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The mkiv Supra Owners Club

Luc's SRD1XXX Supra


Luxluc

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  • 2 weeks later...

Really incredible bay man. Modified OEM is right in so many ways. You've really kept the fashion of the bay there, with some amazing shiny modern pieces. I love how you have got everything shouting out at you, but the longer you look, the longer you spot little finishing touches.

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Will there be much to gain from changing from the HKS manifold to SRD? I always thought HKS was top of the market in terms of flow and performance..

 

Boost fell off above 7200rpm ... I hope that the SRD unit will keep boost better. Plus I had my HKS now for 10 years.

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  • 1 month later...

After the running in, we stared with the pump fuel mapping.

 

The result was very impressive : 940 bhp and 654 ftlbs at wastegate pressure (1.4 Bar) on 98 Octan.

 

Lee raised the Boost to 1.5 Bar, which gave 960bhp and 682 ftlbs.

 

We didn't push the pump map higher, as I nevertheless run Ethanol all day long. Plus, with the higher compression setup, we didn't wanna take any risks.

IMG-20190327-WA0022.jpg

Edited by Luxluc (see edit history)
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The final result of the mapping session was simply awesome : 1117 bhp and 842 ftlbs of torque.

 

Lee overlayed the dyno of my non-VVTi setup (blue curve) and the VVTi setup.

I let you guys analyze yourself .... but those VVTi heads are simply amazing.

Some figures :

- at 3000 rpm : 270tq vs 380tq

- at 3500 rpm : 330tq vs 500tq

- at 4000 rpm : 470tq vs 700tq

 

700rpm gain of spool between 3000 and 4000 rpm.

IMG-20190327-WA0063.jpg

IMG-20190327-WA0066.jpg

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That’s Awesome Luc and bet you can’t wait to get that beast out racing again now :eyebrows::trophy:

 

Great work done by the Guys at SRD :thumbs: always wondered how much difference the VVTI head would make on a decent set up and I now know. :)

 

Thank you Andy.

I knew the VVTi was a big step forward ... and SRD even went beyond.

 

Lee said that it drives like a rocket on the streets ... boost at whatever gear or rpm you are.

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  • 1 year later...

I've been looking at your dyno curve vs other 1000hp supra / cars. I'm in awe and people dont seem to point this out to other 1khp supras. I havent seen such a decent curve before.

 

What do you feel contributes to this, what main points aside from the VVTi have you found really did get spool and power to initialise mate please.

Edited by Noz (see edit history)
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