the same ole 3.73 ????
01-17-2007, 09:43 PM
#11
5th Gear Member
Join Date: Apr 2006
Location: OC, Cali
Posts: 3,293
RE: the same ole 3.73 ????
ORIGINAL: AdderMk2
both... but which ones
ORIGINAL: PX429
I'm running both correction gears plus I have a GPS that tells me my exact speed.
I have 275/40/17's
I'm running both correction gears plus I have a GPS that tells me my exact speed.
I have 275/40/17's
01-17-2007, 10:09 PM
#14
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
RE: the same ole 3.73 ????
Mathematically... it just doesnt work like that... you can directly connect the speed of the car to the RPMs of the engine based on the rolling diameter of a tire and the gears in the diff/trans.
3.08's is about 2250ish at 80mph, 3.55 is about 2500ish, 3.73 is 2650ish, and 4.10's SHOULD be 2800ish...
3.08's is about 2250ish at 80mph, 3.55 is about 2500ish, 3.73 is 2650ish, and 4.10's SHOULD be 2800ish...
01-17-2007, 10:13 PM
#15
6th Gear Member
Join Date: Feb 2006
Location: Howard City, MI
Posts: 5,956
RE: the same ole 3.73 ????
ORIGINAL: PX429
my tach is off?[sm=dontgetit.gif]
I doubt that.
ORIGINAL: AdderMk2
Thats weird... you should be closer to 2800rpm.... perhaps your tach is slightly off
Thats weird... you should be closer to 2800rpm.... perhaps your tach is slightly off
I doubt that.
01-17-2007, 10:16 PM
#17
5th Gear Member
Join Date: Apr 2006
Location: OC, Cali
Posts: 3,293
RE: the same ole 3.73 ????
ORIGINAL: 5.0stanger
He is saying your tach is possibly reading lower than it should be...Mine reads higher(stock)
ORIGINAL: PX429
my tach is off?[sm=dontgetit.gif]
Edit: wait so when i shift am i really shifting at 6500 instead of 6200?
I doubt that.
ORIGINAL: AdderMk2
Thats weird... you should be closer to 2800rpm.... perhaps your tach is slightly off
Thats weird... you should be closer to 2800rpm.... perhaps your tach is slightly off
Edit: wait so when i shift am i really shifting at 6500 instead of 6200?
I doubt that.
lol...
01-17-2007, 10:23 PM
#20
5th Gear Member
Join Date: Apr 2006
Location: OC, Cali
Posts: 3,293
RE: the same ole 3.73 ????
ORIGINAL: AdderMk2
Are you possibly running an aftermarket tranny... perhaps a T5Z with a .63 overdrive?
ORIGINAL: PX429
idk... it just works out that way. at least on my end.
idk... it just works out that way. at least on my end.
ORIGINAL: OnyxCobra
I have 3.55s and at 80mph i run about 2500rpm, so Adder's math is pretty accurate. I'd definitely expect higher than 2600rpm @ 80mph with 4.10 gears.
I have 3.55s and at 80mph i run about 2500rpm, so Adder's math is pretty accurate. I'd definitely expect higher than 2600rpm @ 80mph with 4.10 gears.
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