David P Posted December 17, 2016 Share Posted December 17, 2016 The harder you work a transmission the hotter it will get & additional-power WILL require additional-cooling 9 out of 10 transmission failures are because of overheating, nevertheless, same as for engines, too cold is bad too Automatic transmissions have an optimum operating temperature range http://www.mkivsupra.net/vbb/group.php?discussionid=154&do=discuss Running additional cooling via a thermostat is the solution Mocal Oil Thermostat Please note: You require 3/8" - 10mm hose-tails model Demontweeks page (More info &/or purchase) http://www.demon-tweeks.co.uk/motorsport/oil-coolers-accessories/mocal-oil-stat Plumbing Diagram Link to comment Share on other sites More sharing options...
David P Posted May 7, 2017 Author Share Posted May 7, 2017 Or here. https://www.ebay.co.uk/itm/401446625989?ul_noapp=true H6. Dazzi's Very Pretty A340E GTE/GE Hybrid (pic Dazzi - pic edit Delboy52 ) "Out" is line with temp sensor at front of Supra box. Link to comment Share on other sites More sharing options...
David P Posted May 7, 2017 Author Share Posted May 7, 2017 Flow - Return (pic edit Delboy52 ) Link to comment Share on other sites More sharing options...
David P Posted May 7, 2017 Author Share Posted May 7, 2017 Mocal Oil Thermostat installation (Performed free of charge by "a disabled person who doesn't have public liability insurance".) (pic Delboy52 ) (Note: These hard lines look different because they are different.) Pictured; flow-line from Supra 2JZA80-GTE A340E & return-line from Soarer 1UZ-FE A341E in Supra with 1UZ-FE VVT-i & A340E-GTE/GE Hybrid Transmission. (Yes, the ends of these hard lines do need more support) Delboy52 Before up to temp; ATF circulation is via the temperature regulator in radiator only, as OE. (pic & edit Delboy52 ) Link to comment Share on other sites More sharing options...
David P Posted June 5, 2017 Author Share Posted June 5, 2017 When up to temp; the stat opens and circulates ATF through both the OE temperature regulator and additional cooler(s). (pic & edit Delboy52 ) Single easy-fit cooler mounted to front of air-con condenser. Two oil-coolers mounted to front of air-con condenser. Link to comment Share on other sites More sharing options...
David P Posted June 5, 2017 Author Share Posted June 5, 2017 Oil-cooler(s) can be mounted inside n.s. wing if you prefer? Tip: It might appear counter intuitive to insulate cooling-hoses, nevertheless, using foam pipe-lagging is a rally-car build trick to protect the hoses from chafing in this 'can't be seen' place. (pic Delboy52 ) (Available in black too.) Link to comment Share on other sites More sharing options...
David P Posted June 8, 2017 Author Share Posted June 8, 2017 Easy-fit oil cooler kit(s). 350 to 400ftlb = OE temp-stabiliser + stat + 1 x cooler. 400 to 500ftlb = OE temp-stabiliser + stat + 2 x coolers + A650E sump. 500 to 600ftlb = OE temp-stabiliser + stat + 3 x coolers + A650E sump + remote filter. With a thermostat fitted it's not possible to over-cool, however, fitting an ATF temperature gauge is the sensible way to learn reality of cooling required! Big Sump Mod here. http://www.mkivsupra.net/vbb/group.php?discussionid=207&do=discuss Temp Gauge Mod here. http://www.mkivsupra.net/vbb/group.php?discussionid=210&do=discuss http://www.ebay.co.uk/itm/8-Row-Aluminum-Remote-Transmission-Oil-Cooler-Auto-Manual-Radiator-Converter-BK-/152365524315?hash=item2379b1655b:g:s4sAAOSwA3dYW2zt Link to comment Share on other sites More sharing options...
David P Posted June 8, 2017 Author Share Posted June 8, 2017 For "competition" use and/or over 500ftlb use, sensible persons fit a remote 19 micron filter Note: Filter is located before oil cooler. Mocal Remote Oil Filter Heads come in many forms. http://www.mocal.co.uk/products-rfh.html Link to comment Share on other sites More sharing options...
David P Posted June 8, 2017 Author Share Posted June 8, 2017 1/2" BSP to 3/8" (10mm) hose-tail http://www.ebay.co.uk/itm/BRASS-MALE-BSPT-HOSE-TAIL-FITTING-CONNECTOR-1-4-3-8-1-2-3-4-1-GAS-WATER-OIL-AIR-/141926014965?var=&hash=item210b731ff5:m:mMyxf5-t7cIdny8nj0HFCUw Hydraulic Oil Filter (Capacity 0.6l?) http://www.ebay.co.uk/itm/Genuine-MANN-OIL-FILTER-Hydraulic-automatic-transmission-W914-2-Replaces-W914-19-/322540180412?hash=item4b18e493bc:g:um4AAOSwKytZMVcp Link to comment Share on other sites More sharing options...
David P Posted June 8, 2017 Author Share Posted June 8, 2017 Larger capacity hydraulic oil filter if you like? (Capacity 1.2l?) http://www.ebay.co.uk/itm/Genuine-OE-MANN-OIL-FILTER-Hydraulic-automatic-transmission-operating-W940/322540180843?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D43781%26meid%3D07f04613b2974879ac86529d79f218f2%26pid%3D100005%26rk%3D4%26rkt%3D6%26sd%3D322540180412 Service Items @ Sensible Prices here. http://www.mkivsupra.net/vbb/group.p...128&do=discuss Link to comment Share on other sites More sharing options...
David P Posted June 9, 2017 Author Share Posted June 9, 2017 Should you have a shiny aluminium-radiator without the coolant-circuit interface cooler/heater temperature-stabiliser and wish that you had one... Mocal make a pretty one with a Laminova core. http://www.demon-tweeks.co.uk/motorsport/oil-coolers-accessories/mocal-laminova-oil-cooler-water-cooled Laminova info here. http://laminovapro.com/laminova-oil-cooler-information/ Link to comment Share on other sites More sharing options...
David P Posted June 29, 2017 Author Share Posted June 29, 2017 How to Prolong Life of A340E Transmission here. http://www.mkivsupra.net/vbb/group.php?discussionid=225&do=discuss Link to comment Share on other sites More sharing options...
David P Posted August 20, 2017 Author Share Posted August 20, 2017 U.K. spec Supra's OE fitment have the cooler/heater in the bottom of the radiator and also a 12-row cooler in the n.s. wing. Link to comment Share on other sites More sharing options...
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