Author Message

<  Performance  ~  166 24v into 116 GTV

PostPosted: Thu Aug 11, 2016 3:27 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
See page before of some pics of the black 75 that's just been posted .

Some pics of a water pump adaptor plate I have been working to make the conversion easier with the motors that have the chain driven oil pump . Due to idler pulley being much lower on these motors the thermostat housing totally clashes and is also off centre for the two pipes from the thermostat to join up to the head . Idea is to cut off flange of Gtv/75 housing and weld new flange into position . Then once welded port out the opening to get the same size as the original and also remove edges . As two of the bolts will be under the housing I have made two tubes in order for the bottom flange to be secured . Bit difficult to explain but will show pics once I'm finished the three I'm working on .

From the shape of the two gaskets in pic it can be seen clearly the mods needed but even then it's in wrong position hence whole new flange .
Attachments:
image.jpg
image.jpg [ 86.98 KiB | Viewed 1646 times ]



Last edited by KevinR on Fri Aug 12, 2016 2:41 am, edited 1 time in total.
Offline Profile
PostPosted: Fri Aug 12, 2016 2:28 am
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Pic shows interference of the lower idler bearing and using standard housing with minor adaptions . It cannot be done . Also so does not line up to pipes
Black pen line shows where to hole saw . Note if you go to big it definitely weekend the support for the bearing as there has been a failure from to much meat being taken .
Attachments:
image.jpg
image.jpg [ 96.94 KiB | Viewed 1636 times ]

image.jpg
image.jpg [ 87.04 KiB | Viewed 1636 times ]



Last edited by KevinR on Fri Aug 12, 2016 2:38 am, edited 1 time in total.
Offline Profile
PostPosted: Fri Aug 12, 2016 2:37 am
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Pic of thermo with new flange . Can see pen marks where it will be ported out to get water flow . Other pic shows clearance from bearing plus belt
Attachments:
image.jpg
image.jpg [ 122.2 KiB | Viewed 1502 times ]

image.jpg
image.jpg [ 95.16 KiB | Viewed 1502 times ]

image.jpg
image.jpg [ 108.36 KiB | Viewed 1635 times ]

image.jpg
image.jpg [ 107.8 KiB | Viewed 1635 times ]



Last edited by KevinR on Sat Sep 03, 2016 12:03 pm, edited 1 time in total.
Offline Profile
PostPosted: Sun Aug 14, 2016 9:10 am
User avatarVerdeVerdeJoined: Tue Oct 11, 2005 8:56 amPosts: 774
WOw, cutting a hole in the head, no way I would do that. I would just do what most others would have done, just use that pipe coming from the back of the heads. It looks like the 164 block route is more straight forward.


Offline Profile
PostPosted: Sun Aug 14, 2016 1:07 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Noooo, you got it all wrong , that's just a plate in front of the head which has a brass bung behind it . These just screw out and are replaced with the ones from the back . Just a simple swap , probabably easier than changing a spark plug !
I will post another pic.


Offline Profile
PostPosted: Sun Aug 14, 2016 1:18 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Look in pic on plate / bracket where hole is cut out
Attachments:
image.jpg
image.jpg [ 93.62 KiB | Viewed 1595 times ]

image.jpg
image.jpg [ 69.71 KiB | Viewed 1595 times ]

Offline Profile
PostPosted: Sun Aug 14, 2016 1:38 pm
User avatarVerdeVerdeJoined: Tue Oct 11, 2005 8:56 amPosts: 774
Oh yes, now I remember. The chain driven oil pump engines have that aluminum bracket.


Offline Profile
PostPosted: Mon Aug 22, 2016 1:20 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
While I was drawing parts to be cut I did plenum again . Also working on adaptor for oil filter / adaptor do you don't have to drill in block but I think I will only finish that next month . Just digging up some old dims for coupling cage as well . These work really well . The black 75 that raced at Brands in the weekend . Some pics to follow.
Attachments:
image.jpg
image.jpg [ 84.32 KiB | Viewed 1547 times ]

image.jpg
image.jpg [ 76 KiB | Viewed 1547 times ]

image.jpg
image.jpg [ 81.68 KiB | Viewed 1547 times ]

image.jpg
image.jpg [ 78.38 KiB | Viewed 1547 times ]

Offline Profile
PostPosted: Sat Dec 09, 2017 2:41 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Been a while , but in spare time been making plenums up from parts I laser cut ages ago . Some pics of it tacked up
Attachments:
image.jpg
image.jpg [ 174.4 KiB | Viewed 568 times ]

image.jpg
image.jpg [ 120.63 KiB | Viewed 568 times ]

Offline Profile
PostPosted: Sat Dec 09, 2017 2:44 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
I see these manifolds which originally came from me were up on eBay
http://www.ebay.co.uk/itm/Alfa-75-GTV6- ... 2729600009

I do know who has them now if anyone is interested at a reduced price .
I can forward anyone interested in Nicks address to PM me .

The design is not ideal and true to the ultimate power gains but as an easy solution with good access in and around the engine bay ( starter motor ) they are pretty good and serve the purpose .


Offline Profile
PostPosted: Sun Dec 10, 2017 12:00 am
VerdeVerdeJoined: Tue Nov 30, 2004 12:10 amPosts: 1696Location: Athens,Greece
Hah! You must have made several of these, as they look almost exactly the same with the set you sent me several years ago, but not identical. I can tell from comparing the welding seam details with the pics side-by-side. Lots of water under the bridge since then... :wink:

Jim K.


Offline Profile
PostPosted: Sun Dec 10, 2017 3:49 pm
User avatarVerdeVerdeJoined: Tue Oct 11, 2005 8:56 amPosts: 774
Kev,

Do you have the laser cut guibo protector? I need one for the front and rear guibos.


Offline Profile
PostPosted: Sun Dec 10, 2017 4:13 pm
GoldGoldJoined: Sun Mar 20, 2016 2:46 pmPosts: 175
Hi , yes I do have a few left and to be honest you only need it on the front as its only the front one that distorts and twists the most . The front one takes full brunt of initial energy transfer and it sits statically at the worst angle of all three .
I had on the rear at one stage in my car then inspected the marks from the twist the prop bolts made and not even close to the punishment the front took.
I took a video of my mates 75 3.2 Gta on Friday at Goodwood reving to 7200 in fourth - sounds brilliant ! He only runs one of my cages upfront and the webbed clutch housing I copied from MD . Car is pretty bullet proof ... So far !
Send me PM


Offline Profile
PostPosted: Mon Dec 11, 2017 12:52 pm
User avatarVerdeVerdeJoined: Tue Oct 11, 2005 8:56 amPosts: 774
Cheers m8, how do I get it from you? Is Paypal ok for Payment?

BTW I see you guys got a bit of snow there, at least London and north of London.

Thanks!


Offline Profile
PostPosted: Wed Dec 13, 2017 6:31 am
User avatarGoldGoldJoined: Mon Nov 29, 2004 4:16 pmPosts: 100
Is it the rpm that gets the guibo torque? I think it is the centrifugal at higher rpm's that does the damage.


Offline Profile

Display posts from previous:  Sort by:

All times are UTC - 8 hours
Page 4 of 7
101 posts Go to page Previous  1, 2, 3, 4, 5, 6, 7  Next
Users browsing this forum: No registered users and 1 guest
Search for:
Post new topic  Reply to topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum