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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

more top end?

  • Thread starter Thread starter ninety1gt
  • Start date Start date Feb 19, 2006

ninety1gt

New Member
Aug 27, 2005
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san antonio
Feb 19, 2006
#1
  • Feb 19, 2006
  • #1
what can i do to get more top end with out doing heads and cam?
 
I

IntenseBlue

Member
Jul 10, 2005
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Feb 19, 2006
#2
  • Feb 19, 2006
  • #2
A blower or some spray.
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
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48
DFW
Feb 19, 2006
#3
  • Feb 19, 2006
  • #3
pull the timing cover and retard the cam 4 degrees.
 

ninety1gt

New Member
Aug 27, 2005
162
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0
san antonio
Feb 19, 2006
#4
  • Feb 19, 2006
  • #4
seijirou said:
pull the timing cover and retard the cam 4 degrees.
Click to expand...
does this take away from low end power??




since i dont have money for heads and cam. do yall think some 1.7 rr help out?
 
T

Topdowncruise

New Member
Apr 7, 2005
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Canada
Feb 19, 2006
#5
  • Feb 19, 2006
  • #5
Not much since your heads/intake probably don't have the breathing to take advantage of the additional lift the 1.7's would give you.
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
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DFW
Feb 19, 2006
#6
  • Feb 19, 2006
  • #6
retarding the cam and/or going with 1.7 rockers will give you more top end at the sacrifice of bottom end.
That's just what happens when you open up the maximum breathing capabilities of a motor.
Power adders for the most part give you more power everywhere.
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Feb 19, 2006
#7
  • Feb 19, 2006
  • #7
search ebay for used GT40 or even GT40p heads , and cam and new timing set doesnt cost that much ........trust me if you can find some heads for 300 - 400 bucks and then spend 200 on cam and timing set , once its on the car you will wonder why in the hell you waited so long to splurge and spend a few hundred on your car .......on a good day your car might put down 220 rwhp , dont seem like a lot but with used GT40s and cam 255-265 rwhp is a big big difference ......its almost as good as a 75 dry shot on a stock car ....but its there all the time
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
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69
B.C. Canada
Feb 20, 2006
#8
  • Feb 20, 2006
  • #8
i was going to say blower. but if you don't have cash for heads then i doubt you have it for a blower. You could go to a solid roller cam and valve springs to match so that you don't have valve float at higher rpm's.
 
S

seijirou

Founding Member
Aug 15, 2002
2,417
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DFW
Feb 20, 2006
#9
  • Feb 20, 2006
  • #9
I was just reading your sig.
What is a tps enhancer?
 

ninety1gt

New Member
Aug 27, 2005
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san antonio
Feb 20, 2006
#10
  • Feb 20, 2006
  • #10
seijirou said:
I was just reading your sig.
What is a tps enhancer?
Click to expand...


its made by caspers electronics, TPS voltage at Wide-Open Throttle (WOT) is a function of power enrichment (PE). If the voltage is below a certain point at WOT, the ECM will reduce the level of power enrichment and the engine will not perform to its potential. This device is completely transparent until 70% TPS, then it takes over and assures maximum TPS voltage for 100% Power Enrichment (PE) when you need it the most. The TPS TEC also corrects for low sensor voltage and "dead spots".
 
S

seijirou

Founding Member
Aug 15, 2002
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Feb 20, 2006
#11
  • Feb 20, 2006
  • #11
Taking care of low voltage and dead spots is neat.
 

ninety1gt

New Member
Aug 27, 2005
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san antonio
Feb 20, 2006
#12
  • Feb 20, 2006
  • #12
yea the car felt more responsive
 
M

Mark89coupe

Member
Apr 5, 2005
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Feb 20, 2006
#13
  • Feb 20, 2006
  • #13
Would'nt changing the valve springs help the top end(valve float)?
I had a few people tell me that the stock springs are shot after 40k miles. Is this true?
 
I

IntenseBlue

Member
Jul 10, 2005
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Feb 20, 2006
#14
  • Feb 20, 2006
  • #14
I've heard that they take a **** quickly, too.
 
M

Mark89coupe

Member
Apr 5, 2005
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Feb 20, 2006
#15
  • Feb 20, 2006
  • #15
With the mileage I have on my car the power falls off at 4k rpms.
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Feb 20, 2006
#16
  • Feb 20, 2006
  • #16
without proper valve springs you could be loosing a lot of top end power. always a good idea to have the valve springs that match the cam installed.
 
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