is it atually 260hp

[stanford20]

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?

 

[98GTSteve]

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]

ditto

 

[neoclasiccl]

 

[AirWolf87]

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]

werent 96 mustangs rated at 225 at the crank?? Oh man imagine what im pulling at the wheels? dont even wanna think about it

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

 

[AirWolf87]

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

Go ahead rub it in!

 

[d98gt]

a 96-97 is rated at 215 the 98 was rated as 225


Lucky to put down 190

 

[DerekStangGT]

werent 96 mustangs rated at 225 at the crank?? Oh man imagine what im pulling at the wheels? dont even wanna think about it

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

 

[SonicBlue2v03GT]

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

Thats a good one Mr. 32V'r

 

[99mikeGT]

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]

96-97 are 215, 98 was 225

 

[Modular2v]

99mike that does seem a bit low....make sure u have a PI engine in that LOL jk

 

[neoclasiccl]

I never had my 2002 GT dynoed

 

[Modular2v]

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

 

[99mikeGT]

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

 

[Joel's98GT]

if anyone wanted to know exactly how they are rated:

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

 

[AirWolf87]

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.

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]

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.

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.

 

[DerekStangGT]

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.

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