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The mkiv Supra Owners Club

Still got the supe !


jagman

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Sills were from Toyota ,inner and outer , there were only two inners left according to Toyota ! This led to getting the whole car being checked all over for rust …and a bare metal respray with all the correct undercoating  - no rust found but now committed! So all stripped glass out job and correct anti rust primer (non porous coat ) 

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The rear 1/4 panels were widened by an inch each side - this took a lot of blending and a lot of work ! To match the trial rear and be seem less  - not recommended! The engine was swapped out just before going in to the shop - forged engine fresh rebuild with boostlogic manifold and 67dbb turbo - boost logic box fitted with upgraded clutch packs and billet 2nd sprag -fresh built .original do luck front fitted well and ridox sills - then into colour 

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55 minutes ago, SUPRA4EVA said:

So jealous about the sills, can't get sh1t now lol 2000s must have been an amazing time to own a MK4.

Supra tax took hold ! The cars were never considered an icon (except by forum owners) bits swapped hand for next to nought and done to help other owners out - I got a pair of ganador electric mirrors for £200 and sold about 10 sets of oem front discs for £25 a pair ! Now people want hundreds of pounds for a bit of plastic trim !!! Then you couldn’t give away a side mount intercooler in good nick as everyone was fitting fmic and binning the stock front lips - lol 

I got a brand new long block from Toyota for £900 new ! Used it in CJs orange car 

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Oh yeah ebay is fully of these chancers selling MK4 parts in absolutely horrible condition only suitable for the landfill and demanding a fortune. And no one calls these cars "grey imports" anymore and NA Autos are as good as TT6 now!

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Paint was a house of kolor purple ,I had 4 or 5 test mixes done ,with different levels of pearl /flake , until I got the exact result I wanted in daylight /sun - a one off really . It’s all rock hard now . Once all back together ,just a ceramic finish to add . 
now I have a bit of time for the car , the last push over the next few months . I have boxes of stuff to fit ,many parts I am just fitting new as I can’t be bothered refurbing and it’s faster .  So brand new UK brakes all round , I have CW pads , brand new shocks …I have gone with Tein and have the latest EDFC 5 with GPS ,AI and quieter motors ,also wireless.

A whole bunch of arms drop links etc ,fuel lines brake lines , the complete cooling system ,all new - rad ,shrouds ,pump ,hoses etc -  

I have pencilled in a gearbox change post Xmas to an 8 speed ZF - a syvecs fit , toucan , new injectors (larger) water injection ,new turbo ( the “old” one has 500 mile on it - lol 

The 8 speed opens a whole new area , there is not that much data around with the mk Iv - for sure it works well and there are many options …not just the electronic control but internal upgrades ..clutches ,stall converters and on and on - ???

So a busy 2 months coming up …

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Rear brake callipers - Dinitrol AV8 coated , one done the other as new for comparison. The factory casting is slightly rough hence when coated you get a smoother shiny finish .

this will reduce any build up of brake dust sticking to the calliper and wash off with ease , wheel cleaners won’t effect the coating and it will withstand the temps - so last years and look the same as when fitted - the coating is resistant to most things - best using a hose rather than a jet wash - should never need a high pressure wash to clean . 

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The engine bay looking very sad ! Covered in dust ! Huge clean up required and some bling added . Looking at other bays put me to shame . You can just see an extra charge cooler I fitted going into the throttle intake behind the rad . I have not seen this done before , but twin cooling ,fmic then charge cooler . I tested this and it does work . IAT much more stable and allows higher boost . IMG_2570.thumb.jpeg.338aca4a6d1b8906d0bb35f6a34a5aaf.jpeg

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Got the car on ramps today and took a preliminary look - pretty good after such a long time - just surface rust on heat shields and suspension arms etc - nothing that wont scotch brite off - then dinitrol and alodine  the aluminium parts . Interior fed with Connolly hide food ,some fitted and then taken off again - due underneath needs doing - wires etc need running - unwrapped bits I forgot I had and now need to work out where and how to fit . The dash needs to come out to swap for the cream one (I now have 2 sets of interior trim ) so I will fit a new heater core just in case . Pic of interior as it was originally . I am doing all the red in carbon and some of the cream bits - I may have carbon sunvisors - arrive this week ,so I can check fitment .

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I found the charge cooler tank , just need a polish , I have a rad and pump somewhere . This needs to go in the boot , so I need to run wires for the pump . I might relocate the battery to the boot , this will give space for a WI tank up front with pump . I am trying to run all new looms while the trim is out , all made harder as I have a double din head unit ,speakers and sub to fit and a carbon steering wheel which needs looms for stereo control ,cruise , clock spring ,paddle shift and so on . Underneath tomorrow for a close inspection and clean up 

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On ramps today for inspection - looked at every nook and cranny - basically zero rust - dusty for sure ! All the factory under seal is good . I noted that Toyota dont under seal the whole bottom ,or maybe it’s just Jspec cars ? There is a line just 3 inch inside the sill join where factory under seal stops , I took off the exhaust heat shields as they don’t do anything with my exhaust fitted . Again under these no under seal , boot floor and into wheel arches same . I have zero rust in any of these areas but tomorrow I will mask up and spray a coat of Raptor 2k under seal . I’m not doing the whole car as it kinda looks like you are hiding something . The front under radiator x member was mint not a rust mark - understatement to say I was happy ! While underneath I fabricated a brace for the rear bumper and edged the lip with a door seal rubber - it now joins with the tank cover perfectly has no gap and an amount of give to stop cracking . The side sills also have a gap to the floor of about 2 inches - looks shit ! So I will fabricate a joiner to blend to the floor nicely - so happy no restoration needed underneath  - dry storage for the win ! 

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Started fitting rear brakes and shocks checked wheel bearings ,bushes and every small item - all good , coated the rear subframe and all surrounding areas ,boot floor and all the hidden areas with Dinitrol . Replacing the anti roll bars with stiffer ones and new bushes and drop links , that will take some of the roll force off the springs .

For a 30 year old car it is remarkably good gotta love Toyota ! 

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Wheels ….I really want to keep the wheels as they are genuine JDM wheels but as the car is an inch or two wider they are a tad sunken in . They are the proper 50 offset so perfect . I don’t want to fit spacers ,so I can get new outers 40 hole , but with more lip . a bit  limited to how much I can add without silly size tyres ! Maybe another 2 inches and squeeze on 315 tyres ? Outers are only available as flat rather than stepped outers 

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Steering wheel arrived , I have to mod the clock spring to allow all the buttons to work and fit the cruise lever  and a bit of wiring to the column loom . But the new wheel will match all the interior panels . Should really add a supra transfer decal in place of the GR ! Still waiting on parts to arrive , new arch liners ,ARBs and all sorts ,so tomorrow some wiring install and fit mirrors 

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17 hours ago, jagman said:

Steering wheel arrived , I have to mod the clock spring to allow all the buttons to work and fit the cruise lever  and a bit of wiring to the column loom . But the new wheel will match all the interior panels . Should really add a supra transfer decal in place of the GR ! Still waiting on parts to arrive , new arch liners ,ARBs and all sorts ,so tomorrow some wiring install and fit mirrors 

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If you could let me know how you're going to mod the clock spring I'd appreciate it, as there's only 6 pins, and I've yet to figure out how to add more?!?

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The stock clockspring is limited , depending on what you want to add or lose . If you can lose the airbag then the 2 wires can be used for audio control - the loom runs down to the console by the hand brake - audio control only needs 2 wires - splice in a 3.5 jack plug and it goes into the head unit . If you want more , flappy paddles etc then you need a later clockspring with 12 pins plus 4 airbag pins - you need to get an out put connector and add wires along the column ( or a column loom from a breaker with a 12 pin connnector . And you need the wheel side connector 12 pin . Supra is a single shot airbag and later Toyotas are a twin shot airbag - you can just use a single shot or fire both 

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I have some carbon mirrors to fit and match the rest of the interior ,basically cream leather / carbon . They are no supra specific carbon mirrors so I’m using these , pivot distance the same and very close to OEM shape . Original vs retrim vs carbon .  
I have to swap the leather on the roof liner as it’s lifted a small amount and the biscuit is a bit floppy - so a swap onto my original grey liner which is mint . If the mirrors don’t fit exactly or there is an issue , I can reshape the liner before recovering . But I think they will be OK as is - I will update later 

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https://uk.rs-online.com/web/p/automotive-connectors/7201036?cm_mmc=UK-PLA-DS3A-_-google-_-CSS_UK_EN_ePMax_Prio2-_--_-7201036&matchtype=&&gad_source=1&gbraid=0AAAAADkeWNPPaitgloVr40Tn5O_YTRmJD&gclid=EAIaIQobChMIwY2f7MLHiQMV2JtQBh2cFTEgEAQYBCABEgL36PD_BwE&gclsrc=aw.ds
 

this is the 12 pin female connector for the column side of the clockspring - some clock springs have 16 pin or 10 pin . So you have to cut off the original and put the pins in here plus the new cables along the column . The other side (steering wheel side ) is the same connector but the orientation sliders are opposite , so cut them off with a blade and add however many wires you need - flappy paddles audio cruise etc -

pic is the plug you need for the head unit - cut off the connector and use two of the wires , connect to the two audio wires from steering wheel controls 

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Clockspring /spiral cable : there are a few variations across Toyota/Lexus , each having slightly different connectors and wires . They are interchangeable to a point , most of them fit pretty much any steering wheel at the wheel end and relatively easy to fit at the column end . The main differences are the connectors - squib/s for airbag the connector at the wheel end and the outlet column end - this is due to the various steering wheel functions - cruise control are pretty much all 2 wires earth and ccs signal , the audio are either two wire or 3 wire  , earth and vol/seek (au1) and mode (au2) , the tel wires are not really needed so spare (maybe used for flappy paddles . Horn is always an earth . The squib connector is usually a 4 pin separate connector PN 90980-121552 yellow colour - I am not using squibs as my wheel has a dummy airbag . But this connector allows 4 available wires . The main connector is usually a 12 way PN 90980-12552  ,some later cars have steering sensor inputs so more wires (not needed on supra ) the supra does not have the column wiring in enough wires  - so you can use the 2 squib wires (if no airbag ) and cruise wires /horn with the existing clockspring . Some later cars have nav and rear cameras hence the extra pins in connectors . Connectors are around £2 so you can allocate pins to wires to suit your steering wheel and it’s functions and add cables to the column side to suit - it’s a minefield with so many different factory options and no plug and play option . But it is doable .some supra don’t have cruise but I think the connector is the same but no pins or wires - the later supra has extra for paddles I think - it’s not that hard to reach over and press the radio volume , for sure an easier solution ! But when you have buttons the urge to press them is strong ! 

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Battery relocation : If relocating the battery to the boot area ,you should also extend the sense cable : The alternator uses a sense (S) wire ,this wire comes from the alternator to the bottom of the fuse block and joins where the main alternator output connects . This is about 1 foot from the battery . As the name implies the sense cable “senses” the voltage close to the battery and it is used to control the voltage regulator in the alternator . The heavy duty cable from alternator to fuse block (near battery ) carries all the charge current and any voltage drop on this cable is sensed and the regulator increases the output , ie if the alternator put out 14volts at the alternator and this dropped to 13.9 at the fuse block (battery) the regulator senses this and ups it’s output back to 14 v .   If you move the battery to the boot and add 3 meters of heavy duty cable and add any connections (each can drop volts) , the sense cable cannot sense this ….so you should also extend the sense wire with the new heavy duty cable to the rear as close as possible to the battery . Now any extra voltage drop due to the long heavy duty cable is again sensed and compensated for . 

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Still fitting interior /wiring , moving to the front suspension/brakes ,and engine bay clean up , swapped headlining over (pic show mirror fit ) ,fitted some bonnet dampers and removed the strut . I need to relocate the oil cooler due to new front , fitted the mesh . Awaiting arrival of new arch liners and bits and bobs - new front /rear window seal ordered and window guy lined up to fit and seal windows - maybe Wednesday . So far no defects with the front suspension/steering at all , all bushes arms ,bearings etc good - so shocks and whifbitz ARB to fit on Monday .- zero rust !!!! 

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