My MicroSquirt Install |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
My MicroSquirt Install |
McMark |
Jul 20 2008, 05:00 PM
Post
#1
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I'm installing a MicroSquirt system.
This thread IS NOT A MS/SDS/Carb DEBATE! If you don't like MS please leave. I'm tired of the endless, worthless debate. Anyway, now on the the fun stuff! I am using the TPS off of a Volvo 850 because it's a Bosch sensor (I like sticking with OEM manufacturers when possible), fits the D-shaft throttle and is appropriate for MS. I made the adapter plate today. Attached image(s) |
McMark |
Jul 20 2008, 05:10 PM
Post
#2
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Here is the wiring harness I had Jeff Keyzer make me. We sourced all the correct, uncrimped connectors so each connector could be attached directly to the harness wires.
The MicroSquirt unit is tiny, weatherproof, robotically soldered using surface mount components, and shielded from EMF. It was originally designed for motorcycles, but I think in our case, it's a much more appropriate choice than your standard MegaSquirt. The injector on the left is a custom made high-impedance injector that works perfectly in our manifolds with stock hold-downs, stock connectors, and will allow use of the stock fuel rails. No resistor packs necessary. (IMG:style_emoticons/default/thumb3d.gif) |
Gint |
Jul 20 2008, 05:33 PM
Post
#3
|
Mike Ginter Group: Admin Posts: 16,093 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Giddyup! Right on Mark. Microsquirt? Never heard of it. Price? Are the connectors readily available and not unobtainium? Where do those "custom made high-impedance" injectors come from? Price?
Screw all of that. When you getting working I might just be the first in line. (IMG:style_emoticons/default/laugh.gif) |
r_towle |
Jul 20 2008, 05:36 PM
Post
#4
|
Custom Member Group: Members Posts: 24,624 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
This looks very interesting.
Is the microsquirt just an off the shelf unit? Injectors? also off the shelf? Looks like a fun project and I would really love the hear the results, how easy it is to tune, and how much of a cam it may support.... Rich |
ejm |
Jul 20 2008, 05:42 PM
Post
#5
|
I can see the light at the end of the tunnel Group: Members Posts: 2,702 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
|
ericread |
Jul 20 2008, 06:00 PM
Post
#6
|
The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
How about some background information?
4-Cylinder? 2.0L Engine? Year? Approximate cost for your conversion? Sorry, but I am really interested in what the future will bring to our cars, and this information would really be helpful. What kind of tuning problems did you experience? And what is your anticipated gas mileage? If this provides a really efficient motor that can be variably tuned for mileage and for performance, that would be really cool. Thanks in advance. |
McMark |
Jul 20 2008, 06:01 PM
Post
#7
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
This setup will be expensive. But doing it right is usually not cheap.
MicroSquirt: $400 LC-1 WB-O2: $200 MAP: $64 TPS: $75 TPS Connector: $35 (this connector had to come from europe) (IMG:style_emoticons/default/sad.gif) Custom Injectors: $85 each, $340 for four Wiring Harness: price is not set but more than $400 Injector Connectors: $12 each, $48 for four I think when everything is done, it'll be around $2000 for the bolt in setup. I'm keeping drawings of my custom parts so that they can be laser/waterjet cut in the future. Everything will mount in the engine bay, so this will be a no cutting/modifying installation (except O2 sensor bung). Also, if everything goes according to plan, the stock fuel pump/fuel regulator will be used, which will save a significant amount of money and maintain a stock look. |
toon1 |
Jul 20 2008, 06:26 PM
Post
#8
|
Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
Looks good Mark .
|
McMark |
Jul 20 2008, 07:07 PM
Post
#9
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Cold start block off...
MS does cold start enrichment in software and widens the pulse width, so the archaic 'fifth' injector isn't necessary. I will be using the archaic AAR though. (IMG:style_emoticons/default/laugh.gif) So the feed bracket goes on. Attached image(s) |
rick 918-S |
Jul 20 2008, 07:29 PM
Post
#10
|
Hey nice rack! -Celette Group: Members Posts: 20,681 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Nice work Mark! (IMG:style_emoticons/default/popcorn[1].gif)
|
Rick_Eberle |
Jul 20 2008, 07:37 PM
Post
#11
|
Member Group: Members Posts: 390 Joined: 14-January 04 From: Geelong, Australia Member No.: 1,558 |
Looks great! Where are you planning to mount it? Stock location? Is the MAP separate in the MicroSquirt?
|
SirAndy |
Jul 20 2008, 08:04 PM
Post
#12
|
Resident German Group: Admin Posts: 41,815 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
schweet! (IMG:style_emoticons/default/smilie_pokal.gif)
how about using these for some extra low end torque? (IMG:style_emoticons/default/idea.gif) |
JeffBowlsby |
Jul 20 2008, 08:11 PM
Post
#13
|
914 Wiring Harnesses Group: Members Posts: 8,663 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Yay Mark! (IMG:style_emoticons/default/drooley.gif) Yay Jeff K (IMG:style_emoticons/default/pray.gif)
|
Joe Owensby |
Jul 20 2008, 08:14 PM
Post
#14
|
JoeO Group: Members Posts: 527 Joined: 7-January 06 From: Spartanburg, SC Member No.: 5,385 Region Association: South East States |
Great work. I am thinking of going to one of the aftermarket FI systems for my car, hopefully sometime next year. Looking for a good reliable system that can feed the motor correctly to get maximum drivability, fuel economy on the road, and then preformance. Your approach sounds very interesting. Thanks for sharing. JoeO
|
McMark |
Jul 20 2008, 09:17 PM
Post
#15
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
QUOTE Looks great! Where are you planning to mount it? Stock location? Is the MAP separate in the MicroSquirt? Brain will be in the stock location. MAP sensor is separate on these and I will fab a bracket to mount the MAP sensor in the stock location as well. QUOTE how about using these for some extra low end torque? Not on this motor. This is a stock look setup. (IMG:style_emoticons/default/cool.gif) |
Joe Bob |
Jul 20 2008, 10:25 PM
Post
#16
|
Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Go for it....good luck.
I got the bad news today....my Type I MEGAsquirt motor needs to be torn down.....stooopid freaking head studs are pulling out of the NEW case......arrrgh.... (IMG:style_emoticons/default/headbang.gif) |
mightyohm |
Jul 20 2008, 11:21 PM
Post
#17
|
Advanced Member Group: Benefactors Posts: 2,277 Joined: 16-January 03 From: Seattle, WA Member No.: 162 Region Association: Pacific Northwest |
Nice writeup Mark! I am glad to be involved in such a cool project. (IMG:style_emoticons/default/smile.gif)
|
Elliot Cannon |
Jul 21 2008, 01:20 AM
Post
#18
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
Modern fuel injection is the way to go. My trip to WRC was just over 2000 miles and I averaged 25 miles per gallon with my 3.2. My other car with a 2.2 liter type IV engine with Weber 44idf carbs gets about 18 MPG!!?? Go figure. I'd love to get rid of the Webers and replace them with fuel injection. Keep us informed how this works out for you Mark.
Cheers, Elliot |
james2 |
Jul 21 2008, 06:03 AM
Post
#19
|
Member Group: Members Posts: 97 Joined: 28-June 08 From: Georgia Member No.: 9,225 Region Association: None |
your webers need work, my 56 oval gets 26 mpg with dual DRLAs (IMG:style_emoticons/default/biggrin.gif) ...and runs 12's.
Modern fuel injection is the way to go. My trip to WRC was just over 2000 miles and I averaged 25 miles per gallon with my 3.2. My other car with a 2.2 liter type IV engine with Weber 44idf carbs gets about 18 MPG!!?? Go figure. I'd love to get rid of the Webers and replace them with fuel injection. Keep us informed how this works out for you Mark. Cheers, Elliot |
watsonrx13 |
Jul 21 2008, 06:31 AM
Post
#20
|
Advanced Member Group: Members Posts: 2,735 Joined: 18-February 03 From: Plant City, FL Member No.: 312 Region Association: South East States |
Very nice Mark. I just finished reading Excellence mag this weekend and they have an article about upgrading a '74 911 to a modern EFI system, also a bolt in modification, except adding a bung to the exhaust. The total cost of the system was $1695.
-- Rob |
Lo-Fi Version | Time is now: 28th September 2024 - 12:52 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |