|
Author
|
Topic: How slow will I run at Palmdale?
|
xchpstang
¯
Member # 1206
|
posted
 
 
Does anyone have any idea how much slower I will run at Palmdale compared to a track at sea level? I've tried to run at sea level and ran approximately 13.1 to 13.5 at 110 to 112 MPH according to my G-tech meter. I think Palmdale is well over 3000 feet in the high desert. My car is all motor by the way.
--------------------
04 Cobra, K&N FIPK,
Posts: 239 | From: Turlock | Registered: Apr 2002
| :
|
|
PeNiNsula302
¯
Member # 1061
|
posted
i wouldnt expect mph's that high, im pretty sure thats the g-techs only flaw...
Posts: 3423 | Registered: Mar 2002
| :
|
|
xchpstang
¯
Member # 1206
|
posted
I actually run about 285 to the wheels with a slightly gutted and pretty light 5 speed 90 LX coupe. My car lacks any power windows, locks, etc. from the factory so I think the MPH on the G-tech is fairly accurate. Also the tires were 225/55R16 Bridgestone radials.
--------------------
04 Cobra, K&N FIPK,
Posts: 239 | From: Turlock | Registered: Apr 2002
| :
|
|
Drew B
¯
Member # 698
|
posted
i think g-techs are crap in my opinion they are not accurate at all and you won't run the same time on the street that you will at the track.
--------------------
AKA.GR40coupe
Posts: 1992 | From: Nor-cal | Registered: Jan 2002
| :
|
|
JoeT
¯
Member # 298
|
posted
just going off what I've seen, subtract 4-5 mph from the G-tech, and Palmdale is 3600' I believe so you're gonna lose approx another 0.5 in ET and 5 mph.
you can look up density altitude corrections on the internet for drag racing, but Palmdale is roughly 1/2 a second slower for us 12/13/14 second guys.
I figure you'd be around 13.6 @ 102 @ 3600', see how close I get.
The G-tech ET is usually decent (I've run at Sac and Sears plenty of times with the G-tech recording the run as well, usually within 1 or 2 tenths for ET, but around 4-5 mph high on the mph)
--------------------
1984 Ford Tempo AOD--- RIP
Posts: 6785 | From: San Jose | Registered: Jun 2001
| :
|
|
hidnn.o.s.
¯
Member # 1219
|
posted
quote:
Originally posted by GR40Coupe:
i think g-techs are crap
![[patriot]](graemlins/patriot.gif)
--------------------
R.I.P. Willie G. You are missed on this forum
Posts: 15950 | Registered: Apr 2002
| :
|
|
xchpstang
¯
Member # 1206
|
posted
I don't mean to get all technical but I looked through the Auto Math Handbook and came up with this: me in the car about 3100 lbs, 285 to the wheels is about 335 at the flywheel.
Plugged in to this formula it comes out to ((flywheel H.P./weight)^(1/3))*234= MPH.
With this I come out with 111.5 MPH.
Not too far off I would say.
--------------------
04 Cobra, K&N FIPK,
Posts: 239 | From: Turlock | Registered: Apr 2002
| :
|
|
FasterDamnit
Bad Attitude
Member # 442
|
posted
My car is 3060 w/out driver. 303rwhp. 112.xmph. HP i only part of the equation. The area under you torque cruve would give you a more accurate picture of how fast your car can accelerate.
--------------------
'92 LX T5
Looked stock, went 11's 11.90 at 115mph.
'65 Mustang 347
www.fordmuscle.com
Livin' in the Carolina Pines
Posts: 2971 | From: NorCal | Registered: Sep 2001
| :
|
|
PeNiNsula302
¯
Member # 1061
|
posted
calculations and guessing can only do so much....Maybe your g-tech is indeed special and you will pull that mph, im just saying from the many post here on that little device people have track proven the e.t's to be relatively close but the mph to be, as shade-tree said, 4-5mph's off. I guess all you can really do is run it and see after that ![[Confused]](confused.gif) .
Posts: 3423 | Registered: Mar 2002
| :
|
|
xchpstang
¯
Member # 1206
|
posted
OK, I sense I sense the original G-tech is not a fine piece of precision engineering thus I'll take everyone's advice and see what I run at Palmdale next Sunday. Anyone tried that newer generation G-tech with graphs, virtual dyno, and neat little screen?
--------------------
04 Cobra, K&N FIPK,
Posts: 239 | From: Turlock | Registered: Apr 2002
| :
|
|
PeNiNsula302
¯
Member # 1061
|
posted
Havent tried it but i want it!!! I just need to find $250 lying around somewhere, hehe.....
Posts: 3423 | Registered: Mar 2002
| :
|
|
Email this post to someone!
Printer friendly view of this Ford topic
