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The mkiv Supra Owners Club

Luc's SRD1XXX Supra


Luxluc

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  • 2 weeks later...
11 hours ago, Noz said:

Plush. Loving them.

Actually like the cage too. Didn't realise you had one. Is that a requirement for any of the regulations for the races you do?

For the races, I wanted a bit of safety. Although a full cage would be better, it would be less practical.

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3 hours ago, Noz said:

Lux. Do you think a waste gate on your turbine exhaust housing would reduce any back pressure, from the top end drop off on boost.

@Mike2JZΒ might have some thoughts as well.

Just a thought I had on the back pressure situation.

I will let @Mike2JZΒ comment.Β 

I run a SRD 60mm external wastegate.

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Ive never tried to be honest so couldnt say.Β 

I can't imagine it will make much difference if I were to take a guess though. Most of the flow restriction is from the exhaust wheel size and A/R turbine limitations rather than an issue with gates regulating boost. If the gate welded to housing did increase the A/R or something along those lines then you will probably sacrifice response on the low end so kind of pointless, might as well run a larger turbo.Β 

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