I am suspecting the pressure sensor is bad in the $hit box. With that thing getting harder and harder to find I was thinking MS might be the way to go.
It seems that the money part is pretty close and reading the archives I think I have accses to everything I need.
I just wanted some opinions, pro's and con's, etc...
what do you guy's think??
With language like that you dont deserve the privilege of owning a 914. Come on man, show some respect...
Do a search on megasquirt and you'll find a good amount of ppl on here with successful installs.
I guess for the purpose of this thread we are comparing replacing an MPS with going to MS.
PROs:
custom standalone engine management - it just sounds cool, bragging rights
education - you will learn more about engine mangement here than you would have ever thought
power - with enough dyno time and full spark control you shuold be able to squeeze out a few ponies, especially coming from a problematic FI system
save $$ - if you are converting from stock FI you already have most of the parts. expect to buy the following parts: MS II V.3.0, relay board, stim, relay cable. about $430 done right plus extras. Innovative LC-1 WB02 sensor ($199 with sensor)
CONS:
time
patience
stupidity risk during build and tuning. in the most extreme case it is possible to destroy your engine if you rush things or make the worst mistakes.
good luck
The chief downside is you have to do a fair bit of rewiring to use MS. The stock MS enclosure isn't waterproof, so you have to mount it in the cabin or get creative. Do NOT mount it in the rear trunk, as the trunk gets too hot. If you've never dealt with EFI much, there's a non-trivial learning curve to getting MS to work well.
The benefits are: no more MPS, and tunability. If you're happy with the stock engine, then the latter is fairly unimportant. The former, however, is getting more and more important as the supply of MPSes gets smaller. If someone manages to start making replacement parts for it, then even the MPS advantage disappears.
It's not yet been proven, but I also suspect the D-Jet system isn't optimal, and you may be able to get a much more efficient tune using MS.
QUOTE (Jeff Bowlsby @ Mar 27 2006, 09:57 AM) |
With language like that you dont deserve the privilege of owning a 914. Come on man, show some respect... |
That was the name of one of my old cars. A blue Geo metro that was running on 1&1/2 cylinders(burnt valves). I HATED that car. I would rutinely sit at stop lights and day dream about reving it till the engine blew! That myfriend, was a $hit box!
QUOTE (lapuwali @ Mar 27 2006, 10:22 AM) |
The chief downside is you have to do a fair bit of rewiring to use MS. The stock MS enclosure isn't waterproof, so you have to mount it in the cabin or get creative. Do NOT mount it in the rear trunk, as the trunk gets too hot. If you've never dealt with EFI much, there's a non-trivial learning curve to getting MS to work well. The benefits are: no more MPS, and tunability. If you're happy with the stock engine, then the latter is fairly unimportant. The former, however, is getting more and more important as the supply of MPSes gets smaller. If someone manages to start making replacement parts for it, then even the MPS advantage disappears. It's not yet been proven, but I also suspect the D-Jet system isn't optimal, and you may be able to get a much more efficient tune using MS. |
QUOTE (toon1 @ Mar 27 2006, 02:03 PM) |
The car is running right now so there are no time consraints. What is the first thing to start with? currently I have: 2.0 air box/runners/T body 4 good 1.7 injectors a working/rinning 1.7 FI system |
QUOTE (Mueller @ Mar 27 2006, 01:13 PM) | ||
spend the $12 per injector and get the 1.7 injectors tested (do a search here, it was discussed in the last few days) what heads do you plan on running? if 2.0 heads, keep the 2.0 parts.... if 1.7/1.8 heads, the 1.7 parts fit perfect, you can adapt the 2.0 plenum but it'll be off somewhat and the hoses are a tad different ID (1.8/2.0 intake pipes the same dia., but different shape) |
for Mueller
can I retro this to a 1.7?
QUOTE (toon1 @ Mar 27 2006, 05:07 PM) |
for Mueller can I retro this to a 1.7? |
I have 2 1.7L mps's...one is NOS.
if you give me 35 bucks + shipping, i'll box it and send it to you.
b
QUOTE (bd1308 @ Mar 27 2006, 07:38 PM) |
I have 2 1.7L mps's...one is NOS. if you give me 35 bucks + shipping, i'll box it and send it to you. b |
a member here had one sitting in a box in his desk for a long time.
I have two, the one up for sale is a *WORKING* mps with a good diaphragm.
b
QUOTE (Mueller @ Mar 27 2006, 06:35 PM) | ||
yep.....you'll want to get 1.8 runners to match the 1.7 heads....1.7 runners will work, it's just a matter of getting the little hose between the plenum and the runners to fit/seal |
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