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Mods : Next step(s)

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jimmybosox

15+ Year Contributor
98
0
Jul 1, 2004
Columbus, Wisconsin
Looking for some advice from those of you who have been there before.

I'll save you the trouble of checking my profile.

97 TSi AWD Turbo

K&N cone air filter
Extreme PSI intake pipe
Dave Brody pipe from the stock intercooler
1G BOV - uncrushed
Hallman MBC - 15 psi
After market boost gauge
HID Tuning 3" downpipe, 3" high flow cat, 3" cat-back


Everything else is stock. Trying to follow the upgrade sequence from here and over at Buschur as closely as possible.

My next planned mods are a Walbro 255 (already purchased), AFPR (probably the $155 bolt on from IE), SAFC 2, and a wideband (PLX?)

Assuming I don't have the money for all 4 right now, is it a good idea to install these individually? If so, which ones and in which order?

Is there a significant difference in functionality between the AFC, SAFC and SAFC II? Pros and cons of each? Are these all universal, or do I need to find one specifically for my car?

Am I right in thinking that I will be abe to do minor tuning wth just the SAFC and wideband? Do I need anything else? (palm, logger, computer, software, tools)

What make/model of wideband is the best bang for the buck? They're all pretty pricey, so I want to buy the right one the first time.

Lastly, what kind of performance increase can I expect from tuning without upgrading the turbo? The car runs pretty nicely as-is. Of course, you don't know what you're missing, right? She's no race car, but she's quick and has some power. Nice daily driver.

I don't plan to get into the 2nd stage mods. Possibly an upgraded turbo and clutch if/when mine fail, but not planned.

Thanks in advance for your help.

Jimmy
 
You should get an aftermarket boost gauge first and a datalogger so you can see what's happening inside your engine. I would feel kind of naked without those two.
 
dont install the FP without the AFPR. I would get the Wideband then the SAFC2

the SAFC2 is best because it has 16 points of adjustment the SAFC1 only has 12, so you can better fine tune it with the newer one. It is universal but in the manual it tells you how to do it for an Eclipse.

with a wideband, and logger you can probably tune your SAFC2 damn well...but nothing beats a dyno to see if the adjustments you made really did help or cripple your car.

i always liked the AEM wideband i know a few people how have them and it works great. They have the digital and LED light on the same gauge.
jimmybosox said:
Looking for some advice from those of you who have been there before.

I'll save you the trouble of checking my profile.

97 TSi AWD Turbo

K&N cone air filter
Extreme PSI intake pipe
Dave Brody pipe from the stock intercooler
1G BOV - uncrushed
Hallman MBC - 15 psi
HID Tuning 3" downpipe, 3" high flow cat, 3" cat-back

Everything else is stock. Trying to follow the upgrade sequence from here and over at Buschur as closely as possible.

My next planned mods are a Walbro 255 (already purchased), AFPR (probably the $155 bolt on from IE), SAFC 2, and a wideband (PLX?)

Assuming I don't have the money for all 4 right now, is it a good idea to install these individually? If so, which ones and in which order?

Is there a significant difference in functionality between the AFC, SAFC and SAFC II? Pros and cons of each? Are these all universal, or do I need to find one specifically for my car?

Am I right in thinking that I will be abe to do minor tuning wth just the SAFC and wideband? Do I need anything else? (palm, logger, computer, software, tools)

What make/model of wideband is the best bang for the buck? They're all pretty pricey, so I want to buy the right one the first time.

Lastly, what kind of performance increase can I expect from tuning without upgrading the turbo? The car runs pretty nicely as-is. Of course, you don't know what you're missing, right? She's no race car, but she's quick and has some power. Nice daily driver.

I don't plan to get into the 2nd stage mods. Possibly an upgraded turbo and clutch if/when mine fail, but not planned.

Thanks in advance for your help.

Jimmy
 
You can install the FP without the AFPR, but you run the risk of overruning your stock unit (causing you to run rich, and lowers your performance/gas mileage). I would suggest is that you don't need a wideband yet, and the AEM isn't fully utilized until the readouts can be logged for analysis later( for the AEM you need a DSMlink or a standalone) unless you know your A/F ratio is out of whack. You deffinately need a logger of some sort. For the best performance, do the fuel pump rewire listed in the tech section, or on Vfaq, otherwise you aren't getting the most out of your pump.
 
desertspyder said:
You should get an aftermarket boost gauge first and a datalogger so you can see what's happening inside your engine. I would feel kind of naked without those two.

Whoops - forgot to list that I do have an after market boost gauge. (fixed my first post)

An suggestions on a data logger that is good in both price and functionality?
 
If you are planning on putting over 660 ingectors, and running higher then a evo3 16G turbo then I would go with a DSMLink. But if not then go with the SAFC II. If you go with the DSMLink then use a laptop, or a palm m125 is pretty good, also if you get the DSMLink then you need your ecu upgraded to an eprom ecu if its not already an eprom ecu.
 
Thanks for the responses guys. Very helpful.

I had looked at DSMLink a little and it looks like it's overkill for where I plan to end up with my mods. Like I said, I have no plans to go beyond the stage 1 upgrade sequence.

So it sounds like I have to have a logger..again, any suggestions?

And to make sure I understand, the fuel pump and AFPR can be installed together and I will see some performance increase at that point? Or wll I not see any real increase in performance until I tune it?
 
I'm surprised nobody has mentioned anytyhing about this yet, but if you are going to be sticking with stage one and you do not plan on changing from the T25 unless it dies out on ya, I would suggest selling your 255 and just getting a 190. Anybody who objects to this suggestion please let ME know also, but the 190 is already going to be flowing out a significant amount more than the stock pump, and you for sure arn't going to be raising your boost above 16. Even when you get all your fuel controllers in, remember, the T25 isn't quite legendary for it's performance :/ But I would suggest going with a 190, that way you for sure won't be overrunning your injectors.
Also last question, you say you have some hard intercooler pipes from the stock intercooler...which pipes are you talking about? The upper pipes that connect to the throttle body or the lower j-pipe that connects to the turbo?
You're pretty much headin in the same direction I did when I got my car, minus the fuel setup at first. I was really pleased with everything. I just recently switched out the turbo, so we'll see how everything works together. Good luck man.

Ben :talon:
 
Also last question, you say you have some hard intercooler pipes from the stock intercooler...which pipes are you talking about? The upper pipes that connect to the throttle body or the lower j-pipe that connects to the turbo?

I have a pipe from Dave Brody (actually two pipes and a coupler) that runs from the side stock intercooler, under the fuse box and connects to the braided (nylon?) hose that goes to the throttle body elbow. Its the one my BOV is attached to.

I thought the same thing about the fuel pump, but a guy at Buschur suggested the 255. Besides, I got it for $70 in the classfieds. Do you think it will be too much for my stock injectors? I only ask because the stage 1 sequence doesn't mention anything about upgrading injectors.

Thanks for the logger link. Looks like just the ticket.
 
If you are installing most of the mod by yourself then i would do each one seperately. The reason for this is if anything goes wrong then you will know exactly what it is. If you put everything on at once, you might have a problem and have to go through a bunch of different tihng to see what the problem is. Good luck
 
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