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

Bad dyno run???

  • Thread starter Thread starter boxcarracer89
  • Start date Start date May 2, 2010
B

boxcarracer89

Member
Mar 26, 2009
153
0
16
I live in Roswell NM
May 2, 2010
#1
  • May 2, 2010
  • #1
Ok, I just got back frm the dyno earlier today and my hp is 255 annd torque was like 289? I have alot done to the car and I thought I should be putting out more!! I have an 347 Eagle short block, forged crank and pistions,Tfs heads 185cc, Holley systemax intake, trick flow stg 1 cam, 4.10 gears, T5 tranny, 32lb injectors, Saleen rear axle, MSD ignition and distributor, Griffin aluminuim radiator, Optima battery, A/C eliminator, 70mm throttle body, king cobra cluth, BBK longtube headers and x pipe, flow master exhaust 40series mufflers. We ran it about 5 times and they found out that my adj fuel pressure regulator was broken and open all the way to 80 lbs of fuel, would that affect it that much? Should I be putting out bigger numbers? I feel embarresed with those numbers after how much work Ive done to it!!!
 

87GT Drop Top

Member
May 1, 2009
500
3
17
South Florida
May 2, 2010
#2
  • May 2, 2010
  • #2
I don't know what's wrong, but I would think you are off by about 100HP.
 

Dino Dino Bambino

15 Year Member
Jun 13, 2007
1,670
87
79
Cyprus
May 2, 2010
#3
  • May 2, 2010
  • #3
boxcarracer89 said:
We ran it about 5 times and they found out that my adj fuel pressure regulator was broken and open all the way to 80 lbs of fuel, would that affect it that much? Should I be putting out bigger numbers?
Click to expand...

Definitely. An engine running pig rich will surely be down on power.
 

MY 85 GT

10 Year Member
Mar 7, 2008
1,852
208
104
New Jersey
May 2, 2010
#4
  • May 2, 2010
  • #4
Yeah running that rich you are losing alot of power...Your flooding the motor im suprised they ran it that many times..I would think you might get some fuel in the oil....running that rich...
 
B

boxcarracer89

Member
Mar 26, 2009
153
0
16
I live in Roswell NM
May 2, 2010
#5
  • May 2, 2010
  • #5
Ill be sure to fix that asap!! any certain fuel pressure reg I should go with?
 

MY 85 GT

10 Year Member
Mar 7, 2008
1,852
208
104
New Jersey
May 2, 2010
#6
  • May 2, 2010
  • #6
boxcarracer89 said:
Ill be sure to fix that asap!! any certain fuel pressure reg I should go with?
Click to expand...



I have an aeromotive Adjustabe FPR..i hear there good...I think there a few companies that make them now..Just look around im sure you can find them..
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
May 2, 2010
#7
  • May 2, 2010
  • #7
A 70mm TB is also on the small side for that motor. But yea, I imagine the numbers are a result of a bad tune.
 

bentley429isBAC

10 Year Member
Jul 23, 2009
922
188
84
CT
May 4, 2010
#8
  • May 4, 2010
  • #8
80 psi of fuel pressure and you decided to run the car like this?
 
B

boxcarracer89

Member
Mar 26, 2009
153
0
16
I live in Roswell NM
May 4, 2010
#9
  • May 4, 2010
  • #9
I didnt know the fuel pressure regulator was broken, they found out it was running 80lbs because of the dyno.
 

Beasty306GT

Active Member
Dec 19, 2002
671
4
28
Oxford,Mass
May 4, 2010
#10
  • May 4, 2010
  • #10
damn 80 psi way to much pressure u need half that
 
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