go with pacesetter or stay with mac?
10-31-2003, 12:55 PM
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go with pacesetter or stay with mac? hey all. since pacesetter longtubes are at a great price right now, i was thinking about going with them and selling my mac's. but i was wondering what kind of gains could be expected between the 2 with my mods? also, i'm looking to do a cam, ls6 intake, and bigger valves install and porting my heads late next year so i know the longutbes will help there but again how much will they help? any info is appreciated. 
10-31-2003, 01:34 PM
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I would, but I hate the sound of Mac's after having them for a year and a half. I went with Pacesetters on my current car. If anything you will at least pick up some low end torque.
10-31-2003, 02:22 PM
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I'm installing a set of Coated Pacesetters right now along with my Patriot heads and TSP cam. For the price of these headers I don't think you could go wrong. I will no more about performance of them in a couple of days.
10-31-2003, 02:49 PM
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Originally Posted by ngozer
hey all. since pacesetter longtubes are at a great price right now, i was thinking about going with them and selling my mac's. but i was wondering what kind of gains could be expected between the 2 with my mods? also, i'm looking to do a cam, ls6 intake, and bigger valves install and porting my heads late next year so i know the longutbes will help there but again how much will they help? any info is appreciated.
10-31-2003, 05:25 PM
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whats so bad aboutthe way Mac headers sound. i have them with the off road y pipe and loud mouth and they sound completley nasty. if that sound is bad ill take it any day of the week.
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11-01-2003, 07:29 AM
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Do the Pacesetters need porting like the Mac do? There was a lot of weld build up in each each port and the collector in my Macs. I had to use an extra long carbide burr to grind it out of both collectors.
11-01-2003, 07:51 AM
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AFAIK the pacesetter LT's are mandrel bent, should have all that much build up. I haven't read anything about anyone who gets them needing to mess with them much at all other then just bolting them on their car. Good performances gains all around, I don't think many are unhappy about their purchase of the pace LT's.
01-16-2004, 11:36 AM
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Found this thread in a search and I have the same questions. Anyone have any comparos dyno or track wise from MACs to Pacesetters?? My car is currently just bolt-ons but soon will be doing a cam and maybe before the end of the year doing heads also. Right now these are the only LT's I am considering for the price since I am on a very tight budget. I dont plan to by the y-pipe, i would like to stick with duals so any help on this would be greatly appreciated
Found this thread in a search and I have the same questions. Anyone have any comparos dyno or track wise from MACs to Pacesetters?? My car is currently just bolt-ons but soon will be doing a cam and maybe before the end of the year doing heads also. Right now these are the only LT's I am considering for the price since I am on a very tight budget. I dont plan to by the y-pipe, i would like to stick with duals so any help on this would be greatly appreciated
01-16-2004, 07:43 PM
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There is probably not much of a gain IMO between the two in the upper RPM range because the Mac's do flow well with some modifications. I'm going to cut off the header to Y pipe connection and weld a 3 inch pipe in place because the ball flange disrupts the exhaust flow in that area and should flow a little better for my setup along with a new flowmaster collector.
01-17-2004, 12:28 PM
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I have a new set of mandrel bent duals with X pipe, dynomax bullets, and turnouts for $350.......that is if you want to reap the full benefit of free flowing high scavenging exhaust. Lighter, cheaper,more power than ORY + catback.......Oh and it'll sound killer too!!!!!!!!!!
01-17-2004, 12:34 PM
#19
for those curious ill be staying with my macs
i cut the ballflanges off and made 3" collectors and next time i have them off ill be porting out the primary welds
lt's may make a little bit more down low but my car stays above 4500 at the track anyways
i cut the ballflanges off and made 3" collectors and next time i have them off ill be porting out the primary welds
lt's may make a little bit more down low but my car stays above 4500 at the track anyways
01-17-2004, 02:41 PM
#20
If you open up the collector, and get rid of the ball flanges on the Macs it will completely change the sound of them and provide more power..
IMO it's a waste of time. Cut off the ball flanges, and put gears in the car. You'll notice a MUCH bigger difference than wasting your time selling, and swapping headers for a mere 5-8 ft lbs of TQ....
Josh
IMO it's a waste of time. Cut off the ball flanges, and put gears in the car. You'll notice a MUCH bigger difference than wasting your time selling, and swapping headers for a mere 5-8 ft lbs of TQ....
Josh