Desktop Dyno
 

A friend of mine ;) has some numbers to run through a DD can somebody run them?

Craig

Sure. post everything about the engine and exhaust plus the cam card information (lift, lifter type and valve opening/closing degrees) and I'll run it.

Can the DD2000 run a blower motor combo?

What about this package:

MarkIV 454 .060 over

GM cast iron rectangle port heads

8.25:1 comp.

671 blower/Superchiller 750 Holleys

Comp Cams hyd roller CB3376/3377 .613 intake/.613 ex
[email protected], 240in/250ex 114 lobe separation

CMI headers

Thanks!!!!!

Kurt

1600 hp, a gazillion ft.lbs. of torque,,,,,,,,,,,,
just kidding. can you give me the cam card specs? If not, get me the intake c/l. I also need the belt drive ratio to get accuracy.

I do not know the blower pulley specs but I am running 8 lbs boost.

The cam card I have right here, the duration @.006 tappet lift 295 in/305ex

open close
valve timing at .050 int: 6 btdc 54 abdc
ex: 59 bboc 11 atdc


these spec for cam installed at 114 intake center line

duration at .050 240in 250ex

lobe lift .3610in .3610ex

lobe separation 114.0

Thanks Crazyhorse!

Biggus, you're going to think these numbers are crazy. 760hp@7000, 659 tq@5500. That's figuring 50% efficiency on the intercooler and 1:1 belt drive. You're probably underdriving the blower so a .8 would probably be more realistic.

Yikes! :eek:

What does it read at 5800rpm?

Thanks again Crazyhorse!


Kurt

CrazyHorse,
You have a PM. Sorry about sending it twice! AOL:hothead: at home and it didn't recognize that it had been sent.

Craig

That's alright.

here are the number I got differnt not sure why

4.31 bore 4.00 stroke
GM990 heads with 2.19/1.88 valves ( flow #'s from chevperfmagazine)
CR 8.25:1
750cfm carb
forced ind Roots 671 blower 55% eff boost limit 8psi
belt ratio 1.00 intercooler eff 50%
Small tube headers no mufflers
hyd camm using seat to seat of 295/305 on 114 lift .613/.613
( i also tried the .050 numbers and the program showed little less power that way)

sorry about all the decimal places that just what the program does

RPM___HP________Torque
2000 172.336670 452.383759
2500 246.643356 517.951050
3000 314.141876 549.748291
3500 382.473511 573.710266
4000 443.624512 582.257141
4500 498.340942 581.397766
5000 538.593140 565.522766
5500 543.517090 518.811768
6000 505.358521 442.188690
6500 484.891754 391.643341
7000 440.246948 330.185211