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 Post subject: Toyota 503E Engine ITB
PostPosted: Fri Dec 30, 2011 12:49 am 
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Joined: Wed Jul 13, 2005 12:06 am
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Location: Perth, Western Australia
Car Model: ST205
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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1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


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 Post subject:
PostPosted: Fri Dec 30, 2011 1:13 am 
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Joined: Thu Jul 14, 2005 12:44 pm
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Location: drinking devil fuel
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Shame you can't photograph the lightness :(

It must be hewn from a finely blended alloy of unobtanium, hens teeth and rocking horse poo


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 Post subject:
PostPosted: Fri Dec 30, 2011 1:44 am 
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Joined: Sun Jul 18, 2010 8:35 pm
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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?


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 Post subject:
PostPosted: Fri Dec 30, 2011 8:41 am 
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Joined: Fri Mar 31, 2006 7:29 am
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Location: Up North
Car Model: ST205
two_OH_five wrote:
It must be hewn from a finely blended alloy of unobtanium, hens teeth and rocking horse poo


Henobtaniorse ?????

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 Post subject:
PostPosted: Fri Dec 30, 2011 11:52 am 
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Location: Perth, Western Australia
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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.

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Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp


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 Post subject:
PostPosted: Fri Dec 30, 2011 12:13 pm 
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Joined: Fri Mar 31, 2006 7:29 am
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Location: Up North
Car Model: ST205
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

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 Post subject:
PostPosted: Fri Dec 30, 2011 5:52 pm 
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Location: Austria
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Hi,

absoute great part :)

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

greetz

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street legal?.....perhaps in tschibuti


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