Are Z's top speed limited by weight?
01-13-2009, 01:42 PM
#26
Haterade by da gallon!
Join Date: Jun 2008
Location: Valdosta GA
Posts: 2,306
Originally Posted by SHADY280
i know my wing and airdam helped tons on my car. you can actually feel it sink to the ground as speed increases. ive had my stock z to 180kph, but never went faster due to traffic, now that its modded, ive had it a little past 220kph. my brother had a very worn out lowered s130, he took it to 185kph, but man that thing felt scary at 100kph!!
Originally Posted by SHADY280
i know my wing and airdam helped tons on my car. you can actually feel it sink to the ground as speed increases. ive had my stock z to 112mph, but never went faster due to traffic, now that its modded, ive had it a little past 137mph. my brother had a very worn out lowered s130, he took it to 115mph, but man that thing felt scary at 62mph!!
01-13-2009, 02:45 PM
#27
Big Poppa
Join Date: Jan 2005
Location: Mission, British Columbia
Posts: 4,499
hehehe thanks for converting the speed over!! ahahah. yeah every bushing was shot, the ball joints and tie rod ends were badly worn, plus it was lowered and only the inner edge of a 195/60/r14 was touching. due to that it also could lay rubber thru 4th gear with only a p79 head shave and headers done to it. i ended buying the car and taking it all apart then throwing out the rusted hulk of a body.
01-13-2009, 06:22 PM
#29
Haterade by da gallon!
Join Date: Jun 2008
Location: Valdosta GA
Posts: 2,306
Originally Posted by KingDatsun1
yes, I was wondering what the best gearing would be if you wanted a high top speed Z. My Z is running 55mph at like 3k rpm in 5th. lol I think thats really high
01-13-2009, 11:28 PM
#32
Externally Wastegated
Join Date: Oct 2001
Location: San Diego
Posts: 1,220
The tallest ratio would be to get a 3.36 rear end with a late zx 5 speed. That will give you the theoretically highest potential top speed, although you'll need a bunch of power to get there.
If you want to mess around and see what different things will do for your top speed, (aerodynamics not calculated) go here:
http://www.geocities.com/z_design_studio/
It's also a good way to see how far off your speedometer is too.
If you want to mess around and see what different things will do for your top speed, (aerodynamics not calculated) go here:
http://www.geocities.com/z_design_studio/
It's also a good way to see how far off your speedometer is too.
01-14-2009, 07:17 AM
#34
Big Poppa
Join Date: Jan 2005
Location: Mission, British Columbia
Posts: 4,499
apparently if im booking it along the freeway at 200+ kph, even the police helicopters cant keep up. my buddy is a pilot, he was amazed i could go that fast, but saying that, hes never topped 110kph in a car. yeah ive tested my car against the radar signs, seems to be bang on accurate.
01-14-2009, 05:47 PM
#35
Haterade by da gallon!
Join Date: Jun 2008
Location: Valdosta GA
Posts: 2,306
Originally Posted by SHADY280
apparently if im booking it along the freeway at 120 mph, even the police helicopters cant keep up. my buddy is a pilot, he was amazed i could go that fast, but saying that, hes never topped 70mph in a car. yeah ive tested my car against the radar signs, seems to be bang on accurate.
your whole "colder air" idea must be a load of guanno!!!
lol i guess its dif. in canada... the mounties must have awesome speed guns 
01-15-2009, 12:58 AM
#36
eff good grammar
Join Date: Dec 2007
Location: Deadford OR
Posts: 1,578
Originally Posted by 280zx2by2
downforce isnt much of a help at 110-120 mph but like you said frontal surface area and the flow of air around it would be the bigest hinderance of speed... downforce just keeps you from turning that speed into a highspeed wreck (picture the F1 cars flipping 30 feet in the air)...
Originally Posted by 280zx2by2
and you do realize that planes have these things called wings that have 10X the surface area of a car... i thing your seriously under estimating the force of GRAVITY.... lol
Originally Posted by 280zx2by2
my z dosent weight 1700 lbs, and you still fail...
Originally Posted by 280zx2by2
what is kph? kicks per hour?
scary at 62 mph!!!! it must have been WORN OUT
scary at 62 mph!!!! it must have been WORN OUT
Originally Posted by KingDatsun1
yes, I was wondering what the best gearing would be if you wanted a high top speed Z. My Z is running 55mph at like 3k rpm in 5th. lol I think thats really high
sounds like your a little better off than i am.
this can work the other way, depending on the gearing if they are too tall of gears and the car isnt powered very well there will be resistance in trying to move the drive train on top of moving the car across the ground and through the air but you would need really tall gears and a lawn mower engine unless your final gear is unusually long.
01-15-2009, 03:17 PM
#37
Head Muckraker
Join Date: Oct 2001
Location: Bay Area
Posts: 9,221
Try this site: http://www.geocities.com/z_design_studio/
01-18-2009, 02:39 PM
#38
Registered User
Join Date: Jul 2007
Posts: 27
From what I've read, S30's seem to "top out" around 125-135 MPH without any aero. I gather that the S130's can (more comfortably) maintain that speed due to the better Cd. "stock for stock"
(ducks head...)
Last edited by hughdogz; 01-18-2009 at 02:43 PM.
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