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Author
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Topic: "H" PIPE OR "X" PIPE FOR 289 ?
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johnmustang
Gearhead Posts: 4504
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001
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posted 12-27-2001 08:31 PM
   
Which would work better on a 65, 289, 4bbl, automatic, this motor will have 300 - 325 horse and will be in a 65 2+2 fastback. Which will give me more extra ponies in the 289? What are the advantages and disadvantages of each ? I will be going by your recomendations as to which one to put on the car. I had one guy tell me, not to use either, just run the system from exhaust manifold straight back to the muffler then to the tail pipe, not to meld the two pipes together. I am not sure which mufflers to go with , but , kinda leaning towards flowmaster, what are your thoughts on this ? Thanks in advance to all of you for your input to these questions  JOHN ------------------
65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member: Vancouver Island Mustang Association
M&M #1710
MyPhotoPage
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Fastymz
Moderator Posts: 12015
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 12-27-2001 08:36 PM
Well I like the H-pipe,but I also like big as$ scoops on classic stangs.
I have always read and been told that the H-pipe will give you little more low end.But I know for sure that some of the others guys have other opinions.SCOOP ------------------
65 coupe,351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240 https://mustangsandmore.com/ubb/Fastymz.html
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67 Fastback
Gearhead Posts: 684
From: Beaverton, Oregon
Registered: Aug 99
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posted 12-27-2001 08:42 PM
This was discussed rather fully just a while ago. Check this thread for details:https://mustangsandmore.com/ubb/Forum1/HTML/005625.html Dang code, too many systems too little brain... 
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Jerry
www.67Fastback.com
"The danger in communication is the illusion that it has been accomplished."
G.B. Shaw [This message has been edited by 67 Fastback (edited 12-27-2001).]
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Fastback68
Gearhead Posts: 1746
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 12-27-2001 10:14 PM
For what it's worth, I've been reading everything I can on this subject for months (including here at M&M), and at the end of the day I'm going to stick with straight pipes. SteveW is just too convincing!
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Rustang
Gearhead Posts: 504
From: Clarion PA
Registered: Nov 2000
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posted 12-28-2001 05:22 AM
There's a good article in a recent Hot Rod magazine where they test a hi 10 second street car with open headers, h-pipe with muffs, and x pipe with muffs. The x-pipe was quickest of all three! (even open headers)
A friend of mine runs an xpipe on his 67 camaro, and it scavenged so well that it was cherrying the headers. I know he had to change some things in response to this, but the end result is the car ran better. ------------------
'68 mustang 351 clevor- 10.92@124
'67 Stang, 351W -11.18@118
'69 351C Torino-14.90@100
'78 Pickup 351W-15.56@88
'79 Pickup 460 ET=??
http://www.rustang-racing.cityslide.com/contents/contents.cfm/712231
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