CP induction

[mashaffer]

I mentioned here...

http://www.grandmarq.net/vb/showthre...-CP&highlight=

That once I get the major issues taken care of I was considering exhaust and induction upgrades. I think that upgrading to a dual exhaust is a no brainer but it really looks to me like this cold air plumbing has to be hurting airflow.



Just wondering if running straight intake pipe to a cone filter just behing the washer fluid reservior (eliminating air box and flat plenum) would help or hurt. It would seem to flow better but would probably not be as cool of an air source as currently. Would have to make some mods to washer and radiator overflow to get it in front of the bulkhead and right behind the headlights.

Worth persuing?

mike

[VicCrownVic]

http://www.grandmarq.net/vb/showthre...bottle-upgrade

That's what you're looking for. No experience with this mod myself so that thread is all I can offer, but looks like an excellent source of information.

[mashaffer]

Fabulous Thanks.

mike

[pantera77]

Stock air box works fine and is not a restriction on an HO, let alone a lopo. It may be ugly and in the way, but draws in nice cold air from in front of the rad. You can't get a better cold air intake.

[turbo2256b]

One of the worst things to hurt air in any system is the elbow right into the TB as well as most any elbow that is a turn. The sharper the turn the lesser the flow becomes. Corigations in the tubing hurts flow, all those ruffles and ridges air bounces around often fighting each other ristricting passage down the tube. A section that is too flat and wide hurts flow as the air flows mostly in the center not along the walls.
Cold air system defenition. It dosent realy have to be a cool air source. Its any set up that increases the air supply. So increasing supply useing a coold air source or under hood source helps unless its overdone to the point the EFI system can not adjust to take advantage of it. In which case it usally causes a reduction in power.

[mashaffer]

I suppose an interesting (and not very expensive) test would be to do some timed acceleration runs with stock intake and then the same with a short stub (no bends) right off the TB into a cone and run them again and see if there is any difference. Might get different results after exhaust upgrade too. Interesting topic. Wonder if there is an inexpensive way to actually measure the air flow...

mike

[turbo2256b]

can be figured out using a piggy back tuner such as a Tweecer. There is a PITA learning curve though on how to tune and read results.
At one point a intake I DESIGNED FOR cREAMY WAAS SO MUCH BETTER HAD THOUGHTS OF SENDING THE inlet system to ProM TO PROPERLY CALLIBRATE THE mass air flow meter. It was offset for 30# injectors in a factory 25# system. Not realy the way to do things.
My inlet system required me to recalibrate the offset built into the MAF by ProM TO AN 18% INCREASE IN FLOW. At the track found opening my cutouts needed about another 18% adjustment do to mufflers being out of the system. At this point I was flowing more air through the 65mm TB than it was rated for by about 100CFM. The ability to do that was also do to my engine build / work.
Later went with a larger TB and found the fuel lines couldnt flow enough to supply the engine even with all the fuel curve settings perty much maxed out.

[pantera77]

I suppose an interesting (and not very expensive) test would be to do some timed acceleration runs with stock intake and then the same with a short stub (no bends) right off the TB into a cone and run them again and see if there is any difference. Might get different results after exhaust upgrade too. Interesting topic. Wonder if there is an inexpensive way to actually measure the air flow...

mike

This has already been done at the track and dyno with an HO swapped car. No difference. Were talking sub 250 hp cars here even with an HO swap. They just don't need that much air.

Of course if you simply want a louder intake noise by all means throw a conical filter at the end of a tube and enjoy.

[mashaffer]

Thanks for the info. Sounds like time and money better spent on the exhaust. Actually I don't mind that as I rather like the quiet induction. As I said in my intro I am not really looking to make it a hot rod just maybe a bit more efficiency and a slight tweak in the high speed passing power Tried pumping up the tires to 38# yesterday to see if it helps in town mileage at all. Not sure what rear end came with the standard (no towing pkg) model but I am sure it is open diff. If I ever have the $$$ to put traclok in I probably should try to figure out optimum gears at that time.

mike