Suggestions to complement my Supercharger upgrade

[Blown3000]

I.B. You didn't mention what the difficultly and complexity level of the mods. Would I be correct in assuming that you did the mods yourself?

[ibsorgn]

I.B. You didn't mention what the difficultly and complexity level of the mods. Would I be correct in assuming that you did the mods yourself?

To answer your last question first, Yes.. Difficulty and complexity on a scale of 10, I would say 5. Not so much concerning wrenching but more for finding the answers.

Simplest problem to resolve is swapping out the NA ECU to a TT ECU. I believe you have a manual transmission so the conversion is very easy. If you choose a 1st gen, and I believe you stated that you own a 95 SL, so you don't have to replace the wiring harness. Because I'm old, fat and stiff, the less time I spend in the cabin and under the dash the better, so the 1st gen swap was ideal for me. There are other ECU swaps but they involve more work and body flexibility.
In a nut shell the ECU swap involves disconnecting a few wires adding another O2 signal, wiring in a thermo switch and relays to control the radiator fans and adding resistors to control the low impedance injectors. Sounds like a lot of wiring but it is pretty straight forward and relatively easy.
Upgrading the fuel system is comparatively simple however the intake manifold and SC must come off to replace the injectors and of course to wire in the resistors. Not much of a challenge here just a lot of wrenching. Don't just replace the TT injectors without having them rebuilt unless of course you purchased new ones. Although the stock fuel regulator is sufficient I moved to an adjustable one which would allow me to play around with the fuel pressure which will give you another tuning aid. Besides AFRs are not that costly. Be sure to pull the FMU as you will no longer need it!
Lastly to handle the demands of the larger injectors you will need to replace the stock NA fuel pump rated around 160 lph, to a higher volume pump around 250lph. Most move to Denso or Walbro I just purchased a Eclipse GST replacement pump from Advanced Auto which was nearly a drop in. I encountered tremendous problems getting the lines unhooked. Don't know whether it was just my car but I read that others had difficulties getting theirs out too.

I didn't hotwire my pump as I didn't believe my build called for it but you can if you wish.

I have a few pixs of various mods if you need visuals.

We can discuss the SAFC at a later date as I'm getting writer's cramp.

[3000gttom]

depending on whether you have a cali spec or fed spec car, it may be cheaper to go with a 99 flashable ecu than converting to first gen

[Blown3000]

depending on whether you have a cali spec or fed spec car, it may be cheaper to go with a 99 flashable ecu than converting to first gen

My Car is Federal Spec. You appear to be big on this flashable ecu. How about detailing out the installation requirements and associated costs as Sorgn did as I would sure enjoy comparing complexity of work and costs. I just can't help but to think your solution might be more costly and difficult but I sure might not be seeing things properly. Also have you done this type of upgrade?

[NickS VR4]

My Car is Federal Spec. You appear to be big on this flashable ecu. How about detailing out the installation requirements and associated costs as Sorgn did as I would sure enjoy comparing complexity of work and costs. I just can't help but to think your solution might be more costly and difficult but I sure might not be seeing things properly. Also have you done this type of upgrade?

You are not a very friendly person and clearly don't like hearing things that you don't want to hear.

[Blown3000]

You are not a very friendly person and clearly don't like hearing things that you don't want to hear.

Boy, you lost me on that reply! What is it that I don't like hearing? I'm all ears for any ideas, that's why I started this post. 3000GTTom has giving me lots of food for thought. I respect his opinions and ideas. Like to have details or do you interpret that question as "things I'm not wanting to hear"?

[3000gttom]

you were kind of rude and clearly have not looked at all at flashable ecu's.

they are stock 98-99 ecu's, all you probably need is the wiring conversion and there are sellers that make the harnesses, it is likely easier to do than switching to a first gen with a cam angle sensor and whatever stuff they used,

and you get way more control over both timing and fuel, not just fuel, and you get launch control, you can set the check engine light to flash when you get engine knock, you'd have full logging support,

i have a 99 so there was no conversion needed for me, but seriously look into it you will probably save time and money with a flashable over a first gen ecu,

not to mention you can pass inspection because there is no safc keeping your CEL on

there are tons of threads on this just give it a search

[Blown3000]

you were kind of rude and clearly have not looked at all at flashable ecu's.

Just because I ask a question Don't make the assumption that I "Clearly have not looked" I have been doing a little research and what I had found was, the ECUs were running around $500 plus I need a Tactrix cable and was just not unable to get a clear picture as to my wiring harness and other supporting items. In addition, I assumed that I would still need larger injectors, fuel pump, resistor pack, software etc. But due to the fuzzy picture I was getting I thought that I would ask you as you had mentioned flashable ECUs as a solution several times. What about the total cost? Sure would like to compare all the items and their costs against I.B.Sorgn's inventory. In addition, what is a guessimate for tuning costs and the flash as I had read about guys spenting a grand and more on tuning? BTW, I didn't get the impression that a SAFC was required for a 1gen ECU swap. Does a SAFC trigger a CEL?
I'm still at a loss over this rudeness thing, maybe I just got some thick skin or some folks have some very thin skin. Maybe someone can point out were I'm going wrong?

[3000gttom]

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 think the clone ecu's are 400$ but you will only need an n/a 98-99 ecu since you dont need wastegate control which may only be 150-200$, the tactrix is like 170$, evoscan is 25$, adapter harness 200$ maybe ??

the best way to get an accurate figure is to ask the sellers what you need and how much it is, they are all on this forum and shouldnt be hard to get a hold of

[3000gttom]

http://www.3sgto.org/f62/original-vr...-ecu-8761.html

clone ecu plus adapter harness for 625, but you probably just need an n/a ecu because these clones are equipped with wastegate control for the turbos, still best thing to do is ask (could probably ask the maker of that thread)