Modernization Plan and Reassembly

38:29

47:33

334.2K views

At 38:29 in

Lake Speed's Ford C3 NASCAR Engine: Time Capsule of 90s Technology! (Dyno & Full Teardown)

Watch on YouTube

What happens here

Based on the internal inspection, the team concludes that the low compression ratio (9:1 instead of the ideal 13:1 for NASCAR) caused by the reverse dish pistons is the primary reason for the low horsepower. The other factors like worn distributor gear, high blow-by, and potentially sub-optimal cylinder wall finish are secondary. The modernization plan includes installing custom-made pistons to achieve a 13:1 compression ratio, performing a professional valve job on the cylinder heads, and potentially upgrading the camshaft to a more aggressive profile. The cylinder walls will also be honed to achieve an optimal plateau finish with sufficient valley depth for proper oil retention. The entire engine will then be reassembled with new Total Seal piston rings designed to minimize friction and blow-by. After reassembly, the engine will undergo another dyno test to validate the power gains, with an ambitious target of exceeding 700 horsepower.

Goal: Develop a plan for engine modernization and reassemble for re-testing.

Tools and materials

Aggressive Camshaft — Improving valve timing and lift for increased power
Custom Pistons — Increasing compression ratio to 13:1
Cylinder Head Servicing Equipment — Performing a professional valve job (valve seat grinding, new seals, etc.)
Cylinder Hone — Optimizing cylinder wall surface finish
New Total Seal Piston Rings Total Seal — Minimizing friction and blow-by for improved efficiency

What they say

(1,483 characters)

Hide

horsepower nope not really the most conclusive thing we've seen so far is the compression ratio but it's still like that's that's the biggest thing we know for a fact that those are cupheads made for high compression domed piston and this is their reverse dish you know less than a flat top piston to bring compression down so obviously that's going to affect how much power it can make by by lowering that see it's got really lazy uh lazy airflow because it would have if it's made for more compression i'm gonna have uh that's it that's really more engine speed okay now compressions what you're doing once you get the air in the cylinder so like with the camshaft camshaft's not crazy um we ran 8000 rpm which isn't actually a little bit past 8000 rpm but it didn't make any power just dead which means yeah it's just yeah i wonder what the actual compression ratio is were these pistons for nine to one with a different head and now it's like eight and a half is it like eight very well could be right so i think that's one thing maybe we might do is cc the piston and cc the heads and figure up what our compression ratio actually was this is like an eight-to-one bow motor now yeah yeah yeah that shows why it didn't really respond to more time you know it's like you can try to help it all you want but it's just not going to get there from here if we can get custom pistons made in reasonable amount of time that's the best thing to do that way we can really optimize what we

Auto-generated from the video audio.