Engine packages and power figures???

[Anonymous]

Kostecki surprised me by offering a Ford 250 engine package at the cost of $3180 on their web site. They say this is dynoed to make 200 hp and 180fps (at engine) with a 215-225 at 50 dur cam.
For a small fee of just $1205 dollars extra you can get a package with a 210-227 at 50 cam (17 dur more on exhaust for goodness sake?). This is also presumably dynoed to make 205 hp and 185 fps of torque. A net increase of 5HP for $1200.
I would also be very surprised if the Holden 253 makes 235 fps and the Ford 250 175 fps with the same specs, as they say it does. I have an article where the Ford 250 and a 253 have both been dynoed and the findings state that the 250 makes more torque than the 253.
$1200=5HP. Please?

 

[xctasy]

Kostecki surprised me by offering a Ford 250 engine package at the cost of $3180 on their web site. They say this is dynoed to make 200 hp and 180fps (at engine) with a 215-225 at 50 dur cam.
For a small fee of just $1205 dollars extra you can get a package with a 210-227 at 50 cam (17 dur more on exhaust for goodness sake?). This is also presumably dynoed to make 205 hp and 185 fps of torque. A net increase of 5HP for $1200.
I would also be very surprised if the Holden 253 makes 235 fps and the Ford 250 175 fps with the same specs, as they say it does. I have an article where the Ford 250 and a 253 have both been dynoed and the findings state that the 250 makes more torque than the 253.
$1200=5HP. Please?

Relax bro'. I'm certain they mean 200 hp is 180 lb-ft, and 205 is 185 lb-ft.

If the engine did 180 lb-ft at 4700 rpm, thats 200- odd hp.

If the engine did 185 lb-ft at 4700 rpm, thats 205-odd hp.

Rule 1. Power in hp=Torque (in lb-ft) X 5252
. RPM
HP and lb-ft are equal at 5252 rpm, even if it can't do 5000 rpm!

Rule 2. In metrics, Power in kW=Torque (in Nm) X 9552
. RPM

kW and Nm are equal at 9552 rpm, even if it can't do 9000 rpm!

From the emperical rules I've listed before, the actual peak torque with a 200 to 205 hp net engine should be about 250-255 lb-ft at the 3000-3500 rpm mark.

I don't doubt the results of the dyno needle are as Kostecki say. I favour what they are doing, as its the right approach, back to back testing!

As installed in a car, a stock 250 2-bbl x-flow does 131 hp at 3800 rpm and 225 lb-ft at 2300 rpm at the flywheel. Even if the engine builder is the worst in the world, the torque figure will be more than 180 or 185 at less than the maximum rpm where power is reached.

As for the little 253, its got a huge ability to make peak power, so it may well out torque a 250, but not from idle to 3500 rpm.

 

[Anonymous]

Spot on again Execute.
I re-checked and my info confirms your right. Makes considerably more torque but only up to the 3500 rpm mark.
Cheers Tim

 

[DYNOED250]

200 hp for over 3 grand is a rip off