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To Tune or not to Tune?

This is a discussion on To Tune or not to Tune? within the Computer & Tuning forums, part of the LSx Technical Help Section category; So far I have an SLP CAI with lid, smooth bellows and 85mm MAF. Soon I'll be getting a ported ...

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    Junior Member Ironwolf's Avatar
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    To Tune or not to Tune?

    So far I have an SLP CAI with lid, smooth bellows and 85mm MAF. Soon I'll be getting a ported throttle body and Pacesetter LT headers with a cutout and Magnaflow catback exhaust. I know a tune wouldn't be necessary with these mods, but I also hear a tune can wake up even a stock LS1. Is it worth the $150 and a drive up north or mail order to get it tuned after I get all that done?

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    Senior Member 2001camaroSS's Avatar
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    Quote Originally Posted by Ironwolf View Post
    So far I have an SLP CAI with lid, smooth bellows and 85mm MAF. Soon I'll be getting a ported throttle body and Pacesetter LT headers with a cutout and Magnaflow catback exhaust. I know a tune wouldn't be necessary with these mods, but I also hear a tune can wake up even a stock LS1. Is it worth the $150 and a drive up north or mail order to get it tuned after I get all that done?
    i think so and I don't have longtubes. I just had my computer tuned by Frost and am extremely happy. the car seems more responsive and ready to go.
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    None Shall Pass Knight's Avatar
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    It's worth the money. In order to take full advantage of the mods you're doing, you are definately going to want to get a tune.

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    Just me Y2KPewterSS's Avatar
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    I would say yes to the tune, headers tend to make an LS1 run rich, tuning will straighten it out.

    I would ditch the 85mm and get the stock one back on.

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    I don't sell out! blackSS01's Avatar
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    Quote Originally Posted by Y2KPewterSS View Post
    I would say yes to the tune, headers tend to make an LS1 run rich, tuning will straighten it out.

    I would ditch the 85mm and get the stock one back on.
    Nothing wrong with the 85mm if its a GM Maf. Usually they need tunes and he is getting one I believe.

    GET A TUNE!
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    Member Speed_kills_WS6's Avatar
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    I did the exact same stuff and decided to go get a dyno tune. I only got 6 hp out of the tune. Of course, it was bad weather conditions with extreme heat and humidity, but a mail order tune would've been more appropriate. Save some cash anyway. Least I got the cats, smog, etc. tuned out...

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    TunedbyFrost.com Tuner Frost's Avatar
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    Quote Originally Posted by Speed_kills_WS6 View Post
    I did the exact same stuff and decided to go get a dyno tune. I only got 6 hp out of the tune. Of course, it was bad weather conditions with extreme heat and humidity, but a mail order tune would've been more appropriate. Save some cash anyway. Least I got the cats, smog, etc. tuned out...

    The 85mm MAF reports a higher frequency than the OEM counterpart which fattens up the AFR at WOT. Some cars pick up 15 easy HP going from 11:1 to 12.5-12.9:1 and some may only pickup 1-2HP (unusual but it can happen). Even for the car that rolls in with perfect 12.9:1 AFR already, there is typically 5-7rwhp more to find in timing. Nothing is absolute though!

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    I don't sell out! blackSS01's Avatar
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    Quote Originally Posted by Frost View Post
    The 85mm MAF reports a higher frequency than the OEM counterpart which fattens up the AFR at WOT. Some cars pick up 15 easy HP going from 11:1 to 12.5-12.9:1 and some may only pickup 1-2HP (unusual but it can happen). Even for the car that rolls in with perfect 12.9:1 AFR already, there is typically 5-7rwhp more to find in timing. Nothing is absolute though!
    I thought the 85mm leaned it up at WOT Good thing I got money saved for a dyno then

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    Quote Originally Posted by blackSS01 View Post
    I thought the 85mm leaned it up at WOT Good thing I got money saved for a dyno then
    Same, going from an 11.1 to a 12.5 AFR would definitly be leaner. But i think a 12.5 is more of where you want it at WOT

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    Junior Member jpn8801's Avatar
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    I Have a darn near Stock Ws.6 (SLP Air Lid & Flowmaster Catback Exhaust) and was thinking about a tune from Frost, Would it really be beneficial? If he can WAKE UP my car, its SO worth the $125 IMO
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    TunedbyFrost.com Tuner Frost's Avatar
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    Quote Originally Posted by jpn8801 View Post
    I Have a darn near Stock Ws.6 (SLP Air Lid & Flowmaster Catback Exhaust) and was thinking about a tune from Frost, Would it really be beneficial? If he can WAKE UP my car, its SO worth the $125 IMO
    It's worth more than a handheld, but really you would get more out of it if you made some other mods first. That Flowmaster exhaust unfortunately has proven on the dyno that I tune on to gain almost nothing over stock. I could give you a sales pitch but I'd rather be honest. You may not gain but 5-10 rwhp. You will get lowered fan temps, top speed limiter and skip shift removed, improved knock handling and more small changes. You'd be better off starting with a set of LTs.

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    Junior Member Ironwolf's Avatar
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    So Frost, how much HP gain would you say if I got a tune through you after getting my LT headers, catback exhaust and cutout? Just a ballpark...also, any mileage gains? After doing my SLP cold air intake, smooth bellows, MAF and my ported and polished throttle body, I've seen an almost 2mpg increase

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    Junior Member 02 Camaro SS SLP's Avatar
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    Quote Originally Posted by blackSS01 View Post
    Nothing wrong with the 85mm if its a GM Maf. Usually they need tunes and he is getting one I believe.

    GET A TUNE!
    can u give me the link were u got the GM MAF please!

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    I would guess they have it. Last I knew they were a sponsor on this site also.

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    Senior Member MrMasterCraft's Avatar
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    Quote Originally Posted by Ironwolf View Post
    So Frost, how much HP gain would you say if I got a tune through you after getting my LT headers, catback exhaust and cutout? Just a ballpark...also, any mileage gains? After doing my SLP cold air intake, smooth bellows, MAF and my ported and polished throttle body, I've seen an almost 2mpg increase
    He wouldn't give me a guesstimate, because as he said before "nothing is absolute". And also, just as he said before, unless you've got the basic LTs, it would be better off to save your money, get some, and then get it tuned.

    Just repeating what the best tuner out there, has stated

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    Junior Member 02 Camaro SS SLP's Avatar
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    Quote Originally Posted by 35th-ANV-SS View Post
    http://www.gmpartsdirect.com/

    I would guess they have it. Last I knew they were a sponsor on this site also.
    u got a part # or anything cuz i cant find it.

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    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by 02 Camaro SS SLP View Post
    u got a part # or anything cuz i cant find it.
    PM Pajeff02

    He ordered one from there. He would have the part number probably. I believe it is a universal one. Comes with an adapter.

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    Junior Member 02 Camaro SS SLP's Avatar
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    Quote Originally Posted by 35th-ANV-SS View Post
    PM Pajeff02

    He ordered one from there. He would have the part number probably. I believe it is a universal one. Comes with an adapter.

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    Moderator 35th-ANV-SS's Avatar
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    Quote Originally Posted by 02 Camaro SS SLP View Post

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