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The mkiv Supra Owners Club

Still got the supe !


jagman

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Paint …… when factory paints cars they use an automatic spray system - this uses electrostatic charged clearcoat - it is very thin and saves material cost . All clearcoats have an element of unevenness and during drying have orange peel . Manufactures grade this ,cheap cars =more orange peel . High end cars wet sand .

repainting cars always have a thicker clearcoat applied -due spray gun pressure . Once dry clearcoat can also have dust ,hairs , and pin holes .

so it’s wet sanded and inspected by eye , every square inch of it .

the first sand show any high spots or the worse areas of peel or pinholes , moving light source to check all angles . You work your way down the grades of pads in 4 stages - 2000 down to 8000 grit - the early stages you see the clearcoat coming off as a creamy white colour . You can also feel the finish with your fingers and you use fresh towels from a sealed bag - so spotless clean - any dust will cause a swirl . Then another 4 stages of cutting and polishing using different grade compounds - any pinholes need touching in with clear and repeat the process . 
best left to someone who has years doing this !! Only once all completed can you apply the wax coat ,first the hydroscopic coat -only one coat ,then apply the finish wax coats - these you can layer up - hence the large number of hours needed 

A pic of the rear side panels , the rear is about 2 inches wider than stock - but you can barely tell - you would have to put it side by side with a stock car to see it  which is exactly as I wanted it - a wide body that doesn’t look wide body - does that make sense ?

At least another week of paint polishing left - over 80 hours total !!!!!!

there is no such thing as a quick respray ,dark cars show everything!!!!!

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  • 3 months later...

The next phase gets experimental - about 4 or 5 things going in and lots of testing and data 

all are my own design and I have not seen anyone try these things out .

once I have data I will post results - much physics involved which people find boring 

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The areas I’m looking at for mods and data -

1 using a chargecooler post fmic - how much cooler is IAT and how constant ,and pressure drop - is it worthwhile 

2 fuel cooler - using cold chargecooler water via heat exchanger to cool return fuel - big pumps and 12v supply and very large injectors - return fuel temp rises - tank temp rises ,this provides less dense fuel ,vaporisation which loses octane to the charcoal canister ,higher fuel rail temp changing fuel mass vs air and vapour lock . How hot does the tank get to ? How much cooling can you add with liquid/liquid cooling ,how much det margins can you change ?

3 cylinder head temp - how high does it get under power ,how stable is it ,at what point does it climb CHT data rather than EGT 

4 enhanced head cooling using twin water stats to increase flow - how effective is this ,how much does oil temp drop and is it more stable - CHT effects ?

5 pre turbo water injection - I have my own design - how much can you alter the spool ,compressor map , turbo exit temp - this is complex - but I have a solution to the normal WI issues pre turbo - a different approach to issues of blade wear , coalescing,droplet size ,water beyond saturation.- increased det margins - on paper it should work ,but will it ? Hoping to get a 72 sized turbo to operate like a smaller 60 sized turbo in spool but with 72 boost and flow increased - reduced turbine losses - no one has tried my method on Google searches - so new territory,but still following physics and my knowledge on compressors from aviation .. if it works ,I will explain why

How much boost can you run before detonation by these methods ? How much timing can you add ? 
Syvecs and much larger injectors and fuel rail to be fitted plus a 72 precision next gen turbo - pump gas to be used 

first up 8speed and cantcu and Syvecs fit in the next few days 

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  • 4 weeks later...

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