Stupid Cali Emissions
1st Gear Member
Joined: Dec 2005
Posts: 68
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RE: It's all about quality of the air we breathe
would definetly love to know how your gonna get 23 mpg to a 350+ hp car. my 05 gt puts out right around 300 hp and on average im getting between 16 and 21 mpg. not saying its not possible just wanna know how its done.
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Joined: Mar 2006
Posts: 2,328
From: Where I lay my head is home
RE: It's all about quality of the air we breathe
ORIGINAL: aj05must
would definetly love to know how your gonna get 23 mpg to a 350+ hp car. my 05 gt puts out right around 300 hp and on average im getting between 16 and 21 mpg. not saying its not possible just wanna know how its done.
would definetly love to know how your gonna get 23 mpg to a 350+ hp car. my 05 gt puts out right around 300 hp and on average im getting between 16 and 21 mpg. not saying its not possible just wanna know how its done.
I ♥ Acer
Joined: Oct 2004
Posts: 17,565
From:
RE: It's all about quality of the air we breathe
ORIGINAL: aj05must
would definetly love to know how your gonna get 23 mpg to a 350+ hp car. my 05 gt puts out right around 300 hp and on average im getting between 16 and 21 mpg. not saying its not possible just wanna know how its done.
would definetly love to know how your gonna get 23 mpg to a 350+ hp car. my 05 gt puts out right around 300 hp and on average im getting between 16 and 21 mpg. not saying its not possible just wanna know how its done.
5th Gear Member
Joined: May 2005
Posts: 2,445
From:
RE: It's all about quality of the air we breathe
I'd be willing to bet that you could get 50 more HP from your motor and pick up some fuel mileage, with the right parts, lubricants and a good dyno session. Then change your driving habbits. Use your cruise control, do the speed limit, and limit your brake use in town. That can make a huge difference.
Scott
Scott
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Joined: Mar 2006
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RE: Stupid Cali Emissions
ORIGINAL: 67Sally
So I've been working on getting the Cali Emissions off as well as the air conditioning unit and it looks to me like when I pull them off the pulleys and belts arent going to have anything to hold on to. What's going to happen if I unbolt these things? Are my pulleys just going to fall down? Do I need a bracket or anything to replace the a/c and emissions?
So I've been working on getting the Cali Emissions off as well as the air conditioning unit and it looks to me like when I pull them off the pulleys and belts arent going to have anything to hold on to. What's going to happen if I unbolt these things? Are my pulleys just going to fall down? Do I need a bracket or anything to replace the a/c and emissions?
3rd Gear Member
Joined: Sep 2005
Posts: 512
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RE: It's all about quality of the air we breathe
ORIGINAL: Scott H.
Any gain in performance you receive from removing the air injection pump is too small to be noticable. Figure, on average, it takes a 10% gain to get a "seat of the pants" feel. The air injection pump utilizes a max of 7 horse power (RPM dependent). That is why I said you'd have to have a pretty enemic engine to notice a difference.
If someone told you they removed the air injection pump and actually noticed a difference, they either had a bad air injection pump, a 70HP or less engine, or just *think* they actually have made a difference. All the air injection pump does is put air into the exhaust stream after the combustion process. It does nothing to lean out or interfere with the burn process. By injecting air into the hot exhaust gasses, it mostly dilutes what is coming out of the tail pipe, however it will also help burn some of the HC, so it does actually improve the exhaust gasses as well.
Any gain in performance you receive from removing the air injection pump is too small to be noticable. Figure, on average, it takes a 10% gain to get a "seat of the pants" feel. The air injection pump utilizes a max of 7 horse power (RPM dependent). That is why I said you'd have to have a pretty enemic engine to notice a difference.
If someone told you they removed the air injection pump and actually noticed a difference, they either had a bad air injection pump, a 70HP or less engine, or just *think* they actually have made a difference. All the air injection pump does is put air into the exhaust stream after the combustion process. It does nothing to lean out or interfere with the burn process. By injecting air into the hot exhaust gasses, it mostly dilutes what is coming out of the tail pipe, however it will also help burn some of the HC, so it does actually improve the exhaust gasses as well.
Of course the percentages of HC is less, you are pumping air into the exhast pipe, however the engine is still producing just as much Carbon monoxide and HCs and everything else. In fact, as the engine has to work harder to turn the pump, and has the exhaust port bump restriction, it actually produces more emmissions with the smog gear on!
A properly tuned classic engine, with modern lead free fuel, and certain modifications such as electronic dizzy, and low restriction exhaust, is far less polluting that a smog equiped vehicle of the past.
5th Gear Member
Joined: May 2005
Posts: 2,445
From:
RE: It's all about quality of the air we breathe
Actually it does work to reduce HC by allowing the fresh air to mix with the unburned gas and burn (which is why you have a "gulp" valve to reduce backfiring under heavy deacceleration. You're right in that it doesn't do much for CO, but it does not increase emmision levels PPM because of the drag. Add the tips you mention of a good tune and an electronic distributor and you gain that much more, by keeping it in place.
Scott
Scott
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