!Cat's and picked up 12whp and 10wtq(430.29hp & 388.58tq) - LS1TECH

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!Cat's and picked up 12whp and 10wtq(430.29hp & 388.58tq)

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Old 04-02-2005, 09:24 AM   #1
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Default !Cat's and picked up 12whp and 10wtq(430.29hp & 388.58tq)

Just deleted cats on the car and did a full road tune as well as a dyno tune. The new numbers are 430.29hp & 388.58tq. Kept the air/fuel at 12.7-12.8 the entire run until the very end where I leaned it out to 13.08 by redline. Car is running 26* of timing at WOT.

I took some video of the car on the dyno as well. It's loud without the cat man. To view the video you must "right click save as"

Video of car on dyno

Here is the dyno chart. 350wtq by 3200rpms and 400whp by 5450rpms.
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Old 04-02-2005, 09:38 AM   #2
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Awesome results man. Did you have stock cats when you did that? Or did you go from high flow cats to none?

Either way sexy numbers
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Old 04-02-2005, 11:26 AM   #3
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sounds awesome... what cam?
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Old 04-02-2005, 11:47 AM   #4
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Quote:
Originally Posted by Zymosis
Awesome results man. Did you have stock cats when you did that? Or did you go from high flow cats to none?

Either way sexy numbers
I removed high flow cats and got 7rwhp/12rwtq!!! Cats suuuuuuuuuuck... Good job! Now if we could only get rid of that damn smell!
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Old 04-02-2005, 12:10 PM   #5
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catless=12rwhp=cool as hell! Congrats. Nic vid too, that goat sounds fukin wicked bad...nasty in a good way!!!!!! to ur goat!!
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Old 04-02-2005, 12:58 PM   #6
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One of the first free mods I did was gut my cats....picked up around 12rwhp if I remember correctly. This was on a car with just intake mods.
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Old 04-02-2005, 03:32 PM   #7
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mods? Great results.
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Old 04-02-2005, 08:46 PM   #8
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The car had Random tech high flow cats on it previously. Thanks for the props as well guys. The power mods on the car are as follows:

CNC'd LS6 heads w/63.5cc chambers (10.7:1 comp)
Comp's 234/228 .576/.571 113lsa cam
Stainless Steelworks LT headers
SLP loudmouth exhaust
CS performance maf tube and filter
ASP pulley
MTI TB
Hp tuners
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Old 04-03-2005, 04:14 PM   #9
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Video came out good bro. Good Camera guy
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Old 04-07-2005, 08:24 PM   #10
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if you gut the cats will your tune need to be adjusted?
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Old 04-07-2005, 08:36 PM   #11
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aww...i hate emmissions.. would have saved me some power and money if they were non existant here
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Old 04-08-2005, 03:27 PM   #12
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No cats + Cutout = good gains!!
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Old 04-08-2005, 03:31 PM   #13
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Good #'s
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Old 04-08-2005, 05:02 PM   #14
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Stainless works has another muffler to replace the loudmouth that compliments there LT's well. Just in case you get tired of the droning and loudness. For my system we put bullets where the RT cats were; eliminated rasp. They also make a nice x-pipe system for the GTO....

Great numbers too!
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Old 04-08-2005, 06:37 PM   #15
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Link appears to be broken. All I get is a 6K HTML file.
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Old 04-08-2005, 08:13 PM   #16
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Sorry, I ran out of space, it's uploading now Jim. Check back in 5 min.
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Old 04-08-2005, 08:15 PM   #17
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Ok, here is the new link

Just right click save as to view the vid:

http://www.we-todd-did-racing.com/we...ZmQzMXk1NDE%3D
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Old 04-09-2005, 10:27 AM   #18
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Quote:
Originally Posted by txhorns281
I removed high flow cats and got 7rwhp/12rwtq!!! Cats suuuuuuuuuuck... Good job! Now if we could only get rid of that damn smell!
you mean that smell called pollution? yeah...
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