3.27 gears! Think I'm gonna do it.

[rocky]

My drive is long and about to be longer, and with a cruising speed of 80-90 I can watch my gas gauge drop. Have 4.10s now and instead of going back with 355 I'm thinking the ever popular 3.27, gotta get my gas mileage up!



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[breeze]

Why not just get a bigger real tire. Will be equivalent to change gears without the hassle or sacrificing performance!?

[MyBlackBeasts]

My drive is long and about to be longer, and with a cruising speed of 80-90 I can watch my gas gauge drop. Have 4.10s now and instead of going back with 355 I'm thinking the ever popular 3.27, gotta get my gas mileage up!



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Do a 6-speed mod. The double OD will give you 32mpg and still have the 1st thru 4th Fun Gears!!!! :burnout:

[justbob]

Do a 6-speed mod. The double OD will give you 32mpg and still have the 1st thru 4th Fun Gears!!!! :burnout:

2,050 RPM's at 80 with 4.30's! I love it. Switching to a Yukon 4.11 now for a little more girth on the pinion. Probably gonna be 1,850 now..


Self proclaimed Builder Of Badassery.

[justbob]

Double post.

[rocky]

2,050 RPM's at 80 with 4.30's! I love it. Switching to a Yukon 4.11 now for a little more girth on the pinion. Probably gonna be 1,850 now..


Self proclaimed Builder Of Badassery.

Yes Bob that is freakin awesome! I plan on doing the swap to either a 5 or 6 speed depending on what my tax return looks like next year. 6 months she'll be paid off! Right now though I'm coughing out major bucks in gas and think I'm going to do this as a short term thing. I got my 4.10s from a buddy in my shop installed for $100, **** if he's got 3.08s I may do that. I know this is blasphemy but I gotta save some $$$ on my daily road trips. Buying a small gas saver is not an option....yuck.



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[RF Overlord]

if he's got 3.08s I may do that.Don't. There's a reason Ford skipped 3.08 in the CV and GM. Something to do with driveline resonance or harmonics...

[rocky]

Don't. There's a reason Ford skipped 3.08 in the CV and GM. Something to do with driveline resonance or harmonics...

I'm shooting for 327


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[TORINO]

327 should work good for highway mpg and at 80 you can grab 2nd and take it over 100. Might even be faster at higher speeds each gear will run out farther. Cv sports come with that ratio

[Mr. Man]

Why not buy a used econo box that gets 40 mpg+ and leave the MM for the weekends?

[marauder21]

Why not buy a used econo box that gets 40 mpg+ and leave the MM for the weekends?

My thoughts exactly..the new Ford focus are pretty nice!! And they give 40mpg

Sent from my Android

DTR + 4.10's + something =
Wreeeeeeeeeeeedam!

[rocky]

My thoughts exactly..the new Ford focus are pretty nice!! And they give 40mpg

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DTR + 4.10's + something =
Wreeeeeeeeeeeedam!

No. Not for me.

Will be interesting to see what MPG I get with the gears, I bested a 20 today if my math was right :)
If I can jump that to 30, and not get another car payment and not insure another car, mo money mo money in my pocket and maybe in a year or so go back to 410 when the manual swap is done...that's the plan.


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[SC Cheesehead]

MM power band starts around 2,500; the car's gonna be a slug with 3.27's at 60 mph...

[MOTOWN]

mm power band starts around 2,500; the car's gonna be a slug with 3.27's at 60 mph...

agreed!!!!!!!

[rocky]

MM power band starts around 2,500; the car's gonna be a slug with 3.27's at 60 mph...

Ok seriously who the $@@) drives 60mph?



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[MOTOWN]

Ok seriously who the $@@) drives 60mph?



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It wont get better @80mph!

[SC Cheesehead]

Ok seriously who the $@@) drives 60mph?



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Just saying. There's a reason they didn't come with 3.27s from the factory...

BTW, Gonna be a slug at 70 mph, FWIW...




It wont get better @80mph!

^^^^^^^ What he said...

[MOTOWN]

I know its not what you want to hear but if gas mileage is that big of a factor for you, you have the wrong 4,400lb car!

[babbage]

Don't. There's a reason Ford skipped 3.08 in the CV and GM. Something to do with driveline resonance or harmonics...

Agreed, I remember this from years ago. Stay away from that ratio.


MM power band starts around 2,500; the car's gonna be a slug with 3.27's at 60 mph...

Not when you floor it and grab 2nd gear...


^^^^^^^ What he said...[/QUOTE]


I know its not what you want to hear but if gas mileage is that big of a factor for you, you have the wrong 4,400lb car!

I get 23 mpg at 80 with 3.73's - Which I think is pretty good considering..

Gear Vendors OD could be another option.

[rocky]

I know its not what you want to hear but if gas milage is that big of a factor for you, you have the wrong 4,400lb car!

That is no doubt!
And I know the performance I love will go down the toilet but if I can squeeze some more MPGs out of her then it will help my wallet until I get over a small hump. She'll be paid off in 6 months, and hopefully by then DHS will be sucking some child support money out of my exwife so I'll have more breathing room. I'm in a position where I can do a gear swap for a bit less than most pay so I'm going to take advantage of it and see how it works. If for some reason she won't pull herself up the hill and MPG is below say 25 then I'll say bad investment and throw the 410s back in I suppose...
Also I'm saving for a ring, and no I guess I didn't learn the first time around. Sorry y'all I know this isn't Facebook so sorry about the drama but just letting you know why I'm trying to save a few bucks. it is a 4400lb car but I love it and want to drive it everyday so this may be a way I can keep doing that:)


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[MOTOWN]

That is no doubt!
And I know the performance I love will go down the toilet but if I can squeeze some more MPGs out of her then it will help my wallet until I get over a small hump. She'll be paid off in 6 months, and hopefully by then DHS will be sucking some child support money out of my exwife so I'll have more breathing room. I'm in a position where I can do a gear swap for a bit less than most pay so I'm going to take advantage of it and see how it works. If for some reason she won't pull herself up the hill and MPG is below say 25 then I'll say bad investment and throw the 410s back in I suppose...
Also I'm saving for a ring, and no I guess I didn't learn the first time around. Sorry y'all I know this isn't Facebook so sorry about the drama but just letting you know why I'm trying to save a few bucks. it is a 4400lb car but I love it and want to drive it everyday so this may be a way I can keep doing that:)


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Hell bud its life! i feel your pain at the pumps!, even if it doesnt work out for you (not saying it wont), atleast you tried numerically lower gears!

[rocky]

Thank you Motown and thank you all for the input! Stay tuned I guess lol


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[cat in the hat]

How much mpg could you pick up with this ?

I ask because I want to get the 4.10's for this spring. In most of the stuff I've found, guys are saying that you don't lose much going to the 4.10's, maybe 1 - 2 mpg. I don't put a lot of miles on this car, so it's not a deal-breaker for me.

So, if you go back to the 3.55's, you'd get that same 1 or 2 mpg back, and maybe grab 1 more mpg to the 3.27 - so figure about 3 mpg total ?

[lji372]

Ok seriously who the $@@) drives 60mph?



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Ooh ooh ooh I DO!!!

In a 35 :D

Did you look into a gv trans?

[MOTOWN]

Thank you Motown and thank you all for the input! Stay tuned I guess lol


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If the 3:37s dont work out we can put a couple of paper bags over our heads and surprise Commininhot on his way to work and swipe his Gear Vendors!:lol:

[rocky]

Ooh ooh ooh I DO!!!

In a 35 :D

Did you look into a gv trans?

Gv trans???


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[Vortech347]

I get 22mpg with the cruise at 90 with 4.10's. I can milk 24 out of it if I cruise at 70.

[MOTOWN]

Gv trans???


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http://www.mercurymarauder.net/forums/showthread.php?t=85573

[rocky]

Well I said I got 20 today and it was a shock because before any mods I was 18-19 and since tune-gears I've been besting 16! I tried to keep my foot out of it for a whole tank but that ***** hard to do!


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[lji372]

I'll trade ya for an 04 ion:D
Gets great mileage! Problem solved:banana:

[rocky]

I'll trade ya for an 04 ion:D
Gets great mileage! Problem solved:banana:

Trade, no.

However I have a crisp 8 dolla bill for ya buddy!


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[babbage]

How much mpg could you pick up with this ?

I ask because I want to get the 4.10's for this spring. In most of the stuff I've found, guys are saying that you don't lose much going to the 4.10's, maybe 1 - 2 mpg.


Only if you keep the car under 75. Past 2500 rpm the gas goes fast. With 3.73 @ 80 my tach spins at 2500rpm. You CAN get decent mileage with 4.10's just not at 80 or above.


Higher stall toque converter is another good option too for off the line performance.

[MOTOWN]

Trade, no.

However I have a crisp 8 dolla bill for ya buddy!


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LMAO!!!!!!!!!!:lol:

[cat in the hat]

Only if you keep the car under 75. Past 2500 rpm the gas goes fast. With 3.73 @ 80 my tach spins at 2500rpm. You CAN get decent mileage with 4.10's just not at 80 or above.


Higher stall toque converter is another good option too for off the line performance.

thanks, good to know.

[rocky]

Only if you keep the car under 75. Past 2500 rpm the gas goes fast. With 3.73 @ 80 my tach spins at 2500rpm. You CAN get decent mileage with 4.10's just not at 80 or above.


Higher stall toque converter is another good option too for off the line performance.

My tires are already a bit taller than stock and at 80 I'm sitting at about 27-2800...ish


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[lji372]

Trade, no.

However I have a crisp 8 dolla bill for ya buddy!


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Almost said yes till I realized there is no 8 dollar bill :(

Wait your going all wrong about this. I have no doubt justbob could get a 6cyl in there for you :D

[rocky]

Almost said yes till I realized there is no 8 dollar bill :(

Wait your going all wrong about this. I have no doubt justbob could get a 6cyl in there for you :D

Why not a 4cyl, and a big ass wing! That will help my MPG


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[lji372]

Why not a 4cyl, and a big ass wing! That will help my MPG


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I don't want you to feel underpowered :)

Actually a v6 with your gears will probably be more responsive and as good on gas than switching your rear end.

Just get a 4cyl junker for work. An sc series Saturn with a manual will get 35mpg for a $1500 car. Your putting how much dough into gears you will not be happy with?

Just my .02
Good luck man. I hope you figure it out

[MyBlackBeasts]

How much mpg could you pick up with this ?

I ask because I want to get the 4.10's for this spring. In most of the stuff I've found, guys are saying that you don't lose much going to the 4.10's, maybe 1 - 2 mpg. I don't put a lot of miles on this car, so it's not a deal-breaker for me.

So, if you go back to the 3.55's, you'd get that same 1 or 2 mpg back, and maybe grab 1 more mpg to the 3.27 - so figure about 3 mpg total ?


Everything I read said 4.10s lose 1 to 2 mpg
OEM with CAI & Lidio tune I got 21/22
4.10s I lost 1.5mpg - right in line with what everyone said
Then I installed Trilogy & went up to 24 (which to my surprise everyone with a blower said was common)
-------------------------------
To OP:

By that math, reinstall the OEM gears, get blown & make your desired mpg! :D
:lol:


I know, I read the $ thing so I know you can't go there but could not resist...

Good luck with your gear change! :)

[ctrlraven]

Drop weight, easiest way to increase gas mileage. Also bring your speed down to 60-70 mph and in wont drink the gas as much.

I did a test with my car for a few weeks, the highway part of my daily 60 mi round trip is 40 miles. I did 80 mph during the 40 miles and then the next week I did 70 mph. I saw about a 2.3 mpg increase when I went 10 mph slower.

I've got a 3500 stall converter, 4.10 gears and with 265/50-18 rear tires (effective 4.15 rear gear).

[L.Mark]

Then I installed Trilogy & went up to 24 (which to my surprise everyone with a blower said was common)

It better go up when your bolwn...:P

[NXSBOB]

Higher stall toque converter is another good option too for off the line performance.
High stall TC will really suck up more gas especially in stop and go city driving. :twocents:

[rocky]

Drop weight, easiest way to increase gas mileage. Also bring your speed down to 60-70 mph and in wont drink the gas as much.

I did a test with my car for a few weeks, the highway part of my daily 60 mi round trip is 40 miles. I did 80 mph during the 40 miles and then the next week I did 70 mph. I saw about a 2.3 mpg increase when I went 10 mph slower.

I've got a 3500 stall converter, 4.10 gears and with 265/50-18 rear tires (effective 4.15 rear gear).

I may try driving 75 but the speed limit is 75...it's hard lol.



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[lji372]

Drop weight??? Is that a fat joke? :lol:


Hey honey....does this car make me look fat? :D

[SC Cheesehead]

Only if you keep the car under 75. Past 2500 rpm the gas goes fast. With 3.73 @ 80 my tach spins at 2500rpm. You CAN get decent mileage with 4.10's just not at 80 or above.


Higher stall toque converter is another good option too for off the line performance.

^^^^^^ Yup.

[Curless]

I get 20 on the highway at 75, take your time and leave redlights very gingerly...you will notice a huge difference in your mileage...you will not get the results your looking for in these gears...

[Raleigh Marauder]

I get 20 on the highway at 75, take your time and leave redlights very gingerly...you will notice a huge difference in your mileage...you will not get the results your looking for in these gears...

Now where's the fun in that...? :D

[rocky]

I get 20 on the highway at 75, take your time and leave redlights very gingerly...you will notice a huge difference in your mileage...you will not get the results your looking for in these gears...

Leave stop light gingerly?
33899
I think I'd get beat up


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[lji372]

Leave stop light gingerly?
33899
I think I'd get beat up


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:rofl:

nice one.........

[lifespeed]

High stall TC will really suck up more gas especially in stop and go city driving. :twocents:

Yeah, I don't like the high stall and low gears. Sure, they'll give those couple tenths at the dragstrip. But they're annoying to drive, and once the car is rolling it is all about the motor. Been there, done that, got the T-shirt. I think 3.55:1 is perfect, as is the stock converter. Only thing they did wrong was not supercharge it from the factory.

[MyBlackBeasts]

It better go up when your blown...:P

Ha! I wondered who would be 1st!!! :rolleyes:

[SC Cheesehead]

Yeah, I don't like the high stall and low gears. Sure, they'll give those couple tenths at the dragstrip. But they're annoying to drive, and once the car is rolling it is all about the motor. Been there, done that, got the T-shirt. I think 3.55:1 is perfect, as is the stock converter. Only thing they did wrong was not supercharge it from the factory.

You got that right, and if Mr. Babcock would have had his way, that's the way they would have come.

[rocky]

So I get a letter from Chase about my mortgage, they said I overpaid on my escrow last year and sent me a check for over 500 freaking bucks!
Sign from the baby Jesus telling me to keep my gears? Idk...


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[Vortech347]

Put it back on your mortgage and save 1k in interest instead.

[lji372]

Put it back on your mortgage and save 1k in interest instead.

don't listen to him^^^^

have fun spend it on gas:D

or take the money you were going to spend on gears, add the 500 to that, take (sneak)the kids piggy bank, change your payroll dependents to 10 (worry about it next year), and take back all the beer bottles and get the gv transmission:beer:

[Vortech347]

Usually when I fill my MM up it takes around 17 gal.
So if you were to get an extra 2mpg it would be around 34 additional miles per tank.

Lets stay you knock down 22mpg with the 4.10's (going off my own personal actual data around 85-90mph), and jump to 24mpg with 3.27's.

On a 12,000 miles a year would spend $2127 a year based on a $3.90 a gallon with 4.10's
On a 12,000 miles a year would spend $1950 a year based on a $3.90 a gallon with 3.27's

So a 2 mpg improvement would only yield around $177 dollars a year in savings, and you would make your MM a lethargic feeling grandpa car. You would need to keep it this way for 3 years to come $31 on top of spending $500 for swapping the gears again.

Its really easy math to do.

[SC Cheesehead]

Usually when I fill my MM up it takes around 17 gal.
So if you were to get an extra 2mpg it would be around 34 additional miles per tank.

Lets stay you knock down 22mpg with the 4.10's (going off my own personal actual data around 85-90mph), and jump to 24mpg with 3.27's.

On a 12,000 miles a year would spend $2127 a year based on a $3.90 a gallon with 4.10's
On a 12,000 miles a year would spend $1950 a year based on a $3.90 a gallon with 3.27's

So a 2 mpg improvement would only yield around $177 dollars a year in savings, and you would make your MM a lethargic feeling grandpa car. You would need to keep it this way for 3 years to come $31 on top of spending $500 for swapping the gears again.

Its really easy math to do.

Yup, looks like a losing proposition anyway you cut it...

[rocky]

Put it back on your mortgage and save 1k in interest instead.

My house goes on the market may 1st so I'm keeping 500!

It's in savings...just sitting there...




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[rocky]

Usually when I fill my MM up it takes around 17 gal.
So if you were to get an extra 2mpg it would be around 34 additional miles per tank.

Lets stay you knock down 22mpg with the 4.10's (going off my own personal actual data around 85-90mph), and jump to 24mpg with 3.27's.

On a 12,000 miles a year would spend $2127 a year based on a $3.90 a gallon with 4.10's
On a 12,000 miles a year would spend $1950 a year based on a $3.90 a gallon with 3.27's

So a 2 mpg improvement would only yield around $177 dollars a year in savings, and you would make your MM a lethargic feeling grandpa car. You would need to keep it this way for 3 years to come $31 on top of spending $500 for swapping the gears again.

Its really easy math to do.

I think it would be over 2, maybe not much at all but I do see your point.
With reasoning of members and also now that I'm hood rich I'm putting this idea on hold


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[Vortech347]

You could always do an under-drive pulley. It will reduce parasitic drag on the engine and improve performance at the same time.

Even figure 4mpg in the math. Its pretty easy. Plus at higher speeds and lower RPM you will have an increased load on the engine. Just because its lower RPM doesn't mean its more efficient.

This is why I chuckle when people spend 40k on a new car because it gets 2-4mpg better than the old one and thinks it will save them thousands in a short period of time. It doesn't....

[Blackened300a]

3.27 ratio to save gas in a Marauder? Waste of time and money. Since you are running 4.10s you must have a tune so you may as well put back the 3.55s and put the stock tune back in which was geared towards gas mileage in the first place. Then the car will still have some sort of performance in it.
3.27s will just make the car a dog and result in you pushing the pedal down more and wasting even more gas which will just defeat the initial purpose.

[rocky]

3.27 ratio to save gas in a Marauder? Waste of time and money. Since you are running 4.10s you must have a tune so you may as well put back the 3.55s and put the stock tune back in which was geared towards gas mileage in the first place. Then the car will still have some sort of performance in it.
3.27s will just make the car a dog and result in you pushing the pedal down more and wasting even more gas which will just defeat the initial purpose.

I agree with half of this..
Not going back to stock tune tho, may just suck it up until I go manual.
Think you're right about the doggynesss


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[Vortech347]

2500+ for a 2-4mpg gain? You'll need to drive the car for 12-15 years to break even. Remember low RPM isn't the key. If your engine is bogged and high in load it will burn just as much fuel. Which is why 4.10 guys usually see IMPROVEMENT in city mpg. If you are really this concerned put the 3.55's back in it and change the axle ratio in the tune and call it a day. You want a tune, the increased timing helps mpg. Purchase things that reduce parasitic loss and increase engine efficiency. Stuff as simple as making sure tires are at the propper PSI will net you 1-4 depending on how low they are.

[rocky]

2500+ for a 2-4mpg gain? You'll need to drive the car for 12-15 years to break even. Remember low RPM isn't the key. If your engine is bogged and high in load it will burn just as much fuel. Which is why 4.10 guys usually see IMPROVEMENT in city mpg. If you are really this concerned put the 3.55's back in it and change the axle ratio in the tune and call it a day. You want a tune, the increased timing helps mpg. Purchase things that reduce parasitic loss and increase engine efficiency. Stuff as simple as making sure tires are at the propper PSI will net you 1-4 depending on how low they are.

I'm seeing this now. I do have a tune and getting 18 or so average. Tho I would not have NEAR 2500 in doing the swap I do see the point. A year ago my heavy line tech had a used set of 4.10s in his box, I said"bet you $100 my car won't have 4.10s by the end of the day"
I lost that bet;) later I ordered a tune from mo.
Even if the 3.27s were installed for free I'm thinking the gains if any would not be worthwhile compared to the losses. I drive mostly on the hwy but oh well. Just need to save up for a manual...
Thanks again, sometimes we think outloud on this forum and I appreciate all the very good input.


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