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The mkiv Supra Owners Club

Chasing Power - When Will It End?


jevansio

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AR is 1.05, I believe. Full boost was whatever I got with a cat installed and usually about 22 psi (this is on the street), and was a bit lower RPM than on the dyno - but still 5k+ from memory (you'll have to forgive me, as it *has* been almost 15 months since I drove it last).

 

 

Not a huge hotside, for a 71mm it sounds laggy if thats a top gear test, you say you still got the cat installed?

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Not a huge hotside, for a 71mm it sounds laggy if thats a top gear test, you say you still got the cat installed?

 

Well, the cat was put back in on advisement during a period of high police scrutiny of modified cars - and admittedly strangles the whole system (laggier, lower power, less responsive etc).

Also, we didn't get a huge amount of time after it was finished (Dec) and when I left Australia (Feb) to mess around with setting everything up as well as could be - so potentially there is a bit left in it with regards to spool & boost threshold.

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