Hey B24,
 
here are two sets of the black top throttle bodies. Hopefully you find this post fast enough...
 
http://www.ebay.com.au/itm/JDM-Toyota-levin-trueno-blacktop-4age-throttle-body-itb-ae101-ae111-corolla-20v-/151206742733?pt=Motors_Car_Truck_Parts_Accessories&hash=item23349fcacd
 
and
 
http://www.ebay.com.au/itm/JDM-Toyota-levin-trueno-blacktop-4age-throttle-body-itb-ae101-ae111-corolla-20v-/151206741627?pt=Motors_Car_Truck_Parts_Accessories&hash=item23349fc67b
 

What power gain did you get with your setup over the origional engine?

Thanks for all that mate. Certainly some food for thought.
 
After spending the weekend at the Bathurst 12hr I managed to spend time at the Donut King garage and get some facts and figures on the 2GR. The Lotus Elise runs a 2GR with a Harrop Supercharger with 8psi producing 420 hp all day long for the 12hr race. Track temp was 56 degrees, ambient temp was 36 degrees. Car ran with no issue for the entire weekend. There was also talk of results of the following: rising the boost and E85 which then produced 680hp.
Massive power but not required for my application.
This car also runs a single throttle body which looked like 75mm.
Even with the 420hp it was very quick. A estimate of 260 kph on Conrod straight as it was a little slower than the GT3 cars.
It also won its class which is a thumbs up for Neil and the crew who prepped and maintained the car for the weekend.

I can vouch for the Harrop blowers effectiveness :)

I never found out what happened to your last 3SGTE. What went wrong?

I feel your pain. I've been there.
Each build I do, I do more of it myself and I think that's the key to success. When you do it yourself, you are careful and take everything into account and there is no risk of the apprentice working on it at a workshop or someone forgetting to tighten a bolt.
Good luck with the new engine.
FYI my last race car was a 2L RS2000 Escort and it had Motec throttle bodies on it. I put it all together myself and power did improve over the Sierra single throttle body plenum manifold I had on it previously. I lost mid-range torque though. You really need to rev the tits off an engine with throttle bodies to get the full benefit. Make sure you change the cams when you do the build.
BTW you can get throttle bodies that don't have butterflies - when they open, it is a big hole - nothing in the middle. I can't remember who makes them though.

also guillotine throttles take up a lot more space, and barrel valves are super expensive. Heres a quick summary from jenvey:

http://www.jenvey.co.uk/j...els-or-slide-throttles

Neil only gave me the hp number and nothing else. also do not know the exact spec on the sc so its all guess work.
As for the itb's, its not top of the list. There is still the idea of running the stock lower intake with a larger plenum and a large single throttle body. The larger plenum would have velocity stacks going straight up instead of to one side for clearances.
The priority is having the engine reconditioned/built with some portwork then get it installed and running. Right now, its still sitting in the workshop waiting for the 3SGTE to be sorted before starting on the 2GR.