Question for 5-Speed people with 3.27 gears... - TCCoA Forums
 
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post #1 of 24 (permalink) Old 10-02-2003, 01:30 PM Thread Starter
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Question for 5-Speed people with 3.27 gears...

For those who have swapped the factory 2.73 gears for 3.27 gears...are you happy with the swap? Is your first gear useless? What kind of gas mileage difference did you notice. What kind of performance increase did you get. I'm basically looking for impressions, but data like 1/4 mile time improvements or dyno numbers would be cool also.

I'm contemplating the swap and would like to know opinions before I jump in!

Glen "RustyUL" Weldon

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post #2 of 24 (permalink) Old 10-02-2003, 11:42 PM
 
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I've got this setup. Dyno numbers will not change. Gas numbers will change only minimally. I'm getting 18-20 mpg in the city driving the hell out of it. First is pretty damned useless.
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post #3 of 24 (permalink) Old 10-03-2003, 07:19 AM Thread Starter
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If you were in a 1/4 mile timed run, would you use first, or start out in second?

Glen "RustyUL" Weldon

94 Thunderbird SC - 5 Speed -- Picture Here
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post #4 of 24 (permalink) Old 10-03-2003, 12:11 PM
 
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1st

Here's how my speeds go:

0 - 30ish - 1st
30 - 45ish - 2nd
45 - 80ish - 3rd
80 - 120 - 4th
120 - bout 150 - 5th

That is my rough estimating. Of course my speedo if off a 1-2 mph also. Starting in second is wayyyy to slow. If you gears were taller, that would make sense, but not with 3.27s. Plus, your clutch will love you for not doing that.

Also, your speeds will be different because 94-95 M5R2s had a different first gear. Maybe you will not feel like 1st is so much of a waste.
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post #5 of 24 (permalink) Old 10-05-2003, 06:55 PM Thread Starter
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Thanks. I appreciate the insight. I'm putting 3.27 gears on the wishlist!

Glen "RustyUL" Weldon

94 Thunderbird SC - 5 Speed -- Picture Here
1 of 722 1994 SC 5-speeds made.
Soilid Engine Mounts, B&M Ripper Shifter, Tokico Shocks
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post #6 of 24 (permalink) Old 10-06-2003, 12:49 PM
 
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I have a 95 SC 5 speed that I am also considering puting in the 3:27 gears. Will it still get me 24mpg highway. By the way, I am in Ozark, AL.
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post #7 of 24 (permalink) Old 10-06-2003, 01:08 PM Thread Starter
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Great! Another Alabama person. We've been kicking around a get together. Nothing is set yet, but maybe soon!

Glen "RustyUL" Weldon

94 Thunderbird SC - 5 Speed -- Picture Here
1 of 722 1994 SC 5-speeds made.
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post #8 of 24 (permalink) Old 10-07-2003, 08:57 AM
 
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I averaged 24 mpg on the highway a month or two ago. I should get about that much when I head up to South Carolina next weekend. (I do not drive on the highway all that often.)
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post #9 of 24 (permalink) Old 10-07-2003, 09:01 AM
 
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I have 3.27's in my 5sp, and if I could do it over again.....I would have when with 3.08's. Your RPM's will be much higher at highway speeds, but the up side it that 5th is very torquee on the highway.

If you do alot of highway driving or travelling, go with 3.08's.

Good Luck,
Calvin
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post #10 of 24 (permalink) Old 10-07-2003, 10:11 AM
 
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So will the 3.08's improve the car much and are they available for a 95. I thought it went from 2.73's to 3.27's. If so where can I get a set and how much it run to install.
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post #11 of 24 (permalink) Old 10-07-2003, 11:07 AM
 
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Do a search on Ebay. I got them from a 88 Mustang GT off of Ebay.

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post #12 of 24 (permalink) Old 10-07-2003, 07:57 PM
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Ive got 3.27's in my 95 5 speed and I love them.

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post #13 of 24 (permalink) Old 10-15-2003, 08:00 PM
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The 3.27'a are a great way to go. I would completely avoid the 3.55's......the first gear in that set-up is a total waste of time. Don't go higher than the 3.27's.

Just my .02 worth

1997 LX Sport 4.6L 2.73 , MODS=SCT tuned/J-Mod/Trans Cooler/Dyno max Cat-Back/NgkPlugs/Mac cold air/March UD's/FRPP aluminumcarrier3.73's(spare for strip use)/ PI cams + PI intake manifold w/adapter plate/ Mark VIII Convertor/80mm L-Maf/70mm TB/ Mark VIII 1 piece shaft/Cobra R' wheels/ Kumhos 235/60/16 - White leather w/ blue cloth seats - white face gauges in 95 cluster
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post #14 of 24 (permalink) Old 10-17-2003, 08:46 AM
 
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I love my 3.27's in my 1990 5 speed. I'd recommend it.

Jeff
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post #15 of 24 (permalink) Old 10-24-2003, 09:20 PM
 
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I like them.
My gas milage when from 22 to about 19.
just putting around in town you have to jump out of first really quick but in my opinion not too bad.

it seems like a nice trade off.
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post #16 of 24 (permalink) Old 10-26-2003, 10:03 PM
 
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After I put the 3.27s in my '89 XR-7, first gear was pretty much useless for racin'. Dump the clutch & shift into second.

Now I've changed to a late model M5R2 & OH BABY!!!!!!!!!!!!!!! That is the tranny that should have been in all the SCs / XR-7s. I can actually hold 1st gear for a while before shifting. The car doesn't hop as much as it used to either. The gears are evenly spaced, so shifting drops the RPM back to the same place every shift.

68COUGAR
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post #17 of 24 (permalink) Old 10-27-2003, 07:21 AM Thread Starter
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I didn't realize the M5R2 wasn't in all the SC's/XR7's. I have one in my 94. What I gather is that it works better with 3.27's than what you had?

Glen "RustyUL" Weldon

94 Thunderbird SC - 5 Speed -- Picture Here
1 of 722 1994 SC 5-speeds made.
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post #18 of 24 (permalink) Old 10-27-2003, 09:28 AM
 
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The late-model M5R2 (94-95 tranny) has a different first gear than the 89-93s. It is much better suited for 3.27s, as it doesn't feel like such a waste of a gear.
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post #19 of 24 (permalink) Old 10-27-2003, 08:21 PM
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I had 3.27's for three years, just changed to 3.08's so I don't have to shift into 4th at the strip.

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post #20 of 24 (permalink) Old 10-27-2003, 08:22 PM
 
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He's only doing it for the track tho. He has enough power to feel fast off the line.
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post #21 of 24 (permalink) Old 10-27-2003, 08:34 PM
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True enough, on both counts

I just mentioned it because if you've got a 94-95, it's a consideration.

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post #22 of 24 (permalink) Old 10-27-2003, 09:35 PM
 
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Wink

rustyul: There are Early & Late Model 5-spds. 4th. & OD gear ratios are the same.

JJanney: The difference between the early & late model 5-spd is more than just 1st. gear. Do the Math!!!!

DLF: With my early model 5-spd & 3.27s, I trapped between 5200 & 5400. Why are you shifting into 4th. when you're 300 feet in front of the traps? You'll be quicker & faster if you hold 3rd. gear. I' was!

68COUGAR
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post #23 of 24 (permalink) Old 10-27-2003, 09:53 PM
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Quote:
Originally posted by 68COUGAR
DLF: With my early model 5-spd & 3.27s, I trapped between 5200 & 5400. Why are you shifting into 4th. when you're 300 feet in front of the traps? You'll be quicker & faster if you hold 3rd. gear. I' was!

68COUGAR
I'm not shifting into 4th, read my post again.

The 3rd gear ratios are different between the 89-93 and 94-95 M5R2's.

I trap at 5600 @ 100+ in 3rd with the 3.08's.

With the 3.27's I had to shift into 4th at about 1000', or I would have had to run the motor up to 6000 (not a good idea).

I have no idea how fast your car is, or what works for you, but I do know what works for mine

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post #24 of 24 (permalink) Old 10-28-2003, 12:25 AM
 
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"I trap at 5600 @ 100+ in 3rd with the 3.08's."
_____________________________________

OUCH!!! You're obviously at a higher level than I am. I'm only at 95.5 with 3.27's!

Lets talk about what mods I don't have, that make me run slow.

68COUGAR
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