Improved Fuel Mileage. The 4.1 is here
10-18-2006, 11:41 AM
#26
always filling [the c]up
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Originally Posted by BOOSTD 7
Rick Engman hasn't produced a junky product in his life n00b, not that you'd even have a clue who Rick Engman is.
As said, he got owned. Total ignorance right there.
10-18-2006, 02:42 PM
#28
Hmmm - differential options are nice to have when you are looking to make decent power. I doubt anyone looking to double the stock HP to the wheels (if not more) has a lot of use for first gear. You simply can't floor the car and maintain traction. If you are cutting throttle to get traction, you are wasting the ponies you invested to get. If you can decrease your overall gear ratios and buy more full throttle time at the drag strip, you will improve your quarter mile times. It also raises the top speed of each gear i.e. 5th is good to 159 instead of 147. If you do not have enough hp to use the traction you generate now, then the modest gas savings possibility of a 4.1 or 3.9 rear might be considered marginal. Those people with a first gear smoke show are probably much more interested.
Are these diff's Rx-8 diff's stuffed with different internals?
Are these diff's Rx-8 diff's stuffed with different internals?
10-18-2006, 03:15 PM
#29
Rally Car Racer
Originally Posted by maxxdamigz
Those people with a first gear smoke show are probably much more interested.
10-20-2006, 02:31 PM
#32
Boost Junkie
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I believe the speedometer and odometer are based on wheel revolutions, not the drive ratio. I do not believe the sensor is in the diff.
So... what is the availability, and is there an install guide, and is it still similar to the factory in its workings (I think its a quaife no?)
slavearm
So... what is the availability, and is there an install guide, and is it still similar to the factory in its workings (I think its a quaife no?)
slavearm
10-21-2006, 01:23 PM
#33
Originally Posted by slavearm
I believe the speedometer and odometer are based on wheel revolutions, not the drive ratio. I do not believe the sensor is in the diff.
So... what is the availability, and is there an install guide, and is it still similar to the factory in its workings (I think its a quaife no?)
slavearm
So... what is the availability, and is there an install guide, and is it still similar to the factory in its workings (I think its a quaife no?)
slavearm
We retain the stock LSD mechanisms and change the ring and pinion. We may or may not have one available this week prior to our Sevenstock trip.
Paul.
10-27-2006, 01:32 AM
#34
Originally Posted by Mazmart
The speedo readings are not from the diff or the gearbox but based on wheel speed just as you indicated, therefore the readings would be completely unaffected.
We retain the stock LSD mechanisms and change the ring and pinion. We may or may not have one available this week prior to our Sevenstock trip.
Paul.
We retain the stock LSD mechanisms and change the ring and pinion. We may or may not have one available this week prior to our Sevenstock trip.
Paul.
Couple discussions in "The Tech Garage" seems to indicate changing the ratio does affect the reading in the speedo and odometer
https://www.rx8club.com/showthread.p...ht=final+drive
https://www.rx8club.com/series-i-tech-garage-22/diff-ratio-44806/
https://www.rx8club.com/showthread.p...t=speed+sensor
11-30-2006, 07:58 AM
#36
90% Carbon-100% Power
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I ll soon have cusco 1.5 type rs lsd if i have a 3.9 final drive will i have a problem with that??I mean will i have a problem cause i won't have a stock lsd???
11-30-2006, 08:13 AM
#37
Originally Posted by GrRx8MaZdA
I ll soon have cusco 1.5 type rs lsd if i have a 3.9 final drive will i have a problem with that??I mean will i have a problem cause i won't have a stock lsd???
Paul.
11-30-2006, 08:30 AM
#39
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With arround 500+ crank hp the 3.9 will be good right?Or too much??And also see your last pm
Last edited by GrRx8MaZdA; 11-30-2006 at 08:36 AM.
11-30-2006, 08:53 AM
#40
Originally Posted by GrRx8MaZdA
With arround 500+ crank hp the 3.9 will be good right?Or too much??And also see your last pm
Paul.
11-30-2006, 09:25 AM
#41
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I just mean which one will be the best for me the 3.9 or 4.1 with my setup??I just don't want to be "slow" if you know what i mean..But i ll gain a alot from lancing-less spinning etc right??
Please don't forget my total price so we can proceed Paul..Sorry for all the questions but i am very anxious guy and i want only the best parts..I really appreciate all your help
Please don't forget my total price so we can proceed Paul..Sorry for all the questions but i am very anxious guy and i want only the best parts..I really appreciate all your help
11-30-2006, 09:55 AM
#42
That's a judgement call you will have to make. I don't know what your application is exactly; drag race, road race. Serious racers change final drive ratios and other gearing according to the track they are at. Some rebuild their diffs and gearboxes after every race.
I would imagine that in your application the 3.9 will be effective (Better than 4.1?).
Paul.
I would imagine that in your application the 3.9 will be effective (Better than 4.1?).
Paul.
11-30-2006, 09:57 AM
#43
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So please make me a price quote for 3.9 shipped and a price quote for a 4.1 shipped..Just the pinion and ring as we said..Ok??And then i ll tell you which one..
I like being fast everytime anytime anywhere..The relationship with my car is very passionaite so i want to move fast!!
The 4.1 is a big difference over the stock one??
I like being fast everytime anytime anywhere..The relationship with my car is very passionaite so i want to move fast!!
The 4.1 is a big difference over the stock one??
Last edited by GrRx8MaZdA; 11-30-2006 at 09:59 AM.
11-30-2006, 10:34 AM
#44
Originally Posted by GrRx8MaZdA
So please make me a price quote for 3.9 shipped and a price quote for a 4.1 shipped..Just the pinion and ring as we said..Ok??And then i ll tell you which one..
I like being fast everytime anytime anywhere..The relationship with my car is very passionaite so i want to move fast!!
The 4.1 is a big difference over the stock one??
I like being fast everytime anytime anywhere..The relationship with my car is very passionaite so i want to move fast!!
The 4.1 is a big difference over the stock one??
None of this is a 'Big' difference. They are pieces of the puzzle that add up to one's desired outcome. Together your selection of parts should combine to make just what you want.
Paul.
12-01-2006, 03:30 PM
#45
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Originally Posted by Conundrum
That is interesting to know...
Couple discussions in "The Tech Garage" seems to indicate changing the ratio does affect the reading in the speedo and odometer
https://www.rx8club.com/showthread.p...ht=final+drive
https://www.rx8club.com/showthread.php?t=44806
https://www.rx8club.com/showthread.p...t=speed+sensor
Couple discussions in "The Tech Garage" seems to indicate changing the ratio does affect the reading in the speedo and odometer
https://www.rx8club.com/showthread.p...ht=final+drive
https://www.rx8club.com/showthread.php?t=44806
https://www.rx8club.com/showthread.p...t=speed+sensor
12-08-2006, 05:25 PM
#46
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Hey can you please send me total shipped price for the 4.1?Only the ring and pinion cause as i said i can't send my lsd...
You also have pm.
Thanks
You also have pm.
Thanks
