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pgtips Samba Member
Joined: July 23, 2009 Posts: 860 Location: essex
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Globespotter Samba Member
Joined: February 16, 2012 Posts: 1770 Location: Newmarket, ON
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50353
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Posted: Fri Apr 16, 2021 4:42 pm Post subject: Re: Subaru conversion latent through floor heat |
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pgtips wrote: |
Hi,
I've done a Subaru conversion which I'm very happy with and I'm using an under belly radiator.
Cooling is great, temps good but the floor does get warm inside which on a hot day I'd like to see if I can cool it a bit.
I'm thinking about placing a heat shield layer in between but wondered if anyone else has tried anything else with any success.
Pg |
On the Vanagons, VW handled their hot foot problem by adding stick on foam insulation. |
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alaskadan Samba Member
Joined: January 09, 2013 Posts: 1858 Location: anchor pt. alaska
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Posted: Fri Apr 16, 2021 6:20 pm Post subject: Re: Subaru conversion latent through floor heat |
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I've done a couple of suby bay conversions for others up here. I only drove one of them to any degree. It was our summer but that means 65 degrees on average around here. Needless to say I didn't experience the hot floor. I bet it could be bad in traffic and 90 degrees or more. Out of curiosity, whats your fan setup? Pulling, pushing? |
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vwwestyman Samba Member
Joined: April 24, 2004 Posts: 5688 Location: Manhattan, Kansas, USA
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mikedjames Samba Member
Joined: July 02, 2012 Posts: 2745 Location: Hamble, Hampshire, UK
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Posted: Sat Apr 17, 2021 2:35 am Post subject: Re: Subaru conversion latent through floor heat |
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Its the fires of Hell awaiting you for ripping the heart out of it !
Why not try the closed foam aluminised rubber stuff that people fit in engine bays above the radiators ? Although that might make the cooling more marginal if you stuff more insulation into the probably a bit too small gap.
Increase the air speed through the radiators ?
Reverse the air flow and keep fans running from the top all the time the engine is running (stupid but the floor would be cooler) _________________ Ancient vehicles and vessels
1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.
1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy |
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MorkC68 Samba Member
Joined: December 23, 2015 Posts: 610 Location: Nottingham, England
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Posted: Sat Apr 17, 2021 1:52 pm Post subject: Re: Subaru conversion latent through floor heat |
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mikedjames wrote: |
Its the fires of Hell awaiting you for ripping the heart out of it !
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I'm knocking on the gates Mike, knocking on the gates _________________ Major; 1977 Westfalia Campmobile
- Subaru EJ20
- Koni Classic adjustable dampers & Empi Heavy Duty Anti Roll Bar
- 180W Solar System
My blog: https://twolatebays.wordpress.com/ |
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pgtips Samba Member
Joined: July 23, 2009 Posts: 860 Location: essex
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vwwestyman Samba Member
Joined: April 24, 2004 Posts: 5688 Location: Manhattan, Kansas, USA
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Posted: Mon Apr 19, 2021 12:58 pm Post subject: Re: Subaru conversion latent through floor heat |
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I'm going to reiterate the recommendation to put something reflective directly under the floor. I think if you can block heat from getting to the metal at all, you'll experience the best success. There will also be a small bit of an air layer that will help.
By under the floor, I mean under the metal portion, outside the bus, above the radiator. _________________ Dave Cook
President, Wild Westerner Club
1978 Champagne Edition Westy, repowered to '97 Jetta TDI
1973 Wild Westerner
My Thing |
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pgtips Samba Member
Joined: July 23, 2009 Posts: 860 Location: essex
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Shonandb Samba Member
Joined: January 12, 2019 Posts: 1196 Location: Vancouver, BC
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Posted: Mon Apr 19, 2021 5:00 pm Post subject: Re: Subaru conversion latent through floor heat |
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I used reflective water heater wrap between the floor and belly radiator as well as multi-layer insulation on the metal floor under the carpet and don't notice any transfer of heat. I have the rad on an angle to create airflow and the water heater wrap is cut to fit but is free hanging and not glued in. I wanted air to be able to pass between the floor and the insulation so moisture doesn't build up. So far it has worked out well. _________________ *******************************
76 Westy with a 2.5L Subaru SOHC + Vanagon (010) Automatic Transaxle
Build & Trip Thread: https://www.thesamba.com/vw/forum/viewtopic.php?t=758760
Previous 1973 Panel Bus:
Click to view image |
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