Personally, I don't have them installed......Yet. I think they are worth it. They should make you around .3 quicker in the quarter.

 

If only someone who has it confirmed it!!!!!

I would be happy and probably finally started modding focus.
My thing is - I want to reach low 15 high 14s with NA focus In $2000 price limit.

 

If you NEVER plan to go FI it is a good thing to do for playing on the track

Tom

 

What if I decide to go with JRSC later on? Would id be too bad?

 

I have the 4.06final drive and I think it helped out a good bit......and gas mileage didn't suffer from it either......I never ran in the quarter mile, but I could definitely tell the acceleration was there : )

 

i just bought a kogbox tranny which comes with the 4.06 gears, ive never riddin in a car with them but from what i hear they are great...like the mcnews shop car has them and is hittin a 14 flat with fr head crower IIs quafie and 4.06 gears

 

I have a the pair sitting in my basement waiting to go on, usually good for .3 in the quarter with the Focus

 

I have a the pair sitting in my basement waiting to go on, usually good for .3 in the quarter with the Focus

hmm wonder where you got those from.......... lol

 

I have the 4.06final drive and I think it helped out a good bit......and gas mileage didn't suffer from it either......I never ran in the quarter mile, but I could definitely tell the acceleration was there : )

they don't have crower 2's they have the cat2's.......

 

hmm wonder where you got those from.......... lol

[paranoid]

 

they don't have crower 2's they have the cat2's.......

my bad, same difference man

 

ehhh not really lol......not tryin to sound like an ass....but the crower2's don't put out as much torque as the cat2's...........maybe the crower 2's have a tad more topend tho.......

 

keep this on topic, this isn't a cam discussion

 

c'mon guys! remember the topic - GEARS

 

If you NEVER plan to go FI it is a good thing to do for playing on the track

Tom

Why is it bad if you go FI? The gears too short?

 

I think so.... But on the other hand, i think that if you run little boost - it will actually improve

 

don;t forget to get a lsd when putting them in or you will have alot pegleg burn outs

 

if your going to pay a grease monkey to rip apart your tranny, you might as well wait until you can afford to upgrade some more stuff such as clutch, flywheel, differential, and of course (trying to stay on subject) the gears. a buddy of mine had just the gears installed and they got him for around 600 just for the install. he says its a good mod and he can feel the difference in acceleration but its cost was too high for what it did.

 

3.14 is a better gear ratio for f/i, i belelive marcy motorsports sells them

 

yeah.....FI it would be better if you stayed w/your stock ratio.......but if you just plan to run all motor then I would stay w/the 4.06

but also, to save labor time, just like the others said, it would be wise to put in a lsd, new clutch, and a flywheel and u'll be a happy camper : )

 

Marcy sells a 3.41 gearset...but I'd think 3.41 would be better suited for aggressive FI.

I had the 4.06 gears installed along with a CM stage 4, aluminum flywheel and a Quaife differential. The car is a completely different animal with the shorter gears, it gets up and goes a lot faster. I haven't noticed much of a drop in gas mileage, if anything it varies more when I'm flogging on the gas.

I recall Tom having said in another thread that if you plan on going above 250 WHP that the gearing would be too short...I'm sure the stock ratio would be better for a mild to aggressive FI car.

And like everyone is saying...wait until you can have all four done at once...that's what I did, and I only had to pay once for the transmission to come out, and Tom only charged me for the gear and differential install (the clutch and flywheel were put in for the cost of the parts.)

 

thats cool, i believe cfm have 4.06 gears in there supercharged 12 second vortech, its just because of the insane torque that come with turbos where your gonna be mesed up with all the shifting involved with a turbo+4.06 gears

 

There is a set of 4.50 gears for you road course junkies available as well

 

really?? where are they located out...thats short as hell

 

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