Headers lean or not

[burt ragio]

It is long over due time to install my Stainless Works long tube headers. They don't do any good in the closet. Upon installation thinking the motor will run lean A/F will be off. Will the MAF make nessary corrections ? Is it nessary to get a tune ? Can't realy afford a dyno tune ? Can I get a generic tune loaded to my xcal2 or do I have to get a dyno tune ? What exactly do I ask for?

[DTRMiguel]

You would need a dyno tune. You figure every car is somewhat different when it has headers on it.

[DOOM]

I would put it on a dyno.

[vkirkend]

i would think to get maximum benifit of the headers you would need to dyno tune but believe that the MAF would adjust for the increased flow. But I'm just guessing.

[ImpalaSlayer]

dyno tune is nessesary

[Vortech347]

In theory, yes.

Real life? No.

You'd think the NEW systems would be easier adapted to mods. They arn't. Hell I'm running a completly stock computer with no tune on my 600hp fox body. hahahaah

[burt ragio]

That's what I was afraid of needing a dyno tune. Maybe I wait until I get the torque converter installed then headers do a dyno at the same time.

[merc]

That's what I was afraid of needing a dyno tune. Maybe I wait until I get the torque converter installed then headers do a dyno at the same time.

You don't need a dyno tune when changing out the exhaust. The car will work fine but not be optimized. You also don't need a dyno to when changing the torque converter. Those changes are done mostly on the road test or someone that is accustom to making changes to the 4R70w or 4R75w transmission. Example: Zack sent me a tune for my transmission and didn't see the car, but asked a couple of key questions. The cars shifts perfectly without error.

On the other hand there are things that must be changed on the dyno, see the list below. In many cases the car will fail to start or run poorly without a tune. Header can be bolted on without tuning.

Injectors
MAF
Supercharger
Turbo
NOS

[burt ragio]

Score the three.:help:

[merc]

Score the three.:help:

You will have some codes because of the rear cats are missing.
http://www.camaroz28.com/forums/showthread.php?t=681272

http://www.ls1.com/forums/showthread.php?p=611611

[Ken]

You will have some codes because of the rear cats are missing.
http://www.camaroz28.com/forums/showthread.php?t=681272

http://www.ls1.com/forums/showthread.php?p=611611 But they didn't cause the check engine light to go on?

Ken

[RF Overlord]

You don't need a dyno tune to when changing out the exhaust. The car will work fine but not be optimized...Header can be bolted on without tuning. ^^^what merc said^^^

It was fun hangin' with you last weekend...and I meant what I said about giving you a hand with the install.

[O's Fan Rich]

My car ended up throwing lean codes after the header install.
But that occurred only after Charlie and I were doing some spirited driving heading out to Woodward.
Around home, I did not get codes, but it stalled a few times on me.

After the tune all was well.

[Dennis Reinhart]

It is long over due time to install my Stainless Works long tube headers. They don't do any good in the closet. Upon installation thinking the motor will run lean A/F will be off. Will the MAF make nessary corrections ? Is it nessary to get a tune ? Can't realy afford a dyno tune ? Can I get a generic tune loaded to my xcal2 or do I have to get a dyno tune ? What exactly do I ask for?


On a N/A car you should be fine if you have a SC car I would add 5% accross the board, also if you have a Xcall just data log LTFT and STFT at WOT and you can see where your at and any good tunner can correct it.

[burt ragio]

It was fun hangin' with you last weekend...and I meant what I said about giving you a hand with the install.

Same here. The contention on advisement an imediate tune isn't nessary but would be of benifit. Another pair of hands would be termendous help. I have everything but exhaust manafold stud bolts should they need replacement. Do you think there are nessary ? We will have to find a date maybe some sunday. I'am guessing 3 1/2 hrs per side max.
__________________

[RF Overlord]

I have everything but exhaust manafold stud bolts should they need replacement. Do you think there are nessary ? Probably not, but in my experience if you have everything but one part, THAT'S the part that will break. If you spend the money on a spare, it won't. :rolleyes:

Seriously, if you have the time, try cracking them loose ahead of time just to be sure.

[ImpalaSlayer]

my headers came with new bolts..

[burt ragio]

Would these be the correct stang 8 locking header bolts ? Has anyone used these ? What were your experiences ?Ford Racing Performance Parts [M-9432-A54] (http://www.fordracingparts.com/parts/part_details.asp?PartKeyField= 5808)

[TAKEDOWN]

It is long over due time to install my Stainless Works long tube headers. They don't do any good in the closet. Upon installation thinking the motor will run lean A/F will be off. Will the MAF make nessary corrections ? Is it nessary to get a tune ? Can't realy afford a dyno tune ? Can I get a generic tune loaded to my xcal2 or do I have to get a dyno tune ? What exactly do I ask for?

Now why would you leave it in the closet? Jeeez, leave it in the box and on the living room floor just like me!

[Spectragod]

Mine are in the kitchen.... with my Harley, the wife hates me.......

[burt ragio]

"Now why would you leave them in the closet ?"
"Mine are in the kitchen"
Ok guys three guesses. Brunette high heels always on the cell phone.

[FordNut]

I would install them and not worry about a tune immediately, just don't go WOT. Get a tune before driving it hard and running WOT. Probably won't hurt anything, but it will not be optimized until being tuned for proper AFR. Better safe than sorry.