3.73 FI streetabillity

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07-18-2006, 09:51 PM

#11

armycook1981

2nd Gear Member

Join Date: Apr 2006

Location:

Posts: 410

RE: 3.73 FI streetabillity

opps i thought you had them .. then where you considering them... who else with fi here has gears

07-18-2006, 09:56 PM

#12

onefastv6

3rd Gear Member

Join Date: Jul 2005

Location: san diego

Posts: 801

RE: 3.73 FI streetabillity

Quote:

ORIGINAL: flapjack

Quote:

ORIGINAL: armycook1981

rygen, werent you considering going back to stock 3.31 do to the rpm rANGE AND BOOST? JUST CURIOUS BECAUSE i got an lsd and woudnering if i should switch to 3.7's flaps running them your running them and justis running them in his vortech i believe. I was just told by procharger, powerhouse and a few other companies keep the stock ones .

I've got the stock 3.31s....

Quote:

procharger, powerhouse and a few other companies keep the stock ones .

whats your rpm tach read when you go through the traps? (if youve gone to the track)

07-20-2006, 03:03 AM

#13

flapjack

I ♥ Acer

Join Date: Mar 2005

Location: Boston, MA

Posts: 614

RE: 3.73 FI streetabillity

Quote:

ORIGINAL: armycook1981

opps i thought you had them .. then where you considering them... who else with fi here has gears

I had considered it... I do like shifiting into 3rd at 60+ mph, though. I worry that the 3.73s will affect the gas mileage too much as well.

07-20-2006, 09:05 PM

#14

armycook1981

2nd Gear Member

Join Date: Apr 2006

Location:

Posts: 410

RE: 3.73 FI streetabillity

i floor mine so much the mpg went out the window along time ago.. i avg 13 mpg this past weekend while in houston with the other stangers.. i Used 1 whole tank in one day..WOW that was fun lol

07-20-2006, 09:09 PM

#15

rygenstormlocke

6th Gear Member

Join Date: Jul 2005

Posts: 5,172

RE: 3.73 FI streetabillity

Quote:

ORIGINAL: armycook1981

opps i thought you had them .. then where you considering them... who else with fi here has gears

Scrming has 4.10's on his Vortech.

07-21-2006, 11:38 AM

#16

996r916sps

1st Gear Member

Join Date: Nov 2005

Posts: 140

RE: 3.73 FI streetabillity

Depends on how much highway driving you do, and what speed you travel. 3.73's are nice, but my 2006 is my 9th Mustang. I have added 3.73's multiple times, and it's worth jumping to the 4.10's. I run 3000rpm at 80mph or 75mph at 2800rpm on the highway. If you don't run too much on the highway, I would go to 4.10's and it will help if you decide to change wheel/tire sizes. Most 20" rims have a 28" diameter, which lowers the overall ratio. As long as you do your upfront homework, I'm sure you will be happy.

Hope this helps!