we all know that the launch is everything in drag racing. Whats one of the main factors in a launch? track condition! this includes altitude, etc. Take a car, run it in 60 degree weather at sea level with tons of grip, and it'll probably run a hell of a lot faster than a car in denver, colorado when its 90 out.
So unless you ran cars at the same time at the same track, you can't truely compare times. Which also means, you shouldn't be so quick to discredit another time. If someone claimed low 13's on street tires, I'd probably claim BS, but 13.6-13.7 seems pretty reasonable to me.
Last edited by spdracerUT : Jun 14th, 2004 at 07:11 PM.
we all know that the launch is everything in drag racing. Whats one of the main factors in a launch? track condition! this includes altitude, etc. Take a car, run it in 60 degree weather at sea level with tons of grip, and it'll probably run a hell of a lot faster than a car in denver, colorado when its 90 out.
So unless you ran cars at the same time at the same track, you can't truely compare times. Which also means, you shouldn't be so quick to discredit another time. If someone claimed low 13's on street tires, I'd probably claim BS, but 13.6-13.7 seems pretty reasonable to me.
Nope, stock z33 can't do that. BTW, I do drag my Z32 at Fontana Ca. and I have never seen ANY stock Z33 do 13.6-13.7.
we all know that the launch is everything in drag racing. Whats one of the main factors in a launch? track condition! this includes altitude, etc. Take a car, run it in 60 degree weather at sea level with tons of grip, and it'll probably run a hell of a lot faster than a car in denver, colorado when its 90 out.
So unless you ran cars at the same time at the same track, you can't truely compare times. Which also means, you shouldn't be so quick to discredit another time. If someone claimed low 13's on street tires, I'd probably claim BS, but 13.6-13.7 seems pretty reasonable to me.
That is exactly what i was about to say. To the guy in Hawaii what was it like.. im imagining fairly hot and humid- Try running it at night or when its cooler (if it ever gets cooler in Hawaii-- never been there) And what where your 0-60ft times? Im sure u can break the 14.3 without modifying the 350Z... i mean w/o spending any money on modifications there are several tricks you could do to loosen up a lil power..
__________________
1993 Nissan NX2000-2002 Lexus IS300 (turbo)-2003 Mitsubishi Evolution 8-1999 Kia Spectra(supercharged)- 1994 Eagle Talon Tsi AWD (23psi)
Take a car, run it in 60 degree weather at sea level with tons of grip, and it'll probably run a hell of a lot faster than a car in denver, colorado when its 90 out.
I hope you realize this does not apply to turbo cars. Temperature maybe , but certainly not altitude. And my car seems to run better when it's 90 out. And let me tell you , Z33s are major dogs up here at 5500 feet. I beat one back when my car was basically still stock. Not by much , but enough. They wouldn't have a chance against me now......
__________________
1992 Yamaha FZR 1000. 145 Hp, all stock..
It's normally about 70 at night here when the track is open and no the weather doesn't change that much here. My 60 ft. time is normally between a 1.982 which was my best 14.3 run to a 2.104 which was my worst 14.3 run. My reaction times are between .450 and a .850 with the occasional 1.2 or so. My times are very much like the other Z's on the track. Not one has run faster than a 14.3 yet.
That is exactly what i was about to say. To the guy in Hawaii what was it like.. im imagining fairly hot and humid- Try running it at night or when its cooler (if it ever gets cooler in Hawaii-- never been there) And what where your 0-60ft times? Im sure u can break the 14.3 without modifying the 350Z... i mean w/o spending any money on modifications there are several tricks you could do to loosen up a lil power..
What tricks are you talking about? I'm sure there's alot of guys here that would like to know. Thanks.
Do any of you guys own or have even driven a 350? They're fast, but not that fast. An STi and Evo stock with beat the 350 if they all have equal drivers. If you've heard of a stock 350 running faster than 14 then that's someone trying to sell you one or trying to brag.
Nope, stock z33 can't do that. BTW, I do drag my Z32 at Fontana Ca. and I have never seen ANY stock Z33 do 13.6-13.7.
heck, neither have I, but I won't say that it can't be done. Most of the mags are getting around 14.0. If the air temp is low enough and the traction is high enough, I think it could be done (probably with a near empty gas tank).
Well, actually, it does; but you can just turn up the boost more to compensate up to the point of detonation at least!
No , the boost stays the same. The spoolup time may be slightly longer , and the turbo definitely must spin faster to pull in the same amount of air it could at sea level , But otherwise boost control settings would be unaffected. Boost is boost and 15 psi is 15 psi , no matter what altitude you are at. This is why turbo cars barely lose or gain any performance when they change altitude in either direction , and all of that loss or gain is in lag. Coming up to a higher altitude will only cause a turbo to run a bit closer to the outside edge of it's efficiency. Only those already running at the limits of turbo efficiency will notice any significant loss of power at this altitude.
__________________
1992 Yamaha FZR 1000. 145 Hp, all stock..
Last edited by B@lliZtiK : Jun 15th, 2004 at 12:52 AM.
An automatic will be around a 14.3 I am not lieing I have seen it and I have seen you on my350z so I know that you have seen some of the times. Stock tires best have seen with a stock car was a 13.5. Another had an Injen CAIwhich robs 2 horsepower from the car. I'll find the slips if you don't believe me but don't call me a liar because I have done quite a bit of research on the 350Z. 14s for an auto are expected but you can get the car 13.8 with a good driver (what it should be stock) and even lower with some amazing drivers.
The Injen CAI robs horsepower???? Why would anyone put it on the car if it doesn't make gains? I have an auto, and the AEM CAI I installed seemed to make a difference. What would make the cold air intake take away power? Sorry for the noob question.
Just wanted to add I have an SE-R, not a Z. Just interested in knowing if the CAI robs horsepower in general or if its just not a good mod to do to a Z.
Last edited by GarrettSER : Jun 15th, 2004 at 11:29 AM.
heck, neither have I, but I won't say that it can't be done. Most of the mags are getting around 14.0. If the air temp is low enough and the traction is high enough, I think it could be done (probably with a near empty gas tank).
No , the boost stays the same. The spoolup time may be slightly longer , and the turbo definitely must spin faster to pull in the same amount of air it could at sea level , But otherwise boost control settings would be unaffected. Boost is boost and 15 psi is 15 psi , no matter what altitude you are at. This is why turbo cars barely lose or gain any performance when they change altitude in either direction , and all of that loss or gain is in lag. Coming up to a higher altitude will only cause a turbo to run a bit closer to the outside edge of it's efficiency. Only those already running at the limits of turbo efficiency will notice any significant loss of power at this altitude.
I guess I'll agree with most of that. 15 psi gauge is 15 psi gauge regardless of altitude, but it's not the same in absolute pressure at different altitudes. I crunched some made up numbers.... say at sea level, ambient pressure is 15 psi (1 atm = 14.7psi). So 15psi ambient plus 15 psi gauge = 30 psi absolute. At altitude, say the ambient pressure is 13.5 psi, plus 15 boost = 28.5 psi absolute. So the absolute pressure is lower at altitude.
But the pressure ratio changes too. So at sea level, it'd be (15+15)/15 = 2. At altitude, (13.5+15)/13.5 = 2.11 (I think I calculated PR correctly... off the top of the head). So the turbo is operating at a higher pressure ratio at altitude so I guess that makes up for some of the difference in mass flow rate due to the lower absolute pressure. But operating at the higher pressure ratio also heats up the air more, so you'll lose some efficiency/power there.
So my guess is, if the turbo is operating well within its max efficiency island on the compressor map at sea level, then there won't be a lot of difference at altitude, but I think the mass flow rate at altitude will still be a tad lower than see level due to the higher pressure ratio. If you're already at the edge of the good efficiency islands, you'll probably lose a fair amount of power like you said.
So...uh... anyone want to drive from LA to Denver and test it out?
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
And let me tell you , Z33s are major dogs up here at 5500 feet. I beat one back when my car was basically still stock. Not by much , but enough. They wouldn't have a chance against me now...... 
Linear Mode
