Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
03-27-2020, 09:41 AM | #1 |
Registered User
Join Date: Mar 2008
Location: Tullahoma, TN
Posts: 406
|
Exhaust pipes over crossmember?
You guys that run your pipes over the top of the first cross member, do you notice any additional heat thru the floorboard. Like sitting in traffic on a hot summer day baking like a biscuit or anything? I hate heat, scared to death of it, anything over 70, I start looking for an A/C LOL!
|
03-27-2020, 03:25 PM | #2 |
Registered User
Join Date: Jun 2017
Location: Norfolk, VA
Posts: 15
|
Re: Exhaust pipes over crossmember?
I just installed sound detinning and heat barrier from dynamat.
|
03-27-2020, 08:43 PM | #3 | |
Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,318
|
Re: Exhaust pipes over crossmember?
Quote:
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
|
03-27-2020, 10:04 PM | #4 |
Registered User
Join Date: Jul 2019
Location: Beebe, AR
Posts: 2,472
|
Re: Exhaust pipes over crossmember?
Gotta be the cross member the drive shaft passes through and the trailing arms connect to. I've seen many cut holes in them and pass through those. Considering that for mine in the future.
grndcont - what steering wheel is that? you can PM me as I don't want to hijack this thread.
__________________
1967 C10 1980 Jeep CJ5 2020 Toyota 4Runner 2024 Toyota Tundra |
03-28-2020, 01:52 AM | #5 |
Post Whore
Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,218
|
Re: Exhaust pipes over crossmember?
I'm guessing it is the transmission crossmember he is referring to. It would be hard to quantify it as someone would have had to run their exhaust both under and above the crossmember to be able to answer the question accurately.
What I can speak to is on my Burban the mufflers were between the transmission crossmember and the trailing arm crossmember. (Basically under the front seat.) They were installed at an angle to clear the drive shaft and the result was the foam insulation under the carpet melted. (It wasn't hot enough to discolor the paint)This only occurred where the mufflers were one inch or less from the floorboard. No problems with the new exhaust system. (I had the carpeting up to install new rear seats last fall. About 15k miles at that point.) Not the best picture but it may show enough. I haven't noticed any unusual heat as a result of how they are installed. In the interest of full disclosure, I did spend my early years growing up in the desert south of Reno in the time before air conditioning. Scroll to post 114 on the link below to see the melted areas. https://67-72chevytrucks.com/vboard/...=698377&page=5
__________________
Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
03-28-2020, 09:36 AM | #6 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,722
|
Re: Exhaust pipes over crossmember?
I'm sure he is talking the transmission crossmember. And that is how it is routed on the 4x4 trucks stock since their crossmember hangs lower. I plan on routing it that way on my short step but I still need to swap the motor first!
I already cut openings in the trailing arm crossmember and welded in 4" pipe reinforcements to run exhaust through that. But on my leaf spring truck, LOTS more clearance for exhaust.
__________________
44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|