How To Get More Response From My Current Setup Without Changing The Turbo?

[kccortez]

I would love to get my setup a bit more responsive than it is now, I have a hypergear atr28/g3 highflow on an auto rb25neo. Have nistune, exhaust, t-bar boost control stock injectors etc.

Getting 230rwkw at 15psi which is great but boost doesn't reach peak till almost 4000rpm.

Would changing the boost control to ebc or changing the stock actuator help it boost quicker or is it just the size of the turbo? Anything else i can add on other than a high stall on the auto?

Cheers...

[SECURITY]

cams/gears, forward facing plenum, decent boost controller.

[kccortez]

i do think a ebc would help. Also my intercooler piping runs under the cooler so its a bit longer than it should be. would changing this have a decent effect?

[bR33nt]

shorter cooler pipen wil help a lil bit, dont go ebc,...... that equals more lag and spikes then tpeice, (been down the road myself $400 ebc = shit compare to $20 mech T-peice) maybe ur manifold aswell?

[SECURITY]

go with a decent EBC and you will notice a difference. with a t-piece you cant factor in the boost drop off that usually happens higher in the rev range, EBC can factor all this in.

[MBS206]

Change IC piping.

Change plenum

Change Cam gears

Use a decent tuner.

[R31Nismoid]

4000rpm/15psi is average for 230rwkw.

Are you sure the actuator on there is solid and holding the gate shut? A few GCG hi-flows suffered from this in the earlu day where the preload was not enough.

[wolverine]

Wastegate pre-load set up correctly?

What are others getting with this bushbearing turbo?

[PM-R33]

Do a dyno run with a boost plot. Watch what it is like and it will tell you if a decent EBC will help you. If the boost plot comes on nice and strong and holds boost to redline than atleast you know an EBC will not help you.

I agree that 4000rpm to hit 15psi on a highflow is a bit average.

Edited December 21, 2009 by PM-R33

[kccortez]

Regarding tuners i have used both status tuning and chasers and their both excellent tuners. All i know regarding the actuator is that its the stock neo one. would this be creeping open? dont know what the standard tension is but have heard of people using 14psi actuators?

[Lukas 33]

Regarding tuners i have used both status tuning and chasers and their both excellent tuners. All i know regarding the actuator is that its the stock neo one. would this be creeping open? dont know what the standard tension is but have heard of people using 14psi actuators?

Ask trent what he thinks about it then. Im sure he has a big wealth of knowledge

[JonnoHR31]

take the vac line off the actuator and see what rpm you hit your target boost. then see what sort of difference there is between that and what it normally is

depending what the tune is like atm, more timing coming onto boost can make a huge difference. i've added more than 20degrees of timing coming onto boost on my car from where a "professional" tuner had it, car feels completely different

[R31Nismoid]

There can be reasons for doing things, let that be said.

[JonnoHR31]

yes there can, such as doing a quick job because its a busy day

[MrStabby]

take the vac line off the actuator and see what rpm you hit your target boost. then see what sort of difference there is between that and what it normally is

Due to potential danger of this IMO its a bit reckless to suggest it without mentioning how to avoid the risk, so you should add to that "back off a soon as you hit you hit 15psi, or you could potentially damage the motor". And maybe also what this will achieve - "if the boost comes on earlier then you have a boost control issue. ". Perhaps the OP knows these things, perhaps not.

shorter cooler pipen wil help a lil bit, dont go ebc,...... that equals more lag and spikes then tpeice, (been down the road myself $400 ebc = shit compare to $20 mech T-peice) maybe ur manifold aswell?

I disagree. A PROPERLY SETUP EBC will work at least as well as a t piece, and should work better.

[HEKT1K]

don't the hypergear turbos usually come with actuators?

maybe your standard 5psi actuator isn't up to the task

[bozodos]

would he be better off with say a 14psi actuator or EBC?

[XRATED]

Nitrous Oxide! it will bring it on REAL quick!

3lt bottom end will too.

Port work and cams

Higher static CR

Better bottomend/off boost tuning

Cam gear adjustment

Ball bearing core and billet comp wheel

Methanol and a bunch of timing

Wire the wastegate shut

Bigger/better dump pipe and exhaust set up

Heavier right foot

Get a bigger actuator before you get an EBC.

OR

Live with it... you have to sacrifice somthing for more power.

[paulr33]

check the actuator and preload

check diff gears (manual has different to auto)

check tune

check tune

check tune

did i mention check the tune? ignition timing plays a bit part in how the car performs and more importantly comes on boost

check basics, check base timing with a timing light and make sure its correct , ie sluggish timing makes the car perform low across the board

i assume you want more responsivenesss since the turbo has been fitted

so we can assume its not an actual car problem, but more of a tune related problem, since the new turbo went on

so either the turbo is junk or the tune is poor or both

[bR33nt]

I disagree. A PROPERLY SETUP EBC will work at least as well as a t piece, and should work better.

Lol at least as well?? its $400 compare to $20 ??

if he has a boost holding issue it can also be an erray of things...