i have a couple of questions about the tweecer. i have been doing some reading on it and it seems a little more indepeth than anticipated but it should be a big deal ill just have to learn. my main reason for wanting a tweecer is so that i can remove all the smog componetry so that my engine will run cleaner in terms of no dirty gasses recerculating and to cut down clutter in engine bay. i no with the tweecer i can remove these with out the cel. i also would like to install 24lb injectors into my motor which the tweecer will alow me to do, and last of all since i am doing a sd to maf swap and i will be using the mustang a9l comp which is for a 302(correct me if im wrong) and i have heard that the 302 comp will cause a slight leaning in upper power band, this should also be correctable with tweecer? my main reason for posting is to ask when using the tweecer can i use the stock mustang tune and just make some small changes to it like fixing the lean spot up top and calibrating it for the slightly larger injectors, how difficult would it be to make these small adjustments if possible. im looking for a little more clarification on this setup from people who are using it.

 

You're confused on how the emissions works. You have LESS emissions and less "dirty gasses" with the EGR valve installed. It takes some of the exhaust and reburns it resulting is lower emissions and allowing for a leaner mixture. This helps fuel economy too. I', not sure that you can tamper with emissions controls with tweecer as that would make it a felony to sell it.

 

Start by telling us what motor you are putting all this on. If it's a 302 or 351 using stock heads there's no need for larger injectors and adding them is just making more work for yourself. You have also been misinformed about the fuel curve going lean, this simply doesn't happen on a MAF motor unless it's been hacked or modified incorrectly.

 

the motor is on a 351w, that is why i was worried about it going slightly lean because of the cumputer being for the 302. the large injectors where only going on there for future plans but since i have to buy new injectors anyways i figured one size bigger than stock wouldn't hurt. do they have to flow more fuel or can they just flow more fuel if you allow them to. as with the first post u obviously don't under stand what a clean engine means to me, i am talking about clean internally i don't like the idea of dirty gases going back in my motor. you can remove smog accesories with the tweecer correct?

 

A 302 mustang computer will run a 351 no problem using 19lb injectors, my truck has been running that way for years. What future plans do you have that will require bigger injectors. A tweecer is a great tuning tool for a high performance motor but it's not necessary or cost effective to remove or disable smog components, there are other free or low cost ways to get what you want.

 

how can i accomplish that

 

The whole thermactor system can be eliminated, all you need to do is keep the TAB and TAD solenoids electrically plugged in, all other plumbing and vacuum lines can be removed. There are simple EGR eliminator plugs available, but this will cause a code to be set in the computer, you'll just have to ignore it.

 

Hey dude, do you have a diagram of how to do that and what it looks like? I'd like to "clean" up my engine compartment as well. The stock look is to cluttered for me.

 

Are you talking about removing the Theractor system or the EGR eliminator plugs?

 

will the code cause any trouble?

 

Disabling the EGR may result in a some loss of power and milage, and could make the motor detonation prone depending upon exactly how you disable it.

 

For the same pulse width and same fuel pressure, an injector with a higher flow rating will flow more fuel than one with a smaller flow rating. The actual amount the fuel flow increased is the difference in the ratings minus any delay time in opening the injector.

For a rough example, if a 10ms pulse width is required at idle with a 10 lb/hr injector, then a 20 lb/hr injector would require somewhere in the 5ms range at the same idle condition.

 

so is there any safe way to remove the egr valve or not with out the tweecer?

 

Have a look at the EGR delete kits at goracing.com and go for it.

 

im looking for proven results. I have already seen a few kits and read numerous threads listing poor resulst with kits of that nature. has any one had any first hand experience with them? and if I were to use the tweecer I would not run into these same problems?