99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads
12-28-2002, 02:23 PM
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99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads I am very curious to see what is expected out of my A4 3.23 Z28. Anyway, it is in the shop right now getting a Comp 224/.581 on a 114 lobe with Custom Tuning, Mac Mid length Headers w/ ORYP, with a 3000 Vigilante Converter. My following Mods are: 3 inch Super Turbo Dynomax Cat, MTI Power Induction Lid, Homemade Custom Ram Air, TPS Mod, Descreened MAF, NGK TR55's, and a K&N. What should I expect to run when I go to Houston Raceway Park in Baytown. What tires should I use, BFG Drag Radials or E/T Street's??????
12-28-2002, 03:53 PM
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Re: 99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads Go with ET streets for sure. With your current mods (no cam, converter, or headers) you should run around 13.0x@106.x with a modest 2.0 60'.
Post your results. I'm curious to see what you're going to run with your new mods. I really can't give you a good estimate, sorry.
Post your results. I'm curious to see what you're going to run with your new mods. I really can't give you a good estimate, sorry.
12-28-2002, 04:51 PM
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Re: 99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads If you can hook up... First few runs Low 12s easy. After that at least 11.7s with a 1.6x 60'. Quicker with better 60s.
Just a guess.
John
Just a guess.
John
12-28-2002, 05:30 PM
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Re: 99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads i went 11.6s with 224 on a 112 and 563 lift. i had raised the compression though. so 11.7 sounds about right.
12-29-2002, 02:10 PM
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Re: 99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads just depends on your cars weight and traction <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I say anywhere from 12.1-4's without weight reduction and a good 60
11.7-9's with alotta weight reduction
also i think BFG's will hold you fine since you only have 3.23's and 3000stall
ive been 11.7@114.7(bad weather also) with a crappy 1.65 60 on nittos with a 224 .563 114 cam but i have a vig3600 stall. I still have loads more left in the car since i went 11.9@112 with a 1.58 60 on nittos with stock internals/NA <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
I say anywhere from 12.1-4's without weight reduction and a good 60
11.7-9's with alotta weight reduction
also i think BFG's will hold you fine since you only have 3.23's and 3000stall
ive been 11.7@114.7(bad weather also) with a crappy 1.65 60 on nittos with a 224 .563 114 cam but i have a vig3600 stall. I still have loads more left in the car since i went 11.9@112 with a 1.58 60 on nittos with stock internals/NA <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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12-29-2002, 06:35 PM
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Re: 99 Z28 A4 3.23 Comp 224/.581 1/4 numbers on stock heads </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Ole Blue:
<strong> Did you have stock heads? What gears? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">3.23s at the time. the heads were milled, ports were untouches so compression was raised from 10.1 to 11.1. i have a 3200 stall too. so maybe 11.8 to be safe <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
<strong> Did you have stock heads? What gears? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">3.23s at the time. the heads were milled, ports were untouches so compression was raised from 10.1 to 11.1. i have a 3200 stall too. so maybe 11.8 to be safe <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
