chief break-everything
Posted 25 April 2013 - 08:25 AM
When you say "haven't had any MAJOR issues", I presume you mean failures, but you have not had the motor apart to check for major cam/bearing wear etc due to starvation?
nope had motors apart and havent had major cam or bearing wear having said that none of the motors ive built to date have been that crazy but the new one im building will be a little more on the wild side and anything to prevent failure im up for
Forum Fixture
Posted 25 April 2013 - 01:09 PM
awesome work by them, good that there are people out there still pushing the holden v8.
the issues iv seen with the 308 oil pumps, unles you use a genuine pump, which is not available, they are very inconsistant with there pressures, so if this new design can rectify that, job well done.
when it comes to the oil pump drives, i have had issues, broken shaft, killed a coated steel gear and a brass gear(1000kms), we also redrilled the cam retaining bolt to spray oil directly into the oil pump drive gear-cam gear.
_barana_
Posted 27 April 2013 - 02:47 PM
Edited by barana, 27 April 2013 - 02:51 PM.
Forum Fixture
Posted 27 April 2013 - 06:07 PM
It's not a new discovery I have one in the shed at home it's the same it also uses a Chrysler 361/383 oil pump and can make 100 psi cold and it used to blow the rear cam plug out
I've had it for about 15 years
you're its not a new discovery,.
what you've got was attempted in the late 70's and kinda worked but leaked and also didn't mount up very well and wasn't pursued much further after that,..also the pump you refer is not right either...
people in the no have always been aware the holden 308 has a oiling problem compared to your ford or mopar engines..in stock form your not going to notice or worry it about too much..
just watch oil pressure gauge under extreme driving conditions when oil is hot,..i've seen a lot 308s hold 60psi then come back to 25psi after idle and even less not very comforting...where as your fords and mopars had great priority oiling systems and hold there oil pressure..
in the 25 last years or so the holden 308 has been able to make much more horsepower than the early days with advent of the VN cylinder head making 500 horsepower plus very easy these days when stroked these days but you still have the same oiling system...the more power you make the more you need a better oiling system and Ned's taken upon himself to design a very easy solution for himself and his customers and hopefully the public to benefit from and yes i am giving him a deserving plug for pursuing it..
_barana_
Posted 02 May 2013 - 10:15 PM
how did v8 supercar teams deal with this issue?
Fulcrum Fixture
Posted 02 May 2013 - 10:26 PM
how did v8 supercar teams deal with this issue?
[/quote
Dry sump with associated oil pump etc.
_LH SLR 3300_
Posted 21 June 2013 - 08:34 PM
Having brought this subject to Ned's attention, he agreed that although personally he had not seen them commonly fail, there is a design fault that can lead to failure & is an area that would benefit from improvement. Ned is in the process of manufacturing an improved driveshaft to work with his pump & I might also add that one of the custom manufactured components that makes up his existing pump design already greatly improves this area & broken shafts are much less likely to occur. I'll update this thread further once i'm able to get some pics, hopefully in the next week or two.
I thought one of the weaknesses was the oil pump drive gears and shaft. Has anything been done in this area?
.
.
Posted 19 October 2013 - 09:43 PM
Street Machine magazine November issue, Quicktech article on this pump setup. torana forum even gets a plug!
Forum Fixture
Posted 20 October 2013 - 08:28 AM
i'm happy to see my good friend efforts being rewarded in street machine with a article..
i know some of the big names and astute people in the industry have thrown there support behind this oil pump and tested it including Kim Baker precision engines..
Precision international parts will also be a supplier apart from Ned...
Happy for my good mates effort..
_Gunmetal LH_
Posted 26 October 2013 - 03:29 AM
Not on a Holden I know, though here's another idea?
oilpumpcoveroff1_zps71460bc9.jpg 34.28K
16 downloads
Forum Participant
Posted 28 October 2013 - 09:51 PM
does anyone have price on one of the Hercules oil pump ?
Forum Fixture
Posted 29 October 2013 - 10:35 PM
hi shags,..call Ned directly and he'll quote you a price..cheers
Forum Participant
Posted 30 October 2013 - 02:42 AM
roger will do
cheers
Fulcrum Fixture
Posted 02 November 2013 - 07:05 AM
Edited by TerrA LX, 02 November 2013 - 07:06 AM.
Forum Fixture
View Garage
Posted 03 November 2013 - 05:49 AM
Reselling, say's it's available through Precision International or Hercules in the Street Machine article.
_SLEDGE_
Posted 27 February 2014 - 11:28 AM
Just re-visited this thread and spoke to Ned about one of his oil pump's today.
Thanks Matt for the info and contact details, Ned seems like a great bloke and is posting me a pump and adapter today.
He says he's sent over 20 down here to Melbourne and 150 Australia-wide so far.
I'll let everyone know how I go with mine!
_Cantstandguesers_
Posted 16 November 2014 - 07:04 PM
Mark Andre did his engineering doctorate( not certificate IV. not diploma. not degree. not masters.his doctorate on 10,000 rpm engine design. worked for REPCO (race engine preparation company) to design the L34 Motor that GMH asked for. It scares me getting people to play with stuff when Holden realized the absolute genius it was required to build this or any race motor. You not only work on making it better you learn how to baby its weaknesses which all machines have . Peter Brock was a genius at babying machinery .Getting it home knowing its weaknesses and pushing it during its strengths.
Lotsa Posts!
Posted 16 November 2014 - 08:25 PM
wonder if the fact that the pump was alloy and that it might have "walked around" (relaxed) a bit after a bit of heat and expanded a bit to make the
tolerance run out to cause oil pressure problems when hot?..they say that gear side clearance is important but the end float is just as..if not more.
didn't the L34 have 'race series' mains ?
no expert but when you look at the number of sixes throwing a leg out,is it oil pressure problem or oil feed problem?
could be both?or one leading to the other?.when the rod is only getting fed 50% of the time at hi rpm there might be a slight drying out problem.
Forum Member
Posted 12 April 2016 - 10:24 PM
Forum Member
Posted 17 April 2016 - 03:17 PM
Has been Torana owner
Posted 17 April 2016 - 07:00 PM
Yes you still need to prime them with Vaso and I use the shortened version of the Z9 filter to clear the lower hose. From memory, a Z411 filter also fits which is smaller again...
Forum Member
Posted 17 April 2016 - 10:49 PM
Forum Member
Posted 25 May 2016 - 11:57 PM
hi have a z10 on now and fits great, the other is a z418 
Has been Torana owner
Posted 26 May 2016 - 12:20 PM
Or even a Z89 :-)
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