Question about Advancing and Compression
Question about Advancing and Compression I have read people are recommended to add 2-4 degrees of advance to help increase torque and the bottom end.
I'll give a couple examples.
228/232 110+4 cam only
228/232 110+1 cam only but this one has milled heads to increase the compression instead of advancing the cam.
Assuming both have the same compression, which one will make more power?
I'll give a couple examples.
228/232 110+4 cam only
228/232 110+1 cam only but this one has milled heads to increase the compression instead of advancing the cam.
Assuming both have the same compression, which one will make more power?
TECH Fanatic
Joined: Oct 2002
Posts: 1,286
Likes: 0
From: NW Houston,TX
I have read people are recommended to add 2-4 degrees of advance to help increase torque and the bottom end.
I'll give a couple examples.
228/232 110+4 cam only
228/232 110+1 cam only but this one has milled heads to increase the compression instead of advancing the cam.
Assuming both have the same compression, which one will make more power?
I'll give a couple examples.
228/232 110+4 cam only
228/232 110+1 cam only but this one has milled heads to increase the compression instead of advancing the cam.
Assuming both have the same compression, which one will make more power?
https://ls1tech.com/forums/generation-iii-internal-engine/327734-cam-guide.html
I've read that and know all the basics about cams. I'm just wondering if people are advancing the cams purely for increasing compression or does it have to do more with the valve events?
TECH Fanatic
Joined: Oct 2002
Posts: 1,286
Likes: 0
From: NW Houston,TX
It would have to deal with the valve events changing. As you add more advance to the camshaft you lower the intake valve closing point. Where the intake valve closes has to deal with more of where the engine will make its power. If the intake valve closes earlier the more power the engine will make down low, the later it closes the better that engine will make power up high.
Yes the DCR would increase but that help make power everywhere, only reason there is so much talk about adding more DCR to a big cam is because the more compression helps keep the gas residue out of the intake during overlap.
Hope that helps
Justin
Yes the DCR would increase but that help make power everywhere, only reason there is so much talk about adding more DCR to a big cam is because the more compression helps keep the gas residue out of the intake during overlap.
Hope that helps
Justin
I know the effect advancing cams has on valve events. I'm making a simple question with regards to the two cams I mentioned in my first post. Not about cams in general.
Which one will make more power assuming they both have the same compression?
Which one will make more power assuming they both have the same compression?
Well then the answere would be depends. At what range are you speaking about. But assuming you are just talking about which will get you down the track faster and make the most overall power i would say the camshaft installed at the 109 ICL
