should I leave my 3.73 rear when vortech added?

90lxwhite

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#1

• Nov 29, 2012

• #1

Hey fellas I believe I'm going to get the vortech v3 6-8 lbs boost for the '95. Question is would the 3.73 gears work well with it or should I go something like 3.55 or 3.27??? I'm not all that excited with the 3.73's now as an n/a. 1st runs out way too fast and 5th feels like it needs to shift when on the hwy. Oh yeah it's a t-5 btw

 

ProKiller

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#2

• Nov 29, 2012

• #2

yes. you could downgrade but i've run 3.73s for years and think it works very well.

 

VibrantRedGT

"STANGNET'S PENGUIN SMACKER"

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#3

• Nov 29, 2012

• #3

I had 3:55's when running my Vortech S-Trim with 12psi. I think 3:73's are fine. You make the max boost at the highest RPM so the 3:73 will be fine for your application.

 

madspeed

Colonel Mustard

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#4

• Nov 29, 2012

• #4

3.55 a bit better but not worth changing

 

A

advent

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#5

• Dec 3, 2012

• #5

I'm not all that excited with the 3.73's now as an n/a. 1st runs out way too fast and 5th feels like it needs to shift when on the hwy.

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I feel your pain . With boost , go with 3.27.

 

Swarzkopf

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#6

• Dec 7, 2012

• #6

With as much low end as the 302 makes, 3.55s or lower (numerically) would probably be your best bet (provided you have stock heads/cam).

 

revhead347

Apparently my ex-husband made that mistake.

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#7

• Dec 8, 2012

• #7

It's more of a personal preference thing. I would put the Vortech in and see how you like it. If at that point you think you would be better off with a shorter gear, then I would make the change at that time.

Kurt

 

T

turbogt

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#8

• Dec 11, 2012

• #8

You guys are crazy.. I would want nothing less than 3.73's with the Vortech.. It's not a Turbo. I'm running 4.10's

 

revhead347

Apparently my ex-husband made that mistake.

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#9

• Dec 11, 2012

• #9

I used to hang out with this guy in high school who wasn't happy until he was in the 5s. He had a 5.12:1 at the time and was looking to go taller.

Kurt

 

madspeed

Colonel Mustard

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#10

• Dec 11, 2012

• #10

mustve never hit the hiway

 

T

turbogt

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#11

• Dec 11, 2012

• #11

madspeed said:

mustve never hit the hiway

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I actually HAVE a Vortech. You're right, I live my life a 1/4 mile at a time.


OP, if you go with a taller gear than 3.73, you will BOG between 1st and 2nd.

 

madspeed

Colonel Mustard

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#12

• Dec 12, 2012

• #12

meant that in response to revheads post

 

T

turbogt

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#13

• Dec 12, 2012

• #13

madspeed said:

meant that in response to revheads post

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lol.. well then...

 

revhead347

Apparently my ex-husband made that mistake.

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#14

• Dec 13, 2012

• #14

madspeed said:

meant that in response to revheads post

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Kind of funny that you mention it. I remember driving next to him on the highway on the way to the track in Palm Beach County. He must have stopped twice for gas, and the damn car was running at 4000+ rpms the whole way. I don't know how he even had the energy to make a pass after listening to that much noise for so long.

Kurt

 

T

turbogt

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#15

• Dec 15, 2012

• #15

revhead347 said:

Kind of funny that you mention it. I remember driving next to him on the highway on the way to the track in Palm Beach County. He must have stopped twice for gas, and the damn car was running at 4000+ rpms the whole way. I don't know how he even had the energy to make a pass after listening to that much noise for so long.

Kurt

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YUCK.. Pushrod Motors don't need that much gear.. Period.. 4.10's on the high side.. IMO 3.90's are PERFECT, and 3.73's are good. You definitely need rpm with the Vortech, and the shorter gears help tighten up the transmission ratio as well.

 

revhead347

Apparently my ex-husband made that mistake.

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#16

• Dec 16, 2012

• #16

Yeah, I don't understand it either. I don't much care for anything taller that a 3.55:1. It just puts the car up in the 2200rpm range on the highway which makes the drone even worse.

Kurt

 

Reactions: madspeed and 90lxwhite

T

turbogt

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#17

• Dec 16, 2012

• #17

revhead347 said:

Yeah, I don't understand it either. I don't much care for anything taller that a 3.55:1. It just puts the car up in the 2200rpm range on the highway which makes the drone even worse.

Kurt

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Drone? What's drone?

 

90lxwhite

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Dec 17, 2012

#18

• Dec 17, 2012

• #18

revhead347 said:

Yeah, I don't understand it either. I don't much care for anything taller that a 3.55:1. It just puts the car up in the 2200rpm range on the highway which makes the drone even worse.

Kurt

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I'm w this guy

 

YEAHLOH95

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#19

• Dec 22, 2012

• #19

leave the 3.73s thats what i have had and love them with the vortech

 

90lxwhite

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Dec 23, 2012

#20

• Dec 23, 2012

• #20

YEAHLOH95 said:

leave the 3.73s thats what i have had and love them with the vortech

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does it get into boost in 5th gear?