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» Northern California Ford Owners     » Automotive   » Tech Talk   » 3.73's or 3.55 on blown appl.

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Author Topic: 3.73's or 3.55 on blown appl.
sikleen
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hopefully you guys can give me some help... i gotta 2001 saleensc 281 and i was wonderin what is a better gear w/ a blower 355's or 373's maybe you guys can help me out!!!!

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(OFF BOTTLE)
RWHP: 400
FLY: 460
TORQUE: 420
FLY: 483

(ON BOTTLE=175 SHOT)
RWHP: 545
FLY: 627
TORQUE: 670
FLY: 771

Posts: 58 | From: roseville | Registered: Jan 2004  |  :
hidnn.o.s.
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3.55's for sure. That's stock for you right?

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R.I.P. Willie G. You are missed on this forum

Posts: 15950 | Registered: Apr 2002  |  :
sikleen
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no i have 3.27's... hella peeps r tellin me 3.73s..... you sure

--------------------
(OFF BOTTLE)
RWHP: 400
FLY: 460
TORQUE: 420
FLY: 483

(ON BOTTLE=175 SHOT)
RWHP: 545
FLY: 627
TORQUE: 670
FLY: 771

Posts: 58 | From: roseville | Registered: Jan 2004  |  :
hidnn.o.s.
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That's right, the AOD cars have 3.55's stock. The difference is not much going from 3.27's to 3.55's. That is why I would guess that people are telling you to go to 3.73's because it will be a bigger and more noticeable difference, but being that you are blown, I would highly suggest sticking with 3.55's at the most.

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R.I.P. Willie G. You are missed on this forum

Posts: 15950 | Registered: Apr 2002  |  :
sikleen
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what if i got drag radials

--------------------
(OFF BOTTLE)
RWHP: 400
FLY: 460
TORQUE: 420
FLY: 483

(ON BOTTLE=175 SHOT)
RWHP: 545
FLY: 627
TORQUE: 670
FLY: 771

Posts: 58 | From: roseville | Registered: Jan 2004  |  :
BlackDrop50
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You have a 4.6 with 3.27s, go with 3.73s MINIMUM or it's a waste of time and money. Even with the blower on there.
Posts: 1379 | From: 510 East Bay | Registered: Aug 2002  |  :
hidnn.o.s.
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quote:
Originally posted by BlackDrop50:
You have a 4.6 with 3.27s, go with 3.73s MINIMUM or it's a waste of time and money. Even with the blower on there.

You are saying that because it is not much of a difference right..... Going to 3.55's that is.

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R.I.P. Willie G. You are missed on this forum

Posts: 15950 | Registered: Apr 2002  |  :
hidnn.o.s.
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If you (I would not) want the 3.73's here you go: http://www.californiafords.com/ubb/ultimatebb.php?ubb=get_topic;f=5;t=020756;p=1#000000

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R.I.P. Willie G. You are missed on this forum

Posts: 15950 | Registered: Apr 2002  |  :
BlackDrop50
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quote:
Originally posted by hidnn.o.s.:
quote:
Originally posted by BlackDrop50:
You have a 4.6 with 3.27s, go with 3.73s MINIMUM or it's a waste of time and money. Even with the blower on there.

You are saying that because it is not much of a difference right..... Going to 3.55's that is.
Yes, and because 4.6s don't have much torque and need to rev up more. The only 4.6 I've ever been in was an '01 Saleen non supercharged and the damn thing needed some balls. Off the line power was worse than a stock 5.0.
Posts: 1379 | From: 510 East Bay | Registered: Aug 2002  |  :
Wolfie351
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If it has the Saleen supercharger, I'd stick with 3.27 Those things are all about low end torque and they run out of breath at high RPMs. 3.73 won't make the best use of your powerband. Also keep in mind that Saleen used 3.08 for their SC cars and then later switched to 3.27

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1985 Mustang GT: 351W, Griggs, Baer, etc etc

Posts: 1214 | From: South Bay | Registered: Dec 2001  |  :
QwiknSik
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just stay with what u got bush ur car is fast enough as it is also did u put in ur third tv yet
Posts: 62 | From: roseville | Registered: Jan 2003  |  :
SlowStockFox
Stock Fox
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quote:
Originally posted by pheonix:
just stay with what u got bush ur car is fast enough as it is also did u put in ur third tv yet

cause u sure know kevin. rickie buy some other things b4 that. since ur blown. i dont know all what u have....but ide pulley it, exhaust,intake,tune it...etc ide get 355s if i was u....being a vert i might go 373s. u wont feel the diff. that much.

my 0.02 [Big Grin]


know that 4.6s lack bottom end power and tq in general.

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i walk around....dont drink and drive

Posts: 2957 | From: cali | Registered: Mar 2002  |  :
BlackNGold
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I wouldn't change the gears, but if you did I'd go 3.73's...Changing the gear ratio will help keep your 4.6 in it's power band, but since your blown it will be worse for traction...

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-SLOWER TRAFFIC KEEP RIGHT-

Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001  |  :
losbadgts
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i would go with 3.55, since 03 and up cobra have them and they don't have problems with traction only weelhoop but u have a solid rear end u will be fine with 3.55's.

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Why pretent someone u are not, everyone else could see it.

Posts: 3625 | From: redwood city | Registered: Apr 2004  |  :
Blue97GT
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3.55's [burnout]
Posts: 0 | Registered: Mar 2004  |  :
sikleen
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see this is exactly why i asked.... so many diff. opinions....thanx though keep bringin them in i need to make my decision!!!! so 3.55s i wouldent really feel a diff but if i went with 3.73s it would be too much.... 03 cobras come with 3.55 because there rev happy... i gotta 2 vavle thats why i dunno if 73's will be too much

--------------------
(OFF BOTTLE)
RWHP: 400
FLY: 460
TORQUE: 420
FLY: 483

(ON BOTTLE=175 SHOT)
RWHP: 545
FLY: 627
TORQUE: 670
FLY: 771

Posts: 58 | From: roseville | Registered: Jan 2004  |  :
SlowStockFox
Stock Fox
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rick, try to find another sallen with gears.... or go test drive one with a gear option...look at door tags{find out witch is witch} might help ya.


i think root style blowers give bottom range power also...ide do 355s but go with what YOU want

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i walk around....dont drink and drive

Posts: 2957 | From: cali | Registered: Mar 2002  |  :
seabiscuit
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ricky...go with the 73's, otherwise you still won't be able to beat the GT
Posts: 36 | From: fair oaks | Registered: Aug 2004  |  :
Stangs R Us
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i would go with the 3.55s it will drop a tenth or two in the quarter mile , but dont go 3.73s those are to low unless u have a 6sp
Posts: 3100 | From: sacramento | Registered: Aug 2005  |  :
getjobdone
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go with 3.73s or go with nothing. 3.55s would be such a small diff and would not be worth the $450 it costs you.
-chris

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91 notch ^ blown h/c/i

Posts: 677 | From: east bay,ca | Registered: Jul 2004  |  :
QwiknSik
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what did u end up geting
[burnout]

Posts: 62 | From: roseville | Registered: Jan 2003  |  :
THE King Cobra
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get 4.10's... I had 3.73's before I got my blower,....but since I can pull my cars RPM limit alot higher then before, the 4.10's are way way better!!

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RPM Racing Team
-96 Cobra. HCI MOTORSPORTS block
-More cops in the family = more write-offs
508 RWHP @10.0lbs @6100 RPM..wait till I hit 8K RPM's

Posts: 315 | From: Bay Area, CA | Registered: Oct 2002  |  :
sikleen
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im leenin to 73's....thats wut most peeps r tellin me...but its close

--------------------
(OFF BOTTLE)
RWHP: 400
FLY: 460
TORQUE: 420
FLY: 483

(ON BOTTLE=175 SHOT)
RWHP: 545
FLY: 627
TORQUE: 670
FLY: 771

Posts: 58 | From: roseville | Registered: Jan 2004  |  :
Wildfire532FB
CAFords OG
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4.10s! We're taking 3.73's out of my dad's Cobra and installing 4.10s.

[ September 05, 2004, 08:52 AM: Message edited by: Cobra5.0JEEP ]

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./_ _ _ ___ __\
(]]]_ _ o _ _[[[)
|\_o_ __ __o_/|
|__|..........|__|
68 Fastback
84 CJ7
94 HMMWV
95 GT
03 F350
17 Fusion Hybrid

Posts: 17578 | From: 530 | Registered: Jun 2002  |  :
THE King Cobra
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another vote for 4.10's [Big Grin] [Razz]

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RPM Racing Team
-96 Cobra. HCI MOTORSPORTS block
-More cops in the family = more write-offs
508 RWHP @10.0lbs @6100 RPM..wait till I hit 8K RPM's

Posts: 315 | From: Bay Area, CA | Registered: Oct 2002  |  :


 
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