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why is Z less quick than NSX, M3 and even 911s

 
Old May 23, 2003 | 03:45 PM
  #61  
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What is so magical about 60mph?
I think there's nothing magical about 60mph but its kind of an stablished bemchmark for testing a car's acceleration.

The most gear available isn't always the best...
I realy don't know a lot about racing and stuff, only what I read in magazines, and I read about 5 diff a month. After sayin this...
Why do you think a Diablo or Murcielago (obviating the fact that they have 500hp+) do 3.3s to 60mhp? No need to change form first to second. One more point to make my case, I recently read a comparo between Mitsu's new Lancer Evolution (aka EVO VIII) and Subaru's WRX STI) Although in paper the WRX would seem to have beat the EVO becouse of a power and tq advantage (29hp and 27lb-ft more fore the WRX), The WRX also has a 6speed manual while the EVO has a 5 speed... Well this seems to have been the mistake for the WRX. You see having 6 speeds means closer gearing, hence, you need to shift from 1st through 3rd in the WRX to hit 60mph, the mistu needing only one upshift beats the more powerful WRX. The mag states that a perfect upshift performed by an expert will take about .5s so I guess this will realy afect a cars 0-60 time.

Ricardo
Old May 23, 2003 | 05:06 PM
  #62  
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Ricardo,


I like your logic and I agree with you, but the STI obliterated the Evo in a straight line. Both SCC and Car and Driver got the STI to 60 in under 5 seconds. And in both articles the STI bested the Evo by .4 seconds.
Old May 24, 2003 | 04:49 PM
  #63  
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Someone has tried a new final gear:

https://my350z.com/forum/showthread....threadid=30172

Read the second post....

Ben
Old May 29, 2003 | 11:48 AM
  #64  
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Vehicle Performance Calculator

Pick 350Z from the drop down and you have the top speeds in each gear based on wheel size and gear ratio. You also get an estimated 1/4-mile speed and time.
Old May 29, 2003 | 12:06 PM
  #65  
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Things I learned from that link:

A 14,000 inch rim will only rotate 1 time in 1 mile

Gear ratios do NOT effect 1/4 times

If I can get my Z down to 2100lbs I can break into the the 11's stock
Old May 30, 2003 | 06:25 AM
  #66  
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Originally posted by ForcedInduction
Lee3Z, i'm pretty sure that the stock 93+ rx7s have the same acceleration as the z33. Maybe you feel that you are "accelerating faster" because you are driving a lighter car. Some cars, you feel like you are accelerating faster but it just feels that way. Or your rx7 may seem faster because you have already modded it, CONFUSING LEE3Z. I'm surprised that we can't run with old gen. nsxs. we have more tq, and only about 70 lb difference. we have almost 50 more lbs/ft tq. that should make up for the weight difference? I really hope that Nissan didn't overrate our car's bhp.
Actually you are wrong, 3rd gen Rx-7's out accelerate 350Z's in both 0-60 and 1/4 mile.

Z's are a cool car, but very heavy.
Old May 30, 2003 | 07:01 AM
  #67  
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Originally posted by zerobanger
Actually you are wrong, 3rd gen Rx-7's out accelerate 350Z's in both 0-60 and 1/4 mile.

Z's are a cool car, but very heavy.
oh boy, here we go again.

Lets keep the RX7 info on the other thread that is totally dedicated to that car VS the Z, I am talking about cars listed in my topic. Thanx.
Old May 30, 2003 | 07:23 AM
  #68  
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Originally posted by ranger5oh
Guys... there are many things that make a car fast. One thing many of you are right on is the Torque factor. HP is actually a function of Torque. HP = Torque*RPM/5250. So yes... what we want is a car with torque that lasts all the way through our useful rpm range. When you look at the NSX their engine revs 2000 more rpm than ours and they are probably geared much better. I dont know about all of you, but I am pissed my Z needs to shift at EXACTLY 60mph before the rev limiter cuts in. I think it should run to at least 65. Pisses me off, but I still love my baby Z. Also you guys broughup the point of weight distribution. Yes, the NSX and Porsches have similar weight distributions however, wheel diameter, width and weight are huge factors in acceleration. I would have to say though. the Z probably keeps up pretty well with these other cars. In order to run these 4.5 sec 0-60 times, those drivers are doing 6000rpm clutch drops. OUCH!
u ever done a clutch drop about 3k in a car? all its gonna do it SPIN. I seriously doubt the drivers are doing that.
Old May 30, 2003 | 10:11 AM
  #69  
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Originally posted by ranger5oh
Guys... there are many things that make a car fast. One thing many of you are right on is the Torque factor. HP is actually a function of Torque. HP = Torque*RPM/5250. So yes... what we want is a car with torque that lasts all the way through our useful rpm range. When you look at the NSX their engine revs 2000 more rpm than ours and they are probably geared much better.
I'm not sure how the NSX's are geared, but I can tell you this: My '02 996 redlines at 7300 RPM (As do all watercooled 996's). When I put my car on the dyno, it made peak HP at redline, so you can use all of the gear. First gear gets me about 45MPH, 2nd gear is just at 75MPH (my spoiler pops up), and 3rd gear is right around 105 MPH, so it's geared pretty tall for the first 3 gears. After that, 4th gear is only good for 125MPH, 5th is around 150MPH, and 6th gets 180MPH+. The scary thing is, the faster you're going, the harder the car pulls, and the angrier it sounds.

Originally posted by ranger5oh

Yes, the NSX and Porsches have similar weight distributions however, wheel diameter, width and weight are huge factors in acceleration. I would have to say though. the Z probably keeps up pretty well with these other cars. In order to run these 4.5 sec 0-60 times, those drivers are doing 6000rpm clutch drops. OUCH!
The NSX is mid-engined, and a little better balanced than my car. I've seen 57-58% rear weight bias on that car. On the Porsche, the engine sits entirely behind the rear axle. You can actually bend down and see the entire engine and headers hanging out back there. That's what gives the Porsche a 61% rear balance. It also gives tremendous traction off the line.

I raced a guy in a 350z last week from a stoplight. He revved before the light changed green and popped the clutch, getting the jump on me. I eased off the line and nailed it. I was even with him before the end of 1st gear, and had a good couple of car lengths by the top of 2nd gear. We stopped at the next light and chatted for a few moments until the light changed. It was black, and he said it was an Enthusiast model that he'd had for several months. He was a real nice guy, and we waved, honked, and he merged onto the interstate.

There's really not a whole lot of reason to pop the clutch on a 996, unless you're really trying to get a moonshot out of the hole. I've actually never done it, but I spin the wheels almost the whole way through first gear.

On another note, I've never run into an NSX that can come close to running that 4.5 0-60 and sub 13.0 sec 1/4 mile that has been published. I've raced several, both from a stop and on the interstate, and was able to pull on every one. I've also been beaten about the head by a Z06 or two, but we won't talk about that........
Old May 30, 2003 | 11:30 AM
  #70  
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Originally posted by My996C2
I'm not sure how the NSX's are geared, but I can tell you this: My '02 996 redlines at 7300 RPM (As do all watercooled 996's). When I put my car on the dyno, it made peak HP at redline, so you can use all of the gear. First gear gets me about 45MPH, 2nd gear is just at 75MPH (my spoiler pops up), and 3rd gear is right around 105 MPH, so it's geared pretty tall for the first 3 gears. After that, 4th gear is only good for 125MPH, 5th is around 150MPH, and 6th gets 180MPH+. The scary thing is, the faster you're going, the harder the car pulls, and the angrier it sounds.



The NSX is mid-engined, and a little better balanced than my car. I've seen 57-58% rear weight bias on that car. On the Porsche, the engine sits entirely behind the rear axle. You can actually bend down and see the entire engine and headers hanging out back there. That's what gives the Porsche a 61% rear balance. It also gives tremendous traction off the line.

I raced a guy in a 350z last week from a stoplight. He revved before the light changed green and popped the clutch, getting the jump on me. I eased off the line and nailed it. I was even with him before the end of 1st gear, and had a good couple of car lengths by the top of 2nd gear. We stopped at the next light and chatted for a few moments until the light changed. It was black, and he said it was an Enthusiast model that he'd had for several months. He was a real nice guy, and we waved, honked, and he merged onto the interstate.

There's really not a whole lot of reason to pop the clutch on a 996, unless you're really trying to get a moonshot out of the hole. I've actually never done it, but I spin the wheels almost the whole way through first gear.

On another note, I've never run into an NSX that can come close to running that 4.5 0-60 and sub 13.0 sec 1/4 mile that has been published. I've raced several, both from a stop and on the interstate, and was able to pull on every one. I've also been beaten about the head by a Z06 or two, but we won't talk about that........
nice to see friendly races between the Z and teh 911 (since that is my other favorite car)
Old May 30, 2003 | 11:41 AM
  #71  
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i havent read all four pages, so i dont know if anyone tried mentioning this but... dont u think the engineering of that ___ torque and that ___ hp is what also helps if not the deciding factor...(gearing is also a verryyyyy easy explanation...)

im sure the m3's engine is higher quality than our z.... etc..like the design of such a engine.... so i think it COULD add to it.

and also revving too..as u all said. ( i am a new member and i must say u are avery well infomed group of guys.).....but yea..revving, i fu have 260 hp...at 7000 rpm..an di have 260 hp at 7000 rpm..but urs cuts off at 7800 and mines at 8300, u have to shift first...and then..u drop rpms during the shift...while u are shifting AND dropping i am still gaining in my power band. when i shift..the defecit has widened. i take this example from the toyota celica. a stock gts with the 8300 rpm redline can pull a 14.9...14.8.... but the 2002 had a 7800 rpm cut off...which hurts..cuz max hp hit at 7300. the point where u landed ur tach after u shifted is obviously at a lower rpm than a higher redline would have too..

so i feel..engineering, revs, gearing and whe and how ur hp is distributed accorss ur power band is what in total thought creates the difference in on care being faster..when another..has more #'s to brag about.

thats just my .02 cents of course.
 
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