Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

5 Pages V « < 3 4 5  
 Reply to this topicStart new topic
> Aussie 914 Restoration
barrym
post Sep 9 2016, 05:20 PM
Post #81


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
been doing a little work on the throttle body - wanted to move to electronic throttle control - but the Subaru ecu i'm using is cable throttle ...
so, I bought an '07 corolla ECU, a Camry '07 accelerator pedal and a lexus is350 throttle body - all up cost less than $200 shipped to me.
then figured out all the wiring and I have a fully working Drive by wire solution (IMG:style_emoticons/default/smile.gif)

i'll use a TPS out from the throttle body to feed to the Subaru ecu.

this combo will work with any modern Toyota throttle body / pedal combo.



Attached image(s)
Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Sep 9 2016, 06:32 PM
Post #82


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
i'll also add that you have to fool the corolla ecu into thinking its running at operating temp, otherwise it limits amount of throttle opening ... do this by running a 330ohm resistor to the temp sens input & ground, ecu now thinks its running at about 88 deg c.
no other sensors are required for throttle control to work.
I did have to wire up the obd port tho to erase all codes. it still throws a bunch of codes about various sensors not being detected, but doesn't affect the running of the throttle control (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Sep 11 2016, 01:34 AM
Post #83


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
hmm - slight change in plans for the TPS to the Subaru ecu ...

the range outputted from the Toyota throttle body is not matching for the Subaru requirements ...
Subaru needs a range of 0.46v-4.20v
Toyota electronic throttle body outputs 0.79v - 4.00v

so, on the end of the toyo throttle body is a welsh plug - popped this off and have mounted the Subaru tps to the end of the throttle body, its not overly pretty at the moment, just need to fabricate a 'proper' spacer block, but allows me to use the Toyota throttle body, with Subaru tps ...

works perfectly now !

(IMG:style_emoticons/default/biggrin.gif)



Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Oct 11 2016, 04:54 AM
Post #84


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
they say that pictures are worth a thousand words ... so, here you go ...

lots of progress made - the DBW accelerator is working perfectly now with the Subaru TPS bolted to the side of the throttle body ... very happy with that result ...
got the inside of the front end close to being complete - still a few more things to tidy up in there, but all the heavy lifting is done there.
suspension & steering rack installed - fuel systems all done, just need to lay the remaining hoses down the spine to the engine bay - that'll keep for the 'middle' work tho.
anti roll bar & wheel well strengthening plates welded in & sealed up.
additional camber plates for front shock towers installed, well at least one side is.
front struts reconditioned, boge shocks, 22mm torsion bars, boxster calipers & brake lines installed. I used the rebel racing boxster caliper 'kit' and sourced my own calipers. the start of brake lines are fabricated.
battery tray bracket fabricated & installed - just need to weld in an earthing strap bolt.
brake & clutch fluid mounts fabricated & installed.
fuel pump sits as low as I could get it behind the fuel tank. bosch 044.
the lotus shifter & handbrake mechanism is mounted and covers are completed for the centre tunnel.
dbw pedal & linkages installed - still need to play with the rod length.




Attached thumbnail(s)
Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Oct 11 2016, 04:56 AM
Post #85


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
and if all this didn't keep me busy i'm in the midst of commissioning the IT stuff in a new 730 bed tertiary teaching hospital ...


Attached thumbnail(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Cairo94507
post Oct 11 2016, 07:27 AM
Post #86


Michael
**********

Group: Members
Posts: 10,370
Joined: 1-November 08
From: Auburn, CA
Member No.: 9,712
Region Association: Northern California
Nice progress and work. Congratulations and keep it going.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jd74914
post Oct 11 2016, 09:17 AM
Post #87


Its alive
****

Group: Members
Posts: 4,848
Joined: 16-February 04
From: CT
Member No.: 1,659
Region Association: North East States
It looks great Barry!

That Corolla pedal is exactly what I've been looking for, thanks! (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Oct 11 2016, 04:23 PM
Post #88


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
Thanks !
The pedal actually from an '07 Camry - the ecu is '07 corolla & throttle body is is350 - the throttle body doesn't make a different what it is from - neither does the pedal really as long as it's from a Toyota !
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jd74914
post Oct 14 2016, 07:37 AM
Post #89


Its alive
****

Group: Members
Posts: 4,848
Joined: 16-February 04
From: CT
Member No.: 1,659
Region Association: North East States
Cool! Thanks for the info! I really like the fact that it has bolting provisions to easily attach to the firewall. Much easier to implement that the Subaru sensor.

Do you happen to have its connector pinouts?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
barrym
post Oct 14 2016, 08:05 PM
Post #90


Member
**

Group: Members
Posts: 88
Joined: 12-October 14
From: Australia
Member No.: 18,008
Region Association: None
sure - i'm pretty sure this is the final xls I ended up mapping out ... its not hard to lookup the corolla manuals and work out what needs to go where ...
take a look at the pic - the gold coloured box is made up to space out the pedal from the firewall ... just a bit of sheet metal folded, welded & zinc coated ..



Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

5 Pages V « < 3 4 5
Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 1st July 2025 - 03:49 PM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
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 ...