Rb20 Gurus - Help Me With My Turbo Choice!

[Wheezy]

How much for your L2 kit,? your car has a lot in it, remember you told us to dial it right back its still running in that mode yeah? pull as much low as possible at the sacrifice of top and mid. i would prob buy it.

How things change in 12 months.

Gonna keep the L2 mang, it's too good of a setup to bin.

The tune is the same after the cam gears went in and we hunted for more response. I'm still collecting parts for the factory manifold to go back on.

One day I will come to see you for an E85 tune. Probably when the manifold is back to factory.

[Roy]

I would go E85 before the plenum change. On E85 I think the top end you get from E85 may mean its worth the trade of torque at 4,200rpm. If running 98 I would go back to std plenum

[Wheezy]

I would go E85 before the plenum change. On E85 I think the top end you get from E85 may mean its worth the trade of torque at 4,200rpm. If running 98 I would go back to std plenum

Why do you say these things...

Luckily I have not spent any real money, time or effort going back yet.

Perhaps it's worth dropping cash on a better fuel system and E85 in the new year regardless and seeing what comes of it

[Roy]

Better fuel system? I kept everything 100% the same except for injectors. Same Nismo fuel pump, lines etc etc etc. Just bigger injectors and re-tuned Power Fc which I flop between 98 and E85 when I know I am not going to be near E85 (rare these days in Melb)

It made very little difference at same boost, maybe 5%, but when I wanted to run more boost it actually made more power and the extra 3-4psi meant another 30rwkws. With the std plenum it would have fattened up the mid a smidgen but typical of the std plenum at 8,000rpm it would have fallen over rather then keep on climbing-holding power

You can see the shape of the curve with std plenum (98 and 100 fuel)

Then with Plazmaman (plotted against std plenum..can see the trail in power at high rpm and the difference in response)

Then Plazmaman and E85

I am only guessing but if i still had the std lenum then you can imagine ay 200km/h it would be 30-50rwkws down on the plazmaman. So means with E85 if you keep stoking the fire you can see you have a pretty wicked spread of power making 260-300rwkws from 135km/h to 203km/h. In my books makes the car pretty genuinely fast to punt

[Wheezy]

Can't argue with that.

I will be looking at bigger injectors at a minimum. 550cc RX7 injectors on E85 will be at their limit.

There is a Bosch 023 in the tank but I've never liked the way it fit's in the cradle compared to say a Nismo unit. (Probably just me being picky).