TheGovernment
Member
- Joined
- May 2, 2010
ya I know. I figure, get the new stuff on and if it still does it, at least I'll know for sure it's not the maf and I won't have to worry about it going bad for a very long time.
Would love to go with a 3.5" LS1 MAF and Translator but don't have $350 for it right now.
Tx.
just put a cardone on mine and everything is good.
for nearly ten years i have been measuring lots of mafs that are marketed for the GN---------i have no dog in this fight-------only facts-------anyone want to see the numbers i can post actual flow vs gm/sec numbers------when the cardone units first became available from the mainstream auto parts stores in the late 90's you could count on about half of them to work correctly---------before i continue i want to clearly define "work correctly"--------this means that the signal sent to the ecm will give accurate data throughout the ENTIRE operating range-------ie from idle up to the point where the ECM stops reading at 255--------some units will read accurately at higher numbers and others will read accurately at lower numbers while some are all over the place depending on what actual engines they were originally designed for--------at the last event i had several "poor performers" here for testing and when i was finished i discussed the results with Bob Bailey-------the question i asked him was simple-------how are these companies successufully marketing these poorly performing products?------his answer was about as clear as anything i could come up with-------"lowered expectations"---------some folks don't even know when the car is working correctly as long as it appears to "run correctly"------I believe bob is certainly right on the mark--------from the gaggle of new GN owners that straggle by my shop on a rather regular basis for help it is clear that many owners have no idea just how their car is supposed to run in the first place-------sometimes if it idles OK and isn't smoking or popping they think all is fine--------now back to the history of replacement Mafs---------when the cardone mafs first came out they were more often than not made from correct cores------correct originals were marked with the code BW underneath--------a 90 degree downward plug is not a guarantee that you have the correct unit but it at least means that you might at least have a chance-------at first all the aftermarket remans sold for GN's were downward plugs and the odds of a good one were high--------eventually the cores started getting rarer and the stock started getting populated with the straight plug units--------it is RARE to find one of these that is calibrated correctly--------as time went on even the bad cores with downward plugs started to dry up and cardone started modifying some of the units by adding rivited mounts to the side so that they would "bolt on" to a GN correctly--------to date i have never seen one of these that worked correctly--------at one time Dennis was selling these until I informed him that they were no good (probably about 6/8 years ago)---------the auto parts stores still sell lots of these---------from my best guess i would say you have way less than a one in five chance of getting a good maf from a regular parts store--------car may seem fine under some less demanding conditions but its not really right--------Dennis has managed to isolate a small population of correct cores that cardone seems to get the calibration pretty close on----------bottom line is really this---------when GM discontinued the correct maf Bob bailey really fixed the problem right---------nothing (not even the correct original) works as good as the LT1 unit with his translator-------it is superior in every respect except for $--------if you really need a stock look the Cardone that dennis sells is the best alternative--------at least you know the car is going to run and perform correctly---------for those that are interested here is an actual calibration curve for the BW maf-------it is an average of three brand new NOS units measured on a Superflow 1200 flowbench that is carefully calibrated................RC
Does anyone have a picture of a correct stock MAF? Pick-up Cardone reman #2 tonite. Will post results.
As I posted earlier, first one idled fine and have better tip-in but once going ran super rich and could not even get to WOT. SM did show numbers increasing up until point of stutter/cut-out.
OK, pick-up MAF #2 last night. This one had the plug facing down (perpendicular to airflow). Car actually ran OK and was able to get into boost. However, SM showed some major KR so had to back out. Not sure if the MAF or another problem. BLMs still high so need to track that down also.
Good news is for $50, idle and idle tip in is much better and can now drive under normal conditions without it sputtering/bucking from a stop.
Long story short, IMO, is try luck with Cardone if you don't want to "beat" on it. If you want to go fast, as the senior guys stated, go with late model MAF and translater......which is next on my list.
Thanks All!!!