MAC mid lengths and MAC ORY?
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Originally Posted by Bird-Of-Prey
With all do respect, these are absolutly false statements. Macs do have horrible catted Y-pipes compared to their ORY. The difference in the MACs vs LTs is under the curve. You will gain some lower end torque with the LTs, however the difference in top end is hardly even measurable. I suggest you do a search as it has been covered more times than anything else on this forum.
I didn't think I was losing my mind...
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Originally Posted by Cop Car
its been dyno proven that mac mids dont net gain you any hp. the hp gains seen when people switch to mac mids is the replacing of cats. dont take my word for it, do a search.
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Originally Posted by Hennytime
wow, now im going to have to spend the 75 bucks just to prove you wrong on this one.
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Originally Posted by Cop Car
use 00-02 manifolds and the same cats, or no cats. same y pipe, same catback, change only the stock manifolds for macs. dont cry when you get the results
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Originally Posted by Cop Car
use 00-02 manifolds and the same cats, or no cats. same y pipe, same catback, change only the stock manifolds for macs. dont cry when you get the results
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I even told you what i made on the dyno going from MACs to LTs
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Macs do net a gain, I love the added SOTP feel.
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Originally Posted by Cop Car
use 00-02 manifolds and the same cats, or no cats. same y pipe, same catback, change only the stock manifolds for macs. dont cry when you get the results
https://ls1tech.com/forums/showthrea...light=macs+lts
However I do agree that if going from 00-02 manifolds to shorty headers there would minimal if any gain.
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I ran the MAC's for a couple of years and loved them. Easy to install and great ground clearance. A downside is the weld bead on the inside of the primary edge. So I ported the inside primaries to the correct measured inside diameter. I also had a Flowmaster collector welded in to remove the rasp.
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Easy to install and great ground clearance. A downside is the weld bead on the inside of the primary edge. So I ported the inside primaries to the correct measured inside diameter
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Originally Posted by Cop Car
do whatever you guys want. "longtubes or no tubes"
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Pacesetter headers and ORY are good products and make good power...however, their not the greatest header ever made. There are other alternatives out there that sometimes fit peoples budgets/plans better than LTs would.
Some folks just don't see that though I suppose...
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I gained 15rwhp and 16rwtq switching from Stock headers and ory to MAC/ORY. I still have them with my Procharger making 500rwhp/490rwtq on a mustang dyno. So I would say they work well enough.
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i made 400rwhp through mine, super easy install and my car is pretty low and it rarely scrapes.
info on my car and graph here: https://ls1tech.com/forums/dynamometer-results-comparisons/476349-tr230-224-a4-dyno.html
info on my car and graph here: https://ls1tech.com/forums/dynamometer-results-comparisons/476349-tr230-224-a4-dyno.html
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Originally Posted by WS6Drop
Well I made 370 RWHP unlocked with "GASP!" the catted Y pipe. I really don't think they are nearly as bad as they are made out to be.