Best Trap Speed w/Stock Ex Manifolds
08-23-2004, 01:01 PM
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Best Trap Speed w/Stock Ex Manifolds I'm trying to figure out the limits of the stock exhaust manifold & cats. Can you please post your best trap speed when you used the stock manifolds & cats? I'm especially interested in the '00-'02 manifolds and A4 trap speeds. But earlier manifolds & M6 speeds would also be useful. So, please post. Thanks!
08-23-2004, 01:45 PM
#3
My 01 Z (m6) with a TSP lid, SLP y-pipe, loudmouth, and a predator went 111.6 with stock manifolds/cats.
My 00 SS (m6, no LS6 intake like my 01) has only gone a best of 108.6 with TSP lid and GMMG catback.
My 00 SS (m6, no LS6 intake like my 01) has only gone a best of 108.6 with TSP lid and GMMG catback.
Last edited by DMNSPD; 08-23-2004 at 03:24 PM.
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08-23-2004, 05:24 PM
#8
I went 122 mph with stock '00 manifolds, cats and cutout. My car was an A4. Running a .073 nitrous jet helped it some too.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
08-23-2004, 06:19 PM
#10
Originally Posted by Jorday
My 00 T/A M6 went 110 with a stock motor and the stock manifolds, y pipe and cats still in place.
I'll add that besides the lid, ypipe, loudmouth, and predator, I also had almost 90K miles
So I say we go with this question:
Who has the highest trap with FACTORY Engine (intake, heads, cam, block) and no mods from the cats to the manifolds - WITH NO POWER ADDER!
So mods allowed:
Lid/Filter/FRA or SSRA or the like
y pipe and catback
throttle body
pulley
tune or programmer
gears and suspension (probably won't help out mph though)
08-23-2004, 06:28 PM
#11
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109.00 MPH with just a Stealth airlid, Thunder Racing MAF ends, Hooker catback and Pro 5.0 shifter. Completely stock tuning and EVERYTHING else. Car is a 98 M6 and had ~25k miles at the time with a fresh set of plugs and wires. FULL weight w/ 275 lbs driver and even the jack and spare in the trunk.
P.S.-Oh, I did cut off the EGR thing that sticks down by the throttle body too.
P.S.-Oh, I did cut off the EGR thing that sticks down by the throttle body too.
Last edited by BuckeyeROC; 08-23-2004 at 06:39 PM.
08-23-2004, 06:50 PM
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Originally Posted by DMNSPD
You and I must be the only ones with good MPH without the "gutted cats" or "cutout" or "crate engine"
I'll add that besides the lid, ypipe, loudmouth, and predator, I also had almost 90K miles
So I say we go with this question:
Who has the highest trap with FACTORY Engine (intake, heads, cam, block) and no mods from the cats to the manifolds - WITH NO POWER ADDER!
So mods allowed:
Lid/Filter/FRA or SSRA or the like
y pipe and catback
throttle body
pulley
tune or programmer
gears and suspension (probably won't help out mph though)
I'll add that besides the lid, ypipe, loudmouth, and predator, I also had almost 90K miles
So I say we go with this question:
Who has the highest trap with FACTORY Engine (intake, heads, cam, block) and no mods from the cats to the manifolds - WITH NO POWER ADDER!
So mods allowed:
Lid/Filter/FRA or SSRA or the like
y pipe and catback
throttle body
pulley
tune or programmer
gears and suspension (probably won't help out mph though)
I believe he wanted to know the LIMITs of the stock exhaust set-up.You certainly aren't reaching them with the mods you've listed.
There was no exclusion of power adders or cams/heads as far as I could tell.
You listed a pulley as an acceptable mod? This has zero to do with the exhaust flow and is doing nothing to answer this guys question.You're killing me here...
If you want to make yourself feel good about trapping 111 w/your listed mods you should probably make your own thread instead of hi-jacking this guys..
08-23-2004, 09:11 PM
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Thank you for all of your replies so far! So I'm getting the feel that 108-111 is the general average range for the stock manifolds & cats. I'd like to get enough info to be able to see a distinction between A4s & M6s. So please continue posting! Thanks
08-23-2004, 10:29 PM
#15
Originally Posted by Cheatin' Chad
If you want to make yourself feel good about trapping 111 w/your listed mods you should probably make your own thread instead of hi-jacking this guys..
What's wrong with the mods I listed? What does the pulley have to do with exhaust? Nothing. Did I say it did? Nope. The question was "What's the highest mph through stock manifolds?" Last time I checked you didn't have to mess with the manifolds to throw a pulley on - but since you pointed out it has nothing to do with the exhaust, this is a no brainer.
So if a pulley isn't, then how is your nitrous? Are you going to tout that as "well, more air goes in, so more exhaust needs to go out"? Well, if a pulley is there to let the engine spin "free-er", then wouldn't it be bringing more air in and needing to expell more exhaust as well?
Maybe i'm just totally going off course - or maybe I just want to know who has a higher trap than my old Z - with the limited mods
Now YOU'RE killing me here
08-23-2004, 11:44 PM
#16
Originally Posted by DMNSPD
So I say we go with this question:
Who has the highest trap with FACTORY Engine (intake, heads, cam, block) and no mods from the cats to the manifolds - WITH NO POWER ADDER!
Who has the highest trap with FACTORY Engine (intake, heads, cam, block) and no mods from the cats to the manifolds - WITH NO POWER ADDER!
08-24-2004, 08:40 AM
#18
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In a 02 stripper 6-speed Z I went 13.261 at 109.23 with a 2.28 60'. I n the same car I went 8.411 at 87.98 with a 2.04 60'. Mods were FRA and K&N and hurst billet. Another question you might ask is if anyone has done any flow bench comparisons to the Fbody and Corvette ZO6 manifolds, that might be informative.
08-24-2004, 09:47 AM
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In the hot summer night of humid july in memphis, I ran a 12.48 @ 114mph. M6, 99, free mods, SLP lid, Cutout (after the cats) and a 125 shot. I think it had 117mph in it in cool weather. Temps were 85* and 95% humidity at 12:30am.
Plus my car weighs a lot.
Plus my car weighs a lot.