dyno Results: Truleo & New Head Combo
31
Future Plans
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