new carburator

Reply Subscribe

Thread Tools

Search this Thread

Oct 4, 2005 | 11:58 AM

#31

mdmbkr

Freshman User

Joined: Sep 2005

Posts: 46

Likes: 0

Thanks for that info, sounds like the DP is what I want also.

Oct 7, 2005 | 03:08 PM

#32

WoomaHodal

Thread Starter

Senior User

Joined: Dec 2004

Posts: 320

Likes: 0

From: Dallas, Texas

Will the C series use more gas than the DP ones?

Oct 12, 2005 | 01:37 PM

#33

BigBear1

Senior User

Joined: Apr 2004

Posts: 193

Likes: 0

I found these descriptions on www.summitracing.com they may or may not be helpful.

More power across the rpm range.
Offenhauser Dual Port intake manifolds feature completely separate runner systems for the primaries and secondaries. At low-load, the primaries feed the fuel-air charge through the smaller bottom passages at near sonic speed, improving power and efficiency. When the secondaries open, their charge goes through the bigger, cooler upper passages. Then, in turn, it is rammed into the cylinders when it encounters the high-velocity mix from the primaries. The result is better fuel economy and a 15-30 percent power increase across the whole rpm range.

Added muscle for small cars and pickups.
Offenhauser C Series intake manifolds fill the gap between stock and competition setups for 4 and 6-cylinder cars and pickups. They improve torque in the mid and upper ranges, with power bands that span from 2,500 rpm to more than 7,000 rpm. Smaller applications use Holley 5200 or Weber 32/36 series 2-barrel carbs. Holley 2300s can be used for competition with an adapter. Six-cylinder, 4-barrel versions can use square bore Holley or Carter carbs. Emission-control provisions can be blocked off for competition.

Oct 12, 2005 | 10:56 PM

#34

Mark-I6

Senior User

Joined: May 2005

Posts: 416

Likes: 0

From: Federal Way, WA.

i did a swap out two weeks ago, and i used the C-series offy intake, and an edlebrock 4 barrel cab. i have seen a huge gain in power across the board and i have a vacuum leak. i cant wait till i find and fix it so i can tune things right and get the whole affect

oh and i am getting around 12 mpg.

Nov 14, 2005 | 02:58 PM

#35

BigBear1

Senior User

Joined: Apr 2004

Posts: 193

Likes: 0

Finally!!!!!!!

Got my Offy DP Friday (11/11/05) from JEGS, a month earlier than they said it was going to get here

I still had to wait a long time though

I can't wait to get it on!

Nov 14, 2005 | 04:16 PM

#36

srercrcr

Postmaster

Joined: May 2004

Posts: 2,854

Likes: 0

12 mpg? I thought they said "better fuel mileage"!

Nov 14, 2005 | 04:45 PM

#37

WoomaHodal

Thread Starter

Senior User

Joined: Dec 2004

Posts: 320

Likes: 0

From: Dallas, Texas

I'm getting around 12mpg also

i have the single barrel carter carb though

Nov 14, 2005 | 11:33 PM

#38

Mark-I6

Senior User

Joined: May 2005

Posts: 416

Likes: 0

From: Federal Way, WA.

the reason that i was/am only getting 12mpg is because i have a vacuum leak so i can not adjust the carb properly. That was also when i had first done the swap and was playing with it. Now i am getting about 15 but i still have a pretty big vacuum leak.