Pelican Parts
Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   Pelican Parts Technical BBS > 1- Porsche Technical Forums > 911 / 930 Turbo & Super Charging Forum

Reply
 
LinkBack Thread Tools Rate Thread
Author
Thread Post New Thread    Reply
Registered User
 
Join Date: Dec 2009
Posts: 223
Group 29 vs group 91 battery

I noticed the other day that slant 930s take a shorter group 29 battery instead of the monster 91 for obvious reasons. I also noticed that in the battery box of my non slant, there is a second hole drilled and tapped for the forward battery clamp, and that hole is in the right place for the short 29. Just FYI in case you are due for a battery change. 29s are easier to find than 91s, at least where I live.

Side note: just behind the battery this morning I noticed an old fuse in a small crevice. I reached a finger in to get it, and suddenly I had a one inch slice in my finger. I knew there was not any edge in the car that could do that, so I shined a flashlight in, and there was a razor blade sitting in the crevice. ???? Bled like a stuck pig; had to put on a rubber glove to keep from bleeding all over the car and tools while I finished the battery install.
__________________
Steve
86 930
91 535i
73 TR6

Last edited by S1000RR; 10-01-2017 at 03:54 AM..
Old 09-30-2017, 07:20 AM
  Pelican Parts Technical Article Directory    Reply With Quote #1 (permalink)
Old car guy.....
 
Hot Euro's Avatar
 
Join Date: Mar 2014
Location: Lubbock, Texas
Posts: 469
Garage
Sorry about the finger, I've had s... like that happen. Takes longer to clean up the mess than do the job in the first place.
I had a dead battery on the eve of a car show and had to find one in a hurry. No one seemed to know what a group 91 was until I stopped at Autozone. He said it crossed to a T6 which fits perfect. Batteries have really gone up since I bought my last one...$197.
__________________
Steve
81 SC Euro WB, 930/51, 3.0l Bored & Stroked to 3.2l, Ported Polished Twin Plug heads, Ruf IC, K27 7006, Powerhaus headers, Zork, 009 inj, Alum inj blks, 044 pump, BLwur, Mocal Oil cooler, LM2, 930 4 sp LSD, 930 Brembo brakes, Retroair a/c, Euromeisters.....
2003 BMW Z4 Daily Driver & Autocross car.
Old 10-01-2017, 04:20 AM
  Pelican Parts Technical Article Directory    Reply With Quote #2 (permalink)
Registered User
 
Join Date: Jul 2006
Location: Honolulu, HI
Posts: 4,814
T6 battery? I bought an H6 AGM for my 930 and a H7 AGM for the Boxster from Sam's Club.
__________________
Bryan O.
77 930
08 Boxster
14 535i M Sport
Old 10-01-2017, 04:57 AM
  Pelican Parts Technical Article Directory    Reply With Quote #3 (permalink)
Turbo Powered Snow Blower
 
Join Date: Mar 2016
Location: Rocklin, CA
Posts: 1,353
Garage
I don't know what Group this is, But the Odyssey PC 925 with Odyssey mount fits in the factory mounts, weighs less than half of any other battery, and does the job.
You do need a longer ground cable.

__________________
Derrick
Old 10-01-2017, 06:47 AM
  Pelican Parts Technical Article Directory    Reply With Quote #4 (permalink)
Rocket Scientist
 
Join Date: Jun 2008
Location: Detroit
Posts: 820
They actually put the chunky battery in to better bias the weight of the whole vehicle, according to "Porsche 911 story". So now you have to take your AC compressor off to make everything right again!
Old 10-01-2017, 08:09 AM
  Pelican Parts Technical Article Directory    Reply With Quote #5 (permalink)
Turbo Powered Snow Blower
 
Join Date: Mar 2016
Location: Rocklin, CA
Posts: 1,353
Garage
Group 29 vs group 91 battery

I call BS on that hypothesis. Why would you have the Tractor battery and the washer fluid reservoir on the drivers side and only a copper hula hoop oil cooler on the passengers side?
Porsche quit trying to balance these cars by 74.


Sent from my iPhone while Driving
__________________
Derrick
Old 10-01-2017, 06:51 PM
  Pelican Parts Technical Article Directory    Reply With Quote #6 (permalink)
 
Now Available for Ordering:   101 Projects For Your BMW 3 Series 1982-2000  [more info]
Reply

Thread Tools
Rate This Thread
Rate This Thread:

 


All times are GMT -8. The time now is 08:50 PM.


 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2016 Pelican Parts - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page
 

DTO Garage Plus vBulletin Plugins by Drive Thru Online, Inc.