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Toyota 503E Engine ITB
http://www.gt4dc.co.uk/forum/viewtopic.php?f=13&t=5328		 Page 1 of 1
Author:  TrackToyFour [ Fri Dec 30, 2011 12:49 am ]
Post subject:  Toyota 503E Engine ITB
Thanks to a recent tip-off I managed to pick up this Toyota independent throttle body and plenum assembly from US fleabay for a bit of a bargain.

It was originally fitted to the 900bhp 2.1 litre turbo Toyota 503E racing engine which was developed from the 3S-GTE and used to power the Toyota Eagle sportscar in the American IMSA series in the early 1990's. It will need some slight modification to fit a 3S-GTE head. Its all cast in magnesium so the whole assembly only weighs 5kg, amazing :) There may not be enough space for this in a GT-Four engine bay but if it can handle 900bhp then who cares :lol: I can always build a car around the engine!

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Toyota Eagle MkIII IMSA GTP being demonstrated at the Goodwood Festival of Speed in 2005

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Close up of 503E engine and plenum in the Toyota Eagle

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Author:  two_OH_five [ Fri Dec 30, 2011 1:13 am ]
Post subject: 
Shame you can't photograph the lightness :(

It must be hewn from a finely blended alloy of unobtanium, hens teeth and rocking horse poo
Author:  e834fpb [ Fri Dec 30, 2011 1:44 am ]
Post subject: 
would these be a big upgrade compare to single throttle body,
didnt the later corolla wrcs use a similar a set-up

are you in perth or uk too by the way?
Author:  Insanity-74 [ Fri Dec 30, 2011 8:41 am ]
Post subject: 
two_OH_five wrote:
It must be hewn from a finely blended alloy of unobtanium, hens teeth and rocking horse poo


Henobtaniorse ?????
Author:  TrackToyFour [ Fri Dec 30, 2011 11:52 am ]
Post subject: 
Yes, the later Corolla WRC with the Lexus derived engine used an ITB for better throttle response. I think Gary posted a diagram of it a few months back.
Author:  Insanity-74 [ Fri Dec 30, 2011 12:13 pm ]
Post subject: 
TrackToyFour wrote:
Yes, the later Corolla WRC with the Lexus derived engine used an ITB for better throttle response. I think Gary posted a diagram of it a few months back.


Did it?? i thought it used a double inlet plenium from a single throttle body?? although I'm probably wrong but thats whats in my mind at the moment.

Its strange this has come up as just the day before yesterday I was thinking about the possibilities of making throttle bodies for a ST205.

Edit...just found the link...it did in deed use throttle bodies....hmmmm brain working.

http://www.gt4dc.co.uk/forum/viewtopic. ... 1d6b5f3f84
Author:  Sunny [ Fri Dec 30, 2011 5:52 pm ]
Post subject: 
Hi,

absoute great part :)

but it looks more then just a little work to get it mounted

greetz
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