MAF-T thoughts

[TheRedRabbit84]

From what I have learned in my short month as a DSM'er about the MAF can be summed up in a few short words:

F*** the stock sensor. I want an airflow sensor to measure the amount of air that enters my throttle body, NOT THE F***ING air that first enters my intake system and escapes from the rat-maze that is my IC piping and fittings, only to mess up my idle and screw with my fuel mixture!

Don't get me wrong, boost leaks are my enemy too, and I spent the money on the boostpro leak tester with the compressor coupler and gauge, but even if I seal the system so it holds 15 PSI for 10 minutes, and 6 PSI from then on till i bleed it out, doesn't the argument have merit that recirculating the BOV back into the intake before the turbo only slows down compressor surge, instead of eliminating it altogether?

Am I completely wrong here, or does putting an in line GM MAF sensor using a translator right before the Throttle Body make more sense?

the few mods I plan on doing are these: DNP55 4G63 fabricated exhaust manifold with a Tial 38mm wastegate, a Turbo XS Dual Mechanical Boost Controller, an HKS BOV, vented to atmosphere (with MAF-T) aaaaaaaaand um.... better engine oil (Royal Purple I'm thinking)

any fresh takes on this old idea?

 

[1992awdlaser]

There is nothing wrong with the way the stock maf is. If air is escaping before it get to the throttle bod, fix the boost leaks. You are right about the compressor surge but thinking about it the wrong way. Its not because it is going back in the intake, but because it isn't bypassing as much air as an aftermarket bov. The air would have to be going back into a pressurized pipe for it to do that. Since it will be going back into the intake the turbo will only pull in what it is capable of. If it went into a pressurized pipe then it might alll of a sudden slow the turbo or even stop it. So yes you will have a higher chance of compressor surge with a stock bov then an aftermarket one. But it isn't that big of a chance with your set up. The new bov will create better transiet boost response(after you shift). It will do this since it will let more air out of the intercooler pipes and the turbo can keep spinning faster then it would with the stock bov. The maf-t as you know also gives you a way to tune your car so it can run optimal. Oh, and add a Walbro fuel pump to your plans.

 

[tommy260]

Yessir. A cheaper way of solving this problem would be to run a 2g maf on your 1g. If you are adement on venting your bov then go with the maft. I just switched from the 2g setup to the maft setup but havent run the car yet so I have no input to give you on it. Good upgrade though.