Suggestions to complement my Supercharger upgrade

[ibsorgn]

well a first gen tt ecu is tuned for turbos, its too lean for the low rpm boosting of a sc, without a safc or other fuel controller you will ping the engine to death just at cruising rpms, and as far as i know with an safc you will have a CEL at all times so you cannot pass inspection, you will need to tune regardless of what path you take, the first gen just handicaps you to basic tuning

I run a 1st gen ECU with a supercharger set up and have done so for over 3 years. I have done all the research and subsequent wrenching myself so I speak from personal experience.
1.) You will not run lean, in fact you will run rich at high throttle operation
2.) At low throttle I've run my SAFC with negative values partly because to increase my fuel economy and mostly because the ECU favored the rich AFs
3). At cruising speed, about 2700rpms, I detect no knock
4). I get no CEL light with my SAFC
5) The 1st gen ECU gives you a stock, unchangable tune, which favors rich AFs for engine safety which supports manufacture warrantee.

After installing my 1st gen ECU along with the supporting fuel system, I felt that the tune was ideal (however slightly rich) for my mods. Engine was very peppy and very little knock was detected.
If one can be satisfied with a stock tune there is absolutely no need to go to the expense of a later model flashable ECU unless you have plans for the fuel system, more aggressive tuning etc.

Look, supercharging is just another form of forced induction, I guess you can say the ECU is tuned for turbos but that's like saying bears shit in the woods, Bottom line is the ECU accepts, air flow, rpm, knock, O2, temp signals etc to pull values from fuel and timing matrices to operate the motor, I don't think it cares how the air is pushed/pulled into the motor. Maybe if more air is being feed into the motor that what the ECU is programmed for, that could be a problem, but IMHO, you stay below one atmosphere your not going to have a problem.

BTW Blown, I intrepreted nothing you said as rude or unfriendly, those that did are just ultra-sensetive Nancy boys.

[Blackmount]

i want pics of said supercharger setup

[Blown3000]

i want pics of said supercharger setup

I'm on temporary assignment for the summer but I.B.Sorgn did a complete write up and published it on Stealth316.com. I pretty much followed his road map. Hes got to have pixs as his write-up is fully illustrated.

[3000gttom]

I run a 1st gen ECU with a supercharger set up and have done so for over 3 years. I have done all the research and subsequent wrenching myself so I speak from personal experience.
1.) You will not run lean, in fact you will run rich at high throttle operation
2.) At low throttle I've run my SAFC with negative values partly because to increase my fuel economy and mostly because the ECU favored the rich AFs
3). At cruising speed, about 2700rpms, I detect no knock
4). I get no CEL light with my SAFC
5) The 1st gen ECU gives you a stock, unchangable tune, which favors rich AFs for engine safety which supports manufacture warrantee.

After installing my 1st gen ECU along with the supporting fuel system, I felt that the tune was ideal (however slightly rich) for my mods. Engine was very peppy and very little knock was detected.
If one can be satisfied with a stock tune there is absolutely no need to go to the expense of a later model flashable ECU unless you have plans for the fuel system, more aggressive tuning etc.

Look, supercharging is just another form of forced induction, I guess you can say the ECU is tuned for turbos but that's like saying bears shit in the woods, Bottom line is the ECU accepts, air flow, rpm, knock, O2, temp signals etc to pull values from fuel and timing matrices to operate the motor, I don't think it cares how the air is pushed/pulled into the motor. Maybe if more air is being feed into the motor that what the ECU is programmed for, that could be a problem, but IMHO, you stay below one atmosphere your not going to have a problem.

BTW Blown, I intrepreted nothing you said as rude or unfriendly, those that did are just ultra-sensetive Nancy boys.

you're looking at it too broad,

1) at high load and high rpm's you will be rich yes, at low rpm's high load you will be lean
2)low throttle without the controller will be corrected just driving because it will be in closed loop
3)idk about 5 speed gearing because i have atx but the crossover point it at 2500 rpm, the ecu is programmed to have about 13 to 1 afr at 2000rpm and it richens at 2500rpm to 12 to 1 because thats when the turbos spool, i know that i cruise in the low 2k range a lot and that would definately worry me
4)i dont know from experience but ive seen a lot of threads saying that the safc throws the code and wont pass inspection(definitely something to look into if you need to pass inspection)
5)anywhere that the stock tt hits boost it is tuned at 12-1 or lower afr but below 2500rpm is an area that you may want to worry about, you cant just say that in general the ecu stays rich, there is more detail to look at

blown3k the bottom line is, if you want to follow his footsteps, go for it, you know exactly where you will end up, if you think you want to try a more reliable, more powerful build, then consider spending just a tiny bit more money and try a flashable ecu,

otherwise, definitely use that wmi to keep things healthy in the low rpm's

[ibsorgn]

3000GTTOM - Do you mind me asking what is your background and experience regarding this Thread? Would appreciate knowing how you arrived at these statements?

[3000gttom]

tt fuel map.jpg

this is the map that the ecu uses to determine how much fuel to use

it's not like i'm making crazy claims, its not hard to understand

[ibsorgn]

tt fuel map.jpg

this is the map that the ecu uses to determine how much fuel to use

it's not like i'm making crazy claims, its not hard to understand

3000GTTOM - I read your May 1st Threat about "starting a build". The fact of the matter is you have no experience or background on these cars much less any force induction firsthand knowledge, and that's why you keep dodging questions concerning your experience and background. You're kinda of like a blind man wanting to help a sighted person cross a street. Your goal is noble but you need to let folks know that you can't see (no real "hands on" experience). Unlike you, and many others like you, I feel very uncomfortable commenting on a subject unless I felt that I was qualified (real world experience). This apparently doesn't bother you but you should at least let the reader know where you're coming from and not let them assume your speaking from an experienced position.
What I've stated through out this thread is based on my personal experiences, not what I've read or overheard. If you ever decide to get your hands dirty you may find that the real world is quite different from, giving you the benefit of the doubt, "the theoretical".

[ibsorgn]

i want pics of said supercharger setup

What are you wanting to see? I assume you are requesting not demanding?

[3000gttom]

3000GTTOM - I read your May 1st Threat about "starting a build". The fact of the matter is you have no experience or background on these cars much less any force induction firsthand knowledge, and that's why you keep dodging questions concerning your experience and background. You're kinda of like a blind man wanting to help a sighted person cross a street. Your goal is noble but you need to let folks know that you can't see (no real "hands on" experience). Unlike you, and many others like you, I feel very uncomfortable commenting on a subject unless I felt that I was qualified (real world experience). This apparently doesn't bother you but you should at least let the reader know where you're coming from and not let them assume your speaking from an experienced position.
What I've stated through out this thread is based on my personal experiences, not what I've read or overheard. If you ever decide to get your hands dirty you may find that the real world is quite different from, giving you the benefit of the doubt, "the theoretical".

i really could care less if you attack me personally, even if not a single statement of mine is credible, thats still the fuel map that the tt ecu uses, ill let him decide if its ok to supercharge with because its not my car that might be damaged, lets not forget that you are running the ecu with a fuel controller, so how about you take that safc off since your all about real world and log what happens, maybe it will be safe maybe not

either way, im gonna be absolutely sure that what i do is safe in the theoretical world before i try in the real world

[ibsorgn]

i really could care less if you attack me personally, even if not a single statement of mine is credible, thats still the fuel map that the tt ecu uses, ill let him decide if its ok to supercharge with because its not my car that might be damaged, lets not forget that you are running the ecu with a fuel controller, so how about you take that safc off since your all about real world and log what happens, maybe it will be safe maybe not

either way, im gonna be absolutely sure that what i do is safe in the theoretical world before i try in the real world

Whatever - you got too thick a skull to deal with.