MAF Question

[Turbo Kyle]

Here we go againg :D . I am wanting to use a stock LSX LT1 MAF, now...I dont have HP tuners. What MAF can I use with out messing with the ECU? I am Runnung methanol injection and if my meth nozzle sees manifold Vac it will suck in meth at idle. I dont feel like buying a solinoid (or however you spell it).

[black34v6]

you can't change maf's and not change the PCM program without adverse effects.

[Turbo Kyle]

Originally posted by Russell:
you can't change maf's and not change the PCM program without adverse effects.

10-4 looks like Im going to get creative

[Turbo Kyle]

Is their any Plug and play MAFs? From any type of car?

[HAZ-Matt]

The only way for a MAF to be plug and play is if the airflow versus frequency is scaled the same way as the factory MAF. And practically nobody would go aftermarket for a MAF scaled the same way as a stocker.

[Turbo Kyle]

Originally posted by HAZ-Matt:
The only way for a MAF to be plug and play is if the airflow versus frequency is scaled the same way as the factory MAF. And practically nobody would go aftermarket for a MAF scaled the same way as a stocker.

Ok I got ya thier,
Is their a MAF I can use with out having to mess with the ECU. You know of any stock MAFS from other stock cars that will work?

[Linxs]

Originally posted by Turbo Kyle:
</font><blockquote>quote:</font><hr />Originally posted by HAZ-Matt:
The only way for a MAF to be plug and play is if the airflow versus frequency is scaled the same way as the factory MAF. And practically nobody would go aftermarket for a MAF scaled the same way as a stocker.

Ok I got ya thier,
Is their a MAF I can use with out having to mess with the ECU. You know of any stock MAFS from other stock cars that will work? </font>[/QUOTE]None that i know of. I ended up getting a new one cause i maxed the stock one. It's almost a must to have tuning capabilit if you are putting a turbo on the car. Otherwise, you'll end up ruinning too lean and that's not good.

[AllTheGoodNamesAreGone]

bleh.. again.. 2 & 3 bar speed density is where is gunna be at.. trust me..

[black34v6]

yes but I don' think they are developing that for the v6s.

[HAZ-Matt]

Originally posted by AllTheGoodNamesAreGone:
bleh.. again.. 2 & 3 bar speed density is where is gunna be at.. trust me..

Sigh, the first problem is whether or not they actually develope it for us.

The second problem is that it costs more $$ to get 2 or 3 bar SD support.

And lastly SD cannot compensate as well as a MAF.

[Turbo Kyle]

How fast will you max out the MAF with a Turbo? Also when the MAF is maxed what does the ECU to the the Fuel curve? send the injectors to full blast?

[AllTheGoodNamesAreGone]

Originally posted by HAZ-Matt:
</font><blockquote>quote:</font><hr />Originally posted by AllTheGoodNamesAreGone:
bleh.. again.. 2 & 3 bar speed density is where is gunna be at.. trust me..

Sigh, the first problem is whether or not they actually develope it for us.

The second problem is that it costs more $$ to get 2 or 3 bar SD support.

And lastly SD cannot compensate as well as a MAF. </font>[/QUOTE]1) it will be out for the v6's when v2.0 of hptuners comes out from what I understand. If not then shortly their after.

2) it is more $$.. but thats how the world works..
i think its expensive at $300.. however if they sold it for $200 it is not bad considering is saves you the trouble of buying a MAF.. but god only knows what he pricing will be.

3) compensate, huh? for what? that sentence makes no sence..

regardless in the right hands SD is just as effective fueling wise as MAF.. you jsut gota keep an eye on it..

sorry if you feal like i am slapping you in the face with my huge e-cawwwk.. but yeah.. your wrong..

[Linxs]

I see your point with SD tuning, The problem is that it appears (with my car anyway) the once i max the it drops the injector pulse to 7.1 No matter what was done it always did this. In my case a new MAF will make it easier to tune. I spent 150 on an SLP MAF Vs 300 on SD 2/3 bar. I'm good for 600HP. Until i exceed 600HP I'm not going to worry about SD tuning. I agree it will be needed just that it's easier to tune it with a MAF.

[tdz16]

Hey Linxs, let me know how that new maf works for ya. I'm really curious from your other posts here and over at the hpt forum. good luck!
~Tom

[HAZ-Matt]

Originally posted by AllTheGoodNamesAreGone:
3) compensate, huh? for what? that sentence makes no sence..

The reason why speed density is inferior to a MAF system has already been covered on this forum. But, I should have qualified my sentence for those of you you with limited understanding. I should have said that SD is not as flexible or adaptable as a MAF based system. Anything that causes VE to change causes the tune to be wrong.

Because a Speed Density system still has no sensors that directly measure engine airflow, all the fuel mapping points must be preprogrammed, so any significant change to the engine that alters its VE requires reprogramming the computer.

http://www.carcraft.com/techarticles/24549/

Originally posted by AllTheGoodNamesAreGone:
regardless in the right hands SD is just as effective fueling wise as MAF.. you jsut gota keep an eye on it..

Which means what exactly? That SD isn't as flexible or adaptable as a MAF system?

sorry if you feal like i am slapping you in the face with my huge e-cawwwk.. but yeah.. your wrong..

Ok.

PS. It's feel.

[ February 19, 2005, 08:46 PM: Message edited by: HAZ-Matt ]