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is it atually 260hp

  • Thread starter Thread starter stanford20
  • Start date Start date Jun 24, 2004
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stanford20

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Dec 16, 2003
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elkmont
Jun 24, 2004
#1
  • Jun 24, 2004
  • #1
i have seen on here were people have got plenty of mods such as full exhaust and maybe some intake mods and have dynoed and only be around 245 -260. i thought the newer stangs were rated at 260hp. can anybody explain?
 
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98GTSteve

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Nov 8, 2001
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Jun 24, 2004
#2
  • Jun 24, 2004
  • #2
260hp is at the motor.... a stock mustang usually dynos ~230 rwhp. If they are making 245-260hp at the wheels then they are actually making 15-20% more at the motor... Factory HP is not rated at the rear wheel.
 

stallion98gt

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May 12, 2003
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Jun 24, 2004
#3
  • Jun 24, 2004
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ditto
 

neoclasiccl

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AirWolf87

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Mar 14, 2004
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Jun 24, 2004
#5
  • Jun 24, 2004
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werent 96 mustangs rated at 225 at the crank?? Oh man imagine what im pulling at the wheels? dont even wanna think about it
 

gruntman31

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Jun 24, 2004
#6
  • Jun 24, 2004
  • #6
AirWolf87 said:
werent 96 mustangs rated at 225 at the crank?? Oh man imagine what im pulling at the wheels? dont even wanna think about it
Click to expand...


My 97 makes good power. More than most bolt on GT's with ported heads/cams.
 

AirWolf87

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  • Jun 24, 2004
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gruntman31 said:
My 97 makes good power. More than most bolt on GT's with ported heads/cams.
Click to expand...
Go ahead rub it in!
 

d98gt

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Mar 14, 2002
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Jun 24, 2004
#8
  • Jun 24, 2004
  • #8
a 96-97 is rated at 215 the 98 was rated as 225


Lucky to put down 190
 
D

DerekStangGT

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Feb 18, 2003
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Jun 24, 2004
#9
  • Jun 24, 2004
  • #9
AirWolf87 said:
werent 96 mustangs rated at 225 at the crank?? Oh man imagine what im pulling at the wheels? dont even wanna think about it
Click to expand...

i thought the 96s made 215 at the crank i know the 97s and 98s are rated at 225
 

SonicBlue2v03GT

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You know its a Fact...San Diego is the greatest ci
Jun 24, 2004
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  • Jun 24, 2004
  • #10
gruntman31 said:
My 97 makes good power. More than most bolt on GT's with ported heads/cams.
Click to expand...

Thats a good one Mr. 32V'r
 

99mikeGT

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Jun 24, 2004
#11
  • Jun 24, 2004
  • #11
my 99 made 225.6 at the wheels and 262 TQ with my O/R x pipe, Mac flowpath and bbk CAI. not impressive at all.
 

Modular2v

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Jun 30, 2002
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oklahoma
Jun 24, 2004
#12
  • Jun 24, 2004
  • #12
96-97 are 215, 98 was 225
 

Modular2v

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oklahoma
Jun 24, 2004
#13
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99mike that does seem a bit low....make sure u have a PI engine in that LOL jk
 

neoclasiccl

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I never had my 2002 GT dynoed
 

Modular2v

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gruntman how much was your mach engine with the harness and everything?
 

99mikeGT

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Jun 24, 2004
#16
  • Jun 24, 2004
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yeah i think my a/f ratio could have been messed up a but im not sure how to read it i have the dyno sheet scanned i wish someone could read it for me but its too big to post and i dont know how to shrink it from 351 kb down to the size allowed
 
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Joel's98GT

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Jun 24, 2004
#17
  • Jun 24, 2004
  • #17
if anyone wanted to know exactly how they are rated:

BHP = From the flywheel, with all accesories and full exhaust.
 

AirWolf87

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Mar 14, 2004
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Jun 24, 2004
#18
  • Jun 24, 2004
  • #18
98GTSteve said:
260hp is at the motor.... a stock mustang usually dynos ~230 rwhp. If they are making 245-260hp at the wheels then they are actually making 15-20% more at the motor... Factory HP is not rated at the rear wheel.
Click to expand...


And heres the sad part.....
I have a cuz with a '01 WS6 Trans Am with only a catback and a different airbox than ran a 330whp on a dyno.
 

twogts4us

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Apr 1, 2004
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Jun 24, 2004
#19
  • Jun 24, 2004
  • #19
AirWolf87 said:
And heres the sad part.....
I have a cuz with a '01 WS6 Trans Am with only a catback and a different airbox than ran a 330whp on a dyno.
Click to expand...

Finding this hard to believe since the 01 WS6 T/A was 'only' rated at 325 HP (that's NOT at the rear wheels), so likely about 260-275 actually at the wheels (using the formula of 15-20% parasitic drivetrain loss). Hard to imagine a cat back and different airbox gained an additional 55-70 RWHP...Musta been one of those 'fun-house' dynos where everything is distorted.
 
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DerekStangGT

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Feb 18, 2003
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Jun 24, 2004
#20
  • Jun 24, 2004
  • #20
twogts4us said:
Finding this hard to believe since the 01 WS6 T/A was 'only' rated at 325 HP (that's NOT at the rear wheels), so likely about 260-275 actually at the wheels (using the formula of 15-20% parasitic drivetrain loss). Hard to imagine a cat back and different airbox gained an additional 55-70 RWHP...Musta been one of those 'fun-house' dynos where everything is distorted.
Click to expand...

ive heard the WS6s are actually rated at a lower hp than they are i/they could be wrong tho. it does sound fishy for GM to rate a lower power
 
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