Mac Headers...... here we go again
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Joined: Nov 2003
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From: Bay Area/ UCI-VDC norte
Mac Headers...... here we go again Im wonderin, btw i used the search button, i have a b1 cam and was wonderin what gains i could see from a set of macs with true duals....... im lookin for 25 rwhp, is that happenin ?
For 150 bucks Macs are TOTALLY worth that and then some. I got 21 rwhp out of my Macs on a STOCK INTERNAL motor and they weren't even modded. 25-30 rwhp on a cammed motor should be a cake walk especially if you use better collectors and port out the "lip" on the primaries. Macs are an excellent value mod.
Thread Starter
TECH Regular
Joined: Nov 2003
Posts: 488
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From: Bay Area/ UCI-VDC norte
im ultimately lookin to get 390-400 rwhp
with a B1 cam...SLP U/D pulley..... Macs & tru duals...... Tuning..... lid, anything else i should add?
its a 2002 345 hp pkg SS with 3,73 gears
with a B1 cam...SLP U/D pulley..... Macs & tru duals...... Tuning..... lid, anything else i should add?
its a 2002 345 hp pkg SS with 3,73 gears
Launching!
Joined: May 2004
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You might as well get LT's now. Because after a cam you will need them later. Coated Pacesetter's are really affordable, under 400 bucks. Especially if you buy those Mac's then sell them a little higher, make like 75 bucks or something.
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Originally Posted by greekss
i couldnt beat the 150 price tag of the macs with 02 simms
and C5 Forever: i've seen macs support plenty of power, if he ports them like josh said and runs the true duals i dont see him gaining much by switching over to LT's. and duals > y pipe setup in terms of power under the curve.
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Launching!
Joined: Mar 2003
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From: McKinney
Originally Posted by jrp
damn, smokin deal, im a LT fan but i dont think even i could of passed that up.
and C5 Forever: i've seen macs support plenty of power, if he ports them like josh said and runs the true duals i dont see him gaining much by switching over to LT's. and duals > y pipe setup in terms of power under the curve.
and C5 Forever: i've seen macs support plenty of power, if he ports them like josh said and runs the true duals i dont see him gaining much by switching over to LT's. and duals > y pipe setup in terms of power under the curve.
I had a friend with Macs on his ATI procharged T/A and he put down 548 HP thru them. I made the below #'s without the LS6 intake, throttle body or a pulley. I think 390 is attainable with my T1. I just installed the LS6 intake and waiting for mt\y TB to get here. I will have it on a dyno as soon as I get my TB from Jantzer.
Good deal on the Macs!
Derek
Originally Posted by greekss
but is 390 attainable with my b1 ??
I see you dove on those headers like I suggested 
You will be happy with them, if you have any extra money left over, I'd suggest getting the flanges on them cut off and replaced. That will gain you another couple of hp. It's something I've been needing to do for awhile. Since you are getting duals done, have them do the flanges as well.
You will be happy with them, if you have any extra money left over, I'd suggest getting the flanges on them cut off and replaced. That will gain you another couple of hp. It's something I've been needing to do for awhile. Since you are getting duals done, have them do the flanges as well.
For $150 you'd be crazy not to get them! I had a set of MACs with my bolt-on set-up and loved them. Easy install, great ground clearance and about 20rwhp (with my factory cats welded in the MAC Y!). I sold mine for $300, so you are getting a great deal.