i bought this 1987 VW Golf so i can park the s10 to take the engine and wiring harness out of it to put in my trekker. i also wanted something that got better mpg then the truck to drive to and from work. has crappy factory steel wheels on it at the moment
until i get the one cracked wheel fixed of the 4 that came with the car
passed the emission test with no problems (once i got a catalytic converter on it!)
thanks robb. so far i am really happy with it. the 1st tank of gas turned in 31 mpg, but that included getting the driveability issues worked out. just filled it up again this morning and it turned in almost 36 mpg here are a couple pics of the interior. still have some cleaning to do, but overall it is in really good shape for being as old as it is.
Last Edit: Oct 13, 2014 9:00:00 GMT -8 by msrwerks
ok. an update on the white car... it was wrecked right after changing the wheels and tires on it. all of the time and effort down the drain it seemed until craigs list came through once again with a 1985 gti that most definitely needed to head to the wrecking yard. swapped out the whole interior, engine, transmission, suspension, wheels and tires and it runs and drives like it should. not being able to leave well enough alone i decided to convert it to the megasquirt stand alone engine management system for 2 reasons... - just to see if i could - practice in setting it up and getting something running so when i put megasquirt into my trekker it will be MUCH easier getting it going then trying to figure it out on something that has never run before. here is the readers digest version of what it took to get it converted from the bosch cis-e injection...
setup i have planned... wasted spark, crank trigger, G60 injectors, wide band o2 sensor. i want to bring the engine management into this decade at least
i started with an automatic passat throttle body, but it will not clear the fuel rail. if the tps was mounted on top of the throttle body, it would work nicely. i know and i have read that you do not really need the tps for megasquirt, but i figured it can not hurt. so i made an adapter plate for the 70mm mustang throttle body just like here: forums.vwvortex.com/zer...92520
started with this from onlinemetals.com 1" thick aluminum stock
drilled holes to mount to the intake
drilled and threaded mustang throttle body holes
installed on "dummy" engine after taking to the machine shop to flatten both sides of it
the collection of parts needed for the conversion:
collected parts so far... throttle body, tps and pigtail
temp sensor and cold start valve block off plate
1/4" to 5/16" fittings and hose and fittings to hook to factory supply and return lines
digi fuel rail (with junk injectors for fitting purposes)
MS wiring harness from DIYautotune.com
communication to the MS box
air sensor with pigtail
one steel and one aluminum bung for putting the air sensor in
wide band o2 sensor
jimstim so i can figure some things out before i try to tune
wiring, fuses and relays for power and protection
coil for wasted spark (still waiting on the pigtail for this from napa)
got the MS box from spitfireefi.com...
also received the pigtail for the coil pack as well...
and the it seems to "run" the jimstim just fine too
got the IAT sensor collar welded to the aluminum air tube the cone filter will go on.
crank shaft trigger...
picture of the relocated coil...
CTS relocated to the factory position (drilled out and re-threaded)
common ground for the megasquirt box AND the wideband o2 sensor is a MUST!!
final installation picture...
getting it all running correctly on the local dyno
final impressions... my GOSH! why didnt i do this sooner??!! the throttle response is incredible. starts, idles and runs smooth on even the coldest of mornings. (single digits even here in texas this year!) idle is controlled by the computer instead of vacuum. and still gets low 30's mpg going to and from work.
ok, back to the trekker
Last Edit: Feb 8, 2010 19:59:47 GMT -8 by msrwerks
hi corey, yes. that is how it is tuned. you plug the laptop in and can change ANY parameter of how it runs. fuel tables, air fuel ratio, ignition timing, deaccel fuel shut off, idle speed, idle boost for a/c, altitude compensation, nitrous control, turbo, cooling fan on / off etc... i have the MS2extra box which does all of this stuff and a whole lot more. you can tune in stages and they are all saved on the laptop. the current tune resides in the MS box inside the vehicle. 1st thing you have to figure out is what you want it to control. just fuel you can save some $ and get a MS1 box. fuel, spark and everything else above you need the MS2extra box.
believe it or not, the older laptops with a built in serial port work the best! i had that dell in the pic with the usb to serial converter and i had nothing but problems with it. so i got an old beat up thinkpad off craigs list for <$100 and have not had a problem out of it at all! it has windows xp, but the tuning software will work on anything all the way back to windows 95 i think. diyautotune.com has all of the MS stuff you need in one stop. another place is glensgarage.com