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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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polymer power box w this gear and cam?

  • Thread starter Thread starter 90lxwhite
  • Start date Start date Jan 13, 2013

90lxwhite

I'm kind of a She-Man
5 Year Member
Aug 25, 2011
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Between the Red and Rio
Jan 13, 2013
#1
  • Jan 13, 2013
  • #1
Would the comp polymer box be ok with ported ho lower and 3.73 gear and a cam with .512 lift on intake and exhust w 281 duration or will it lose way to much low end for a street car?
 

gearheadboy

15 Year Member
Jan 15, 2003
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Greencastle Pa
Jan 13, 2013
#2
  • Jan 13, 2013
  • #2
It is rated for 2,000-6,000 rpm with a stock lower. I haven't seen one of those for years. I would think it would kill the low end especially with the cam you have. Maybe someone here has run one?
 

ratio411

Founding Member
Apr 21, 2002
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Pensacola FL
Jan 13, 2013
#3
  • Jan 13, 2013
  • #3
My son runs a Cartech box on GT 40 lower, and he was surprised at how little low end was lost (I wasn't, I am a firm believer in letting a short stroke engine spin up.), and how much throttle response was gained. That thing revs QUICK now, since it doesn't have to get a ton of air moving between the throttle blade and individual runners. (The reason SN95s have lesser throttle response.)

He has a stock cam and heads, with 4.10 gears, T5, and Explorer TB...
 

Rick 91GT

Mustang Master
Nov 29, 1999
9,692
95
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PA
Jan 14, 2013
#4
  • Jan 14, 2013
  • #4
What's the rest of the specs @ .050 on the cam?
 

vristang

15 Year Member
Mar 31, 2005
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Seattle
Jan 14, 2013
#5
  • Jan 14, 2013
  • #5
ratio411 said:
My son runs a Cartech box on GT 40 lower, and he was surprised at how little low end was lost (I wasn't, I am a firm believer in letting a short stroke engine spin up.), and how much throttle response was gained. That thing revs QUICK now, since it doesn't have to get a ton of air moving between the throttle blade and individual runners. (The reason SN95s have lesser throttle response.)

He has a stock cam and heads, with 4.10 gears, T5, and Explorer TB...
Click to expand...
I too was surprised when I ran a box upper on a cobra lower... stock cam, and 2.73 gears... and the box upper was still better.
 
Reactions: ratio411

90lxwhite

I'm kind of a She-Man
5 Year Member
Aug 25, 2011
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Between the Red and Rio
Jan 14, 2013
#6
  • Jan 14, 2013
  • #6
Rick 91GT said:
What's the rest of the specs @ .050 on the cam?
Click to expand...
220 in 220 ex, this is on a 95 gt btw and I believe I'm fixing to send tmoss the lower to port
 

90lxwhite

I'm kind of a She-Man
5 Year Member
Aug 25, 2011
3,310
374
134
Between the Red and Rio
Jan 14, 2013
#7
  • Jan 14, 2013
  • #7
Heck, never mind I guess, I can't even find one
 

vristang

15 Year Member
Mar 31, 2005
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Seattle
Jan 14, 2013
#8
  • Jan 14, 2013
  • #8
90lxwhite said:
Heck, never mind I guess, I can't even find one
Click to expand...
Keep looking... with your gears, you will be happy with it...
 
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