Header question

bigred90gt · 03-18-2003, 04:41 PM

I have a set of MAC equal length shorties installed right now and they look like **** and I really didn't notice that much gain after installation. I've been thinking about getting some new headers, but dont know what to get. It is a toss-up between longtubes and unequal shorties. I dont need brand advice, I've read enough testimonials. What are the advantages/disadvantages of one over the other? Examples are ease of installation, hp gain/loss, tq gain/loss. Any help is greatly appreciated.

Caymon

NotchJohnson · 03-18-2003, 11:21 PM

Well, mac long tubes are definitely a royal PITA. I can testify to that.

MEDIK418 · 03-18-2003, 11:34 PM

The Green thing had a set of BBK equal length shorties before this past week. During the transmission removal, my son noticed someone had welded the exhaust pipe to the collector on the right side header. Instant POS. We had to tear up the pipes to get everything out so I bought him a set of BBK long tubes and H-pipe . . . sort of an early birthday present. Anyway, this was a good chance to compare the two and I can't tell much difference. It seems to have picked up a little in the middle but I think it lost some low end. Not much at all but the urgency it had before seems to have softened a little. He thinks it runs better and he would know better than me. It does sound a little deeper, kinda like we added a few cubic inches. All in all, the sound was the biggest change I can see. Noone has run it hard yet (needs two tires) but that might change this weekend. Test and Tune day in Amarillo.

bigred90gt · 03-19-2003, 12:34 AM

Quote:

Originally posted by MEDIK418
The Green thing had a set of BBK equal length shorties before this past week. During the transmission removal, my son noticed someone had welded the exhaust pipe to the collector on the right side header. Instant POS. We had to tear up the pipes to get everything out so I bought him a set of BBK long tubes and H-pipe . . . sort of an early birthday present. Anyway, this was a good chance to compare the two and I can't tell much difference. It seems to have picked up a little in the middle but I think it lost some low end. Not much at all but the urgency it had before seems to have softened a little. He thinks it runs better and he would know better than me. It does sound a little deeper, kinda like we added a few cubic inches. All in all, the sound was the biggest change I can see. Noone has run it hard yet (needs two tires) but that might change this weekend. Test and Tune day in Amarillo.

Let me know the difference after you run it. I think this will be a good chance for comparison. I'd appreciate it.

Caymon

bigred90gt · 03-24-2003, 12:38 AM

How did the longtubes work out at the track? Was it a better time?

03-18-2003, 04:41 PM	#1
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	Header question I have a set of MAC equal length shorties installed right now and they look like **** and I really didn't notice that much gain after installation. I've been thinking about getting some new headers, but dont know what to get. It is a toss-up between longtubes and unequal shorties. I dont need brand advice, I've read enough testimonials. What are the advantages/disadvantages of one over the other? Examples are ease of installation, hp gain/loss, tq gain/loss. Any help is greatly appreciated. Caymon __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

03-18-2003, 11:21 PM	#2
NotchJohnson Registered Member Join Date: Oct 2001 Location: Florida Keys Posts: 593	Well, mac long tubes are definitely a royal PITA. I can testify to that. __________________ 89 notch-finally not stock!! ported gt40's, ported cobra intake, 65mm tb, 75mm maf, mac cai, lt's,prochamber, fms 1.6 rr, 125 shot.

03-18-2003, 11:34 PM	#3
MEDIK418 Registered Member Join Date: Mar 1999 Location: Amarillo, Texas, USA Posts: 780	The Green thing had a set of BBK equal length shorties before this past week. During the transmission removal, my son noticed someone had welded the exhaust pipe to the collector on the right side header. Instant POS. We had to tear up the pipes to get everything out so I bought him a set of BBK long tubes and H-pipe . . . sort of an early birthday present. Anyway, this was a good chance to compare the two and I can't tell much difference. It seems to have picked up a little in the middle but I think it lost some low end. Not much at all but the urgency it had before seems to have softened a little. He thinks it runs better and he would know better than me. It does sound a little deeper, kinda like we added a few cubic inches. All in all, the sound was the biggest change I can see. Noone has run it hard yet (needs two tires) but that might change this weekend. Test and Tune day in Amarillo. __________________ 1986 four-eyed LX coupe, 358 Cleveland, Tremec TKO600/centerforce clutch, dish cut Probe forged pistons, comp cams hyd.roller cam, .579/.588@224/230, Edel.performer, 670 holley street avenger, CPR custom built long tubes, ported and polished 4bbl heads, manley valves, beehive springs, MSD peo-billet dist/MSD6AL, fluidamper, 5 lug conv. with 17x8 bullits there's more but it's still not finished yet. Oh, and the oldest boy is turning his 89 GT into a FFR cobra this next summer.

03-24-2003, 12:38 AM	#5
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	How did the longtubes work out at the track? Was it a better time? __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

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