2g maf blow through?

[jayrogers]

I have read that if you install a 2g maf in a 1g car it will make the mix 20% leiner. I also read you can fix this with 550cc injectors because they richen the mixture 20%. Is this safe, true. My real question is can a 2g maf be installed in a 1g in a blow through system. Is this possible? If so would it be compatible with my current setup.

 

[MyBeatGSX]

I love accurate and to the point answers. Thanks.

 

[oldman]

One distinct advantage to the blow-through setup is that with a blown coupler, anywhere before the MAF, you can still maintain highway speeds and the "limp" home does not elicit many evil stares and honks from the backed up traffic behind you.

Unfortunately, many mis-interpret this "distinct advantage" as "boost leaks no longer matter", which will lead to higher intake temperature and pre-mature turbo failure.

 

[MyBeatGSX]

That's not what I meant if you're refering to what I said after him. I was just making the point that it sucks to be stuck on the side of the road because an IC pipe blew off. This is much different than a boost leak.

 

[JayRolla]

Yea but if the pipe blows off you pull over and put it back on and dont boost till you get home, duck tape helps a lot.

 

[MyBeatGSX]

When the 90* elbow off your J-pipe COMPLETELY blows off in the middle of a busy road 2 miles back from the parking lot you pulled into at 11:00 at night, and then gets run over a few times in the 30 minute period it took you walk back to pick it up AND you have no tools on you. No, you don't just put it back on and keep driving. You call your friend that has to wake up from a dead sleep and come get you and bring you back to your house so you can pick up tools. And then you spend the next hour burning your arm off on the hot manifold and radiator while trying to make your smashed up pipe fit back on, only to have it disconnect again after the first time you shift coming out of the parking lot. But this time you're really pissed and not stopping. So you drive 3 miles home at 10mph in first gear and run every red light on the way so the car doesn't die, all the while shooting flames and waiting for the engine to cut out and strand you again.

Then you go buy a blow through MAF so it never happens again.

 

[oldman]

Then you go buy a blow through MAF so it never happens again.

Or T-bolt clamps. And no, I wasn't talking about you or IC pipes popping off, I know you know better than that....I think.

 

[MyBeatGSX]

I have both T-Bolt and those $15/each lock washer wormgear clamps. When your dejon piping sucks nuts and doesn't fit for crap, it will come off regardless. Even T-Bolts can't hold a coupler on with the motor torqueing back on it.

 

[Quasimondo]

Dejon piping sucks because they send you crappy rubber couplers. Upgrade to silicone couplers, use t-bolt clamps, and use a light coat of hairspray on the pipes where the couplers will go to help them stick to the pipes and you'll be fine.

I used to have a similar problem with my MAF in blow-thru, except I kept blowing the coupler behind the MAF. I had to push my car off the line at the track after I launched, blew the pipe and stalled out. It popped so hard my friends in the stands thought I broke the transmission.

 

[MyBeatGSX]

That's exactly what I had to do. I bought couplers that were almost twice the length of what Dejon sent. It now fits with just a few millimeters of play for when the engine torques over.

 

[oldman]

Dejon piping sucks because they send you crappy rubber couplers.

I believe they're fuel hoses for trucks, at least that's what my intake pipe came with.

 

[Blackmitzu]

Ok, so if a gm maf is a hotwire type, then should i set my afc to hotwire? Im having trouble getting my car to rev past 4000 rpms without breaking up. I have a gm maf , translator set for 720s, walbro 255 set at stock fuel pressure, and afc.

 

[Quasimondo]

Leave the AFC set for Karman. That's what the translator is for, it translates the voltage readings from the hotwire maf to a matching Karman count that the ECU can see.

What's the condition of your plugs and wires?