DOHC Swap

hybrid-Srt2001 · Post by **hybrid-Srt2001** » Tue Nov 10, 2009 10:26 pm

probably in the 8.5-8.7 area. I am running 10.5:1 dual cam pistons in my single cam and it's about 11:1 Putting stock dual cam pistons in a sohc = aproximately 10.3:1

MrAngry · Post by **MrAngry** » Tue Nov 10, 2009 10:37 pm

With sohc pistons? Probably around 9.1 ? Somewhere in the lower 9's, that would be my guess

hybrid-Srt2001 · Post by **hybrid-Srt2001** » Tue Nov 10, 2009 11:41 pm

lets get this straight.

ngc= 9.3:1

base= 9.8:1 i think

rt/acr= 9.8:1

dual cam 9.8:1

dual cam PISTONS with single head= 10.3ish

ngc with dual head= 8.8ish

base with STOCK dual=9.3ish

single with FORGED 10.5:1 = 11:1ish

single with 8.8:1 FORGED pistons= 9.2ish

MrAngry · Post by **MrAngry** » Wed Nov 11, 2009 12:10 am

Those numbers seem about right.

INVUJerry · Post by **INVUJerry** » Wed Nov 11, 2009 11:49 pm

You are correct, sir.

MrAngry · Post by **MrAngry** » Wed Nov 11, 2009 11:50 pm

So does that mean we can't come up with a swap list?

Adam G · Post by **Adam G** » Thu Nov 12, 2009 4:26 pm

9.2:1 something like that if not a hair lower but youd gain hp with the better flowing dohc head

Post by **occasional demons** » Thu Nov 12, 2009 5:07 pm

hybrid-Srt2001 wrote:
dual cam 9.8:1

DOHC C.R. = 9.6:1

Danteneon · Post by **Danteneon** » Thu Nov 12, 2009 5:12 pm

Adam G wrote:but youd gain hp with the better flowing dohc head

Unless you have a Magnum head. They will outflow a DOHC with less rotating mass.

MrAngry · Post by **MrAngry** » Thu Nov 12, 2009 5:18 pm

Its a good thing my question was answered

Post by **racer12306** » Thu Nov 12, 2009 5:33 pm

MrAngry wrote:Its a good thing my question was answered

I've been meaning to tell you. Your Charger doesn't have an ATX (Automatic TransaXle).

Sorry for the OT, just been bugging me.

MrAngry · Post by **MrAngry** » Thu Nov 12, 2009 5:35 pm

Yea I know Ive been meaning to change it, but way to lazy. And they did come with 3 spd autos.

Danteneon · Post by **Danteneon** » Thu Nov 12, 2009 5:39 pm

3 Speed Auto, yes. 3 Speed Transaxle, no.

ATX= Automatic Transaxle

/nitpicking

MrAngry · Post by **MrAngry** » Thu Nov 12, 2009 5:40 pm

Yea, it was easier to put it in all three.

Danteneon · Post by **Danteneon** » Thu Nov 12, 2009 6:03 pm

Gotya.