New Best 1/4 ET
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Thread: New Best 1/4 ET

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    New Best 1/4 ET

    Finally got to the track and make more than 2 passes. Went to a recent track rental at Royal Purple in Baytown with some really good air. Didn't have my tuner present to make any changes, but Im happy with the car and how it performed.
    2 things that need to be addressed is I believe the shift rpm from 1->2 may need to be lowered just a hair, as it bangs and pops on the 1-2 shift. The other is in progress and that is better control of the IAT2 temps, the car currently only has a bigger exchanger and a ZR1 pump...no reservoir and no ice tank. IATs were consistent with about 85-90* at the launch and 160* at the finish line, and with that the car is pulling 3* of timing and losing 2-3mph on the big end.

    Car does have nitrous and I attempted to use it later in the day, but had issues. I got the issue resolved a few days later...all passes except 1 were made on blower only.

    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    Are you spraying N20?
    09' Thunder Gray Chroma Sedan | 6AT | UltraView | Eibach Springs | Velgen VMB5's
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    Quote Originally Posted by VVVROOMTX View Post
    Are you spraying N20?
    I tried to on one pass....was only getting fuel and no nitrous. See the mph loss on the slip.
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    E85?
    The Fastest and Quickest M6 CTS-V
    2004 CTS-V:

    Turbo'd (current): 9.25 @ 154.46 1.49 60' / Best Trap 155.47 / Best 60' 1.43
    325ci, Borg S400, E85, Creative Steel 8.8 IRS Rear End, 6spd T-56.

    Supercharged(old): 9.98 @ 145.86mph. 1.6x 60' Best Trap: 146.99mph
    LS7, 2.9 Whipple 15psi, E85, CS/Ford 8.8 IRS Rear end, 6-spd T-56.

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    Figure out that N20 problem and no more IAT2 problems
    09' Thunder Gray Chroma Sedan | 6AT | UltraView | Eibach Springs | Velgen VMB5's
    "Factory Freak"

    Mod Pile reaching Critical Mass

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    Quote Originally Posted by gtistile View Post
    E85?
    Yes, but I had to much 93 in the tank at the track. I had planned to drive the car earlier that week and run all of the 93 out because I specifically bought a drum of E98 for this track rental....well it rained all week and I only got to drive it one day before the track. The E content was in the high 40s = (
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    Quote Originally Posted by VVVROOMTX View Post
    Figure out that N20 problem and no more IAT2 problems
    Yeah that's why I was like Fk them IATs...lets try to spray it. It nosed over everytime I hit the button.

    Interchiller is gonna be installed before the new year.
    VVVROOMTX likes this.
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    How much are you spraying.

    I leaned to hate nitrous.
    2012 CTS-V Black Diamond Sedan
    Built Block, TFS Heads, MTI Custom Grind Cam, Level 10 Trans
    ECM Tuned By MTI
    TCM Tuned By Steve Williams
    Boost: 818rwhp Nitrous 1107rwhp
    9.64@142.64 Boost Only & 9.36@149.8 nitrous
    2016 Silver Z06
    E85, Meth, MTI Custom Grind Cam, Kooks Long tubes/Catted X pipe
    ECM Tuned by MTI
    TCM Tuned by Steve Williams
    Boost: 702rhwp
    9.97@141.92
    2017 CTS-V Black Sedan
    Whipple ordered. Awaiting arrival...

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    Quote Originally Posted by Duran View Post
    How much are you spraying.

    I leaned to hate nitrous.
    Currently on a 100shot...but once the cooling mod gets taken care of and I get the maximum performance out of her, I may turn it up to a 150/175
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    Quote Originally Posted by TurboCoupe View Post
    I tried to on one pass....was only getting fuel and no nitrous. See the mph loss on the slip.
    What are your blower dyno #s? Nitrous?

  12. #11
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    Quote Originally Posted by BADMOON View Post
    What are your blower dyno #s? Nitrous?
    It was around 740hp with E50 back in October, with a heat soaked blower on a 80* night with 87% humidity. Car made 727hp on 93 back when I had a Ice Box in the car on a cooler night.
    Never dyno'd with using the nitrous. I may take it to a local dyno here and make a few pulls using the nitrous to see where it best likes the timing set at and to also test out the cooler IATs.
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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    Quote Originally Posted by TurboCoupe View Post
    It was around 740hp with E50 back in October, with a heat soaked blower on a 80* night with 87% humidity. Car made 727hp on 93 back when I had a Ice Box in the car on a cooler night.
    Never dyno'd with using the nitrous. I may take it to a local dyno here and make a few pulls using the nitrous to see where it best likes the timing set at and to also test out the cooler IATs.
    Dynos are so deceiving. My car made 670 on one and ran 10.4 at 133mph on meth and 93. Now its on e85 with ported heads.

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    Quote Originally Posted by BADMOON View Post
    Dynos are so deceiving. My car made 670 on one and ran 10.4 at 133mph on meth and 93. Now its on e85 with ported heads.
    Yeah they can be...but Im pretty sure when I get the IATs under control, that the car will perform as it should.
    2012 CTSV Coupe A6
    SW full exhaust, 2.5/9.5, LT1Z 2.5, Greg Good Ported Heads, Ported Blower/Snout, ID1300s, Squash Fuel System, Flex Fuel, AI interchiller, ZL1 lid, Airaid CAI, Ported LS7 TB
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