301 WHP 07 HR - Z Car Garage - Uprev
09-01-2012, 04:12 PM
#23
congrats on the numbers! i had stillen intakes, headers and HFCs with the nismo cat back and i pushed 294.5 whp... but i felt quite a bit of restriction - swapped to stillen true dual cat back and gonna go in for a retune in a few weeks. i too hope to break that 300 mark.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
09-03-2012, 01:44 PM
#24
Registered User
congrats on the numbers! i had stillen intakes, headers and HFCs with the nismo cat back and i pushed 294.5 whp... but i felt quite a bit of restriction - swapped to stillen true dual cat back and gonna go in for a retune in a few weeks. i too hope to break that 300 mark.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
14.4 Is horribly slow, I would work on driver mod..
LOL @ launching 1800 RPM.... If your close to 300whp you should be deeeeep into the low 13's...
Why the hell are you running 40psi?? You should be launching at MUCH higher RPM, slipping the clutch and running 20-25psi for traction.... The launch is the single most determining factor in your ET
09-03-2012, 03:18 PM
#25
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as far as lower HP reading with in a hotter day goes with different mods, I've heard a car loses approx. 1% power per every 10 degrees of heat. So 15 degrees hotter would be about 4-5 hp loss according to this formula.
Launching: I'm not running 13.1 quater miles but I find that launching at 3k and controlling the spin give me a better 1/4 mile time at 13.3-13.4 where as launching at 2.5k bogs the car and I end up running a 13.7+
I probably have killed my bottom end power though with hfc, catback, intakes, and light weight flywheel
btw, my tire pressures at 33-35 on 245
Launching: I'm not running 13.1 quater miles but I find that launching at 3k and controlling the spin give me a better 1/4 mile time at 13.3-13.4 where as launching at 2.5k bogs the car and I end up running a 13.7+
I probably have killed my bottom end power though with hfc, catback, intakes, and light weight flywheel
btw, my tire pressures at 33-35 on 245
Last edited by rtiid22; 09-03-2012 at 03:19 PM.
09-03-2012, 10:16 PM
#27
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sweet my G is at ZCG as we speack getting a smaller pulley a tune and a few other goodies done. Its been there for a couple weeks but i hope its worth the wait 
09-04-2012, 02:48 PM
#28
14.4 Is horribly slow, I would work on driver mod..
LOL @ launching 1800 RPM.... If your close to 300whp you should be deeeeep into the low 13's...
Why the hell are you running 40psi?? You should be launching at MUCH higher RPM, slipping the clutch and running 20-25psi for traction.... The launch is the single most determining factor in your ET
LOL @ launching 1800 RPM.... If your close to 300whp you should be deeeeep into the low 13's...
Why the hell are you running 40psi?? You should be launching at MUCH higher RPM, slipping the clutch and running 20-25psi for traction.... The launch is the single most determining factor in your ET
and my tires hankook evo 12s lost more and more grip as the tires got more hot. so when i launched above 2500 rpms i would just spin for a solid second (hence the 14.4s) once i started easing into the start (less spin) is when i broke into the high 13s i definitely aim to be in the low 13s... second time out on the track for me so i know driver mod is best mod at this point. last year i only ran her twice til my concentric slave cylinder (recall) went out.
09-04-2012, 02:54 PM
#29
congrats on the numbers! i had stillen intakes, headers and HFCs with the nismo cat back and i pushed 294.5 whp... but i felt quite a bit of restriction - swapped to stillen true dual cat back and gonna go in for a retune in a few weeks. i too hope to break that 300 mark.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
ran a 13.98 on the track runnin on hankooks @ 40psi (tire pressure) and 285s in the rear. definitely spins quite a bit. best way to launch with the HR (imo) is below 2500 rpms. i launched at 1800 and got the 13.98 otherwise i would average 14.4s but spun a lot at the line.
09-04-2012, 03:31 PM
#30
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i have an 08 with nismo intakes, nismo catback and berks high flow cats. I ran the car for the first time best times was a 13.888 @101.61. i have not had it tuned yet. i know in my rx7 i ran low 13.s at this mile per hour. my question is what rpm are you guys shifting at i was shiftin right at 8k. also my 60' were mainly 2.2 slipping the clutch
09-04-2012, 04:56 PM
#31
i have an 08 with nismo intakes, nismo catback and berks high flow cats. I ran the car for the first time best times was a 13.888 @101.61. i have not had it tuned yet. i know in my rx7 i ran low 13.s at this mile per hour. my question is what rpm are you guys shifting at i was shiftin right at 8k. also my 60' were mainly 2.2 slipping the clutch
Odds are you aren't making power that high. I really only rev out 1st to avoid a power drop in 2nd, usually shifting around 7400 is best for area under the curve.
I was able to manage a 2.05 60' on some worn out hankook V12 285/30/19 tires, ran a 13.4@104 basically stock. It's all in the launch.
09-04-2012, 06:46 PM
#32
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the car will miss every once in a while.i would pull 1.7 60 ft in my rx7 with drag radials so i am on the hunt for some
drag radials right now. best 60 ft i pulled so far is 2.2. ran it 4 times. going again this friday. i will try shifting it sooner and see what happens
drag radials right now. best 60 ft i pulled so far is 2.2. ran it 4 times. going again this friday. i will try shifting it sooner and see what happens
09-05-2012, 09:47 AM
#35
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09-05-2012, 12:36 PM
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09-25-2012, 01:12 PM
#39
. This means NO SNIFFER..and since I have defouler set up, there is no CEL either. So when I test in 2015, I fully expect to pass. There is a visual as well, but they wouldn't know an HFC from a real cat if it bit em in the A$$.
08-20-2013, 06:40 PM
#40
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my z is stock i do 13.8 at 1/4 mile i want to put the cold air intakes headers and a bottle does any of you know whats going to be my time ? ill be happy if i brake 12s lol