Surprisingly bijou pre-rad there Ed - Looks more efficient, but not much larger surface area than a 25-row oil coolers some use for Stage 2 SC'ers...
Project Fracas - 6Sp A20Nft
#321
Posted 17 June 2016 - 01:02 PM
#322
Posted 17 June 2016 - 01:44 PM
Edited by ed.oates, 17 June 2016 - 01:47 PM.
#323
Posted 17 June 2016 - 07:16 PM
Basically had to chop part of the cooler mount out, and mold myself a small box section out of fiberglass. This box was needed so I had a flat surface to mount my DIY bulkhead hose mounts.
The bulkhead fittings are a flanged 25->20mm ID hose barb 90's. Quite a nice way of brining 25mm ID hose right up to the front, with 20mm hose completing only the last lengths to and from the core. The 25mm is supported by the bulkhead, and minimizes the need to bend such big hose around.
Fwiw, I've been experimenting with heat-forming the 20mm silicone hose. Essentially I found some 5 core heavy duty electrical cable that's about 18-19mm OD. Slip that up inside the hose, bend to shape, hit with a blowtorch till the hose sweats, and then submerge in cold water. It's a bit fun getting the cable back out, plus it's easy to heat things too far and singe the hose. Happy with how it turned out, but might try again just for OCD'ness.
#324
Posted 17 June 2016 - 07:30 PM
Just had a quick look at various 25row coolers... Core size seems to hover around 250x200mm. Core in mine is about 260x280. So actually nearly 50% more surface area when you look at the numbers. It's still small, agreed, hopefully it'll see enough air and water flow to work. If not, at the very least it'll get the car going, and leave me something to spend money on at a later datenot much larger surface area than a 25-row oil cooler
#325
Posted 18 June 2016 - 06:25 PM
very neat!! i like that a lot! ::
#326
Posted 19 June 2016 - 07:55 PM
It also means my meticulously routed hosework has gone to crap. I can't run a 20mm hose around the side of the IC rad inside the support structure any more. There just isn't any room. So either I need to go to another IC cooler design (with inlet/outlet both on the same side) or I need to reroute a hose.
As I'm going to stick with the core I've got for now, it looks like I'll have a redundant bulkhead fitting And an ugly hose to contend with. On the upside, the ugly hose will be 25mm, thus the length of 20mm (along with one 90deg bend) will be reduced.
Fwiw, how the bulkhead fitting hoses looked fitted to my spare parts chassis:
I also started to fit up the heater core, bypass valve and pipework. I really need to get my sh*t together and get the pedal box and steering column in and finished, and this is the last little bastard holding that plan up. I'll make the cable activation linkage and mount tomorrow. Hopefully no surprises.
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#327
Posted 21 June 2016 - 09:20 PM
#328
Posted 21 June 2016 - 09:25 PM
#329
Posted 21 June 2016 - 09:36 PM
As mentioned, it at least now has the benefit of being a run of 25mm hose with a 25mm elbow (instead of being 20mm). Not quite so neat looking, but, meh, needed to be that way.
#330
Posted 21 June 2016 - 10:31 PM
knew you would figure it out.
#331
Posted 24 June 2016 - 11:09 AM
#332
Posted 24 June 2016 - 07:08 PM
I think you need to rename this thread to "Project Frankenstein" !
Keep the spanners turning, I am sure we all behind you
Edited by Nev, 24 June 2016 - 07:08 PM.
#333
Posted 24 June 2016 - 07:08 PM
#334
Posted 24 June 2016 - 07:54 PM
#335
Posted 24 June 2016 - 08:38 PM
#336
Posted 24 June 2016 - 09:08 PM
#337
Posted 24 June 2016 - 09:25 PM
#338
Posted 24 June 2016 - 09:30 PM
why is your rad surround black and why doesnt it have the sides on it?
#339
Posted 25 June 2016 - 06:42 AM
#340
Posted 26 June 2016 - 07:19 PM
Due to the small throw of valve actuation lever assembly, I had to reduce the radius throw of the control arm. So a bit of dicking around, and one false start, and there we go. Ended up quite neat, moves well without slop, and the temp control knob travels just over 180deg, so fidelity is quite good given the small throw of the valve.
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