How much HP does your 289 have?
11-27-2009, 05:17 PM
#1
2nd Gear Member
Thread Starter
Join Date: May 2009
Location: GA
Posts: 155
How much HP does your 289 have?
just curious as to how much you guys are getting out of a 289. i realize some of you diehards/mechanics are prolly getting a lot and some others are just keeping it more stock. just trying to get some type of average for that engine. and if you have a stroker 289 just mention it.
i have a 289 A code. after it comes back from the shop next week the guy said i should have somewhere in the neighborhood of 300hp.
i have added :
tri Y headers
flowmaster 40 exhaust
voodoo cam
new carb---not exactly sure what it is
new air intake manifold
i have a 289 A code. after it comes back from the shop next week the guy said i should have somewhere in the neighborhood of 300hp.
i have added :
tri Y headers
flowmaster 40 exhaust
voodoo cam
new carb---not exactly sure what it is
new air intake manifold
11-27-2009, 07:35 PM
#3
2nd Gear Member
Join Date: Feb 2008
Location: MI
Posts: 240
Just give your wife the phone number of your engine builder.
I just gave my wife the phone number of my engine builder. He's looking at a 289 or a 302 for my 66. I'm hoping my wife will call him with a credit card number for xmas.
The engine builder said something about just getting a different cam shaft (difference between a 302 and 289 maybe?).
The engine builder said something about just getting a different cam shaft (difference between a 302 and 289 maybe?).
Last edited by GibMax; 11-27-2009 at 07:37 PM.
11-29-2009, 12:02 AM
#5
2nd Gear Member
Thread Starter
Join Date: May 2009
Location: GA
Posts: 155
200 hp after all that work??? they came with 225 stock......i dont see how that is possible. i have never dynoed the car. i have raced many cars and have beat 350z , 98 style mustangs, and other sports cars that have more than 250 hp.....
11-29-2009, 08:26 AM
#6
6th Gear Member
Join Date: Feb 2007
Location: state of confusion
Posts: 7,635
I suspect that different measures of "horsepower" are being spoken here. SAE gross (225, crank), probably SAE net (190-ish), possibly a measurement at the wheels. Comparing just the numbers doesn't help until everybody is speaking the same language.
That said, I'd guess you might be up around where the K-code engine was, assuming a good rebuild and a little fine tuning of the carb and ignition. Call it 275 SAE gross/235 SAE net.
Somebody with better knowledge of what Shelby did to get a claimed 306 might be able to justify another number for you if that sort of work was also done to your engine.
Don't forget that a '65 Mustang is a relative lightweight compared to almost anything recently sold with either a V8 or 250+ horsepower. And while the 289's torque was clearly on the weak side back in the mid-60's (compared to, say, the 327 SBC), it's still going to be higher than what anybody's normally aspirated 2.7- to 3-liter V6 puts out.
Norm
That said, I'd guess you might be up around where the K-code engine was, assuming a good rebuild and a little fine tuning of the carb and ignition. Call it 275 SAE gross/235 SAE net.
Somebody with better knowledge of what Shelby did to get a claimed 306 might be able to justify another number for you if that sort of work was also done to your engine.
Don't forget that a '65 Mustang is a relative lightweight compared to almost anything recently sold with either a V8 or 250+ horsepower. And while the 289's torque was clearly on the weak side back in the mid-60's (compared to, say, the 327 SBC), it's still going to be higher than what anybody's normally aspirated 2.7- to 3-liter V6 puts out.
Norm
11-29-2009, 02:09 PM
#7
2nd Gear Member
Join Date: Jul 2009
Location: Maryland
Posts: 201
ford's claimed 225 hp stock was more like 190, if that.
HP is a subject often exaggerated, sorta like the concept of why women are so bad with measurements, they've been told 5 inches in 9 inches for years.
HP is a subject often exaggerated, sorta like the concept of why women are so bad with measurements, they've been told 5 inches in 9 inches for years.
11-29-2009, 05:06 PM
#9
3rd Gear Member
Join Date: Oct 2006
Location: Kirkland, WA
Posts: 934
http://www.youtube.com/watch?v=OeNotjdQ2HM
Rebuilt: 289, suspension (grab-a-trac), c-5 tranny
Upgrades: Weiand Action + Intake maifold, Holley Street Avenger 570cfm, Hooker Comp Headers, Flamethrower Coil and Distributor
at the wheels its 185hp and 240 ft lb tq
Rebuilt: 289, suspension (grab-a-trac), c-5 tranny
Upgrades: Weiand Action + Intake maifold, Holley Street Avenger 570cfm, Hooker Comp Headers, Flamethrower Coil and Distributor
at the wheels its 185hp and 240 ft lb tq