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October 31st, 2009, 12:50 AM
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#1
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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New best
Here is my new best...This is with a street radial with stock 273 gears my mods excepted SLP Y/SLP Loudmouth 1.
RT-.511
60ft-1.990
330ft-5.770
1/8'-8.70
MPH-83.84
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2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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November 9th, 2009, 09:22 PM
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#2
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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How much do you think the Y-Catback take off. and Iam doing 373 gears,Hypertech 160 this winter. Iam gonna get it tuned also.
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2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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November 10th, 2009, 01:43 AM
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#3
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Administraterer ™
Join Date: Oct 2009
Location: Los Altos, CA
Posts: 575
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cats are only holding you back 2-5whp at MAX... you may see minimal if an gain. those 3:73's will help you big time along with that tune help cut at least maybe a tenth depending on the tune setup
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- 2002 Z/28 M6  All Stock
My Garage
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November 10th, 2009, 08:35 AM
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#4
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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Quote:
Originally Posted by RrCoX22
cats are only holding you back 2-5whp at MAX... you may see minimal if an gain. those 3:73's will help you big time along with that tune help cut at least maybe a tenth depending on the tune setup
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How much do you think the stock exhaust is hoding the car back I did a catback exhaust.I will be running sticky tires next I go to the track also. I see where people has gain .27-.34 going from 273s to 373s gear change. If my car picks up .37-.44 I should run 8.26-8.33 in the 1/8.
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2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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November 12th, 2009, 11:00 PM
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#5
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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Iam hoping to drop some more in time for next year. With an install of my Y-Catback,373s,160,Tune,M/T Darg Radials. Iam hoping to knock off .4-.5. I think I would have seen a better time with just drag radials for I could stall it up with out spining.How much should I pick up with theses mods.
Y-Catback------
373s------------
Tune/160--------
M/T Drag Radials-
__________________
2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
Last edited by 1BadF-body; November 12th, 2009 at 11:33 PM.
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December 15th, 2009, 11:20 PM
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#6
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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My one cat was bad/clogged and I think it runs better and I think its faster. It could be me.But my dad thinks the same thing. Noone thinks what my car will pick up.. Remember I have the 273 gears.. If I can find a good deal on LTs and ORY,Stall I will add them this winter also.
This is what I think..
Y-Catback----.10-.15
373s-------.10-.15 in the 1/8
Tune/160--.10-.12
M/T Drag Radials---.10-.12....
__________________
2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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December 19th, 2009, 12:13 PM
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#7
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Registered User
Join Date: Nov 2009
Location: Wisconsin
Posts: 21
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Quote:
Originally Posted by 1BadF-body
My one cat was bad/clogged and I think it runs better and I think its faster. It could be me.But my dad thinks the same thing. Noone thinks what my car will pick up.. Remember I have the 273 gears.. If I can find a good deal on LTs and ORY,Stall I will add them this winter also.
This is what I think..
Y-Catback----.10-.15
373s-------.10-.15 in the 1/8
Tune/160--.10-.12
M/T Drag Radials---.10-.12....
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I dropped .2-.3 just going from street tires to drag radials, and dropped my 60foot from 2.0-2.2 down to 1.8. Tires will make an incredible difference
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December 27th, 2009, 12:31 PM
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#8
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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cool cool thanks becuz I couldnt stall it up none with theses street tires and if I did I spun like crazy.My best 60ft has been a 1.99. My goal is 8.1s-8.30s
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2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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February 16th, 2010, 09:55 PM
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#9
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Registered User
Join Date: Oct 2009
Location: Fredericksburg,Va
Posts: 20
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I P&P my throttle body and I did the free ram air also...
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2002 Z28 A4. SLP Lid,K&N,Smooth Bellows,Delphi 85mm MAF,Throttle Body Bypass,SLP Y,SLP Loudmouth 1,UMI Strut Tower Brace,UMI Weld In Subframe Connectors.
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March 10th, 2010, 04:02 AM
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#10
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Registered User
Join Date: Mar 2010
Location: Valrico, FL
Posts: 2
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The most important mod you should do to that car is put a torque converter in it. Trust me on this one.
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March 10th, 2010, 02:05 PM
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#11
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Moderator
Join Date: Oct 2009
Location: Bay Area, CA
Posts: 241
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Quote:
Originally Posted by 01_Ram-Air
The most important mod you should do to that car is put a torque converter in it. Trust me on this one.
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+1 
__________________
2003 Z06 - Procharged and LTs
1967 Camaro - LS1 T56 project
2000 Camaro SS m6 - 523rwhp 468rwtq - Sold
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