<VV> two two-barrels

[jwcorvair at aol.com]

True, and they were the carb of choice for the tri-pack applications like the GTO and the 427 Corvette. I've been looking at some of the sites for modifying Rochester 2CGs. There are quite a few of them. One site offers complete rebuild parts, new jets, linkage, and more. Also, the 2CG is a poplular carb for mild hot rodding of straight six Chevy and Ford engines, as well as marine engines. If I get some spare time, I'll look into this.

Joe White



-----Original Message-----
From: Mike Thomas <mthomasslo at mypowerpipe.com>
To: virtualvairs <virtualvairs at corvair.org>; jwcorvair <jwcorvair at aol.com>
Sent: Wed, Mar 20, 2013 8:11 am
Subject: Re: <VV> two two-barrels


Not just "small engines".  They were also used on Chevrolet 396's in 69 and 
ontiac 400's for several years.
Mike
---- Original Message ----- 
rom: <jwcorvair at aol.com>
o: <virtualvairs at corvair.org>
ent: Tuesday, March 19, 2013 7:25 PM
ubject: Re: <VV> two two-barrels


 True, even old efi systems can work much better than carbs, particularly 
 in a system where the carbs are old and were not originally intended for 
 performance. These carbs are not much more sophisticated than our HVs, two 
 throats instead of one. These carbs were pretty common on quite a few GM 
 vehicles, everything from Vegas to Firebirds - just about anything that 
 had a small engine requiring minimal carburation. Several sites offer 
 information about tuning the 2CGs for racing, which is not the same as for 
 the street. The ubiquitous nature of these carbs got me wondering if 
 anyone had played with them.

 Now, back to our regularly scheduled thread about anitsneeze.

 Joe





 -----Original Message-----
 From: mike & bev mann <vair65 at sisna.com>
 To: Sethracer <Sethracer at aol.com>
 Cc: virtualvairs <virtualvairs at corvair.org>; FrankCB <FrankCB at aol.com>
 Sent: Tue, Mar 19, 2013 9:11 am
 Subject: Re: <VV> two two-barrels


 On 3/18/13, Sethracer at aol.com <Sethracer at aol.com> wrote:
> How about a pair of TWM throttle bodies - replacing IDA  Weber 
> 2-barrels -
> non-progressive down draft models, with an EFI system to  limit the
> air-speed damage of opening all throttle bodies together? Both a 
> throttle
> position
> sensor and a mass airflow feed could be used. Hmmm. -  Seth
>
 which is why i like my old (1986) aftermarket efi system which uses a
 center mount 4 barrel throttle body with 4 injectors and a air mass
 sensor on a turboed 140. the air flowing past the "hot wire" in the
 sensor controls the amount of fuel delivery. off of boost the delivery
 rate is much smaller than when on boost and it's all done
 automatically. while ic's and etc are much better than the resistors
 and capacitors that i have in the ecu it still works. there is a
 slight delay in the transition from off to on boost according to the
 fast monitoring system we use it's not long enough to cause a lot of
 harm and much faster than a water injection system can react. the
 throttle body openings are non progressive which doesn't seem to hurt
 a thing as the total fuel requirement is set by the amount of air
 going thru the air mass sensor-mike mann
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