2003-04 Mach 1 Registry Owners Club

2003-04 Mach 1 Registry Owners Club (http://www.mach1registry.org/forums/index.php)
-   Engine & Drivetrain (Including trans & rear axles) (http://www.mach1registry.org/forums/forumdisplay.php?f=64)
-   -   4.30's or 4.10 (http://www.mach1registry.org/forums/showthread.php?t=35047)

playtime_04 05-23-2005 11:28 PM

4.30's or 4.10
 
I'm tring to decide between the 4.30 gears and the 4.10 gears..could anyone help me out on this and tell my why you think one is better! :yes: :rolleyes:

GaPonyFarm 05-24-2005 12:01 AM

Re: 4.30's or 4.10
 
The choice doesn't work that way... Let us know how you want to use the car and we can then give our recomendations...

MattN03 05-24-2005 12:05 AM

Re: 4.30's or 4.10
 
If you do a search, there are quite a few threads on 4:10 vs 4:30 gear selection/use.

SSmith440 05-24-2005 12:42 AM

Re: 4.30's or 4.10
 
are you a stick or an auto mach1?

Fosters 05-24-2005 01:45 AM

Re: 4.30's or 4.10
 
most of the stick guys i've heard that went w/ 4.10s wished they went w/ 4.30s

ShakeMe 05-24-2005 01:50 AM

Re: 4.30's or 4.10
 
Quote:

Originally Posted by Fosters
most of the stick guys i've heard that went w/ 4.10s wished they went w/ 4.30s

I'm one of those but, I have since made that wish come true.

If you are going to keep the car NA(or a little spray) then go with the 4.30s. If boosting is in the future then 4.10s.

Orange whip 04 05-24-2005 01:26 PM

Re: 4.30's or 4.10
 
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

MattN03 05-24-2005 01:29 PM

Re: 4.30's or 4.10
 
Thanks for the transmission ratio's Orange Whip! I've been looking all over the Registry for a thread containing that info.

EDIT: Just noticed you didn't list all the ratios for a 3650. Could you post those ratios for 1-4th gear in a 3650 if you have it? Thanks! :yeh:

Orange whip 04 05-24-2005 01:36 PM

Re: 4.30's or 4.10
 
Here you go

Gear Type 5 Speed Manual 3650 trans
Final Drive 3.55:1
1st Gear Ratio 3.38:1
2nd Gear Ratio 2.00:1
3rd Gear Ratio 1.32:1
4th Gear Ratio 1.00:1
5th Gear Ratio 0.62:1

blazinsteed 05-24-2005 01:42 PM

Re: 4.30's or 4.10
 
great info man this ones getting stickied.

Good job

playtime_04 05-24-2005 05:17 PM

Re: 4.30's or 4.10
 
all im gonna do to the mach is --- loudmouth 1, K&N intake, and a power programer! Now give me what gears you think i should go with!!?!?

Orange whip 04 05-24-2005 06:37 PM

Re: 4.30's or 4.10
 
Quote:

Originally Posted by playtime_04
all im gonna do to the mach is --- loudmouth 1, K&N intake, and a power programer! Now give me what gears you think i should go with!!?!?

It really depends on what you want to do with your mach. If your just going to run around town and drag ocasionaly i would say 4.10. But perhaps you are more into drag racing and want to express the full potential of a 1/4 mile than your 4.30's are ideal. That doesnt mean that you cant drive 4.30's around town. They do just fine in city driving as well as highway speeds. Enough that they stay below 3000 rpm at 80 mph. 4.30's work the best with the 4 valve and stock transmission gearing. Our engines breath at the higher rpm scale and pulls harder during that range. That is what makes the 4 valve so special. You might loose a little top end because of the taller gear, but it more than makes up for it out of the hole.

Ralph Greene 05-25-2005 09:13 AM

Re: 4.30's or 4.10
 
If I were going to seriously drag race my Mach, and still wanted 4.10's for street use....I would get 4.30's and some street wheels and tires about 5% more diameter than stock effectively giving me 4.10's for street use (4.30's 5% lower than 4.10's), and then correct speedo for 4.10's. Then use stock diameter race tires giving me 4.30's at the strip.

But with our .62 5th, if you like to drag race, 4.30's are not a problem for street use like in the past when OD gears were more in the .67 (T 45) and .68 (3550 and T 5).

OrgMach1PSL 05-31-2005 10:31 PM

Re: 4.30's or 4.10
 
I have to give 2 thumbs up to the 4.10 gears. I just had them installed last week and what a difference. :gears: To me, my Mach feels lighter and undoubtedly quicker. My biggest concern was the gas mileage, but this is not a problem @ all. I drive 100 miles a day and can usually get 285 miles out of a tank. I’ve been getting 275 since this install, but I've also been much heavier on the pedal. :10: IMHO the 4.10 are the best balance for a street car.

Tom

TheBlkMach1 05-31-2005 10:41 PM

Re: 4.30's or 4.10
 
Quote:

Originally Posted by playtime_04
all im gonna do to the mach is --- loudmouth 1, K&N intake, and a power programer! Now give me what gears you think i should go with!!?!?

If this is your DD, then I would go with 4.10's. I have 4.10's, but probably would have went with 4.30's if I was gonna stay N/A. As a second car, 4.30's would be good. :yeh:

machwizzle 06-19-2005 04:09 PM

Re: 4.30's or 4.10
 
This question has big a really big hurdle I haven't quite jumped yet. My buddy around town has 4.30's and loves them at the track, but come to highway draggin I always hear him talkin about.....

"waiting for someone to slow down so he could get into 3rd gear"

I don't wanna have to wait for someone to slow down so I can get in a good gear to rape someone. I wanna be able to punch it and go.

You think 4.10's then??

CMcCarthy 06-20-2005 11:02 AM

Re: 4.30's or 4.10
 
I had both in my mach, and 4.30s are my preference. There is 100rpm difference in cruise RPM, big deal. As for the highway deal, its more of the same.... there would only be a couple hundred rpm max difference in third gear, so I dont see the argument.

Angus66 06-20-2005 11:25 AM

Re: 4.30's or 4.10
 
4.30's all the way...

... maybe even 4.56's if you're serious about drag-racing. :smokin:

67bird 08-11-2005 01:22 PM

Re: 4.30's or 4.10
 
My car only picked up a few hundredths with 4.10's. I'd go 4.30's or 4.56's if I were doing it again.

Lee

darkshadow mach 08-30-2005 11:22 PM

Re: 4.30's or 4.10
 
so what are the rpms like for city driving (35-50) with the 4.10's? 4.30's?

CMcCarthy 08-31-2005 06:50 AM

Re: 4.30's or 4.10
 
You can use 4th and 5th around town without lugging the motor when you have 4.30s, so cruise rpm is still very low.

Also, you're unlikely to see any change at all in your in-town gas mileage with the gear swap. I didn't.

Burnik 09-12-2005 03:55 AM

Re: 4.30's or 4.10
 
Where the cheapest place to but 4.30's. Buying it soon need the info

machburger 09-12-2005 07:34 AM

Re: 4.30's or 4.10
 
The cheapest I've seen lately. Mustang Tuning

VoodooMACH 09-12-2005 11:26 AM

Re: 4.30's or 4.10
 
4.10s and 4.30s suck for roll racing(unless its 1st gear 10mph stuff), if that's all you're interested in then keep the 3.55s.

Burnik 09-12-2005 07:59 PM

Re: 4.30's or 4.10
 
Where to buy the cheapest FR 4.30's? thanks


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