| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
#1
02-05-2011, 01:21 PM
|
||||
|
||||
Vacuum pump installation questions
I've gotta run a vacuum pump to operate my hideaways and power brakes. Where have you guys mounted them and who's did you use?
Thanks
__________________
Don't worship false idles... 68' GTO 500+HP 10.25:1 #16 iron headed pump gas street motor...YES, it can be done! 
|
|
#2
02-07-2011, 04:16 PM
|
||||
|
||||
|
270Win--
I recently purchased the Summit brand. I had trouble finding a spot to mount it and wound up mounting it on the front of the engine, passenger side. This was not a problem for me to do as I have no AC in place and don't expect to have any of the compressor and brackets mounted for some time (may never again). The vac hose from the unit runs along the heater hoses and they runs between the back of the carb and the distributor over to the filter and then on to the brake booster. I have not set this in permanently at this point and could take it out in 15 minutes or less. As for wiring, I tapped into the HEI power (pink) line and the positive wire runs along the passenger valve cover to the unit. The negative is attached to the ground strap on the firewall near the distributor. There is a built in 12 Amp fuse on the unit. My power brakes were not receiving enough pulse to properly operate my 4 wheel disc brakes. It felt like a manual. Mods to the engine reduced the vac. The increase in vacuum made a big difference. As for noise--it runs intermittently and only for several seconds. Not an issue. Hope this is helpful. |
|
#3
02-07-2011, 09:32 PM
|
||||
|
||||
|
Thanks!
Do you have any pics of the setup? I was also thinking about a hydroboost power steering setup to get the needed vacuum. I'm going to do some experimenting with tuning to see how much vacuum I can get out of it. Last time I messed with it, it was 8.5"hg at idle...but it was out of tune. I'm trying to stay as stock looking as possible so I'm not sure I want the electric pump unless it can be hidden...
__________________
Don't worship false idles... 68' GTO 500+HP 10.25:1 #16 iron headed pump gas street motor...YES, it can be done!
|
|
#4
02-14-2011, 05:17 PM
|
||||
|
||||
|
I'll take a few photos and post.
Hydroboost is another method that will work. |
|
#5
02-14-2011, 06:27 PM
|
||||
|
||||
|
Quote:
__________________
Don't worship false idles... 68' GTO 500+HP 10.25:1 #16 iron headed pump gas street motor...YES, it can be done!
|
|
#6
02-16-2011, 02:16 PM
|
||||
|
||||
|
270--I posted the photo on my website forum. I couldn't get it to appear here. So, click on the link below.
http://psp.aquacomp.net/topic.asp?TOPIC_ID=4611 |
|
#7
02-16-2011, 09:59 PM
|
||||
|
||||
|
cool! thanks for the link too!
__________________
Don't worship false idles... 68' GTO 500+HP 10.25:1 #16 iron headed pump gas street motor...YES, it can be done!
|
| Reply |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Linear Mode
