Heat Riser ?
Thread Starter
Pro
Joined: Jan 2008
Posts: 616
Likes: 1
From: Huntersville NC
Heat Riser ?
I'm going to get my manifolds back on this weekend after painting. I have a heat riser on my passenger side exhaust but not on the driver side. Does that make any sense. Should you have one on each side, or non, what does it really do?
Drifting
Joined: Jun 2007
Posts: 1,640
Likes: 0
From: DeBary Fl. Amateur Radio Operator K3CQR
Only 1 heat riser valve, on the passanger side only. What does it do? It prevents exhaust from exiting the passanger side when engine is cold. Exhaust heat is trasnfered through planiums to drivers side. Helps the engine warm up faster. When hot, valve opens and you've got real duel exhausts. Bill.
Le Mans Master
Joined: Jan 2002
Posts: 8,913
Likes: 283
Spell Check (Copy to a Word Doc, spell check, copy back)
If you are wanting the heat riser for a correct looking application, you can gut the valve and leave it stock appearing, but rendering it useless. Unless you plan on driving your vette in below freezing weather, then you do not need it.
In any event, make sure it is open and or working, if not you will have a hot intake, and poor running carb with boiling/percolating problems, warp an aluminum intake, and warp a Holley carb.
Mark
If you are wanting the heat riser for a correct looking application, you can gut the valve and leave it stock appearing, but rendering it useless. Unless you plan on driving your vette in below freezing weather, then you do not need it.
In any event, make sure it is open and or working, if not you will have a hot intake, and poor running carb with boiling/percolating problems, warp an aluminum intake, and warp a Holley carb.
Mark
Le Mans Master
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
Tech Contributor
Joined: May 2005
Posts: 15,576
Likes: 118
From: Conroe Texas
Last edited by 62Jeff; Jun 6, 2008 at 09:17 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Melting Slicks
Joined: Jan 2003
Posts: 2,817
Likes: 21
From: Somerset, NJ
I'm going to get my manifolds back on this weekend after painting. I have a heat riser on my passenger side exhaust but not on the driver side. Does that make any sense. Should you have one on each side, or non, what does it really do?Attachment 47624669
