I HAVE HAD IT with blown MAFs! I blew my 2nd MAF in a week (3rd in 2 1/2 months) this afternoon the same way I blew the first one earlier this week. The car was at normal operating temps. when I floored it to get away from an older M3 that was riding my ***. The car accelerated, then it hesitated badly, then accelerated again, only to have the PSM/ABS lights come on. What good is having a Stg 4 if I can't feel confident when I floor the car? Anyway, I have the V-Flow (the supposedly updated one with the venturi fix) and I'm pretty sure this is causing the problem. Does anyone know if they have done anything new to it that addresses this nagging MAF problem? If not, I'm replacing the darn thing! I'm either replacing the intake with the stock unit and my K&N, or I may look into getting Dan's (at VividRacing) intake. Any problems blowing MAFs with Dan's intake? If not, how does it compare to the V-Flow as far as HP and TQ? Any other intake recommendations? Thanks in advance.

 

You might try just replacing the K&N back to the stock paper filter! I know I am going to get flamed on this and I have read all the K&N damage control papers. But I have had three cars now that have had the MAF taken out AFTER I replaced the air filter with a K&N. Car one was SL500, Car two was Escalade and now third car, twice with my 996. It can't be just be a coincidence that this happens.

 

TAke the V flow out and put in a BMC filter.

next time do your homework before you commit to a tuning kit....
just my opinion,
markski

 

Marksi - I thought I did my homework, to be honest. I started with the GIAC flash, wastegates, and DV (I have an X50); then the Milltek; then headers; spark plugs; then hoses. I left the intake for last because of the reports I was reading regarding the V-Flow. It wasn't until EVOMS changed the design and claimed that the MAF issue was resolved that I took the leap and bought the V-Flow. I have had it in the car for about 5-6 months and only recently started having problems. Could it be a function of colder ambient air temps? I didn't have any issues in the summer months. The temps have been hovering in the 65-85 degree range since late November, as opposed to the 90-103 degree range (I'm in South Texas) during the first 2-3 months I had it in the car. I recently added the 5 Bar FPR, but don't think that is an issue. I really like the intake (great quality, sound and seat-of-the-pants increased acceleration), but am at a loss as to why I seem to be having this problem rear its ugly head now and not the first few months with the intake.

I do appreciate your advice, so thanks.

Hector

 

Just take out the VFLOW and sell it. Put in a BMC filter.
You may want to send back the Vflow back to ur tuner and maybe get some credit.. I would- especially since you blew 3 mafs...
Yes it seems like when there is a drop in temperature guys start blowing mafs ( with Vflows).
good luck,
markski

 

Yeah good advice..........with one of the others you could have saved the maf ..........but been replacing the motor.Not my opinion .....Fact.

 

joe are you stating that with other intakes motors are blowing?

 

had the v-flow for 1.5 - 2 years. had it while i was chipped (giac) then stage 2, then proto 600 kit running 1.2 bar. worked fine no hiccups untill i went for race gas upgrade/file. had the ability now to run 1.3 bar. lets just say that flooring it one day with race gas and race file working, i had the same issue. blown maf. ive been running strong stage 2, then proto 600 for a long time... but only now, with race gas and makeing alot more power/ more air getting sucked in to get a 1.3 bar of boost going, did it for me. same description as yours. psm/abs lights on = blown maf.

went back to stock + bmc, lost 5 or 10 hp (supposedly, cant feel it) but is well worth it. no issues no worries now.

 

As usual sound advice Mark....re-read joe's comment.

 

for the record, and for the sake of being fair, i blew my maf with proto setup which includes proto software + the evo vflow intake.

before, being a stage 2, for 10k miles on giac software and vflow, no hiccups whatsoever.

i conclude, for my case alone, that its the added power/ velocity of air going into the airbox at 1.3 bar that blew the maf.

been at 1.3 bar ever since with stock airbox many times and like i said no issues.

most people think the culprit is the giac software paired with evo intake. just wanted to make it clear i experienced the blown maf with proto software.

 

I have the EVO V-flow w/ the protomotive MAF integrated....THAT is the solution.

 

Sorry guys actually that was a little sarcasm.........Do we really know for sure its the V-Flow?(I know all the theories)How do we know it is not the V-Flow combined with something else going wrong?My car had around 850 FWHP at one time and never ever blew a maf.........and have seen many others do the same.At the same time I have seen cars blow them over and over with and without the V-Flow .I do think it is a stretch to say pick you tuner wisely because of it.My advice to the OP would be to call up EVOMS(1-480-317-9911) and let them know of the problem .........I am pretty sure they will find a solution for you.

 

Upgrade your MAF-and have the ECU re-programmed for the upgrade-if there is nothing else wrong with the car except the MAF keeps bonking. The Bosch OEM piece can't handle the high flow and electrostatic charge consequently generated.

 

Thanks for the input guys.

AirJordan23 you might be on to something. I have noticed that the boost has increased to 1.3 bar at WOT because of the cold weather (Evo wastegates set to 1.2 bar when the ambient temp was 90-105 degrees). I thought about getting under the car and adjusting them for the cold weather back down to 1.1-1.2 bar, but never got around to it. Would an EBC with a setting of 1.1-1.2 bar automatically adjust itself to temp changes and avoid this problem? Otherwise, I might go with Vividracing's cold air intake or just back to stock unit with BMC filter.

 

The colder air temperatures and the denser air definately have something to do with it. I have a 2001 and before I did ANY modifications to it I sent the MAF into overload one colder evening in Santa Barbara. This is before I knew the PSM/ABS light was really the MAF conking out. This was with the stock filter and intake. Now with the EVOMS unit I still get the signals, but there does seem to be a relation to ambient temps; at least in my case. I would be VERY interested in hearing about an UPGRADED MAF as referenced above. I didn't realize there were any alternatives?