Will porting the maf ends help HP wise? I'm confused because i though it would but read that it would be much harder to tune or something like that.

 

You would destroy the calibration and the pcm would not know how much air the engine is getting, how could that be a good thing? I seriously doubt it is a restriction for you anyway to check that use a vacuum gauge or logging software to check WOT vacuum.

 

Don't mess with the MAF, theres virtually nothing to gain there.

 

if you want to do something, take the ends off and polish the hell out of em.

 

So no Porting even if i'm going to tune the car later on. Only polishing

 

stock MAF is good to ~450rwhp. dont worry about porting, just polish if youd like. just DONT touch the sensors!

 

A good tuner may be able to correct for a ported MAF but in the mean time you would be running the car lean which is at best bad for drivability and power and at worst does engine damage. If this is something you really want to try contact your tuner like I said he may be able to correct for it but it will take time in person and likely on a dyno $$$$$$$$. I don't see a point to polishing it atall sort of like waxing you car before going to to the dragstrip, yeah it is smoother but that isn't going to help you.

 

then i guess its pointless to clean your throttle body too...

 

No a clean sensor is good otherwise it can not get an accurate reading. Think about it this way polishing ports(the MAF is smoother than stock ports to start) does not help until like 6500rpms and I will go out on a limb and say that velocity through a tiny little intake port is much higher than through the comparitively huge MAF. Read up on "boundary layer" the air touching the actual housing of the MAF is not moving like it is an eight inch in.

 

Check the sig...a completely stock car MAY benefit.Otherwise leave it alone.

 

if the guy is bored, he can separate the ends from the MAFS and polish them. unless it'll hurt, which it won't, don't give him wrongful information.

 

I will just polish it later on i though there was something to get out of there but then saw in a forum that it was going to ***k the A/F ratio.

 

Polishing without material removal will not hurt anything but it also will not help so at best it is a waste of time at worst you slip and screwup a wire or break something in disassembly. Those that honestly believe polishing is going to help when the surface is not exactly rought to begin with do like I said before and look into "boundary layer". Also check your WOT vacuum and let us know what intake and TB you have and what that vacuum was.

 

I think it was in chevy high performance that I read the lt1 runs rich with a stock tune and that removing the screens will help to lean it out. I did it and mine still runs rich and there is nothing there to gain by screwing with the screens. I wish I didn't do it. You can buy the z06 maf with the adapter harness from ls1speed.com for about $170. It is larger.But I have heard the stocker does support quite a bit horsepower.

 

Due to differences in the frequency ranges the stock vs. ZO6 piece use the stock one is actually good to a higher hp simply because at high air flow levels the pcm can no longer understand the ZO6 MAF it is still reading and sending a signal the pcm just doesn't understand it. On the rich thing yet the stock settings are rich which should only be fixed with pcm tuning, other workarounds may work at certain airflow levels or things like that but the only way to dial in the whole fuel curve is through the pcm.


94zgreenmachine, I live a little ways north of you If you make it to WIR and see a Caprice chances are it is me, say Hi.