|
|
|
|
| Author |
|
|
Porschaholic
|
Name this part and its function and win
Greetings all:
I'm fishing around the engine compartment and open the case on the left side towards the rear. Relay's and fuses seem to reside. Sitting there all by itself was a yellow relay with a ground wire attached... 91161511800 but not plugged into anything and no apparent home. The parts list call it a mass air flow boost something... what is it and where does it go? The winner gets a shinny new nickel. Last edited by martinb930; 03-16-2008 at 04:05 PM.. |
||
03-16-2008, 04:01 PM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
That is an over-boost protection relay. It cuts the fuel pumps when you over boost in a turbo car.
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-16-2008, 04:08 PM
|
|
|
Porschaholic
|
Quote:
and it just lays there for no apparent reason? Not that I mind as the part costs $150... just checking. |
||
|
03-16-2008, 04:13 PM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
Should be plugged in the panel in the engine compartment on the left.
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-16-2008, 04:15 PM
|
|
|
Porschaholic
|
Quote:
|
||
|
03-16-2008, 04:24 PM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
The yellow relay is for later turbos, the early ones used the red relay.
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-16-2008, 05:11 PM
|
|
|
|
Registered Abuser
Join Date: Jul 2007
Location: Southwest Montana
Posts: 2,738
|
They are very expensive.
__________________
MT 930 1987 930 - Gone but not forgotten A man with priorities so far out of whack doesn't deserve such a fine automobile. I would rather wake up in the middle of nowhere than in any city on earth - Steve McQueen американский |
||
|
03-16-2008, 05:17 PM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
Here is an early red relay:
 and here is a later yellow relay: 
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-16-2008, 05:26 PM
|
|
|
Porschaholic
|
My 930 is a 1986 (first year back to the states) are you suggesting that I remove the red relay and plug the yellow in?
|
||
|
03-17-2008, 11:06 AM
|
|
|
Registered
Join Date: Oct 2006
Location: Mt Pleasant, SC
Posts: 1,167
|
Relay
I have an 86, and mine is yellow.
__________________
Tim 1986 930 Gone:71,2,4 914's, 70T, 71T(RS),77S |
||
|
03-17-2008, 11:11 AM
|
|
|
Smart quod bastardus
|
I had heard that the yellow relay was to keep the CD box producing spark after the ignition was cut off for 30 seconds so that unburned fuel in the engine, manifold was combusted. Do you hear the ignition box humming for 30 seconds after the car is shut off?
Just guessing, but keep the nickel and use it towards a new relay they are expensive...... Fred
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
||
|
03-17-2008, 11:19 AM
|
|
|
Smart quod bastardus
|
Mark,
I just noticed something, but your engine is missing in the photos, you ogt bigger problems than just the yellow relay, ha,ha. Fred
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
||
|
03-17-2008, 11:21 AM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
Neither of those pics are my car. However, my engine is out of the car. Mine is a 1979 with a red relay. Sounds like maybe 1986 was the transition year.
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-17-2008, 11:42 AM
|
|
|
Smart quod bastardus
|
Just kidding with ya, I wanted to add some comedy relief to the forums becaus ehtye get too serious sometimes.
So what is the diff in function between the yellow and red relay? Why can't you just run the cheaper one unless they add an extra function to the system?
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
||
|
03-17-2008, 12:00 PM
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
I don't know the answer to that. I've heard different theories but nothing conclusive. Some say the yellow one is a quicker acting relay since it has a pcb thereby doing some of the work with IC. Some say there is a reduction in arcing on the contacts. Some claim other functionality. I have never had the opportunity to look at the guts of a yellow one (not that I would understand it anyway) so everthing you get from me is from what others say. As a result, everything I'm saying should be taken with a grain of salt.
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-17-2008, 12:06 PM
|
|
|
Smart quod bastardus
|
Another point to conside ris that not many of us are the original owners of our cars, so yo really don;t know what mods were made to the electrical systems or any other parts of the car for that matter by previous owners.
Moral of the story is find out what is supposed to be the function of the parts for your system, determine what is missing or there in your car, and then decide on how to cost effectively fix it. The factory owners manual is a must read for do it yourselfers or have a good mechanic you trust tell you how to correct evreything.
__________________
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, full bay intercooler, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.95 bar max ---"When you're racing it's life! Anything else either before or after, is just waiting" |
||
|
03-17-2008, 12:06 PM
|
|
|
Wayah Road Warrior
Join Date: Jun 2002
Location: Greenville, SC
Posts: 1,536
|
OK, Now you got me curious. 87 930 here. I have the yellow relay.
Mine swivels freely. Is it supposed to be locked into place somehow?
__________________
02 996tt White 87 930 GP White (Sold) 87 911 Targa Guards Red(Sold) Last edited by Shadetree930; 03-17-2008 at 12:39 PM.. |
||
|
03-17-2008, 12:30 PM
|
|
|
craigerz
Join Date: Feb 2008
Location: 15 miles no. of Salt Lake City
Posts: 550
|
So what do we win here?
|
||
|
03-17-2008, 02:35 PM
|
|
|
|
sudo apt-get purge 930
Join Date: Jul 2006
Location: Brandon, FL
Posts: 4,838
|
Quote:
__________________
Mark 1979 930 Euro ***GONE AND DON'T MISS IT AT ALL*** "Worrying about depreciation on your car and keeping mileage down is like not ****ing your girlfriend so her next boyfriend finds her more appealing" --clutch-monkey |
||
|
03-17-2008, 02:36 PM
|
|
|
Registered
Join Date: Jul 2006
Location: S. Florida
Posts: 7,249
|
My '87 has the yellow one.
I tried a red one to see if it would work and the car woud not start. I took the yellow cover off and resoldered the solder joints and put it back. I worry it will leave me stranded on the side of the road someday.. I'd like to know which pins to jump on the relay socket to let the car run if it ever fails. Anyone know? |
||
|
03-17-2008, 02:39 PM
|
|
 |
| Thread Tools | |
| Rate This Thread | |
|
|
Porsche 930
Herman the German
