1jzgte/2jzgte stock twin turbo power gains

[BlakeNZ]

correct, the E85 keeps the EGTs way lower, so should be ideal to help the ceramics live longer.
Also, though they are doing 21psi, they are not working as hard as they would be if you boosted a factory setup to 21psi. Life is much easier for them because they have no restrictions. They can breathe in easy, they can breathe out easy.
If they let go, you will be the first person i contact,E30. It was a kind offer of your spare set of turbos. I've kept it at the back of my mind.

[BlakeNZ]

And in the latest development, the stock turbo soarer (on E85) ran 11.516sec at 196km/h at Masterton yesterday, claiming the world 'stock turbo Soarer record'. Thanks for everyone who has helped withs parts, time and technical advice.

[Dell'Orto]

So time for a big single now then?

[2jayzgte]

Pics or it didn't happen!!!!

Oh... hang on


Power and boost curves, Blake's unmodified stock 1JZGTE turbos on a stock 1JZGTE (power):



Boost curve:


Awesome result, sir. Can't wait to see how it goes at the strip!

Those dyno sheets are very similar to what my car is doing on 98 and stock turbo's with about 10 KW less power but I'm only running 18-19 psi to get the 316 KW.

I've always reckoned those factory turbo's run out of puff after 6000 rpm but the mid range I think is more important for a Street car anyways.

Very interesting.

[Mr Ree]

Congratulations for having the tenacity to keep chipping away and this project, and now, finally reaching your goal, Blake

That is really impressive and I hope you can chip even more off it if you manage to get it out again this season.

[JZCrazy]

Yeah there is a bit more in it.
It will go closer to 11sec

[Lith]

And in the latest development, the stock turbo soarer (on E85) ran 11.516sec at 196km/h at Masterton yesterday, claiming the world 'stock turbo Soarer record'. Thanks for everyone who has helped withs parts, time and technical advice.

Congrats again Blake, so cool! Glad all the effort paid off, it was no trivial mission but the results speak for themselves. Pretty cool to see the results all panning out more or less in line with the forecasts discussed from the start, it certainly seemed like it would be doable on paper but nothing like the theory working out in practice

Fingers crossed you can nudge it that little bit further down, but all that has got to be bonus from here

[2jayzgte]

Congratulations also Blake I know you've toiled hard and its great to see you got the result on the dyno and the track.

I think the latter is more important.

[Lith]

I think the latter is more important.

Of course it is! The dyno result was just a good indicator that the engine room part of the build was heading in the right direction to achieve the goal the car was built for.

[2jayzgte]

I will also assume some work has gone in to set the suspension up to so he can also get the full potential of what has been achieved on the Dyno.

There's more that goes on than just in the front to achieve what he has achieved.

[Lith]

I will also assume some work has gone in to set the suspension up to so he can also get the full potential of what has been achieved on the Dyno.

There's more that goes on than just in the front to achieve what he has achieved.

Correct.

[BlakeNZ]

We replaced the aftermarket suspension with stock suspension, which raised the ride height by 25mm. This was good, as it lifted the front higher and gave the rear further downwards travel to squat. I also removed the front sway bar(massive weight saving of 3kg!) to try to get it to transfer weight to the rear more effectively, and for longer at launch. However, the 1.79 sec sixty foot time is far from stellar, and i need to do some more work in this area.
The car weighs 1395kg, with no fuel in it. It had a race weight of 1530kg (45 litres fuel and 90kg of me).

[2jayzgte]

Blake what was the power aim for those factory snails and the figure you got is it what you expected or were you expecting more with E85 ??

I see there is a Supra guy in Aussie that use a set of Hi-Flows that are 500+ HP capable and still running sequential they run a Time attack car that is cleaning up in Queensland.

https://www.facebook.com/McLaughlinMotorsport/timeline

They use a crowd in Brisbane called Munro Racing.Apparently his work is really nice and the turbo's are still really reliable while still keeping the factory response.

http://www.munroracingturbochargers.com ... CT12A.html

http://www.munroracingturbochargers.com ... zct20.html

[BlakeNZ]

we calculated we would need 320 kW at the back end to break the record. (at 1560kg race weight, with a 1.72 sixty foot time, 11.59@ 121mph)
ACTUAL 325kW race weight 1530kg 1.79 sixty foot 11.51@122mph
I was prepared to run 25psi to get it, and also prepared to put cams in, so was pretty pleased to be able to run only 21.5psi (and with stock cams) to acheive our goals.

[BlakeNZ]

so the local paper was really short of stories...and got wind of this...
https://www.google.com/url?q=http://www ... UJ4hLohDrw

[Mr Ree]

You have made the big time now, mate

Now to crack into the tens?

[2jayzgte]

so the local paper was really short of stories...and got wind of this...
https://www.google.com/url?q=http://www ... UJ4hLohDrw

NICE.

[BlakeNZ]

On my new (to me) Soarer I'll be testing a set of intake pipes, connected to the factory airbox, plus a large diameter (5") dump pipe, plus "hot pipes". In the interests of keeping it stock looking, I have swapped in a Jza80 supra intercooler (side mount, 45% more flow than Soarer one.)
Yesterday we did the base runs, for the "before" dyno. The car has a K&N panel filter in the factory airbox, a 3" exhaust, and the aforementioned side mount intercooler. Other than that it is stock.
It pulled 220 hub kW, at 12.6 psi. Peak torque (400nm) was at 5000rpm, peak power at 5900rpm. Air fuel ratios were typically rich, so the extra boost that we will gain by doing the breathing mods will use some of that surplus fuel. 11.7:1 @ 5000rpm, 11:1 from 5700rpm onwards. Photos of the pipes to come. (contact me if you are capable of posting images on the forum, and are willing to do this for me).

[Mr Ree]

Hello mate, I can upload some pics for you so feel free to email them to me when you have the time.

Also, I have a feeling this thread needs an update from you about the recent work you have been doing?