2020 small block race?

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Ok after some math and talking if you take
-.5 off for 4" stroke + the hit for whatever block you would be using would that be fair? -.5 for 4" stroke -.6 for 360 block -.4 for overbore would get you a 408LA or 14.4 leaving everything else alone based on base car.
Wouldnt help on Big blocks but one thing at a time.
 
Stephen Hotz said:
So a 4" crank @ .5 would have less of a hit than .6 for a 360?
Click to expand...
Idk... lol. now you can see why I stayed away from strokers... Almost have to do a cubic inch chart. every 5 cubic inches over a 318 cubic inches deducts... x amount.
 
Stephen Hotz said:
Ok after some math and talking if you take
-.5 off for 4" stroke + the hit for whatever block you would be using would that be fair? -.5 for 4" stroke -.6 for 360 block -.4 for overbore would get you a 408LA or 14.4 leaving everything else alone based on base car.
Wouldnt help on Big blocks but one thing at a time.
Click to expand...
This actually comes close to the trend the math was going but math vs what is fair.
 
A class for each “stock stroke based” cubic inch engine?
Small block 4 inch (& plus) armed strokers unto themselves?
Repeat for big blocks. 400 & down one class?
440 & up another?
 
rumblefish360 said:
A class for each “stock stroke based” cubic inch engine?
Small block 4 inch (& plus) armed strokers unto themselves?
Repeat for big blocks. 400 & down one class?
440 & up another?
Click to expand...

What about 401 to 439 big blocks? As in 413 and 426 wedges.

Could say b block class and rb class.
 
Is this race going to happen? Or is it still in the "maybe" category?
 
Going to happen, whats in the maybe is big blocks. I havnt slowed doen sinced I got home so no posts or time to do anything.
 
Preview of updates. Still not done with Big block stuff.

Screenshot_20191219-013415.png


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you need to make your chart a link so we can open it up and view it with better visibility. I'm having trouble reading the print, so small. If them are "+" signs in front of the 340/360 blocks, I think you mean "-".
 
318willrun said:
you need to make your chart a link so we can open it up and view it with better visibility. I'm having trouble reading the print, so small. If them are "+" signs in front of the 340/360 blocks, I think you mean "-".
Click to expand...
I have to set something up as I am doing most of this off my phone.
 
Stephen Hotz said:
I have to set something up as I am doing most of this off my phone.
Click to expand...
I actually asked Joey if there was something he could do on this site that would allow people to view the standing/participants and yet allow me to make changes. He said he couldn't, so I put a spreadsheet in onecloud, and that made it possible. Each page I posted the link closest to the top so no matter what page somebody was look'n at, they could click on it and see the current standings.
 
Nominal Car (TDC) Tenths E.T.
LA 318-2 stock with 2.76 gears in a 3300 lb car (no driver) 100 % street at sea level (dual exh. ok) - 15.9

Weight 3300 lbs no driver. Add + / Subtract - .1 per 100lb (round to the nearest 100) always no driver.

Gear (2.45-2.99) = TDC (3.00-3.49) = -.3 (3.50-3.99) = -.5 (4.00-4.49) = -.7

Tires Height 25 inch - 28.5 inch =TDC 29 inch or more + .2 any D.O.T. tire OK

Vans/Trucks + .3 for wind resistance on any full size Van or Pickup (dakota/durango is NOT full size)

4x4 + .2 for 4x4's without loc-out hubs

Elevation
+.2 every 1000 ft. (use front numeral, no rounding) Do not figure air quality

Blocks/Cubic Inches
318 318 cubic inches is base (TDC)
273 +.6 for using a 273
340 -.5 for using a 340 block
360 -.6 for using a 360 block
Magnums subtract an extra -.3 from the C.I. section if you are using a magnum block

Engine Build (LA 318 2bbl is Base Engine)
Carb/intake -.4 be it a 4bbl, 6bbl, 2x4, FI, 360 2bbl, or anything other than factory 318 2bbl.

Exhaust -.4 for headers

Heads -.4 for worked 318 heads or stock 340/360/stock magnum heads
-.6 for worked 340/360/magnum heads (EQ's fit here)
-.8 for aluminum or W-2 type heads

Cam 318 2bbl cam is base (factory magnum cams fit here)
-.4 for ugraded cams of .480 lift/229 duration @50 or less
-.6 for upgraded cams .481 lift/230 duration @50 or more

Pistons -.4 for any overbore. Has to run pump gas of 93 octane or less to be street

Cranks 273 -340 Must be 3.31 factory stroke. 360 3.58.
-.5 for stroker cranks, this includes stock stroke crank in a block that did not use it from factory.

Tranny
904 904 is what is assumed in the TDC (nominal) car.
727 +.3 tenths for 727
OD/998/999 no penalty. Weight of O.D., and lock up with stock converters offset low 1st gear

Converter -.4 for upgraded street convert of 2200-2900 stall
-.7 for upgraded super street converter of 3000 stall or more

Valve body -.2 for manual valve body
Tranny continued
Manual -.3 if you have a clutch

Clarifications
1) Car must be 100% street and remain that way at time trial. Street means pump gas, and cruising 1/2
hour at 55 mph on summer day is no problem. No open headers/slicks.
2) No power adders (boost/nitrous/high octane fuel)
3)Definition of "worked heads" mentioned, means milling over .010, any porting/gasketmatching or
larger valves.
4) Traction devices including DOT drag radials are ok. No Penalty
5) Hood scoops and fresh air are OK. No Penalty
6) Any ignition upgrades are OK. No Penalty
7) Honesty, just be honest. No purse, so keep your integrity
8) + is add. - is subtract
 
Last edited:
Stephen Hotz said:
Cranks 273 -340 Must be 3.31 factory stroke. 360 3.58.
-.5 for stroker cranks, this includes stock stroke crank in a block that did not use it from factory.
Click to expand...
So if I'm reading this right, what I quoted about the stroker cranks is the only thing that's been changed?
 
Still trying to get some input on some items for the 1/8th mile guys.
What calculator to use?
Do you make only the listed gear ratios legal as a lot of them gear numerically higher?
So for the moment yes. I still have a few days left to get this done and up.
 
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