firehawk68mcleod

iTrader: (2)

im building a ls2 forged internals, d1 procharger and 3.4 pulley. HP should be around 750hp. i heard the stock gto maf is only good for 550 ish... so what maf do i buy? i heard i can use a g8 or ls3, ls7,ls9... or aftermarket? let me know thanks

firehawk68mcleod

iTrader: (2)

any ideas guys

robbyredneck

iTrader: (1)

tune it sd and forget about the maf

slow67

iTrader: (2)

What PCM?

ChevyChad

iTrader: (50)

Even if you get a MAF that won't max out, your computer is limited on what it can read (assuming its a stock 4th gen fbody PCM). You should do it right and go SD.

firehawk68mcleod

iTrader: (2)

Im running the e40 ls2 gto computer/ corvette.. 90mm dbw tb. i think the map and maf sensor are all in one. the weather changes her so often and im just streeting this car ive heard its best to keep it.

firehawk68mcleod

iTrader: (2)

e40 ls2 2005-06 gto/ corvette computer

firehawk68mcleod

iTrader: (2)

Ive had the sd tune thread.. and tons of people say its great for the track but not good for street and constant weather changes

bozzhawg

Good question , I am too running a 06 gto/maf.... I wanted to know this too


Bozz

firehawk68mcleod

iTrader: (2)

Whats your set up

slow67

iTrader: (2)

Unless you want to deal with the headaches of scaling the IFR table (and then all the other tables too) I would do an SD tune.

If you think you can deal with scaling everything, I'd go with an Abaco MAF or put an LS7 card style MAF in the biggest possible tube (like 4" or maybe even larger) so it doesn't run into the Hz limit.

firehawk68mcleod

iTrader: (2)

I ve seen that done. but you know how ls2 gtos have the map and maf sensors in on unit. where do i put the map

robbyredneck

iTrader: (1)

anywhere after the throttle blade.

map and maf or iat and maf?

firehawk68mcleod

iTrader: (2)

I have a alcohol injection system devils own.. but it comes with a map sensors as well.. does this mean i run two seperate maps or only one..

slow67

iTrader: (2)

2.....1 for the meth injection, 1 for the PCM. Since your IAT is in your MAF sensor, you need to get a seperate one (you can buy an IAT pigtail and do it yourself, or buy the adapter harness that splits the MAF and IAT)

The factory PCM already has a MAP sensor in the intake manifold, it's not built into the MAF.

robbyredneck

iTrader: (1)

if your map is 2 bar and you set up your pcm 2bar with a custom os(hp or efi) , i don't see why you couldnt use the same map. provided it's 0-5v. btw i use sd and see no adverse behavior when weather changes etc. most guys that say it sucks have a crappy ve tune and the maf tune is covering it up.

firehawk68mcleod

iTrader: (2)

are you sure on a 2005-06 gto there different.. the iat isnt in the tb like ls1s and the map sensor is inthe maf intake unit. where ls1s are in the rear of the manifold

firehawk68mcleod

iTrader: (2)

i believe it is a 2 bar.

slow67

iTrader: (2)

Your confusing the IAT with the MAP. A MAP will ALWAYS be in the intake manifold somewhere, otherwise it can't read engine vacuum.

pdasterly

iTrader: (4)

speed density is fine, alot of cars used it like my old 93 Z28 lol