L18 flat top vs l20 flat top compression

[Crashtd420]

12 hours ago, banzai510(hainz) said:

I have a Schneider in my 521 and its a 460 lift 260 /270 duration I think. with just a Weber DGV

Personanlly I think that should be stock on a L motor. Isnt anything special. Its was was avail at the time

I think I'm using the same cam....

I liked the power range its ment for...

I have another used cam I have debated on sending out for a more aggressive grind... 

[datzenmike]

The stock cam is 248 duration but I doubt this is measured at 0.050" lift like all after market cam grinders. I suspect it's more like 220? Stock lift is 0.413" on the L20B cam.

[banzai510(hainz)]

On 11/8/2023 at 6:11 AM, Tonellius_620 said:

if I’m lucky, I’m hoping to push 102 hp

I read somewhere a SSS L18  with dual SU carbs was 77hp to the ground

[Tonellius_620]

2 hours ago, banzai510(hainz) said:

I read somewhere a SSS L18  with dual SU carbs was 77hp to the ground

Talk about major horsepower.

 

I am bummed they’re not that beefy but it’s my first build and these motors are easy to work on. 

[datzenmike]

115 PS for the L18SSS. PS is a metric HP equal to 113 HP. Dual SUs and 9.5 compression with a closed chamber 219 head.

 

The L16SSS was 100PS

 

This is likely a gross or brake HP measurement not allowing for drive train losses of around 17%. 113HP would be around 93 at the wheels? about the same an an L20B at the wheels?

[Stoffregen Motorsports]

After may years dynoing blueprinted L16s for SCCA ITC racing, we figured that the "96hp" advertised was flywheel horsepower, no air pump and SU carbs. So basically SSS form.