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

kccortez

By kccortez,
in Engines & Forced Induction

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kccortez Enthusiast

kccortez

Posted
Posted

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...

bR33nt Enthusiast

bR33nt

Posted
Posted

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 Grand Master

SECURITY

Posted
Posted

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.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

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.

PM-R33 Grand Master

PM-R33

Posted
Posted (edited)

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 by PM-R33
kccortez Enthusiast

kccortez

Posted
  • Author
Posted

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 Proficient

Lukas 33

Posted
Posted
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 :blink:

JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

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

MrStabby Grand Master

MrStabby

Posted
Posted
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.

XRATED Veteran

XRATED

Posted
Posted

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 Grand Master

paulr33

Posted
Posted

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 Enthusiast

bR33nt

Posted
Posted

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...

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