Maximum Boost On -9s With Standard Headgasket And Studs.

[No Crust Racing]

Too scared to crash it given the $$$ lol

All good. A few rice mods and a bit more power and maybe a track day and we'll be right.

[l0ckym]

If you do studs - the tuner can do yours first - then once he's practiced, he can do mine :-) - I found an awd dyno in town too..

[No Crust Racing]

Studs are easy. I'll do those myself.

I heard about the new dyno, but I'd rather stick with my tuner.

You want this exhaust or what

[fatz]

What your doing is wasting time

Just put some -5s on

Simple

[No Crust Racing]

I already have these and they were next to new.

I dont need more lag.

[Dose Pipe Sutututu]

What your doing is wasting time

Just put a twin scroll turbo on, with a proper twin scroll manifold and twin gates

Simple

[fatz]

Yea single comes on harder than -9 and makes 100wk more

[NISR32.5]

Yes piss Off the -9 and buy my -5. Near new also [emoji6]

Sounds more like the power you want.

[No Crust Racing]

Twin scroll single would be ideal, but not in Victoria.

[Kinkstaah]

Just keep the -9's setup and swap when/if you get somehow EPA'ed up in Wodonga

[dgtr]

Got mine tuned at c&d motor works , did a great job!

[KiwiRS4T]

Got mine tuned at c&d motor works , did a great job!

OK where's the charts????!!

[Ambi3nce]

I was pretty happy with mine on e85 20 psi. Perfect for Streeter.

[No Crust Racing]

I'm making a few changes so hopefully my graph looks more like that soon enough.

[infamous_t]

I'lll post up my -5 result later when Photobucket is back up (in my showcase below if I forget), but Ambi3nce's -9 result looks very similar to my -5 result.

Main difference looks to be power band is on 300-500rpm sooner, and ~15% more peak torque ! (520 vs 605)

Same boost, same peak power, same ecu, same cams, same fuel, same workshop, same tuner/dyno.

...not sure if you could get much closer in terms of setup for comparison?

Headstuds & more boost should widen the gap between -5 & -9s in the top end though.

[infamous_t]

-5 for comparison, scaling looks to be fairly consistent between the two dyno charts.

[TXSquirrel]

Hi folks, Skyline newbie here, so please pardon my obviously elementary question.

I was under the impression that -9's are smallest of the bunch, smaller than -7's.  Is that incorrect?  Because I ask the vendor to quote me quickest responding/spooling Garret turbo, and he told me that's -9's.

Edited August 16, 2016 by TXSquirrel

[r32-25t]

Yes that's correct but the -7 and -9 flow pretty much the same power

[TXSquirrel]

28 minutes ago, r32-25t said:

Yes that's correct but the -7 and -9 flow pretty much the same power

I'm okay if -9's flow less power than -7's, but if -9's are more responsive then I will stick with -9's.

So with -9's on stock 440cc injectors, can I run 16psi?  I believe 16psi is the base setting for Garrett actuators.

[Hadouken]

-9's make more power than -7's

As far as size goes they go from
7-9-5-10