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In a message dated 6/1/2008 10:14:18 PM Eastern Daylight Time,
Mk1Scirocco16v@... writes:

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close ratio
trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as well
replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave

Hey Dave I copied and pasted this from Mike a while back he put a link on it.
"Which gear box are you working on?

Which gears are you interested in converting? 5th only or others, too.

I've done a taller 5th gear on two different boxes used on the I5 engine
and wrote it up and posted it in the Files section of this group, here:

_ () " This is a
quote from Mike Mccarty.



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In a message dated 6/1/2008 10:47:32 PM Eastern Daylight Time, VWTGS@...
writes:

In a message dated 6/1/2008 10:14:18 PM Eastern Daylight Time,
_Mk1Scirocco16v@Mk1Scirocco_ (mailto:Mk1Scirocco16v@...) writes:

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close ratio
trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

Very sorry Dave I didn't check the link before I sent it. It appears it's a
bad link now. I guess when Mike left he took his valuable info with him. I
saved it a while back when this question came up. I wish I would have copied and
pasted that info somewhere else. Again Sorry.

Ronnie Pugh
Louisa VA



****Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
()

In a message dated 6/1/2008 10:59:12 PM Eastern Daylight Time,
dkorb@... writes:

From: rabbit16v_77
To: _ev_update@yahoogrouev_upd_ (mailto:ev_update@...)
Sent: Sunday, June 01, 2008 9:13 PM
Subject: [ev_update] Transmission Gearing

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close ratio
trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as well
replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave

Changing the 5th gear will drop the RPMs and increase the fuel mileage. We
have done it many times on the Rabbits and Jetta A1 and A2. With the 4K and 9A
trans you put in the diesel 5th gear and it's a major drop in RPMs. Mike had
done it and was sucessful at it and gave the specs he got from it. So it will
help. I didn't save his results but, I recall a nice drop and increase in MPG.
The 5th gear can be changed without major surgery. You can get to the 5th gear
without removing the trans. If you look in your Bentley it will give you the
run down on replacing the 5th gear. It may even give you the gear ratios of the
manual transmissions.

Ronnie Pugh



****Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
()

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close ratio
trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as well
replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave

I am no expert.

My first inclinations however would be not change the gear ratio. A lower ratio may only contribute to a higher level of unburned fuel out your back side. Many misconceptions exist on the subject of lower rpm may deliver higher fuel mileage. I personally know of several examples where this would not be true and infact had to increase rpm on a ford six cylinder 300 cu/in to get the sweet spot out of that engine. It was installed in a e100 ford van. I finally got the rpm in the range that proved to be much more efficient and some times got as high as 23 mpg from it and commonly saw 21.
VW'S development of the boxer engine did rely on high torque and low rpm which did serve them well for decades, but the newer engines have a tendency to rev higher and smaller wheels help in this design with the sole purpose of higher fuel economy.
I recently took a trip from the Canadian border to Kansas City on hy I29 which has a posted speed limit of 75 mph along 2 states. While I may be an exception....I posted my best fuel mileage while traveling 80mph in South Dakota and north Dakota which was 23.6 mpg. At slower speeds my mileage dropped slightly to 22.7 and as low as 21.7.(read wind events as well)
If you wish to try your theory on the cheap........mount some BIG OLE TRAILER TIRES on the back of your van and watch your mileage plummet. Your van will give you optimum mileage as the revs increase even more than 4500 rpm.
My 93 EV w/automatic has 163 I miles on it and used less than 1/2 cup of oil at highway speed in 3000 miles and I pressed it into service as much as the law would allow plus 5. It breaths very easy at higher RPM and if you lug that engine, you are simply pouring raw partially unburned fuel out the back. The gear ratio on your van should not be tampered with.

Don't be silly. Have you ever seen the Bentley or the parts catalog?
There are dozens of transmission and gear combinations, which only
demonstrates there is NO one best set of gears. Different situations
mean different gears, and different trade-offs. The hunt for better
mileage is only one (somewhat dubious) goal. Lowering engine rpm at
highway speed is a perfectly reasonable thing.

--- In ev_update@..., "Downtown Computers" <dkorb@...> wrote:

I am no expert.

My first inclinations however would be not change the gear ratio. A

lower ratio may only contribute to a higher level of unburned fuel
out your back side. Many misconceptions exist on the subject of lower
rpm may deliver higher fuel mileage. I personally know of several
examples where this would not be true and infact had to increase rpm
on a ford six cylinder 300 cu/in to get the sweet spot out of that
engine. It was installed in a e100 ford van. I finally got the rpm in
the range that proved to be much more efficient and some times got as
high as 23 mpg from it and commonly saw 21.

VW'S development of the boxer engine did rely on high torque and low

rpm which did serve them well for decades, but the newer engines have
a tendency to rev higher and smaller wheels help in this design with
the sole purpose of higher fuel economy.

I recently took a trip from the Canadian border to Kansas City on hy

I29 which has a posted speed limit of 75 mph along 2 states. While I
may be an exception....I posted my best fuel mileage while traveling
80mph in South Dakota and north Dakota which was 23.6 mpg. At slower
speeds my mileage dropped slightly to 22.7 and as low as 21.7.(read
wind events as well)

If you wish to try your theory on the cheap........mount some BIG

OLE TRAILER TIRES on the back of your van and watch your mileage
plummet. Your van will give you optimum mileage as the revs increase
even more than 4500 rpm.

My 93 EV w/automatic has 163 I miles on it and used less than 1/2

cup of oil at highway speed in 3000 miles and I pressed it into
service as much as the law would allow plus 5. It breaths very easy at
higher RPM and if you lug that engine, you are simply pouring raw
partially unburned fuel out the back. The gear ratio on your van
should not be tampered with.

----- Original Message -----
From: rabbit16v_77
To: ev_update@...
Sent: Sunday, June 01, 2008 9:13 PM
Subject: [ev_update] Transmission Gearing


I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close ratio
trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as well
replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave





[Non-text portions of this message have been removed]

That's kind of interesting actually. The fifth gear could stand to
be taller. If it can be done without a tranny drop it shouldn't be
too pricey.

Much as I like the 5 cyl/5 speed combo, I've personally always
thought that 4th and 5th are a bit too close, and 5th was not tall
enough considering how the engine spins up at 75 mph or so. The fact
that it will pull hills in 5th is another clue for me.

Pete

Changing the 5th gear will drop the RPMs and increase the fuel

mileage. We

have done it many times on the Rabbits and Jetta A1 and A2. With

the 4K and 9A

trans you put in the diesel 5th gear and it's a major drop in RPMs.

Mike had

done it and was sucessful at it and gave the specs he got from it.

So it will

help. I didn't save his results but, I recall a nice drop and

increase in MPG.

The 5th gear can be changed without major surgery. You can get to

the 5th gear

without removing the trans. If you look in your Bentley it will

give you the

run down on replacing the 5th gear. It may even give you the gear

ratios of the

manual transmissions.

Ronnie Pugh



****Get trade secrets for amazing burgers. Watch "Cooking

with

Tyler Florence" on AOL Food.
(

NCID=aolfod00030000000002)

[Non-text portions of this message have been removed]

It is an intresting question...

If you drove one particular style in only one kind of traffic in only one kind of weather always on a flat surface with no wind....i bet you could improve the milage and performance by modifying the gear to always be in the sweet spot. It would be easy to find this spot at a qualified dyno shop too, where it is flat and no wind. Pick the speed that you always drive at and use the dyno to determine the optimum performance/milage rpm range for the currant tune up you would have on your EV. But with this 5 cylinder, it would be a range, not just one particular number...and the range would include some pretty high numbers compared to older engines

So, if I already have a good Passat trans and I have to pull the
trans to do the bearings then wouldn't I just put the Passat trans in
and not mess with the gearing of the EV trans?? Seems that it would
be simpler just to swap the trannies since they will both be out.
The question, I guess, would be if it's the VR6 O2A trans or the 16v
O2A trans that we can swap with our EV manual transmissions. I have
the 16v version (90 through 93 Passat) and if the bellhousing was
different THEN I could just swap the gears.

Dave


--- In ev_update@..., VWTGS@... wrote:

In a message dated 6/1/2008 10:59:12 PM Eastern Daylight Time,
dkorb@... writes:

From: rabbit16v_77
To: _ev_update@yahoogrouev_upd_ (mailto:ev_update@...)
Sent: Sunday, June 01, 2008 9:13 PM
Subject: [ev_update] Transmission Gearing

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close

ratio

trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as

well

replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave

Changing the 5th gear will drop the RPMs and increase the fuel

mileage. We

have done it many times on the Rabbits and Jetta A1 and A2. With

the 4K and 9A

trans you put in the diesel 5th gear and it's a major drop in RPMs.

Mike had

done it and was sucessful at it and gave the specs he got from it.

So it will

help. I didn't save his results but, I recall a nice drop and

increase in MPG.

The 5th gear can be changed without major surgery. You can get to

the 5th gear

without removing the trans. If you look in your Bentley it will

give you the

run down on replacing the 5th gear. It may even give you the gear

ratios of the

manual transmissions.

Ronnie Pugh



****Get trade secrets for amazing burgers. Watch "Cooking

with

Tyler Florence" on AOL Food.
(

NCID=aolfod00030000000002)

[Non-text portions of this message have been removed]

So, if I already have a good Passat trans and I have to pull the
trans to do the bearings then wouldn't I just put the Passat trans in
and not mess with the gearing of the EV trans?? Seems that it would
be simpler just to swap the trannies since they will both be out.
The question, I guess, would be if it's the VR6 O2A trans or the 16v
O2A trans that we can swap with our EV manual transmissions. I have
the 16v version (90 through 93 Passat) and if the bellhousing was
different THEN I could just swap the gears.

Dave


--- In ev_update@..., VWTGS@... wrote:

In a message dated 6/1/2008 10:59:12 PM Eastern Daylight Time,
dkorb@... writes:

From: rabbit16v_77
To: _ev_update@yahoogrouev_upd_ (mailto:ev_update@...)
Sent: Sunday, June 01, 2008 9:13 PM
Subject: [ev_update] Transmission Gearing

I have a 1993 EV with a 5 speed manual trans and even though the
transmission is in good working condition it is a rather close

ratio

trans meaning it revs high on the freeway. So, I have a few
questions for you gurus out there:

1. What type of transmission does the EV use? O2A?

2. What is the gearing for our EV manuals?

3. With a little swapping of parts, would it help my fuel
consumption if I were to put in a taller transmission? I have a
trans out of a 91 Passat that is just laying around and I know the
gears are good as I drove the car before I parted it.

I have to replace the rods and main bearings and since some
engineering genius decided to hid two oil pan bolts behind the
flywheel I have to pull the trans now. Sooo, I figured I may as

well

replace the clutch and look into swapping the transmissions if it's
possible.

Thanks!

Dave

Changing the 5th gear will drop the RPMs and increase the fuel

mileage. We

have done it many times on the Rabbits and Jetta A1 and A2. With

the 4K and 9A

trans you put in the diesel 5th gear and it's a major drop in RPMs.

Mike had

done it and was sucessful at it and gave the specs he got from it.

So it will

help. I didn't save his results but, I recall a nice drop and

increase in MPG.

The 5th gear can be changed without major surgery. You can get to

the 5th gear

without removing the trans. If you look in your Bentley it will

give you the

run down on replacing the 5th gear. It may even give you the gear

ratios of the

manual transmissions.

Ronnie Pugh



****Get trade secrets for amazing burgers. Watch "Cooking

with

Tyler Florence" on AOL Food.
(

NCID=aolfod00030000000002)

[Non-text portions of this message have been removed]

In a message dated 6/2/2008 11:35:15 PM Eastern Daylight Time,
Mk1Scirocco16v@... writes:

So, if I already have a good Passat trans and I have to pull the
trans to do the bearings then wouldn't I just put the Passat trans in
and not mess with the gearing of the EV trans?? Seems that it would
be simpler just to swap the trannies since they will both be out.
The question, I guess, would be if it's the VR6 O2A trans or the 16v
O2A trans that we can swap with our EV manual transmissions. I have
the 16v version (90 through 93 Passat) and if the bellhousing was
different THEN I could just swap the gears.

Dave

A Passat transmission will not fit. The 4 cylinder bellhousing and 5 cylinder
bell housing are different.


Ronnie Pugh
Louisa Va



****Get trade secrets for amazing burgers. Watch "Cooking with
Tyler Florence" on AOL Food.
()