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08-24-2009
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#1 |
 
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Learned something new about ZR-1 stock mufflers today
Doing some research for a friend today and discovered an interesting piece of Corvette trivia. There is actually a difference between stock 92-95 ZR-1 mufflers and LT-1 mufflers of the same vintage.
Apparently, 90-91 Z's used what GM called a "reverse flow" muffler as did the L98's of the time. 92-96 LT-1's and LT-4's used what GM called a "tri-low" muffler. 92-95 ZR-1's used a "straight through" muffler for increased flow. At least that's what detailed reading of my "Vette Spec's" book says. Trivia lesson over. H 
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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08-25-2009
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#2 |
Join Date: May 2005
Location: Leesburg, VA
Posts: 2,713
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Re: Learned something new about ZR-1 stock mufflers today
I thought LT4's had the least restrictive exhaust setup? Also, does that mean the dual-square tips went away for '92, not '93?
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Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img] |
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08-25-2009
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#3 | |
 
Join Date: Nov 2007
Location: Sunshine State
Posts: 1,071
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Re: Learned something new about ZR-1 stock mufflers today
Quote:
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[B]1990 #2815[/B] [COLOR="Red"][B]Red/Red[/B][/COLOR] Ported Plenum & IH (by Pete) Haibeck Chip Rebuilt FPR (by Phil) FIC Injectors Watson LT Headers 3" Stainless Works exhaust Lingenfelter Open Air Lid Bill B Built Transmission Shifter & C Beam Plates [FONT=Impact][COLOR=red]1992 [COLOR=black]#[/COLOR] 091[/COLOR][/FONT] [FONT=Impact][COLOR=#ff0000]Red/[COLOR=silver]Gray[/COLOR][/COLOR][/FONT] [B]SOLD[/B] |
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08-25-2009
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#4 | |
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Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: Learned something new about ZR-1 stock mufflers today
Quote:
And yes, 92' was the first year of the single rectangular tip in the LT1's. H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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08-25-2009
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#5 |
 
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: Learned something new about ZR-1 stock mufflers today
Learn something new every day.IMO the long rectangular tip's look the best on our cars !
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
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