After installing headers, do I now need a tune?

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Apr 4, 2007 | 10:12 PM

#21

DANSBIRD

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Thanks Swanner, i'm getting James to get me a tune in a week or so. W/ this motor, i doubt i'll have a lot more done. If i get a cam one of these days, i'll get another tune then, but thats a big iffy.... w/ this motor

Apr 5, 2007 | 06:52 AM

#22

DANSBIRD

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Quote:

Originally Posted by DANSBIRD

My car is running like absolute hell right now. It kinda sputters a bit while in gear. Is this due to the lack of a tune? or something else? PS, i havent checked the plug wires, but it only happens on occasion, not all of the time

.....

Apr 5, 2007 | 07:16 AM

#23

Rob98LS1

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From: Sacramento

could be getting pig rich and causing it to buck a bit.

Apr 10, 2007 | 11:40 PM

#24

SILVERZZ28

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From: South,Alabama

Dan You didnt believe me huh. lol

Apr 11, 2007 | 08:53 PM

#25

desertLS1

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yeah my car did the exact same thing....it would sputter and jerk forward....changed all my plugs n wires and good as new! also getting a custom tune this friday ill keep you posted on how well it helps.

Apr 11, 2007 | 09:15 PM

#26

DANSBIRD

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Quote:

Originally Posted by SILVERZZ28

Dan You didnt believe me huh. lol

This thread was made before you and I talked.

Apr 11, 2007 | 09:27 PM

#27

FU_I_AM_UltraZ

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From: New Port Richey, FL

Quote:

Originally Posted by Rob98LS1

I'm about 30 hp down from where I should be because I didn't get a tune.

thats right... your wasting more gas due to high a/f mixture. untaned i was at 332rwhp and shot up to 351rwhp. afterinstalling my slp UD pulley... i got 353rwhp out of the deal. getting tuned is very recommended!!! gif you got the cash.

Apr 11, 2007 | 11:27 PM

#28

matt94z

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From: Munfordville KY

Quote:

Originally Posted by slimcracka

well i got a dyno tune after i did my headers...b4 i had manifolds with an ory and all other boltons with a street tune. after the headers i went to get the dyno tune and half way threw the first pull he aborted the it...it was at 15:1 afr.. thats how lean just headers made my car....crazy yes but its possible...now you do have cats so that might change a couple things but i would just to be safe...

My car did the same thing. It was dangerously lean at WOT. A tune is well worth it.