**** 4.083 Gears/Final Drive Installed****
09-29-2007, 07:58 PM
#141
I plan on buying one of these or the 3.9 in the near future, and was wondering if I would need any other parts (bearings, etc.) since my car only has 5,800 miles on it? Would there be any point in replacing anything with such low milage? Nice setup by the way.
09-29-2007, 09:21 PM
#142
Originally Posted by Mountain Runner
I plan on buying one of these or the 3.9 in the near future, and was wondering if I would need any other parts (bearings, etc.) since my car only has 5,800 miles on it? Would there be any point in replacing anything with such low milage? Nice setup by the way.
10-08-2007, 06:28 AM
#144
10-08-07
Update on the Gears..
Put over 200 highway miles on the car this past weekend and was able to average 29mpg. Not bad at all. I would of thought the 4.083 gears would have really killed my gas tank.
Also, driving around town I am able to average around 22mpg. If I drive it like i stole it, then its around 18mpg.
Todd
Update on the Gears..
Put over 200 highway miles on the car this past weekend and was able to average 29mpg. Not bad at all. I would of thought the 4.083 gears would have really killed my gas tank.
Also, driving around town I am able to average around 22mpg. If I drive it like i stole it, then its around 18mpg.
Todd
10-08-2007, 07:33 AM
#145
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Wow, that's tremendous mileage!
With standard 3.5 rear gears I get a little over 18 with normal driving and close to 24 on the highway... and I thought I was getting good mileage!
My 4.08's are ordered and on the way!
With standard 3.5 rear gears I get a little over 18 with normal driving and close to 24 on the highway... and I thought I was getting good mileage!
My 4.08's are ordered and on the way!
10-08-2007, 08:40 AM
#146
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Best I average with the gears completely highway is 24-25mpg, generally 23 if i'm going 75-80. Daily commute I'll average 19-20 mixed if I'm not on it. I don't know who you're doing it aceman, could be in your tune.
10-08-2007, 09:06 AM
#147
Originally Posted by VitViper
Best I average with the gears completely highway is 24-25mpg, generally 23 if i'm going 75-80. Daily commute I'll average 19-20 mixed if I'm not on it. I don't know who you're doing it aceman, could be in your tune.
My average speed on the highway was 75mph.
Im very happy my MPG
Todd
Last edited by ACEMAN; 10-08-2007 at 09:08 AM.
10-08-2007, 09:53 AM
#148
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Originally Posted by aceman
Im sure it has something to do with the list of parts I have and my tune.
My average speed on the highway was 75mph.
Im very happy my MPG
Todd
My average speed on the highway was 75mph.
Im very happy my MPG
Todd
Ironically, I've put my stock intakes back on. I have a feeling I'll make better power through the powerband with them until I get a tuner to fix the a/f that the aftermarket's screw up.
10-08-2007, 10:51 AM
#149
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I'm curious to see what happens to my mileage after I put the 4.08's in.
I got a mileage improvement when I put my headers and cats on, or when I flashed my ECU with Osiris, or maybe both. I Flashed my ECU with Osiris about two weeks after I got my headers, so it's hard for me to tell which helped. I thought the flash would richen the fuel mixture and hurt mileage, but it doesn't seem to be the case.
I've got 330 miles on this tankful of gas. The dash light just came on, but the needle isn't down to the "E" line yet. I usually put in 16 and a half to 17 gallons when I refuel.
I got a mileage improvement when I put my headers and cats on, or when I flashed my ECU with Osiris, or maybe both. I Flashed my ECU with Osiris about two weeks after I got my headers, so it's hard for me to tell which helped. I thought the flash would richen the fuel mixture and hurt mileage, but it doesn't seem to be the case.
I've got 330 miles on this tankful of gas. The dash light just came on, but the needle isn't down to the "E" line yet. I usually put in 16 and a half to 17 gallons when I refuel.
10-08-2007, 03:58 PM
#150
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Originally Posted by __jb
I'm curious to see what happens to my mileage after I put the 4.08's in.
I got a mileage improvement when I put my headers and cats on, or when I flashed my ECU with Osiris, or maybe both. I Flashed my ECU with Osiris about two weeks after I got my headers, so it's hard for me to tell which helped. I thought the flash would richen the fuel mixture and hurt mileage, but it doesn't seem to be the case.
I've got 330 miles on this tankful of gas. The dash light just came on, but the needle isn't down to the "E" line yet. I usually put in 16 and a half to 17 gallons when I refuel.
I got a mileage improvement when I put my headers and cats on, or when I flashed my ECU with Osiris, or maybe both. I Flashed my ECU with Osiris about two weeks after I got my headers, so it's hard for me to tell which helped. I thought the flash would richen the fuel mixture and hurt mileage, but it doesn't seem to be the case.
I've got 330 miles on this tankful of gas. The dash light just came on, but the needle isn't down to the "E" line yet. I usually put in 16 and a half to 17 gallons when I refuel.
10-08-2007, 04:38 PM
#151
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I couldn't agree enough with the OP.
I made a video of my 3.9's in action:
http://myspacetv.com/index.cfm?fusea...deoid=19630457
I made a video of my 3.9's in action:
http://myspacetv.com/index.cfm?fusea...deoid=19630457
10-09-2007, 07:15 AM
#152
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Originally Posted by aceman
In Maryland there is a shop that does this on site. I took my car there and was done with in a hour.
Todd
Todd
I have not read through all the pages yet, but thought I would ask. With an increase in the rev limit, what other supporting mods should you get in order to make the car safe to rev higher. Or is the Reflash is all that's needed to rev a little more.
2003 with stock 6600rpm's here.
10-09-2007, 08:27 AM
#153
Originally Posted by rhythmnsmoke
I have not read through all the pages yet, but thought I would ask. With an increase in the rev limit, what other supporting mods should you get in order to make the car safe to rev higher. Or is the Reflash is all that's needed to rev a little more.
2003 with stock 6600rpm's here.
2003 with stock 6600rpm's here.
If you want to go higher you will need head work ( springs, valves ) And from what i hear the Rod Bolts will need changed on your bottom end. Not sure what the Rods, Pistons and Crank can handle above that..
Todd
10-09-2007, 09:08 AM
#154
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Originally Posted by aceman
If you have a 2003, you should have no issue reving to 7200rpm. I have been reving that high for over 3 years.
If you want to go higher you will need head work ( springs, valves ) And from what i hear the Rod Bolts will need changed on your bottom end. Not sure what the Rods, Pistons and Crank can handle above that..
Todd
If you want to go higher you will need head work ( springs, valves ) And from what i hear the Rod Bolts will need changed on your bottom end. Not sure what the Rods, Pistons and Crank can handle above that..
Todd
So you have the Reflash AND a Utec. I was curious if the Reflash would effect the Utec's ability to do it's job. I see that you have both, so I guess not.
10-09-2007, 09:19 AM
#155
Originally Posted by rhythmnsmoke
So you have the Reflash AND a Utec. I was curious if the Reflash would effect the Utec's ability to do it's job. I see that you have both, so I guess not.
I have both because the Utec was not available yet when I had my ECU reflashed.
Todd
10-09-2007, 09:39 AM
#156
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Originally Posted by aceman
It did not effect the Utec's ability to do its job, but it made it harder to tune... I did not know what the stock values were. Also, if you buy the Utec you dont need the flash to be able to rev to 7200rpm. The Utec can change your rev limit aswell.
I have both because the Utec was not available yet when I had my ECU reflashed.
Todd
I have both because the Utec was not available yet when I had my ECU reflashed.
Todd
Does the Utec elimitate the Speed cut as well?
10-09-2007, 10:18 AM
#157
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will this give me better acceleration on a stock revup with the stock 7k limiter. And would it be more worth it to go this route on a stock revup or just go with the 3.9. Tuning and ECU will be my final mod but this gear ratio is very intresting for us NA folks.
10-10-2007, 08:59 AM
#158
Originally Posted by RBlover69
will this give me better acceleration on a stock revup with the stock 7k limiter. And would it be more worth it to go this route on a stock revup or just go with the 3.9. Tuning and ECU will be my final mod but this gear ratio is very intresting for us NA folks.
Todd
10-11-2007, 05:29 AM
#159
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yea i was thinking that also, ...my main use is for road racing when i get my car to that point. I just dont want to get these gears and find there not usuable ya know but i guess from the results its really worth it over the 3.9. And then when im able to increase my 7k rev limiter to 7.5k these should make nice use of the higher rpm. See your the only person i know with these gears, so thus the questions and no revup has them so yea....sorry for the load of questions lol
10-11-2007, 05:35 AM
#160
Originally Posted by RBlover69
yea i was thinking that also, ...my main use is for road racing when i get my car to that point. I just dont want to get these gears and find there not usuable ya know but i guess from the results its really worth it over the 3.9. And then when im able to increase my 7k rev limiter to 7.5k these should make nice use of the higher rpm. See your the only person i know with these gears, so thus the questions and no revup has them so yea....sorry for the load of questions lol
But we all have this in common...
STOCK gear ratio's
1st Gear Ratio: 3.794:1
2nd Gear Ratio: 2.324:1
3rd Gear Ratio: 1.624:1
4th Gear Ratio: 1.271:1
5th Gear Ratio: 1.000:1
6th Gear Ratio: 0.794:1
-Reverse Ratio: 3.446:1
I think these gears will work out nicely with the revup engine...Once you get the reflash, Utec or Osirus you will like them even more.
Later and good luck
Todd