Pelican Parts Forums

Pelican Parts Forums (http://forums.pelicanparts.com/)
-   911 Engine Rebuilding Forum (http://forums.pelicanparts.com/911-engine-rebuilding-forum/)
-   -   Connecting Rod bolts, recommendation ? (http://forums.pelicanparts.com/911-engine-rebuilding-forum/912806-connecting-rod-bolts-recommendation.html)

donporfi 05-03-2016 09:05 AM

Connecting Rod bolts, recommendation ?
 
What connecting Rod bolts do you recommend to use in a stock 3.2 engine ?
New Porsche original, ARP or Raceware ?

To install them do I need to measure the stretch or just with the torque figure is enough?

'76 911S 3.0 05-03-2016 09:11 AM

I used ARP on my 3.0 rebuild...I would highly recommend the stretch gauge. ARP lists a "recommended torque" IF you do not have access to a stretch gauge. I found that using the stretch gauge yielded different torque values on different bolts. All close, but not right on the recommended torque value.

Mark Henry 05-03-2016 10:03 AM

3.2 ARP for sure, 3.0 new OE is OK.

donporfi 05-03-2016 10:53 AM

The ARP model number is 204-6005 ?
These are M9

'76 911S 3.0 05-03-2016 01:45 PM

3.2 Rods use M9 bolts...3.0 are M10

Tippy 05-03-2016 03:20 PM

Quote:

Originally Posted by '76 911S 3.0 (Post 9104933)
I used ARP on my 3.0 rebuild...I would highly recommend the stretch gauge. ARP lists a "recommended torque" IF you do not have access to a stretch gauge. I found that using the stretch gauge yielded different torque values on different bolts. All close, but not right on the recommended torque value.

My sentiments exactly

Alan L 05-03-2016 10:41 PM

If you are not tracking it extensively, Porsche are fine - they held together so far for you.
The extra insurance/expense only warranted if you are pushing the envelope.
Alan

Mark Henry 05-04-2016 07:07 AM

Quote:

Originally Posted by '76 911S 3.0 (Post 9104933)
I used ARP on my 3.0 rebuild...I would highly recommend the stretch gauge. ARP lists a "recommended torque" IF you do not have access to a stretch gauge. I found that using the stretch gauge yielded different torque values on different bolts. All close, but not right on the recommended torque value.

On my 3.0 I did some experiments stretch vs torque the difference IIRC was about 2 lbs less torque with stretch. I can't remember if I tried this with 3.2 bolts.
YMMV SmileWavy

Ken911 05-04-2016 08:08 AM

Quote:

Originally Posted by Alan L (Post 9105869)
If you are not tracking it extensively, Porsche are fine - they held together so far for you.
The extra insurance/expense only warranted if you are pushing the envelope.
Alan

or miss a gear on the down shift and over rev it. the arp bolts would save you.

donporfi 05-05-2016 02:02 PM

Thanks for the answers.
Ordered ARP


All times are GMT -8. The time now is 05:38 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website


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