Roush Disappointed with 3:73 gears (more)

sy1172 · Oct 17, 2005

I have an '04 SC281 and went to 3:73 gears (Ford Motorsports) from the stock 3:27. Yes, the car feels a bit quicker but only a bit. I installed a Bassani X pipe with free-flow cats a the same time so I don't know if it's the gears or exhaust I feel. I was expecting much more having installed gears on my vette in the past. Should it feel really different or only marginally so? I'm thinking I should have gone with 4:10's but opted not to based on the feedback on this forum......most said no with a supercharger.

Thoughts thanks,!

ag lightning · Oct 17, 2005

You might need to drive a little more aggressive. You should have def. felt a bigger kick in the pants with the 3.73's. If you still don't feel it, don't wear boxers when you drive

Mstng2 · Oct 17, 2005

Hmmm yours has standard trans I guess? I love the 373's with my auto trans. Any more gear than this first gear would be useless. Sometimes first goes by so quickly you dont realize the gains you have gotten. lol If you drive alot on the freeway or travel I think you would hate the 4:10's

01Saleen-465 · Oct 17, 2005

I went w/3.73's in my car also and it wasen't a huge difference like I was expecting.

00-Saleen · Oct 17, 2005

I felt a huge difference With just the gears alone, Now the Pulley, CAI, TB etc and the car hits 100 In no time.

marcus95 · Oct 17, 2005

YOu usually feel a good difference especially coming from 3.27's.

Are you sure you got 3.73's? I remember the last time I was down at Chicane and they were getting ready to install Ford Motorsport 3.55's in a car and 3.73's were in the box that said 3.55's on the ring and pinion set. ??? The tech caught it. That would have sucked.

S351R"Animal" · Oct 17, 2005

With the swap you are now having to shift earlier and 1st gear is probably very short. Gear change doesn't always help on a blown car. I just took the 4:10 out of mine and installed the 3:55 back in it. It didn't change that much

GitDat · Oct 18, 2005

I went from 3.08's to 3.55's. Definitely one of my favorite mods

00-Saleen · Oct 18, 2005

Yea GitDat you dont need 3:73's with all that God Damn Hp u have.

GitDat · Oct 18, 2005

00-Saleen said:
Yea GitDat you dont need 3:73's with all that God Damn Hp u have.

Haha. Getting my new chip tomorrow. I'm hoping for 460rwhp/450rwtq with the A/F all nice and smoothed out

00-Saleen · Oct 19, 2005

Youve got Balls man Lol!

marcus95 · Oct 19, 2005

I'll say. Don't rip on it too hard over 5400 rpm before your new tune, your fuel is going away quick.

GitDat · Oct 19, 2005

marcus95 said:
I'll say. Don't rip on it too hard over 5400 rpm before your new tune, your fuel is going away quick.

Nah, that's right where I want it to be all the way across Like where I was with the 10psi pulley.

sal07b · Oct 19, 2005

I put 4.10's in my car at the same time I had the motor done, so it's hard for me to tell what difference the gears made specifically. I know it runs a lot better, then again it should with 110 more rwhp! Mine isn't s/c'd but if I had it to do over again, I probably would go with the 3.73's. First gear is really useless, albeit the transition from first to second in a power shift is pretty fun...

marcus95 · Oct 19, 2005

GitDat said:
Nah, that's right where I want it to be all the way across Like where I was with the 10psi pulley.

Yah,

Your run you posted here, the one back in May looks great. I'm talking about the one your posted earlier that was done on the 6th of this month.

fallstar01 · Oct 19, 2005

sy1172 said:
I have an '04 SC281 and went to 3:73 gears (Ford Motorsports) from the stock 3:27. Yes, the car feels a bit quicker but only a bit. I installed a Bassani X pipe with free-flow cats a the same time so I don't know if it's the gears or exhaust I feel. I was expecting much more having installed gears on my vette in the past. Should it feel really different or only marginally so? I'm thinking I should have gone with 4:10's but opted not to based on the feedback on this forum......most said no with a supercharger.

Thoughts thanks,!

I'm thinking 4.10s is the way to go based on most people whose cars are sub 400rwhp. I know a guy with a 420rwhp centrifugal SC that went to 3.73s from 4.10s and decided to go back to 4.10s because the 3.73s, in his opinion, felt like stock.

road rage · Oct 29, 2005

I like the 373's, perfect for everyday driving

jasonh_86 · Oct 30, 2005

i like my 3.73's.. but then again, i've never felt 4.10's and i'm not blown

2000xp8 · Oct 30, 2005

I've driven a handful of different geared similar mustangs, and when you are talking about 1 ratio in difference generally it can't be felt.

As far as the original poster goes, if you don't drive hard you can't tell, and if you don't beat on it early you'll get used to it without even knowing it.
The difference shows up at the track though, without a doubt.

marcus95 · Oct 31, 2005

2000xp8 said:
I've driven a handful of different geared similar mustangs, and when you are talking about 1 ratio in difference generally it can't be felt.

As far as the original poster goes, if you don't drive hard you can't tell, and if you don't beat on it early you'll get used to it without even knowing it.
The difference shows up at the track though, without a doubt.

Right.

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