I had recently discovered this article on wiki.
http://en.wikipedia.org/wiki/Short_ram_air_intake.
"""Additional problems can result from using a short ram intake in cars utilizing a mass airflow sensor though most of today's sensors automatically adjust without issue. Turbulence in the intake airflow produced by the filter or piping, or a change in intake diameter at the point where the airflow is measured can produce inaccurate airflow readings. The error in airflow then translates to an error in the amount of added fuel. In the worst case, the air/fuel ratio can run lean, causing detonation and possibly engine failure although the airflow sensor will generally detect and correct the throttle to compensate for the warmer air. This can also be solved by modifying/elongating the intake piping, replacing the airflow meter, or by replacing/remapping the engine control computer to provide the correct amount of fuel for the intake airflow at all engine speeds.""""
I have a l61 motor. I have removed the plastic tube in between the two intake plenums. You know the "S" shaped tubing. I fit the " after market " intake filter right after the two air sensors keeping them intact.
Will the mass-air-flow sensor adapt to the difference or do I need to tune the ECU?
Someone with experience please help.
Is there a specific short-ram intake set-up made specifically for this motor and the stock ECU??
Rich Grayo Jr. wrote:i'd have to say since NO j-body car was EVER equipped with a mass air flow sensor, you're good.
this!!!
we have IAT and MAP sensors..
So unless there is an exsisting problem with the motor, I can slap a aftermarket cone air filter pretty much anywhere on this bitch and it will self adjust everything to run normal?
you can put whatever intake you want on the engine, as long as the IAT is measuring the correct temperature, and the MAP sensor is correctly reading manifold pressure/vaccum, and the TPS is working correctly (correlating with the the MAP), You'll never have a runability issue... you may however lose HP if you don't have the supporting mods for the intake.
The IAT runs in to the intake tube, however will function outside of the tube, but its not sending accurate temps back to the PCM. the MAP runs off the Intake Manifold, and the TPS is on the side of the throttle body.
Ok, So you know that tube that goes from the cam cover to the stock intake box. Well mine broke. I am now using a small cone type filter thing that fits perfectly on the cam cover metal tube sticking out and I taped the hole on the plastic intake box. I then put a cone air filter right where the S shape tube was.
Now I have noticed some harshness when revving around 1,500 to 1,860 rpms. then it goes away. This was both before and after the alterations? What could that be?
Step away from the car. Done!
miles gillings wrote:Ok, So you know that tube that goes from the cam cover to the stock intake box. Well mine broke. I am now using a small cone type filter thing that fits perfectly on the cam cover metal tube sticking out and I taped the hole on the plastic intake box. I then put a cone air filter right where the S shape tube was.
Now I have noticed some harshness when revving around 1,500 to 1,860 rpms. then it goes away. This was both before and after the alterations? What could that be?
harsh? like hesitate? check your spark plugs...
Yes, I was thinking spark plugs. I have already replaced one plug boot because the spring was all GUNKED up when I checked it. I am just in the process of finding a lug to get the spark plugs out.
Is it 5/8 Size?
what ever happened to reading? doesnt anyone use the search button anymore?
"As I lay rubber down the street, I pray for traction I can keep, but if I spin and begin to slide, please dear God protect my ride." -Amen
parts store... 16mil or 5/8 spark plug socket... and a long extension
done
Dont forget antiseize for the threads on the plugs.
TheSundownFire wrote:Dont forget antiseize for the threads on the plugs.
No you need red loctite last I remember
SLOCAV wrote:TheSundownFire wrote:Dont forget antiseize for the threads on the plugs.
No you need red loctite last I remember
mmmmmm......... #263 loctite. oxy/acet + 3' breaker and a day's effort. you might get it loose.
Edited 1 time(s). Last edited Tuesday, December 20, 2011 7:01 PM
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Never before have I seen so much thought and research going into a frigging intake. Dude, step away from the vehicle. And the keyboard.
Arrival Blue 04 LS Sport
Eco
Turbo
Megasquirt
'Nuff said
