So with hp peaking at 6500 as you say, and per your estimate;torque then peaking at 5000, How in the world are you gonna gear this to be driveable on the street?
I understand it will take a serious TC just to get moving. But to make torque to the rear axles even resembling a stock teener with 3.23s, is gonna take some serious torque multiplication.
For instance;
An old teener may torque peak around
340ftlbs@2400 rpm. With 3.23s and 5% slip this is 23mph*.The torque to the axles will then be
2690ftlbs.The stocker, per your math is putting out 340/318=1.07 ftlbs per cid.
>To match that; what gears will the W2 beast need, since the torque peak has moved up from 2400 to 5000?,and taken a serious chunk of low-speed torque with it.
The Beast might be putting out 1.25 ftlbs/cid or
398#@5000,say. IF it could make 268@2400, it would need 4.10s to make 2690,just to match the stocker.But of course it would need a hi-stall, so no point in even discussing this.
>At 32mph, the stocker will be at 3300;hammer-down in first, a really good place for it to be as it marches up to its horsepower peak; perhaps still making 80% of its torque-peak or
272#*
>At 32mph, the Beast will be at about 4200,still climbing up to the torque peak, at probably 85% or,say
338#*. So by now, the Beast is rocking, and the Old Girl has been left behind.
>The OldGirl would be wheezing pretty good at 5000=48mph, whereas the Beast would take that 2.45 low gear to 55mph@7200.
I get all that.
But put those W2s on a 360.With a much smaller cam.And gear it to shift at a new lower rpm,say 6250 with 3.55s. Outshifting at 6250 means a power peak at about 5400(with a TF), so we are looking at about a 228*@050 cam with W2s.The torque peak might be down around 4000*, and it's gonna be huge; say 1.18 # per cid =425, and it comes at 37mph. At 32mph it may already be putting out 95% of that, or
404#. With 3.55s that puts
3514# into the axles.
Playing with the numbers,Here comes the point;( hit Ctrl- to make it fit)
...Axle#@At
[email protected] of
[email protected] To 60......mpg Stocker........2152#@3300...1850.....3.23.....5000@48....2608......230....tortoise.....18ish
the Beast.....3398#@4190...3200*
[email protected]
the 360......
3514#@3630...2800*...3.55.....6250@55....
2867.....400*.
lightning..16+*
360HP.........3514#@3518....2800*
[email protected]*...hare........17.5*
*=estimated......360HP= A999 behind that 360, and a 3.23
But why do I estimate the 360 as lightning compared to the Beast as a hare?Well the Beast is outta revs at 55 and will have to shift. And then with a Torqueflite, the Rs will drop down to 4440, where we find just say 95% x 398#=378 ftlbs, which is 320hp, and the beast is gonna hit 60 at 4844rpm or about 367hp.This would be 320+367/2=344hp average from 55 to 60mph.
>The 360 on the otherhand has lotsa revs left, hitting 60 at 6818,not shifting, where its horsepower may still be higher than 320 with those W2s. So we saved at least the shift-time,AND the 360 put down more average HP during the test, and you know who usually wins with more average power, and with more starting line torque.
>But even if the 360 was to shift, the Rs would drop to 3688, where the 360 puts out probably more than 95% of its peak torque,or 404 ftlbs, which is 284hp. At 60 it will be spinning 4030 and making 100% of its peak torque or 425#= 326hp. This would be 284+326/2=305 average from 55 to 60 mph.
So if they were; even Steven, side by side, and both shifting at 55, then the Beast would pull a bit on the 360,between 55 and 60mph. But I can't see the beast keeping up to the 360,in first gear,with the combos as outlined above.And even if it did;there are too many pluses to the 360 combo,for me to consider the Beast. I value; comfortable cruising and saving money at the pump,and laying on the gas at 32mph, and most especially;long engine life with just basic maintenance.
I know which one I'd build
Of course; I am not you,CC,lol.
