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The mkiv Supra Owners Club

Big intake manifold...Traders?


JamieP

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Yes' date=' very pleased (same as Terminators). Its a high quality clone of the mega expensive Jun system. Spent some time blueprinting it to the head, went from 570 to 610bhp.[/quote']

 

I am very pleased with mine, I asked for it not to be polished, so it cost even less. I put in a cheeky offer, which was accepted. It need some work to mate it to the head, but I expected to do that with any plenum runners as my head is ported. I am using a Q45 TB and it mated up perfectly. I can't remember how much it cost, but it is excellent value for money. The gasket set was quite amusing;) but not a problem as I had several spare bits of stock sets. As yet no problems but no verifiable data as yet.

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We got a Greddy plenum for the RB engine. The main advantage that I can see is it was quicker to fit, as everything was in exactly the right place so direct bolt on. My copy needed parts bit welding on to achieve what I wanted. Most of those part would have been fitted to Greddy from the factory. But my build is far from standard.;)

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Did it move your powerband to the right when you changed it, do you have before and after dyno results? Cheers!

 

every tuning book i have ever read states the power band will be pushed further up the curve with shorter intake runners, fact, so less bottom end grunt at the expense of a bit of top end, it would be nice to see a dyno graph of a single turbo before and after the "big" plenum was fitted, but i'm sure Jamies got better things to do than keep us lot amused :D, tbh i think a lot of these get fitted with very little thought of the engine tuning and more for cosmetics

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