Installed new Y-pipe. Impressed with results
#46
#47
The 2000 V10 was the higher-output one with "PI" heads. It had this exhaust flutter that some guys found disturbing to the point of bringing it back to the dealer repeatedly hoping they would do something about it.
Ford eventually came out with the restricted y-pipe for 2001, and retro-fitted it to the 2000's that came back for warranty on the flutter issue.
I think the engineering behind it is, the restrictions elongate the exhaust pulse, which causes more overlap and less resonance.
#48
In theory, replacing just the Y-pipe should not have any effect on the emmisions. The same amount of exhaust gases are going through the new less restrictive y-pipe as the stock pipe. Also remeber a set of headers like the Banks and Thorley headers are 50 emmisions legal and they replace the y-pipe as well as the exhaust manifolds. As long as you leave the stock cat you should pass the sniffer.
#49
You guys think this mod may have negative impact on emmission tests???
Maybe Ford's Y-pipe was developed acording to emission factors???
We'll get mandatory emmission tests here in the near future and wish to know if I should
keep oryginal Y-pipe in a closet.LOL
Thanks.
Maybe Ford's Y-pipe was developed acording to emission factors???
We'll get mandatory emmission tests here in the near future and wish to know if I should
keep oryginal Y-pipe in a closet.LOL
Thanks.
#51
I have not been on this forum in a couple of years, I was just bored at work and wonted to see what was goin on. In 2002 i bought an V10 truck. The forum at that time was buzzing about the Y pipe. My truck was lifted big tires and the whole thing, I used it to tow a huge toy hauler. i needed more power, I did all different stuff to the exhaust. The best results for me was the stock Y pipe, take out the cat, and use a flowmaster 3 chamber Muff.
#53
Over the years there has been alot written on the Y pipe mod, and for the life of me I cant bring myself to do it I have done a search and it apperas to me that some have experienced a loss of low end torque, which I cannot have (tow boat). The question I have is how could it be some people love this mod and say it has helped out all the way through the power band, while others say they have a noticeable loss of low end power. If everybodys results were the same (positive) I would have done it by now. Just curious.......ok lets hear it
#54
cc322, what's interesting is all the people who've done it in the past two years or so, I don't think one single person has complained about loss of low-end torque.
But before that? I don't know. It was 50/50 maybe.
I could be wrong
If you look further into all those people who've complained about loss of low-end, did they do anything else BESIDES just the y-pipe at the time? Did any of them do headers, that may have been large-tube headers?
Go too big on the primary pipes? Go too far away from equal-length primaries (sure to screw up scavenging at low RPMs) or some other design of the y-pipe?
Just curious, I'd love more research done on this...
But before that? I don't know. It was 50/50 maybe.
I could be wrong
If you look further into all those people who've complained about loss of low-end, did they do anything else BESIDES just the y-pipe at the time? Did any of them do headers, that may have been large-tube headers?
Go too big on the primary pipes? Go too far away from equal-length primaries (sure to screw up scavenging at low RPMs) or some other design of the y-pipe?
Just curious, I'd love more research done on this...
#56
Over the years there has been alot written on the Y pipe mod, and for the life of me I cant bring myself to do it I have done a search and it apperas to me that some have experienced a loss of low end torque, which I cannot have (tow boat). The question I have is how could it be some people love this mod and say it has helped out all the way through the power band, while others say they have a noticeable loss of low end power. If everybodys results were the same (positive) I would have done it by now. Just curious.......ok lets hear it
Then you have folks that say.....
So, what should I do?
#57
#58
#59
The way the history goes, from the guys who went through it with the '00 trucks was...
The 2000 V10 was the higher-output one with "PI" heads. It had this exhaust flutter that some guys found disturbing to the point of bringing it back to the dealer repeatedly hoping they would do something about it.
Ford eventually came out with the restricted y-pipe for 2001, and retro-fitted it to the 2000's that came back for warranty on the flutter issue.
I think the engineering behind it is, the restrictions elongate the exhaust pulse, which causes more overlap and less resonance.
The 2000 V10 was the higher-output one with "PI" heads. It had this exhaust flutter that some guys found disturbing to the point of bringing it back to the dealer repeatedly hoping they would do something about it.
Ford eventually came out with the restricted y-pipe for 2001, and retro-fitted it to the 2000's that came back for warranty on the flutter issue.
I think the engineering behind it is, the restrictions elongate the exhaust pulse, which causes more overlap and less resonance.
My question now is anyone with a 2000 "fat y-pipe" replace it and have good results?
#60