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How important is a tune...

This is a discussion on How important is a tune... within the External Engine forums, part of the LSx Technical Help Section category; After you have installed LTs, Y-pipie, and CAT back. I am thinking of buy these things in the next month ...

  1. #1
    lmpounded SandmanWs7's Avatar
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    How important is a tune...

    After you have installed LTs, Y-pipie, and CAT back. I am thinking of buy these things in the next month or so, but that would kill my mod money. Could I go 2-4 weeks of driving it without the tune or would it run like crap.

    Also what would you recommend for the above. I am thinking Pacesetters LT for sure but have no idea about the Y-pipe (needs to be catted) or exhaust.

  2. #2
    Pathelogical Liar BlackLT1Z28's Avatar
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    No, you don't need a tune. You will be running a little rich(er) than normal, but shouldn't be anything too severe. Without a tune, there will still be power left on the table, but it will definately still be driveable.

    And Pacesetter makes a catted Y-pipe for the LS1 applications. So that shouldn't be a problem either.

  3. #3
    Junior Member MassGaskets's Avatar
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    I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

    http://www.texas-speed.com/shop/item...id=182&catid=8
    Richard - '99 Hugger Orange Z28

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    Missing 4 Cylinders BULLET_WS6's Avatar
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    Quote Originally Posted by MassGaskets View Post
    I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

    http://www.texas-speed.com/shop/item...id=182&catid=8
    see now i heard the opposite... confusion... i think ima risk it and stick with the pacesetters... but i hear like half and half on that y pipe matter

  5. #5
    no more 4th gen secondgearscratch's Avatar
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    Quote Originally Posted by BULLET_WS6 View Post
    see now i heard the opposite... confusion... i think ima risk it and stick with the pacesetters... but i hear like half and half on that y pipe matter
    its a y pipe....pretty hard to screw up. the pacesetter one is fine, so is the texas speed piece.

    youll be fine without a tune.....anything after this though and you need the tune if its changing a/f ratios(cam, heads, intake).....

  6. #6
    Missing 4 Cylinders BULLET_WS6's Avatar
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    Quote Originally Posted by secondgearscratch View Post
    its a y pipe....pretty hard to screw up. the pacesetter one is fine, so is the texas speed piece.

    youll be fine without a tune.....anything after this though and you need the tune if its changing a/f ratios(cam, heads, intake).....
    allright thanks for the help... i was worried i would end up dumping money somewhere cuz i messed up

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    lmpounded SandmanWs7's Avatar
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    Cool thanks!

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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by MassGaskets View Post
    I've heard the pacesetter Y is poorly made. TSP makes a y-pipe for use with the pacesetters.

    http://www.texas-speed.com/shop/item...id=182&catid=8

    neither is poorly made.
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  9. #9
    Visualize°Design°Create SSwt00SS's Avatar
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    importance of a tune is basically this...

    having a car that's fun, drivable, and performs like it should, OR having a 3400 pound paper weight, cause something craps out as the result of a poor tune or no tune at all...

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    Member 408WS6's Avatar
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    You should have your tune checked every time you do a mod that affects intake, or exhaust. No, you don't have to, but you will get the full benefit of your mod if you retune.

  11. #11
    Senior Member greatwhiteZ28's Avatar
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    just look at all the header post more then half runs pacesterrs and love them, great clearence too, but

    yea i agree you will benifit the most with a tune, but not like crazy, some people never tune after after a LT install, but also keep this in mind since a tune can run 300-550$ if you plan on getting a cam or heads done wait a while till thats installed and gert everything tuned once.

    so here it is if you have the coin do it, if not wait a lil w/ some HP lose, and if getting H/C soon wait get all done at one.

    but listen to BLACKLT1Z28 hes the man on headers

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