sohc vs dohc off the line

Reply Subscribe

Thread Tools

Search this Thread

11-25-2006, 11:51 PM

silverstang1996

5th Gear Member

Thread Starter

Join Date: Jul 2006

Location: carlisle PA

Posts: 3,007

sohc vs dohc off the line

i've heard this from a few poeple now and was wondering, why does a SOHC motor feel more torquey right off the line over a DOHC motor? does it take longer for both cams in the single head to get to its full potential or something?

11-26-2006, 12:06 AM

code3GT

Mustang Nazi

Join Date: Sep 2004

Location: Texas, baby

Posts: 13,444

RE: sohc vs dohc off the line

DOHC's like to rev higher and peak TQ comes in a little later.

11-26-2006, 12:07 AM

xxkazp3rxx

6th Gear Member

Join Date: Dec 2005

Location: Florida

Posts: 5,893

RE: sohc vs dohc off the line

but code correct me if im wrong... N/A 2v vs N/A 4v... even though the peak torque wont be until a higher rpm... the 4v will atleast match the 2v in the lower rpms, right?

All the dynos ive seen, I have seen it to be that way.

11-26-2006, 12:38 AM

code3GT

Mustang Nazi

Join Date: Sep 2004

Location: Texas, baby

Posts: 13,444

RE: sohc vs dohc off the line

Quote:

ORIGINAL: xxkazp3rxx

but code correct me if im wrong... N/A 2v vs N/A 4v... even though the peak torque wont be until a higher rpm... the 4v will atleast match the 2v in the lower rpms, right?

All the dynos ive seen, I have seen it to be that way.

Yes, it just feels different. The rpms range on the 4V is much wider so since you can turn more rpms than the 2V, the 2V will feel more torquey down low.

11-26-2006, 12:40 AM

xxkazp3rxx

6th Gear Member

Join Date: Dec 2005

Location: Florida

Posts: 5,893

RE: sohc vs dohc off the line

It FEELS more torquey down low, but it's really not - correct?

Its just part of the butt dyno, lol

11-26-2006, 12:42 AM

code3GT

Mustang Nazi

Join Date: Sep 2004

Location: Texas, baby

Posts: 13,444

RE: sohc vs dohc off the line

Quote:

ORIGINAL: xxkazp3rxx

It FEELS more torquey down low, but it's really not - correct?

Its just part of the butt dyno, lol

Pretty much.

11-26-2006, 12:45 AM

xxkazp3rxx

6th Gear Member

Join Date: Dec 2005

Location: Florida

Posts: 5,893

RE: sohc vs dohc off the line

k, that's what i thought. Thanks Code.

11-26-2006, 12:47 AM

code3GT

Mustang Nazi

Join Date: Sep 2004

Location: Texas, baby

Posts: 13,444

RE: sohc vs dohc off the line

Quote:

ORIGINAL: xxkazp3rxx

k, that's what i thought. Thanks Code.

No problem...Gotta LOVE the butt dyno.

11-26-2006, 01:12 AM

snakeman4life

4th Gear Member

Join Date: Jul 2006

Location:

Posts: 1,209

RE: sohc vs dohc off the line

I agree,they are really more or less the same at low rpms, just the 4V feels somewhat weak at low rpms because they are so much stronger above 4k than below 4k.