http://www.extremepsi.com/store/customer/product.php?productid=20768&cat=1480&page=1
I searched around here for info on this and really all I found was "No one has really had any experience with the thing yet but it looks promising." but that was back in '06 so I was HOPING that someone has toyed with it on the 420A since then?

Basically I need a fuel management fix because my C2's are causing my ECU to nearly flood the engine with fuel - lowering my fuel mileage from 21mpg to 14.25mpg! I'm tryna get back up to 20mpg again....is this likely to do what I want it to?

Also, would this just go to waste when I upgraded the fuel system (not sure what to yet) even more to accomodate 15 or more PSI from my 20g turbo?

Right now I'm trying to find a "cheap" fuel management fix that will drastically raise my mileage back to normal BUT not be obsolete when it comes time to upgrade the fuel system even more...your thoughts and suggestions are welcome! thanks

-MIKE-

Stroked 2.2L

Not being an ass or anything, but you just got to search around on here b/c the information is there.

Here is a write-up on the Megasquirt-n-spark installation:

http://www.2gnt.com/index.php?d=MSnS%20INSTALL%20(parts/wiring%20only!)

These are some sites where you can get megasquirt from and have good tech support for the 420a.

http://www.rs-autosport.net/catalog/index.php?cPath=9&osCsid=62027e400d99119add33d6a0aee23853

http://www.symtechlabs.com/catalog/product_info.php?cPath=22_23&products_id=32

- 98 Eclipse rs turbo

Mike D
-------------------------------------------------------------------------------------------------

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

I didnt respond because I am tired of some people playing the undercutting game. I make them but its a 2 week wait and if your in a hurry, i am not interested.

Terry

http://www.rs-autosport.net/catalog/index.php?cPath=9

http://www.diyautotune.com/catalog/megasquirt-complete-c-25.html?osCsid=20f9d1b0c95d50a2aa60f0362eaa0cf8

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

Captain Caveman

96 RS Turbo 11.414 @ 119.62 MSNS, Crower 2 NA cams, BW366, 10.5 comp, UDP, 60mm TB, W/A intercooler, 3.55 tranny 567.9whp 430tq
97 RS NA 13.188 @ 103.87 MSnS powered 12.5 comp, Crower 3's and 219.4whp with 175tq
98 RS DD 12.5 comp on stock ECU, LTH, Crower 2's, Koni, GC, Hypercoil, DG hats
99 OZ 5sp Stocker 15.856 @ 85.97
99 GS stocker auto 17.7@77mph!

wiki home page:http://www.2gnt.com/index.php?d=bullettdsm

Ok one other question: I remember reading somewhere that the MS requires a 1:1 FPR, is this true or is that just a recommendation and I could go with a 7:1 or 10:10 FPR? I was thinking closer to 7:1 myself for running 16psi at peak periods and 10psi daily - it seems to me that a 1:1 ratio just wouldn't supply enough fuel pressure?

______________________________
If a sentence found online has 35% misspellings or greater and includes at least two racially charged expletives, chances are it is a YouTube comment.

'95 Eclipse TurboGS (garage deco)
'95 TSi AWD (restoring a survivor)
'97 Talon ESi-T (poor impulse control)
'99 Eclipse RS-T (daily beater)
'13 Evo X (mostly stock)
'17 Sienna (Middle Aged Dad Mobile)



Factory Service Manuals: http://nawdu.de/files/

Hmm...I was thinking I should go with 550cc injectors based on a formula I found in the archives here - for running 325hp aka full boost (16psi in my case) every day. But it seems to me that I would get too much fuel then when I lowered the boost to 10psi - which is what I plan to run it at daily...will I still run rich doing this or will MS be able to adjust things accordingly when I simply switch from low to high boost?

The formula was something like:

Hp x .525 x 10.5
------------------------------------------------------------------
# of Injectors

Then it proceeded to say that you usually onlt want to run your injectors at 80% capacity so to take the number you get above and divide it by 0.85...using that formula and 300hp (what I expect to get at a bare minimum with 16psi and a heavily modified engine) I get 486cc injectors required...well they only make 450 and 550 so thats why I was thinking 550, is that a wise choice in this case?

There are multiple ways of controlling fuel flow. Mechanical means include FMU's and S-FMU's. Electronic means include varying the pulse width going to the injectors using a variety of electronic controllers, including Megasquirt. For the most part Megasquirt can control very large injectors with ease, just by adjusting the injector pulsewidth. Sometimes MS can't handle extraordinarily large injectors (1200cc/min+) since its PW resolution is only so high; but there are work-arounds, including a high-res code variant. While using electronic means of fuel flow control 1:1 AFPR's are simply used to help control fuel flow under vacuum and to balance the fuel pressure against boost pressure (hence the 1:1 ratio).

-----------------------------------------

-Paul

Service Manuals and Guides

Ah ok, that helps...thanks for clearing that up for me, 550cc it is then since it is widely variable with MS anyways