2003-04 Mach 1 Registry Owners Club  


Go Back   2003-04 Mach 1 Registry Owners Club > "GO" Discussions > Engine & Drivetrain (Including trans & rear axles)

Reply
 
Thread Tools Display Modes
Old 02-01-2004, 06:46 PM   #1
Fosters
LS1-stock
 
Fosters's Avatar
 
Join Date: Dec 2003
Location: Chandler, AZ
Posts: 1,550
Smile Gears - to answer the questions once and for all

this has all the gear ratios for every ford tranny (except for the 2004 mustang one... not gonna comment on that)
http://www.vibratesoftware.com/html_...sions_Main.htm
site w/ correct ratios:
http://www.supercarsite.net/mustang_mach_1.htm



this is a speed/gear/rpm calculator:
http://www.allfordmustangs.com/Detailed/608.shtml


EDIT: Updated using .62 gear ratio, my bad
to save you all the trouble:
80mph at gear ratio:
3.55 = 2304
3.73 = 2421
4.10 = 2661
4.30 = 2791
4.56 = 2960

top speed w/ 3.55s, 5th gear @ 6798rpm (closest w/o going over 6800) = 236mph (obviously none of us will ever see anything close to this speed, so complaining about 'losing' top speed by going w/ a higher gear is pointless)

top speed w/ 3.73s, 5th gear @ 6780 = 224mph
top speed w/ 4.10s, 5th gear @ 6787 = 204mph
top speed w/ 4.30s, 5th gear @ 6769 = 194mph
top speed w/ 4.56s, 5th gear @ 6771 = 183mph


anyway, point is, doubt anyone is gonna 'lose' top speed... at least this was the main worry w/ 96-98 gt's :p (god it feels good now that I can rag on em :p)

EDIT: I guess I should update this thread with another calculation since this seems more appropriate now for my garage queen mach...

4th gear for manuals/3rd for autos (1:1), trap speeds at 6100rpm (stock engine peak) 6500 rpm (minor bolt-ons shift point), 6800 rpm (psr/cobra cams shift point)
HTML Code:
26" tire:
Gear	6100rpm		6500rpm		6800rpm
3.55:	133		141.7		148.2
3.73:	126.5		134.8		141.1
3.90:	121		129		134.9
4.10:	115.1		122.7		128.3
4.30:	109.8		117		122.4
4.56:	103.5		110.3		115.4

28" tire:
Gear	6100rpm		6500rpm		6800rpm
3.55:	143.2		152.6		159.6
3.73:	136.3		145.2		151.9
3.90:	130.3		138.9		145.3
4.10:	124		132.1		138.2
4.30:	118.2		126		131.8
4.56:	111.5		118.8		124.3
4.88:	104.2		111		116.1
I now prefer this calculator if anyone cares: http://www.4lo.com/calc/gearratio.php
__________________
2013 gt - TBD
2004 mach1 - 12.31@110.17, 1.645 60' - SOLD

Last edited by Fosters; 09-20-2013 at 03:18 PM.
Fosters is offline   Reply With Quote
Old 02-01-2004, 06:56 PM   #2
JeromeMach1
Registered User
 
Join Date: Aug 2003
Location: Simi Valley, CA
Posts: 1,383
Thanks for the numbers. I just installed 4.30s and love them. I did not cal my speedo yet so I was wondering about my rpm. I guessed right that 80mph is turning 3K rpm. I can live with that.

Jerome
__________________
03 Mach1 5spd
BB/Stroker built by Eddie Rios Addiction Motorsports
P&P 03 Heads by Al P
Custom cams by NASVT
Nazty PSR
SAE 420rwhp
SAE 387rwt
1.56 60ft
11.44ET
122.1mph
1700 DA
JeromeMach1 is offline   Reply With Quote
Old 02-01-2004, 07:05 PM   #3
Ralph Greene
Registered User
 
Ralph Greene's Avatar
 
Join Date: Mar 2003
Location: Longwood Fl
Posts: 3,724
Did you use a .62 for 5th for our cars? The first 3650's in Cobra's had a .67. The older 5 speed T45's had a .67. The earlier 5 speed 3550's had .68 (except for the .8 RR versions). Sorry to question this if you did.
__________________
Ralph Greene
SOLD
03 Mach 1 (Torch Red) 5 Speed Manual
Real Ford FR 500 18X9 Wheels
255X40X18 Michelin Tires
Steeda Sport Springs (isolators in)
Tokico HP Struts/Shocks
Steeda 4 bolt CC Plates
Poly Offset Steering Rack Bushings
Steeda TriAx Shifter
Magnaflow X/Cats
Bassani Catback with Removable Baffles
Ralph Greene is offline   Reply With Quote
Old 02-01-2004, 07:15 PM   #4
Fosters
LS1-stock
 
Fosters's Avatar
 
Join Date: Dec 2003
Location: Chandler, AZ
Posts: 1,550
Quote:
Originally posted by Ralph Greene
Did you use a .62 for 5th for our cars? The first 3650's in Cobra's had a .67. The older 5 speed T45's had a .67. The earlier 5 speed 3550's had .68 (except for the .8 RR versions). Sorry to question this if you did.
I used a .67... where did you see the .62 ratio? more reason to go 4.30s or 4.56s gonna re-run my #s soon I think... dammit, now you got me curious, i'm gonna do the test tomorrow morning w/ the digital tach and GPS going... :p

looked them up on yahoo... thanks!
__________________
2013 gt - TBD
2004 mach1 - 12.31@110.17, 1.645 60' - SOLD

Last edited by Fosters; 02-01-2004 at 07:29 PM.
Fosters is offline   Reply With Quote
Old 02-01-2004, 07:18 PM   #5
GR8 WYT
Registered User
 
Join Date: Aug 2002
Location: Hughesville, Maryland
Posts: 594
Unhappy

Where's the love for 3.73's?!?!?!?
__________________
Aluminator NA bottom end, rebuilt stock heads, Vortech V2, 3.90 gear, 514 RWHP, 468 RWTQ. Motor and tune by JPC. (Millersville, MD)
GR8 WYT is offline   Reply With Quote
Old 02-01-2004, 07:31 PM   #6
Fosters
LS1-stock
 
Fosters's Avatar
 
Join Date: Dec 2003
Location: Chandler, AZ
Posts: 1,550
Quote:
Originally posted by GR8 WYT
Where's the love for 3.73's?!?!?!?
added
__________________
2013 gt - TBD
2004 mach1 - 12.31@110.17, 1.645 60' - SOLD
Fosters is offline   Reply With Quote
Old 02-01-2004, 07:44 PM   #7
Ralph Greene
Registered User
 
Ralph Greene's Avatar
 
Join Date: Mar 2003
Location: Longwood Fl
Posts: 3,724
We have .62 5th. Yes you are correct. At cruising we turn fewer RPM's with 4.30's, than previous 5 speed cars with 4.10's. From .67 to .62 is a 7.5% difference. From 4.10 to 4.30 is only a 5% difference.
__________________
Ralph Greene
SOLD
03 Mach 1 (Torch Red) 5 Speed Manual
Real Ford FR 500 18X9 Wheels
255X40X18 Michelin Tires
Steeda Sport Springs (isolators in)
Tokico HP Struts/Shocks
Steeda 4 bolt CC Plates
Poly Offset Steering Rack Bushings
Steeda TriAx Shifter
Magnaflow X/Cats
Bassani Catback with Removable Baffles
Ralph Greene is offline   Reply With Quote
Old 02-01-2004, 09:56 PM   #8
JeromeMach1
Registered User
 
Join Date: Aug 2003
Location: Simi Valley, CA
Posts: 1,383
Wooohoooo. Makes me feel even better about chosing the 4.30s. Thanks for the added info Ralph.

P.S. Ralph, your sig is getting pretty long there

Jerome
__________________
03 Mach1 5spd
BB/Stroker built by Eddie Rios Addiction Motorsports
P&P 03 Heads by Al P
Custom cams by NASVT
Nazty PSR
SAE 420rwhp
SAE 387rwt
1.56 60ft
11.44ET
122.1mph
1700 DA
JeromeMach1 is offline   Reply With Quote
Old 02-01-2004, 10:27 PM   #9
Steelhorse
Mach1,the legend lives on
 
Steelhorse's Avatar
 
Join Date: Nov 2003
Location: St. Charles. Mo
Posts: 665
Thanks for the info Fosters , i have been wondering if i would be regretting the 4:10's i bought in case the wife and i would take a highway trip in the 100 mile range which we do sometimes. The car is a weekend driver. Feel good about e'm now.

Ralph when you going to add a set of gears to that list?
__________________
03 Mach 1 - sold
07 Shelby GT
06 GT
00 F-150 4wd
Steelhorse is offline   Reply With Quote
Old 02-01-2004, 10:49 PM   #10
Ralph Greene
Registered User
 
Ralph Greene's Avatar
 
Join Date: Mar 2003
Location: Longwood Fl
Posts: 3,724
Ralph when you going to add a set of gears to that list? [/B][/QUOTE]

I'm not doing gears to this car. I changed rear gears 7 times on my 98 Cobra...and wound up with 4.10's. But it saw some track duty with over 500 RWHP on 15" BFG DR's. If doing again, that car would have stayed with 3.73's (which it had twice). Gears didn't really matter, car was traction limited.

I'm not drag racing this car, and think the stock 3.55's are almost perfect for all around use...with our 5 speeds (I might would prefer 3.73's for my use). If I had a 6 speed like was in the 2000R (2.97 first gear), (even if .62 6th same as our .62 5th) , I would like a little lower gear. Maybe a 3.90 or something for all around use.

Our Mach's make their power about 10% lower in the RPM range than previous 4V's, so 3.55's or 3.73's on our car feels about like 4.10's on previous 4V's, and you shifted them at higher RPM.

I'm not running race tires on this car, and no one has shown me gears make a car any faster for the way I drive this car, for my use. And even if they do make you a couple tenths faster on stock tires, that is not measureable for street use. And I like saving 5th for strictly highway cruising. I also like lazy 70-75 MPH cruising at a little over 2000. So stock 3.55's work for me.

If I were to get interested in drag racing this car with stock 5 speed, I would just jump to 4.30's, or maybe 4.56's, with a little taller than stock tire. Whatever tire/gear combo it takes to max out 4th at end of 1/4. But I will let you guys do all that stuff this time.
__________________
Ralph Greene
SOLD
03 Mach 1 (Torch Red) 5 Speed Manual
Real Ford FR 500 18X9 Wheels
255X40X18 Michelin Tires
Steeda Sport Springs (isolators in)
Tokico HP Struts/Shocks
Steeda 4 bolt CC Plates
Poly Offset Steering Rack Bushings
Steeda TriAx Shifter
Magnaflow X/Cats
Bassani Catback with Removable Baffles
Ralph Greene is offline   Reply With Quote
Old 08-14-2004, 03:44 AM   #11
MR Bulk
Guest
 
MR Bulk's Avatar
 
Join Date: Jul 2004
Location: Hawaii
Posts: 290
"Whatever tire/gear combo it takes to max out 4th at the end of 1/4."

What a wise and sage statement...
MR Bulk is offline   Reply With Quote
Old 08-15-2004, 04:13 PM   #12
mach1dsg
Cam only LS2 Powered
 
mach1dsg's Avatar
 
Join Date: Dec 2003
Location: Holland,OH
Posts: 1,463
Quote:
Originally posted by Ralph Greene

I'm not drag racing this car, and think the stock 3.55's are almost perfect for all around use...with our 5 speeds (I might would prefer 3.73's for my use). If I had a 6 speed like was in the 2000R (2.97 first gear), (even if .62 6th same as our .62 5th) , I would like a little lower gear. Maybe a 3.90 or something for all around use.
ralph, why do you think 3.73's would be better for all around use over 3.55's??, i know 4.10's or 4.30's would be the ticket for drag racing,but i haven't think about 3.73's as a replacement for the stock 3.55's until know. i know anything over 4.10s would improve acceleration in the 1/4 mile, but traction would be become an issue with street tires, specially with the ones that i was thinking to install (4.30s), i also know, dr's would cure the traction problem, but i drive 120miles every day, so i can't not afford to replace dr's every 2 months, plus i need to be able to drive in the rain.
__________________
2006 Impulse Blue Metallic GTO M6
12.15@114.09mph, 1.85 60'

2003 Mustang Mach 1 DSG 5 speed -SOLD-
13.43@104.3mph, 2.01 60'
mach1dsg is offline   Reply With Quote
Old 08-15-2004, 06:00 PM   #13
SS2001
Registered User
 
Join Date: Aug 2004
Location: Lithia Springs, GA
Posts: 110
I read somewhere that Mustangs are top speed limited, so top speed is really irrelevant. 139 or 149 mph, I can't remember which.
SS2001 is offline   Reply With Quote
Old 08-15-2004, 07:14 PM   #14
RotaryMagic
Registered User
 
Join Date: Feb 2004
Location: Houston, Texas
Posts: 988
No love for 3.73s.
RotaryMagic is offline   Reply With Quote
Old 08-16-2004, 02:59 AM   #15
loathe
SHAKEN, Not Stirred!
 
loathe's Avatar
 
Join Date: Feb 2004
Location: Pearland, TX
Posts: 1,408
Quote:
Originally posted by RotaryMagic
No love for 3.73s.
:LAUGH:
loathe is offline   Reply With Quote
Old 08-16-2004, 04:10 AM   #16
grimreefer
U.S. Merchant Marine
 
grimreefer's Avatar
 
Join Date: Feb 2004
Location: Titusville, FL... currently: San Diego
Posts: 2,438
Quote:
Originally posted by SS2001
I read somewhere that Mustangs are top speed limited, so top speed is really irrelevant. 139 or 149 mph, I can't remember which.
The Mach1 A/T is electronically speed limited in the 120+ mph range, the M/T @ 151 mph. (Doesn't mean they have to stay that way)
__________________
'08 BGM TBSS (3SS/2WD) - Bone Stock

Last edited by grimreefer; 08-16-2004 at 04:17 AM.
grimreefer is offline   Reply With Quote
Old 08-16-2004, 05:52 AM   #17
MR Bulk
Guest
 
MR Bulk's Avatar
 
Join Date: Jul 2004
Location: Hawaii
Posts: 290
...and gears will help you attain them faster...
MR Bulk is offline   Reply With Quote
Old 08-16-2004, 07:13 AM   #18
SS2001
Registered User
 
Join Date: Aug 2004
Location: Lithia Springs, GA
Posts: 110
Quote:
Originally posted by grimreefer
The Mach1 A/T is electronically speed limited in the 120+ mph range, the M/T @ 151 mph. (Doesn't mean they have to stay that way)
Wonder why the difference??
SS2001 is offline   Reply With Quote
Old 08-16-2004, 08:12 AM   #19
grimreefer
U.S. Merchant Marine
 
grimreefer's Avatar
 
Join Date: Feb 2004
Location: Titusville, FL... currently: San Diego
Posts: 2,438
Quote:
Originally posted by SS2001
Wonder why the difference??
Well, IIRC the auto redline is @ 5800 rpm and the manual is @ 6800 rpm. I don't know what the gear ratios are for the A/T but I'm pretty sure that would come into play too.

There are a few people here who can answer this much better than I can since I don't know much about the auto's... I'd like a good explanation for this too.
__________________
'08 BGM TBSS (3SS/2WD) - Bone Stock
grimreefer is offline   Reply With Quote
Old 08-16-2004, 12:17 PM   #20
BoulderMach
Registered User
 
Join Date: Apr 2004
Location: Boulder
Posts: 685
Good stuff!!

Would love to see those RPM's at 80 for the Mach's auto, as well as the top speed with each, but am uncertain how to figure that based on those links.

Got to think though that with the top speed being 120 with the 3.73's the 4.30's or 4.56's would have the car nearing or hitting it's top speed in the quarter.
BoulderMach is offline   Reply With Quote
Old 08-16-2004, 01:26 PM   #21
Fosters
LS1-stock
 
Fosters's Avatar
 
Join Date: Dec 2003
Location: Chandler, AZ
Posts: 1,550
Quote:
Originally posted by BoulderMach
Good stuff!!

Would love to see those RPM's at 80 for the Mach's auto, as well as the top speed with each, but am uncertain how to figure that based on those links.

Got to think though that with the top speed being 120 with the 3.73's the 4.30's or 4.56's would have the car nearing or hitting it's top speed in the quarter.
find the gear ratios for the tranny, plug them in, plug your rear end ratio and play with the speed...

i have to go to work or i'd look the ratios up for you...i'll do it when i get back
__________________
2013 gt - TBD
2004 mach1 - 12.31@110.17, 1.645 60' - SOLD
Fosters is offline   Reply With Quote
Old 08-17-2004, 08:05 AM   #22
grimreefer
U.S. Merchant Marine
 
grimreefer's Avatar
 
Join Date: Feb 2004
Location: Titusville, FL... currently: San Diego
Posts: 2,438
Got bored

Are the Mach1 4R70W ratios as follows???:
2.84
1.55
1.00
0.70 (OD)


Manual
.62 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2304 rpm
3.73 = 2421 rpm
4.10 = 2661 rpm
4.30 = 2791 rpm
4.56 = 2960 rpm

top speed w/ 3.55s, 5th gear @ 6798 rpm = 236 mph
top speed w/ 3.73s, 5th gear @ 6780 rpm = 224 mph
top speed w/ 4.10s, 5th gear @ 6787 rpm = 204 mph
top speed w/ 4.30s, 5th gear @ 6769 rpm = 194 mph
top speed w/ 4.56s, 5th gear @ 6771 rpm = 183 mph

Auto
.70 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2602 rpm
3.73 = 2733 rpm
4.10 = 3005 rpm
4.30 = 3151 rpm
4.56 = 3342 rpm

top speed w/ 3.55, @ 5789 rpm = 178 mph
top speed w/ 3.73, @ 5775 rpm = 169 mph
top speed w/ 4.10, @ 5784 rpm = 154 mph
top speed w/ 4.30, @ 5791 rpm = 147 mph
top speed w/ 4.56, @ 5765 rpm = 138 mph
__________________
'08 BGM TBSS (3SS/2WD) - Bone Stock

Last edited by grimreefer; 08-17-2004 at 09:48 AM.
grimreefer is offline   Reply With Quote
Old 01-08-2005, 12:19 AM   #23
YellowMenace
Registered User
 
YellowMenace's Avatar
 
Join Date: Nov 2003
Location: Schertz, TX
Posts: 2,639
Re: Gears - to answer the questions once and for all

The auto data would be more interesting in 3rd gear since we don't race (or even make full throttle runs) in OD.
__________________
Zinc yellow NMRA Factory Stock configuration Coyote 5.0 engine, FRPP Control Pack and a bunch of other stuff. Best ET in this configuration 10.693@123
YellowMenace is offline   Reply With Quote
Old 01-09-2005, 09:55 PM   #24
jonkolo
Registered User
 
Join Date: Apr 2004
Location: Allen Park, Michigan
Posts: 533
Re: Gears - to answer the questions once and for all

Quote:
Originally Posted by YellowMenace
The auto data would be more interesting in 3rd gear since we don't race (or even make full throttle runs) in OD.
I think that Ford set the speed limiter to 126 on the automatics to prevent a wide open throttle shift into overdrive. The shift with stock gears happens somewhere around 130MPH.

Why wouldn't you do a full throttle run in overdrive to get top speed? I bet it would be around 160+. I know you don't need overdrive on the drag strip.

I removed my speed limiter. I did have a chance to run to 135, but I let up on it around 125 and let it ease into overdrive. Once it shifted into overdrive I stomped it and it went from 125 to 135 so fast I couldn't believe it.
__________________
04 Screeming Yellow Auto: Best 1/4 mile time basically stock with auto transmission = 13.45 @ 104.14/ Best 0-60 MPH = 5.0 seconds


Stock Mach 1, only 7000 miles, K&N air filter, Yellow top Optima battery, Viper 791xv 2-way interactive alarm with remote start and nite-lite autolamp system, Ford automatic dimming rearview mirror with outside temp and compass display.
jonkolo is offline   Reply With Quote
Old 01-09-2005, 09:58 PM   #25
jonkolo
Registered User
 
Join Date: Apr 2004
Location: Allen Park, Michigan
Posts: 533
Re: Gears - to answer the questions once and for all

Quote:
Originally Posted by grimreefer
Got bored

Are the Mach1 4R70W ratios as follows???:
2.84
1.55
1.00
0.70 (OD)


Manual
.62 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2304 rpm
3.73 = 2421 rpm
4.10 = 2661 rpm
4.30 = 2791 rpm
4.56 = 2960 rpm

top speed w/ 3.55s, 5th gear @ 6798 rpm = 236 mph
top speed w/ 3.73s, 5th gear @ 6780 rpm = 224 mph
top speed w/ 4.10s, 5th gear @ 6787 rpm = 204 mph
top speed w/ 4.30s, 5th gear @ 6769 rpm = 194 mph
top speed w/ 4.56s, 5th gear @ 6771 rpm = 183 mph

Auto
.70 ratio, 80mph, at X.XX:1 rear gear ratio

3.55 = 2602 rpm
3.73 = 2733 rpm
4.10 = 3005 rpm
4.30 = 3151 rpm
4.56 = 3342 rpm

top speed w/ 3.55, @ 5789 rpm = 178 mph
top speed w/ 3.73, @ 5775 rpm = 169 mph
top speed w/ 4.10, @ 5784 rpm = 154 mph
top speed w/ 4.30, @ 5791 rpm = 147 mph
top speed w/ 4.56, @ 5765 rpm = 138 mph
Awesome information! I have been looking for this because I am considering a gear change for my automatic. BUT I like top speed.

The rev-limiter is set to 6250 on automatics, so that's where we need to calculate top speed. Can you re-calculate for us?

Actually, 5800RPM is ok for 1'st, 2'nd, 3'rd, if you let the trans shift automatically, but 4'th will go all the way to 6250RPM.
__________________
04 Screeming Yellow Auto: Best 1/4 mile time basically stock with auto transmission = 13.45 @ 104.14/ Best 0-60 MPH = 5.0 seconds


Stock Mach 1, only 7000 miles, K&N air filter, Yellow top Optima battery, Viper 791xv 2-way interactive alarm with remote start and nite-lite autolamp system, Ford automatic dimming rearview mirror with outside temp and compass display.
jonkolo is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:19 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
(c) 2002-2013 Mach1Registry.com

<