I have 4.10s but....

JTGrant

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Aug 2, 2005

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Oct 16, 2007

#21

• Oct 16, 2007

• #21

Since Motive is manufacturing the 4.30s for FRPP, is the Motive high performance series the same gear as the FRPP 4.30?

 

Five Oh Brian

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Jun 13, 2007

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Pacific Northwest

Oct 16, 2007

#22

• Oct 16, 2007

• #22

The 4.30's in my 03 Mach 1 made absolutely no noise (still don't) and were FRPP gears. I work at a Ford dealership, and the tech that did the install is awesome. Shimmed them correctly and the install was done right the first time. He's done a few gear swaps for me now. I think the installer makes a huge difference in the outcome of the swap.

 

JTGrant

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#23

• Oct 16, 2007

• #23

I was looking at the gear-to-rpm-to-mph chart that I have in excel format. (I can post it if anyone would like a copy) I need to rev to 6500-6600 rpm to acheive 60 mph in second gear with the current stock wheels and the Nitto 555s. I guess these gears are more for the Mach1s and the Cobras given that they are designed to rev higher. I really don't feel comfortable about about reving the car that high everytime I race it. If shifting around the stock redline I really done see how the 4.30 would be faster than the 4.10s (Correct me if I am wrong). Still not sure about future mods, it all depends on what the redesigned Mustang's look like and what powerplant they may have. So I am still not 100% sure about the future power level of me car. Just keeping it simple right know.

 

T

TGJ

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Mar 30, 2005

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Oct 16, 2007

#24

• Oct 16, 2007

• #24

JTGrant said:

I was looking at the gear-to-rpm-to-mph chart that I have in excel format. (I can post it if anyone would like a copy) I need to rev to 6500-6600 rpm to acheive 60 mph in second gear with the current stock wheels and the Nitto 555s. I guess these gears are more for the Mach1s and the Cobras given that they are designed to rev higher. I really don't feel comfortable about about reving the car that high everytime I race it. If shifting around the stock redline I really done see how the 4.30 would be faster than the 4.10s (Correct me if I am wrong). Still not sure about future mods, it all depends on what the redesigned Mustang's look like and what powerplant they may have. So I am still not 100% sure about the future power level of me car. Just keeping it simple right know.

Click to expand...

I would like a copy of your Excel file...

 

dbrufus1234

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Sep 10, 2006

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Oct 16, 2007

#25

• Oct 16, 2007

• #25

TGJ said:

I would like a copy of your Excel file...

Click to expand...

me too

 

DarkFireGT

Playing with my wife's really makes me want one.

10 Year Member

May 23, 2004

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East Moline, IL

Oct 16, 2007

#26

• Oct 16, 2007

• #26

Again, what RPM are you at when you go through the traps? I'm assuming with 4.10's your in 4th when you hit the traps, correct?

 

JTGrant

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Oct 16, 2007

#27

• Oct 16, 2007

• #27

When I get home I will post the file. The file maybe too large to attach. PM me your emails and I will send it that way or is there another way?

 

JTGrant

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Oct 16, 2007

#28

• Oct 16, 2007

• #28

DarkFireGT said:

Again, what RPM are you at when you go through the traps? I'm assuming with 4.10's your in 4th when you hit the traps, correct?

Click to expand...

I don't remember the RPM through the traps, it's been awhile since I have been to the quater mile. Since I moved back home after graduating, there is no longer a track here anymore. They are plaining a track around here very soon. My trap speed was between 105-106 with my current mods minus the driveshaft, UDP, new tires, and the Brenspeed/Bamachips tunes. I would have to look at the chart to estimate the RPM. Yes I would shift to 4th.

 

JTGrant

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Oct 16, 2007

#29

• Oct 16, 2007

• #29

Uable to attach xls files pm me if you would like a copy of the file.

 

kooldawg6

mine works really well and can take a fair amount

Aug 31, 2006

1,679

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Central VA

Oct 16, 2007

#30

• Oct 16, 2007

• #30

With the 27.2" tire I was crossing the line at around 5200 RPM in 4th. I had my shift points set for 6500 RPM.

 

JTGrant

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Oct 16, 2007

#31

• Oct 16, 2007

• #31

I would like to hear from people that have the 4.30 gears, it really doesn't seem that there are many people that have this ratio. Most of the N/A S197s have 4.10s. Also how many of you S197s guys shift around 6500?

 

DarkFireGT

Playing with my wife's really makes me want one.

10 Year Member

May 23, 2004

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East Moline, IL

Oct 16, 2007

#32

• Oct 16, 2007

• #32

Sounds like 4.30's would put you right at redline, if you have similar mods to Kooldawg.

 

kooldawg6

mine works really well and can take a fair amount

Aug 31, 2006

1,679

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Central VA

Oct 17, 2007

#33

• Oct 17, 2007

• #33

spyder7724 is running the 4.30s. I can't remember what size tire he runs, but it is quite tall. Perhaps PM him.

 

BREDn07

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Mar 30, 2007

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Fresno, Ca

Oct 17, 2007

#34

• Oct 17, 2007

• #34

i should have read this thread before i posted one in the talk section...

i'm assuming it's advisable to do a re-flash for 4.10's once installed and change the redline to about 6800...i'm running 285/35/18's...is that right!

 

DarkFireGT

Playing with my wife's really makes me want one.

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East Moline, IL

Oct 17, 2007

#35

• Oct 17, 2007

• #35

If Brenspeed did you tune, the default redline should be 6800. That's what both my cars were set at automatically.

 

BREDn07

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Oct 17, 2007

#36

• Oct 17, 2007

• #36

thank you dark...i believe it is at 6800 right now..i shift @ 6500..i should be fine.