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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-29-2002, 11:23 AM   #1
HotRod929
Registered User
 
HotRod929's Avatar
 
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
H-pipe, balance pipe place ment???

I just bught new headers for my truck and wile i was working on the exhaust i thought i would put in a H-pipe. My only questions is that where should i put it? Right after the headers, further down the pipes or what? Any help would be nice. Thanks Guys

HotRod
__________________
1970 Chevy C-20
350 V-8
Turbo 350 w/ shift kit
Dana 60 w/ 4.10 gears AND Powr-Loc POSI
New Additions:
Summit Headers
135amp alternator
Proform HEI
Edelbrock 1406 600cfm carb
Sunpro Tach
Powr-Loc POSI
Edelbrock Performer RPM Intake
MSD 6A Ignition Box

AIM: HotRod929

Visit My Site: http://1970chevy.netfirms.com/
HotRod929 is offline   Reply With Quote
Old 08-29-2002, 11:48 AM   #2
jeremy martin
Registered User
 
Join Date: Aug 2002
Location: Sacramento California
Posts: 60
H- PIPE

HOTROD929
I HAVE HEARD THAT IF YOU RUN YOUR TRUCK AND PUT SOME SPRAY PAINT ON YOUR EXHAUST AND WHERE IT STARTS TO BURN OFF FIRST THAT IS WHERE THE H-PIPE NEEDS TO BE PLACED. I DONT KNOW IF THAT IS CORRECT JUST WHAT I HEARD. JEREMY
__________________
70 lwb 2wd
64 bug
00 silverado 4x4
00 Impala


"SECOND PLACE IS JUST THE FIRST LOSER"
jeremy martin is offline   Reply With Quote
Old 08-29-2002, 12:29 PM   #3
HotRod929
Registered User
 
HotRod929's Avatar
 
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
Thats very interesting. I never herd of that before. Any other ways anyone? Thanks Jeremy.

HotRod
__________________
1970 Chevy C-20
350 V-8
Turbo 350 w/ shift kit
Dana 60 w/ 4.10 gears AND Powr-Loc POSI
New Additions:
Summit Headers
135amp alternator
Proform HEI
Edelbrock 1406 600cfm carb
Sunpro Tach
Powr-Loc POSI
Edelbrock Performer RPM Intake
MSD 6A Ignition Box

AIM: HotRod929

Visit My Site: http://1970chevy.netfirms.com/
HotRod929 is offline   Reply With Quote
Old 08-29-2002, 12:47 PM   #4
dion
72 Cheyenne
 
dion's Avatar
 
Join Date: Oct 2001
Location: San Diego
Posts: 2,086
Close to the headers.
__________________
Burnout
Idle
1972Cheyenne
1966/67Stouts
dion is offline   Reply With Quote
Old 08-29-2002, 12:48 PM   #5
HvyChevy454
Slowly getting CRSS...
 
HvyChevy454's Avatar
 
Join Date: Jul 2001
Location: Lutz, Florida
Posts: 656
from what i here as close to the headers as possible
__________________
-Nic
Lutz, Fl
My Team Website
The Heavy Chevy Website
------------------
  • 72 Cheyenne 10 LWB GM 12-bolt 3.08 w/ Auburn Posi
    91 454 Edel Performer RPM Intake 750 cfm carb Comp Cam 268/.495 Hedman Headers Dual 3'' Exhaust
  • 71 Cheyenne 20 4x4 Fact. A/C PS PB Tilt Currently in the works...
Speak Softly and Carry A Big Block...
There is No replacement for Displacement...
"If everything seems under control, you're just not going fast enough."
- Mario Andretti

HvyChevy454 is offline   Reply With Quote
Old 08-29-2002, 02:37 PM   #6
RON WOODGEARD
Resident Young Old Dude !
 
Join Date: Jul 2001
Location: Nevada
Posts: 1,948
What JEREMY told you is the way it's supposed to be done, Even though sometimes there is something in the way of doing it, like the tranny,crossmember etc. The reasoning being it's the place where the most backpressure is swirling,IE: building heat.
This came to me from a friend that builds custom exhaust for race cars and streetracers.
RON WOODGEARD is offline   Reply With Quote
Old 08-29-2002, 03:52 PM   #7
HotRod929
Registered User
 
HotRod929's Avatar
 
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
Thanks RON WOODGEARD. what kind of paint should i use? Will just like regular black spraypaint work? I beat it smells pritty bad for a while when the paint is getting burned off.

HotRod
__________________
1970 Chevy C-20
350 V-8
Turbo 350 w/ shift kit
Dana 60 w/ 4.10 gears AND Powr-Loc POSI
New Additions:
Summit Headers
135amp alternator
Proform HEI
Edelbrock 1406 600cfm carb
Sunpro Tach
Powr-Loc POSI
Edelbrock Performer RPM Intake
MSD 6A Ignition Box

AIM: HotRod929

Visit My Site: http://1970chevy.netfirms.com/
HotRod929 is offline   Reply With Quote
Old 08-29-2002, 03:54 PM   #8
E.R. Leonard
Registered User
 
Join Date: Apr 2000
Location: angleton TEXAS
Posts: 367
Jermey has it. It is not as close to the headers as possible. I think you will find it to be 12-18" from the collectors.
__________________
67 C10 LT1 project step side
68 C10 250 short step side original
69 CORVETTE CONV 427, 4spd, 6-pak
99 CORVETTE CONV
78 chevy 2wd blazer
Angleton, Texas
E.R. Leonard is offline   Reply With Quote
Old 08-29-2002, 05:22 PM   #9
RON WOODGEARD
Resident Young Old Dude !
 
Join Date: Jul 2001
Location: Nevada
Posts: 1,948
Any paint except HIGH HEAT.

I also agree it will be a foot to a foot and a half from the collectors.
RON WOODGEARD is offline   Reply With Quote
Old 08-29-2002, 06:03 PM   #10
slam33
Registered User
 
slam33's Avatar
 
Join Date: Aug 2001
Location: Long Beach, Ca
Posts: 1,432
Jeremy Martin is right. Thats what all the test have shown to work. It doesn't have to be a lot of paint, just hit it down one side of the pipe, run it, mark it, cut and weld. Then go back with some laq thinner and take off the rest of the paint
__________________
71 LWB 350/350still working on it but it's going tp be sweet. www.geocities.com/stevemau/slam33page.html

" TARGET=_blank>http://www.geocities.com/stevemau/slam33page.html?1004806705410

</A>
slam33 is offline   Reply With Quote
Old 08-29-2002, 06:24 PM   #11
HotRod929
Registered User
 
HotRod929's Avatar
 
Join Date: Mar 2002
Location: Bondurant, IA but in Worcester, MA for school
Posts: 767
Any particular color easyer to see or does it not matter at all?

HotRod
__________________
1970 Chevy C-20
350 V-8
Turbo 350 w/ shift kit
Dana 60 w/ 4.10 gears AND Powr-Loc POSI
New Additions:
Summit Headers
135amp alternator
Proform HEI
Edelbrock 1406 600cfm carb
Sunpro Tach
Powr-Loc POSI
Edelbrock Performer RPM Intake
MSD 6A Ignition Box

AIM: HotRod929

Visit My Site: http://1970chevy.netfirms.com/
HotRod929 is offline   Reply With Quote
Old 08-29-2002, 11:02 PM   #12
70 Jimmy
aka Crusher, Crushergmc
 
70 Jimmy's Avatar
 
Join Date: Mar 2000
Location: Oregon
Posts: 1,834
Talking

FLOURECENT!!!
__________________
"KEEP IT DOWN!"
70 Jimmy 454 2wd
56 GMC Big Window
"It's funny till someone gets hurt, then it's freakin' hilarious"
70 Jimmy is offline   Reply With Quote
Old 08-29-2002, 11:17 PM   #13
Shane
Account Suspended
 
Shane's Avatar
 
Join Date: Jun 2000
Location: over yonder
Posts: 14,273
The paint method is the way that the old guys used to determine the length of "drag pipes" on Harleys. Back then you couldnt buy aftermarket exhaust that were already "tuned" to the correct length. They would paint a light coat on .... fire up the engine....ride around till the engine and headers got hot...shut off engine....let cool.....and then trim the tubes to the length where the paint burnt off. (told to me by my grandfather - an Ol' Harley Head from way back in the Knucklehead days.... )

Supposedly, this is the point at which the headers were their most effective at scavenging exhaust gases.
Shane is offline   Reply With Quote
Old 08-30-2002, 01:43 AM   #14
68 with 350 TPI
Registered User
 
68 with 350 TPI's Avatar
 
Join Date: May 2002
Location: Wingate NC
Posts: 456
Noting wrong with the paint method as it does work.

But if you want a easy way to do it go and buy yourself a Ray tek heat indacator.

All you will have to do is hold down the button and find the hot spot on the pipes.
Pretty easy to get it right as the ray tek has a lazer pointer that shows you exactly where the heat is comming from.

Just thought I would share a clean and easy way to do it.

Ray Tek's are about 70-80$ and you can get them at any NAPA autoparts
__________________
Life is good with a 6-71 supercharged 355 in a 72 camaro
68 with 350 TPI is offline   Reply With Quote
Old 08-30-2002, 03:08 AM   #15
CoryM
Registered User
 
CoryM's Avatar
 
Join Date: Dec 1999
Location: Surrey, B.C. , Canada
Posts: 874
There is actually an exact temperature where you want the Hpipe to be. I dont know what it is offhand, but will find out. The way it *should* be done is to fine the correct temp, then using a temp gun find out exactly where it is on the exhaust and stick it in. Im sure the paint method is fine when you arent looking for every last .1hp.
Good Luck
CoryM
__________________
1970 heavy duty C-10 fleetside sport truck. Vancouver B.C. Canada
http://www.geocities.com/chevroletc1070


"Take up our quarrel with the foe:
To you from failing hands we throw
The torch; be yours to hold it high."
Lieutenant Colonel John McCrae, Canadian Army
CoryM is offline   Reply With Quote
Old 08-30-2002, 03:45 AM   #16
BobbyK
Registered User
 
BobbyK's Avatar
 
Join Date: May 2000
Location: Petrolia,Ontario,Canada but working in Port Huron,Mi.
Posts: 1,729
This is where I put my "H" pipe in my 71 blazer.Since it's a 4x4 and has a transfer case this was the forward-most position I could place it.
__________________
71 blazer,350SBC,approx.375HP,700R4,factory GM TPI.Dual electric fans,33x12.5x15 ATR on stock suspension.
Petrolia,Ontario,Canada but working in Port Huron,MI.
See ALL my Blazer pic's HERE
BobbyK is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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 11:02 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com