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View Full Version : BAT/Maestro7 users: Anyone out there running an MAF?



JumboBlack1.8
03-04-2011, 03:27 PM
As the title states, I'm wondering if anyone out there with a BAT is still running a MAF. I'm kicking around the idea of reintroducing one back into my setup after I get the motor reassembled. I've worked tirelessly to try to correct my timing issues using this Maestro7 MAF-less file, and I'm not sure what else to do. It seems that ALL of the B6 1.8T Maestro users have abandoned MAF-less, and have had great success. Every other MAF-less user I've read about is a number of issues.....This may be a stupid question, but are there any drawbacks to running an MAF system (w/ a DV instead of a BOV) for turbos as large as my GT3076??

I worry that this size of a turbo is pushing TOO much air for a diverter valve to handle once the throttle body closes......which will result in potentially fatal compressor surge......but I'm totally unsure....

I don't really have ANY space left in my engine bay, but I may have to try my best to make room[headbang]

If any of you DO have BAT's and an MAF, could you post a pic of your intake setup? I need some inspiration

Heres the space that I'm working with.....VERY tight
(older pictures before the turbo and FMIC piping were reclocked)
http://i936.photobucket.com/albums/ad207/ltortora777/DSC_0354.jpg
http://i936.photobucket.com/albums/ad207/ltortora777/DSC_0353.jpg
http://i936.photobucket.com/albums/ad207/ltortora777/DSC_0351.jpg

newish
The red arrow indicates where the compressor outlet and FMIC piping are
http://i229.photobucket.com/albums/ee167/FattieJayMack/IMG00019-20101202-1152.jpg

*edit* Bear with me.....photobucket crashed on me, I'm editing the last photo....Should be up soon

034Motorsport
03-04-2011, 05:53 PM
I worry that this size of a turbo is pushing TOO much air for a diverter valve to handle once the throttle body closes......which will result in potentially fatal compressor surge......but I'm totally unsure....

I don't really have ANY space left in my engine bay, but I may have to try my best to make room[headbang]

If any of you DO have BAT's and an MAF, could you post a pic of your intake setup? I need some inspiration

There is definitely no reason why you can't run a diverter valve with that turbo. You can run a DV with a turbo even bigger then that.

Making room for a MAF will be interesting though.

discontained
03-04-2011, 06:15 PM
you could get a 90 degree cobra elbow at the turbo and run the MAF off that then the filter.

034 has them http://www.034motorsport.com/fabrication-high-temp-rubber-90-degree-tight-radius-rubber-elbow-cobra-head-or-p-668.html there should be enough space between the rad support and the turbo to do that

goodhews
03-04-2011, 06:35 PM
seen a few ppl tune their car with the maf, then delete it once everything is perfect.

JumboBlack1.8
03-04-2011, 08:01 PM
Thanks for the advice, guys. Running an intake and a DV will be interesting.....sucks that I JUST ordered a Tial Q Bov tho......

EuroDriven
03-05-2011, 03:31 PM
I run a MAF on my 3071R setup. Check out my build thread for pics since the car is away for the winter. I still haven't gotten it running correctly yet, no clue why. I use a SPA Manifold and there was plenty of room in front of the turbo for tubing. I would recommend changing your manifold, but then you would need to change the DP too which might end up making a huge project out of everything. I have pics of the intake outside of my car and in my car in my build thread.

What kind of DV are you running? Some of them you can run open like a BOV. I ended up routing mine into my intake to see if that would help my idle issue, but I run a Turbosmart DV. As long as it is closed at idle and doesn't cause a vac/boost leak you will be fine on whatever you use.

-John

JumboBlack1.8
03-05-2011, 04:15 PM
Thanks guys. I'm really torn about what to do about my DV/BOV if I do go with an MAF. I THINK the Tial Q closes at idle, but I'm not 100% sure.....

As for the intake, not sure what size piping I should go with. I'll likely be running a 3.25" S4 MAF with an AWM sensor. Think 2.5" or 2.75" piping would cut it?

turbo944s2
03-05-2011, 04:49 PM
John I was looking at your build thread last night. Do you have any pics of your intake setup?

turbo944s2
03-05-2011, 04:50 PM
Jumbo is your car converted to a 2001 computer or is it still a 2000 computer?

JumboBlack1.8
03-05-2011, 05:18 PM
Its got an AWM engine harness and ecu

turbo944s2
03-05-2011, 06:07 PM
Nice, I already bought a vast custom tune before I found out that could be done. If you dont mind telling me how much did that conversion cost ya?

LightSwitch
03-05-2011, 06:11 PM
im still undecided as to whether to run a MAF or not. Ill just have to watch your results. I'll be going to a 3076 aswell. possibly an EFR 7064 since ill be starting from scratch and wont have to deal with a wastgate/bov etc.

EuroDriven
03-05-2011, 08:25 PM
Page 5:
http://farm5.static.flickr.com/4114/4825328915_95a843a473.jpg

JumboBlack1.8
03-06-2011, 03:02 AM
I didn't build the car, but it wasn't a very difficult swap coming from an ATW. It requires the AWM ecu, harness, and some mild rewiring. However, I wouldn't do this swap on a non-DBW car

gotboost
03-06-2011, 06:19 PM
Hey were did you get the filter thats on you catch can?

JumboBlack1.8
03-06-2011, 06:27 PM
Ebay. Its a K&N filter

JumboBlack1.8
03-09-2011, 04:38 PM
I'm still wrestling with this......I've bought some 3" intake piping, but I'm NOT sure if that's big enough......For an MAF, I'm going with a TT225 Sensor, and at LEAST a 3.5" aluminum MAF housing.......Should I go bigger???? Would a 4" housing be better for my setup?

ZimbutheMonkey
03-09-2011, 09:20 PM
Page 5:
http://farm5.static.flickr.com/4114/4825328915_95a843a473.jpg

Good to know that it can be done. I'm going BAT on an AEB so I have no choice in the matter. However I'll be fabricating my own mani and downpipe so at least I have carte blanche to put the turbo exactly where I want it.

somebody5788
03-10-2011, 06:03 AM
I was thinking you could do it like I did on my supercharger but it doesn't look like that's possible. My MAF sit's under it then goes 180* in an upward spiral to the filter. It took a long time to get that to fit.... But I don't think that would work with your setup because the turbo inlet is way farther forward so you'd have to put the MAF after the elbow instead of before. http://i129.photobucket.com/albums/p223/somebody5788/2206d7e6.jpg Doubt it would work

JumboBlack1.8
03-10-2011, 08:59 AM
Made the decision.......going with a metal 4" MAF housing with an AMU TT225 sensor, AEM Dry Flow 4" filter and water-resistant Filter wrap, 80* Silicone elbow for the TIP, and a 4" aluminum pipe........Just hope it all fits......

JumboBlack1.8
03-10-2011, 12:01 PM
This is exactly what I'm going for, but in 4":
Courtesy of MmmBoost, running 3.5" MAF and 3" piping
http://chrispaltzat.com/images/avant/build/3.5MAF/3.5inch%20MAF%20upgrade-08.jpg