Re: [DML] Heat Stove Function.

["daveswingle2" <dswingle@xxxx>]

John - the DMC engine has no Mass Air Flow sensor. That is typically 
used on Electronic FI engines. Are you talking about the valve that 
controls heated intake air? This is an emission control device that, 
in your climate may not be particularly necessary, but is considered 
part of the car'e emission system for legal/inspection purposes in 
some states. It will also make the car run better when it is extremely
cold (sub-freezing) outside.

When you say a "considerable amount of pickup" what do you mean? 
Measured how? If you are running 93 octane gas, and adjusting 
ignition timing to take advantage of that, it is a separate power 
gain from any impact of removing air intake heater. Sounds to me like 
you changed several variables at once, which makes it hard to tell 
which had what impact. This is another case where some dyno numbers 
would be helpful. Having witnessed several dyno sessions on various 
DeLoreans, I find it hard to believe that significant, consistent, 
measureable HP gains can be had by tweaking. An example of this 
comparison is the chart that Bob Brandys created a while ago. See 
at http://www.dmcnews.com/Resource/horsepower.html

Dave Swingle


--- In dmcnews@xxxx, dherv10@xxxx wrote:
> Robert, I just wanted to confirm with you. I to had removed all the 
air mass 
> sensor and ran a flex pipe straight off the bottom of the air 
breather to the 
> hole in the rear quarter panel. I saw a considerable amount of 
pickup. I also 
> adjusted my air flow meter after the car warmed up to compensate if 
any. 
> Coupled with 93 octane gas and the HV coil, I see a considerable 
pickup. I 
> have take people riding in my car and they can't believe something 
else 
> hasn't been do to it.