Build me a Small block

Heres my 2c -

To be honest, it doesnt fuss me if you take on board what guys like Mopaer have told you - you may have some shortcuts and you might save some pennies on the deal -

But I DO worry when I read this........

Ryans build was VERY simple just a hyd flat tappet off the shelf cam with about .525" of lift and 9.5-1 compression. RPM airgap intake and some cheap roller rockers. Keep in mind this was for his daily driver so he was also looking for reliability when he built this. it ran 113mph in a 3550 lb. car with 3.55 gears.
Sorry to disappoint - but theres no way that MPH and weight = 500HP. PERIOD

113 mph at 3600lbs = a flat 12, and appx 400 FWHP.

Rule 1 - gears don't effect the trap speed that much, so it doesn't matter if he was running 4.11s or 3.23s- the MPH/weight tells the story -

I don't know if thats what RYan told you, or you got the MPH and used one of these on-line calculators, MOST of which are wrong.

Big statement I know, but read on..........

Rule 2 - Most of the on line calculators are based on the Moroso slide rule -

(Without getting too antsy - A lot of guys out there like to think its RWHP because they can then say that their engines are making X+ more HP than they actually are).

But here's the reasons why its not RW hp:

Rule 3 -


Moving on - the purpose of this post is not to "can" what Ryan has said - I dont know how the quoted 113/500HP figure was arrived at - But there's a lot of folks out there who still don't realise the HP calculators are not RWHP.

Most of the time, when the car runs a full second slower than the "HP" they THINK the engine should be making (Cos its never dynoed) , they look at other areas - without understanding how the Moroso calculator was invented.

Another example - The car in the vid is a full weight appx 500 FWHP 360, No big arm, NO gas, 3600lbs, sorted over a period of 7 years , no traction issues, J heads (yep Js....) that flow appx 280 CFM, rear leaf sprung etc. Basically its as "sorted" as you'll ever see for the fairly straight fwd engine combo it is.

Its best was 10.89 at 123 mph through the Magnaflos- Yep - thats 500HP for a consistent 123 mph.

This was an earlier run in its build as far as I recall......476 FWHP - 118@3600lbs = 11.18

No way no how is 113mph making 500FWHP. :-D

http://www.youtube.com/watch?v=YLt-YmaJuJk

I NEVER said 500hp to the REAR wheels. I dont know what drivetrain was in his car...I however did run the HP calculations BEFORE I posted it and yes it was around 400 at the rear wheels figure in 50 horse loss in the drivetrain and you are around 450hp at the crank...and keep in mind he used a SMALL cam shaft and only 9.5-1 compression. my point was for a street strip car NOT a daily driver you could up the compression and install a little more lift and probably pick up that 50 horse. I just had one of the best small block mopar guys in the country tell me it was possible to do for around 5K and you are still doubting it.