desktop dyno please!!!

[jgh64pkup]

will someone do a desktop dyno for a combo that im going to do
350
3.48 stroke
4.06 bore
5cc flat tops
5.7 rods
stock gapped rings
im guessing .02 below deck on the piston
.04 gasket thickness and 4.1 bore
487 heads bowl blended with 1.94 1.50 valves 75cc chamber heads
i think these are the same castings as double humps
crane energizer cam 480 lift 284 adv duration
performer rpm intake gasket matched to heads
650 mighty demon
70mm turbo .80 ar 10 psi boost
thanks

[ripdog28]

Desk Top Dyno is crap. Usually way off. Contact Super73 or look at the link in my sig. Super has an excellent program that has proven to be within a few ponies. If i were to guess on it, 275-300.

[jgh64pkup]

i changed it some

[ripdog28]

Oh, didnt see the turbo. I would still try to get some 2.02 heads.

[jgh64pkup]

will they cut to that big

[ripdog28]

Yea almost all 350 heads will and im sure those will. You will probly be better off getting a $500 set of vortech heads then spending the money on those old heads.

[mongoose]

kinda hard to run boost when you're already at like 10.51:1 on iron heads =/

[jgh64pkup]

they have 75cc chambers shouldnt that bring me down to about 9 to 1

[Super73]

I started building a engine profile for you, but, garbage in = garbage out.. Please take a look at this thread. I need all the info listed or it won't be near right..

http://67-72chevytrucks.com/vboard/s...d.php?t=317628

[jgh64pkup]

Engine info
Bore - 4.060
Stroke - 3.480
Factory tolerances or set up more as a race motor? - factory tolerances
Electric Water pump? - no
Electric Fan? - yes


Head data:
*----* Intake and Exhaust Valve size - 1.94 1.50
*----* Head flow numbers (Please provide them or a link to MFG's website, I don't want to have to search for info. If these are stock heads, try to give me a casting or something) - 487 heads
Compression ratio - 9 to 1

Type of intake (Single plain, dual plane, again link if you can find it). - edelbrock performer rpm dual plane http://www.edelbrock.com/automotive_...lds_main.shtml
Carb or TB (Is it a vacum carb?) - 650 mighty demon blow through http://www.barrygrant.com/demon/default.aspx?page=14

Header Data:
*----* Tube Diameter - 1 3/4
*----* Tube length to collector (this can be your best guess, but the more accurate, the better) - 30 in

cam info:
Link to MFG's web page or cam card would be best but..
Duration at .050"
Total Lift and based on what rocker ratio
Intake centerline
LSA - i cant find anything on the cam so ill go with a diff one
heres a lunati voodoo
Advertised Duration (Int/Exh): 284/292
Duration @ .050 (Int/Exh): 241/249
Gross Valve Lift (Int/Exh): .525/.546
LSA/ICL: 110/106
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 2500-6600
What rocker are you using? -1.5 harland sharp

Blower/turbo? - 70mm .80 ar 10 psi
I need to know size and PSI you are running.
Intercooler? Air to Air or Air to water? - no intercooler


Vehicle Data (I am going to try to keep this simple and use my aero for the most part). - 1964 c10 short fleet
Total weight - guessing 3800
Front/Rear weight bias - ?
What trans you are running (Gear ratio if different than stock) - th 350 stock
Size converter (STR if you have it) - 2700 b & m 12 inch
Gear ratio - 3.73
Differential (Open, production posi, spool) - gov lock
Tire size (height, width and type, again if you have a link to the MFG's page, even better). - 275 60r15 mickey thompson et street radial http://www.mickeythompsontires.com/s...ETStreetRadial

[Super73]

I'll see what i can come up with, but you sure your headers are going to be 30" length? Where are you mounting the turbo?

487 heads? Sorry, not a big old school guy. Do you know any factory flow data? Are they similar to a 462 casting? 441? 882? These are heads that are preloaded. If not, I'll need flow numbers for .300 .500 and .600

[jgh64pkup]

umm i forgot about them being turbo headers i guess around 18
-at .100"-.200"-.300"-.400"-.500"-.600" valve lift

-int-52-103-155-177-185-193
-exh-44-81-111-128-128-128
plus a little bowl work and a little combustion chamber smoothing

[Super73]

I'll be gone for a couple weeks and will finish up when i get back.. sorry for the delay...