The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-21-2015, 07:58 PM   #1
superwade57
Registered User
 
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
x pipe vs no x pipe sound clips inside

So when I was looking for it I couldn't find it. So I made it. Here are the links to two you tube videos of my truck with and with out an x pipe. My set up is a 355 full tube flow tech headers. 2.5 in. Exhaust 40 series Flowmaster. The exhaust is all the same except I put in a flow tech x pipe kit and the x lands right under my Trans tailshaft. So now there is an apples to apples sbc x pipe vs divorced pipes sound clips. Truck is an 86 retrofit to 74 355/t56 4.11eaton posi. With a 6/8 static drop. Let me know what you guys think!

X pipe
http://youtu.be/7vyaos7n62U


divorced pipes
http://youtu.be/lx2iufkj8mI
superwade57 is offline   Reply With Quote
Old 02-21-2015, 09:09 PM   #2
73kay
Senior Member
 
Join Date: Jul 2014
Location: Indy, IN
Posts: 637
Re: x pipe vs no x pipe sound clips inside

I dig the old oem dog dishes. I have the exact same setup with the long tube headers,xpipe, and 40 series and I love it.
__________________
Andrew

1953 3100 292 T5
1985 K5 Blazer 350 700R4 208
73kay is offline   Reply With Quote
Old 02-22-2015, 07:06 AM   #3
Ohchiiit
Registered User
 
Ohchiiit's Avatar
 
Join Date: Feb 2015
Location: Huntsville
Posts: 72
Re: x pipe vs no x pipe sound clips inside

https://www.youtube.com/watch?v=QFm06JTgG50

heres mine, im a divorced pipe kinda guy!
Ohchiiit is offline   Reply With Quote
Old 02-22-2015, 08:25 AM   #4
burger
Registered User
 
Join Date: Sep 2005
Location: philly burbs
Posts: 160
Re: x pipe vs no x pipe sound clips inside

Thanks for taking the time to put this together.

Adding the x pipe smoothed out the exhaust note, especially under throttle. If I were sitting in my house and heard your x pipe truck drive by, I would think it were a late model muscle car, like perhaps a 00-ish Camaro. The before clip is straight up vintage muscle car rattling through two chambers (that's what the 40 series used to be called, at least around my high school).

Cool stuff.

Not to jack the thread, but what do you have for cam, heads, and compression? Also, how did you modify the T56 to get the shifter moved forward?


Thanks
Ed
burger is offline   Reply With Quote
Old 02-22-2015, 10:34 AM   #5
superwade57
Registered User
 
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
Re: x pipe vs no x pipe sound clips inside

It's a .30 over police interceptor motor out of a 71. Not sure about can but heads are stock 882 heads. I put bucket seats in
5 he shifter actually lands almost perfectly in the cab
superwade57 is offline   Reply With Quote
Old 02-22-2015, 11:41 AM   #6
blazer2007
Registered User
 
Join Date: Jan 2007
Location: vernon b.c.
Posts: 3,022
Re: x pipe vs no x pipe sound clips inside

Is there a certain place to mount X pipe . Before ex. or after or ?
blazer2007 is offline   Reply With Quote
Old 02-22-2015, 12:03 PM   #7
superwade57
Registered User
 
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
Re: x pipe vs no x pipe sound clips inside

Technically you should start with a cold exhaust. Draw a line from the header to the back with a wax pen. Start your truck. The wax will melt off in one spot first. That is where your exhaust pulses build up and where a crossover will do the most good. Otherwise the closer to the front the better. Usually under the tail shaft or shortly before.
superwade57 is offline   Reply With Quote
Old 02-22-2015, 12:09 PM   #8
superwade57
Registered User
 
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
Re: x pipe vs no x pipe sound clips inside

I was told the crossover would mellow it out and it does but it doesn't take away all my lump. The video of the x is muffled because my phone was sitting in the grass. Once it's nicer I'll do it over. What I really like is that it does sound more late model upon acceleration. The Rapp and Crack is a great sound for a mud truck or even a hot rod heck even muscle car but to me it's a little more old school of a sound. I love it and it has its place but to me this build isn't it. It's a slammed truck more stream lined and a little off the beaten path around here. And I wanted a sound to match
superwade57 is offline   Reply With Quote
Old 02-22-2015, 12:48 PM   #9
enaberif
Registered User
 
Join Date: Jan 2009
Location: Calgary, AB
Posts: 1,181
Re: x pipe vs no x pipe sound clips inside

I prefer the x-pipe over the divorced but I also do not like the sound of 40s and think they are obnoxious.
enaberif is offline   Reply With Quote
Old 02-22-2015, 03:59 PM   #10
1974ChevyC30
Registered User
 
1974ChevyC30's Avatar
 
Join Date: Aug 2014
Location: United States
Posts: 21
Re: x pipe vs no x pipe sound clips inside

I run straight pipes with no crossover myself. I think it sounds better on our older engines personally and it also makes diagnosing/observing the individual cylinder banks easier. I run Hooker long tube headers as well and I love the crackle!
__________________
1974 Chevy C30 Cheyenne Super Camper Special w/ Built 454/SM465(Daily Driver)

2008 Chevy Silverado 4.8L/4L60-E(Totaled)

"Government is not the solution to our problem, government is the problem."-Ronald Reagan
1974ChevyC30 is offline   Reply With Quote
Old 02-22-2015, 10:34 PM   #11
Hankster
Registered User
 
Hankster's Avatar
 
Join Date: Jan 2013
Location: Nacogdoches, Texas
Posts: 895
Re: x pipe vs no x pipe sound clips inside

Thank you for this! I have not only learned that my flomasters arent 40s, they are 50s I also learned I want to run an open X pipe..
__________________
Current Build
89 s10 ecsb 2wd 4.3/700r4 50k OG Miles
Instagram- shaggin_s10

'86 Chevrolet C10 Custom Deluxe - Gen V 454 - 4l80e - welded 12 bolt
(Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=611611 ) SOLD
Hankster is offline   Reply With Quote
Old 02-22-2015, 11:15 PM   #12
motornut
78K & 79C Jimmys
 
motornut's Avatar
 
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
Re: x pipe vs no x pipe sound clips inside

I've got dual 2.25 flowmaster 40s with H on a stock 305-2B.
Love it.sure dosnt sound stock.
The other is 2.25 cherry bombs ,
Not any quieter lol.
Both trucks have short pipes.

Out on the highway
https://m.youtube.com/watch?v=i2biGrMmw1o
__________________
John
1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
motornut is offline   Reply With Quote
Old 02-22-2015, 11:09 PM   #13
SkinnyG
Registered User
 
SkinnyG's Avatar
 
Join Date: Feb 2012
Location: Beautiful BC, Canada, eh?!
Posts: 2,265
Re: x pipe vs no x pipe sound clips inside

This is mine, cheap-o "turbo" mufflers, and an X-pipe.

https://www.youtube.com/watch?featur...HoiBIbWJc#t=41
__________________
1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS
1977 Silverado: Shortboxed & dropped, potato-potato
V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag
Lotus Super 7 Replica: Scratch-built street-legal rollerskate
SkinnyG is offline   Reply With Quote
Old 02-23-2015, 12:50 PM   #14
mattcrp1
Registered User
 
mattcrp1's Avatar
 
Join Date: May 2010
Location: Mountain House, CA
Posts: 555
Re: x pipe vs no x pipe sound clips inside

I like the h-pipe sound under throttle but dig the idle on the divorced pipes. I got an LS conversion in my set up and I think after hearing this I will go h-pipe. Thanks of sharing.
__________________
My Chevy habit is paid for by Ford diesels...
Here is my SLOW LS install: http://67-72chevytrucks.com/vboard/s...55#post6456355
Caliper Rebuild: http://67-72chevytrucks.com/vboard/s...d.php?t=613748
Upper Control Arm Bushings: http://67-72chevytrucks.com/vboard/s...d.php?t=616974
IG mattcrp1
mattcrp1 is offline   Reply With Quote
Old 02-23-2015, 02:25 PM   #15
Slammed84
Registered User
 
Slammed84's Avatar
 
Join Date: Mar 2014
Location: Tulsa, OK
Posts: 292
Re: x pipe vs no x pipe sound clips inside

Seperate pipes all the way! Might gain a few ponies with an x pipe but the seperate pipes sound old school nasty. X pipe sounds like a newer fuel injection motor.
__________________
84' C-10 Custom Deluxe
97' & 98' C-1500 Silverados
Slammed84 is offline   Reply With Quote
Old 02-24-2015, 01:52 AM   #16
Drizzle
Registered User
 
Join Date: Dec 2014
Location: Knoxville,TN
Posts: 54
Re: x pipe vs no x pipe sound clips inside

Quote:
Originally Posted by Slammed84 View Post
Seperate pipes all the way! Might gain a few ponies with an x pipe but the seperate pipes sound old school nasty. X pipe sounds like a newer fuel injection motor.
Straight pipes all.the way.
http://youtu.be/rfvR588jnmM
Drizzle is offline   Reply With Quote
Old 02-23-2015, 10:19 PM   #17
burger
Registered User
 
Join Date: Sep 2005
Location: philly burbs
Posts: 160
Re: x pipe vs no x pipe sound clips inside

Hey Superwade,

I'm a bench seat guy and will always be a bench seat guy. Would the stiock location T56 shifter work with a bench? Finding a used T56 for a decent price wouldn't be so bad if the mid mount shifter kit weren't so dang expensive. Btw, what did you use for clutch pedals? The 85-87 hydro stuff?


Thanks
Ed
burger is offline   Reply With Quote
Old 02-23-2015, 10:26 PM   #18
superwade57
Registered User
 
Join Date: Jul 2010
Location: Janesville, WI
Posts: 664
Re: x pipe vs no x pipe sound clips inside

Def not work with a bench seat unless you put a pretty deep notch In it, which I was going to do but came across some nice 91 blazer buckets cheap. Regarding clutch pedals, I used a gas motor hyd. Set up from an 87. It was nice for me cause in 84 I believe they started putting center punch dimples in the firewalls. So there wasn't really even any guess work. I used the factory truck master cylinder and a slave from a 91? Camaro since it has a bleeder screw in it. A.couple adapter fittings and poof it was done.
superwade57 is offline   Reply With Quote
Old 02-24-2015, 08:01 AM   #19
Mikec10
Registered User
 
Mikec10's Avatar
 
Join Date: Apr 2011
Location: Cleveland, Ohio
Posts: 293
Re: x pipe vs no x pipe sound clips inside

How do you guys think separate pipes on an efi 5.3 would sound? My swap starts soon once it stops being colder than Alaska lol just curious.
__________________
1980 C10 SWB Yukon 5.3/5 speed 3.73 gears.
Mikec10 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:44 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com