Opinions please !!??!!
Thread Starter
|
Elder User
Joined: Jan 2011
Posts: 784
Likes: 0
From: Over the hump in Pahrump
Opinions please !!??!!
I'm going to install pacesetter long tubes #70-2223's on my basically stock 5.8 in my 90 F250 going over to the right side in 2 1/2 coming together in 3" thru the converter (hi-flow) out to a 3" short Magna-flo 2 chamber muffler then exit behind the right rear tire with 3" (whew) !!!
Gonna get a new Y-pipe in 2 1/2" ... do I really need to do the "Y" in mandrel bends or just go with what the shop does??? (lots cheaper)
Future mods are a Crane 444232 cam, new lifters and 1.7 rockers and a rebuild... not building for speed just towing, torque, and MPG (and some nice noise) ... Thank you, Dave
Gonna get a new Y-pipe in 2 1/2" ... do I really need to do the "Y" in mandrel bends or just go with what the shop does??? (lots cheaper)
Future mods are a Crane 444232 cam, new lifters and 1.7 rockers and a rebuild... not building for speed just towing, torque, and MPG (and some nice noise) ... Thank you, Dave
Logistics Pro
Joined: Mar 2012
Posts: 3,507
Likes: 121
From: Oregon
To be honest I would get the Y pipe done in mandrel bends. Yes it will be more expensive, but you want the exhaust to flow well and making the Y pipe restrictive while everything else has good flow is just dumb in my opinion. Don't want to sound rude at all, just my $0.02
FTE Chapter Leader
Joined: Dec 2007
Posts: 1,931
Likes: 16
From: Edmonton, Alberta
To be honest I would get the Y pipe done in mandrel bends. Yes it will be more expensive, but you want the exhaust to flow well and making the Y pipe restrictive while everything else has good flow is just dumb in my opinion. Don't want to sound rude at all, just my $0.02
Thread Starter
|
Elder User
Joined: Jan 2011
Posts: 784
Likes: 0
From: Over the hump in Pahrump
My other option is to go to 2 3/4 "Y" pipe material .... being retired doesn't leave me a big budget to spend on my truck 
and I must travel 60+ mi. to the only shop that works with mandrel bends !!!
and I must travel 60+ mi. to the only shop that works with mandrel bends !!!
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
My 460 has 2 1/2" head pipes.
I don't think your 351 is going to need more CFM.
DO go with the mandrel bends if you can afford it.
Lots less restriction and turbulence.
Up here in the salt belt crinkle pipes will eat themselves alive in just a couple of winters.
I don't think your 351 is going to need more CFM.
DO go with the mandrel bends if you can afford it.
Lots less restriction and turbulence.
Up here in the salt belt crinkle pipes will eat themselves alive in just a couple of winters.
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
2.5" pipe bent in the muffler shop hydraulic bender produces a pipe with an effective cross section of less than 2" for a 90deg bend, so regardless what you put behind it your motor is breathing through something like 1.85" head tubes. I had a muffler shop Y-pipe on my 5.8 before I hand built a mendrel version and the difference between the two was night and day.
Thread Starter
|
Elder User
Joined: Jan 2011
Posts: 784
Likes: 0
From: Over the hump in Pahrump
For the "Y" and the CAT I was quoted $400.00 for the job !!! How is that ??? Dave
Trending Topics
Thread Starter
|
Elder User
Joined: Jan 2011
Posts: 784
Likes: 0
From: Over the hump in Pahrump
2.5" pipe bent in the muffler shop hydraulic bender produces a pipe with an effective cross section of less than 2" for a 90deg bend, so regardless what you put behind it your motor is breathing through something like 1.85" head tubes. I had a muffler shop Y-pipe on my 5.8 before I hand built a mendrel version and the difference between the two was night and day.
Dave
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
Elder User
Joined: Jan 2011
Posts: 784
Likes: 0
From: Over the hump in Pahrump
To be honest I would get the Y pipe done in mandrel bends. Yes it will be more expensive, but you want the exhaust to flow well and making the Y pipe restrictive while everything else has good flow is just dumb in my opinion. Don't want to sound rude at all, just my $0.02
I suppose I get some E-mail about that "blonde" crack... OH WELL ... Dave
Senior User
Joined: Jun 2011
Posts: 382
Likes: 0
From: Milford, CT
Sounds like you're in the same situation as me, no budget and no shops in my area. I have flex on temporarily, and am definitely going to have a mandrel bent pipe made up as soon as possible; for the reasons Conanski has already mentioned.
-Mike
-Mike
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
My truck is "NON-CATALYST" on the emissions sticker.
I put my exhaust together for under $200, but I have a MIG, and I like to use it!
Dual 2 1/2" in, 3" out all welded Walker brand school bus muffler and a 3" stainless Magnaflow universal tailpipe.
It sounds like a bus.. or a dump truck.
"Throaty", but it won't rot and flows plenty for my application.
Thread
Thread Starter
Forum
Replies
Last Post