PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

SD tune yes, no. maybe?

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Old Apr 15, 2006 | 01:34 PM
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Default SD tune yes, no. maybe?

well i went to a dyno day and was talkin to some people there seeing what kinda tune and most of the cars were running SD tune's. are these safe. are they good. any ups or downs? ive got a cam only car. HPE "s" cam with long tubes and ported t.b. i will eventually get a 90/90 setup i just need to save some $$$$. anyways let me know your opinions or experience with these. thanks guys
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Old Apr 15, 2006 | 01:42 PM
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im wondering the same thing, did they have a piece of pipe in place of the mass air meter
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Old Apr 15, 2006 | 01:50 PM
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Originally Posted by EXILE
im wondering the same thing, did they have a piece of pipe in place of the mass air meter
it was basically a bellows that ran from the t.b to the lid. it looks cleaner imo also
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Old Apr 15, 2006 | 02:03 PM
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Originally Posted by stevensLS1
are these safe.
as safe as the tune is

Originally Posted by stevensLS1
are they good.
as good as the tune performed on them

Originally Posted by stevensLS1
any ups or downs
pros
get to loose your maf
possibly better drivability
possibly more accurate fueling

cons
you have to loose the maf & its ability to compensate for smaller mods
would need to keep an eye on the tune more often
tuning would be necessary basically after each mod no matter how small
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Old Apr 15, 2006 | 02:04 PM
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im in need of another tune with my new mods, i looked at SQR website they say $500 for a S/D tune
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Old Apr 15, 2006 | 03:03 PM
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stick with the MAF ...unless you are pushing 600+HP you won't notice a difference

STICK with the MAF...get someone to dial it in OR simply if you have high LTFT's get someone or do it yourself and simply raise the values in the MAF frequency table..

if you want help PM me... see my sig.. thats bolt ons only.. no heads cam and MAf tune



the only real difference you will *possibly* notice will be immediate throttle response w/o the MAF...which when it comes down to it doesn't really matter that much
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Old Apr 15, 2006 | 03:10 PM
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Stick with the MAF.
SD is only for the cool people.
Somewhere on the inter-web it says they aren't safe.


It really all depends on what you want your car to do. If it's meeting all of your expectations running the MAF then no reason to change it.
If you're an extreme perfectionist, then having an OLSD tune is probably in your future though.
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Old Apr 15, 2006 | 04:02 PM
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i was just mainly curious. ill just stick with the ole MAF and not worry about it anymore . thanks for all the input guys!
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Old Apr 15, 2006 | 04:30 PM
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Originally Posted by stevensLS1
i was just mainly curious. ill just stick with the ole MAF and not worry about it anymore . thanks for all the input guys!
Even if you stick with the MAF, definitely tune your VE table (using SD tuning) then recalibrate your MAF.

My butt o meter tells me I gained a lot of power down low from tuning my VE table.
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Old Apr 15, 2006 | 04:30 PM
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To tune, see the sticky at the top.
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Old Apr 19, 2006 | 01:01 PM
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Default S cam

what are the specs on that cam? Im tuning one and was curious as to what the specs were.

Originally Posted by stevensLS1
well i went to a dyno day and was talkin to some people there seeing what kinda tune and most of the cars were running SD tune's. are these safe. are they good. any ups or downs? ive got a cam only car. HPE "s" cam with long tubes and ported t.b. i will eventually get a 90/90 setup i just need to save some $$$$. anyways let me know your opinions or experience with these. thanks guys
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