how much bhp?

brodierx7 · August 06, 2010, 10:39:54 AM

Whats the best boost controller to go for? as i think im going to need 1! I could still hammer stock scoobys and evos but i want to make sure lol:rollin
does getting a boost controller and turning the boost up a bit make a big difference?

turbotoaster · August 06, 2010, 01:18:35 PM

your power fc commander has boost control built into it so you can adjust the boost on that, ive found to pretty good actually and consistant so theres no need to buy one unless your going for a single.

neil_jdmr · August 06, 2010, 07:43:44 PM

Just "turning up the boost" has got to be one of the rotaries biggest killers imo. To get your boost level raised it really needs a tuner to change the map for you.

Its worth you having a check on the boost settings on the commander to see if Pip has put a second set of values in for your boost. My pfc has 0.8bar setting and 0.9bar setting. Stock boost is 0.68bar

brodierx7 · August 07, 2010, 11:12:02 AM

Im getting the rex back home tonight so i will see what the settings are then. Not seen her for 2 and a half month now

lol.

brodierx7 · August 28, 2010, 11:03:10 AM

Quote from: turbotoaster;709014your power fc commander has boost control built into it so you can adjust the boost on that, ive found to pretty good actually and consistant so theres no need to buy one unless your going for a single.

how do you do this?

Aubec · August 29, 2010, 11:31:08 AM

Settings menu.

I made 293 when I got mapped by Pip last year, similar mods to you: I was running out of injector (when Pip says running out though he means mid to high 80\'s - other tuners will cheerfully run your injectors right up into the mid 90\'s and get you a bit more power).

brodierx7 · August 29, 2010, 12:33:14 PM

settings menu, and then what? if its easy i will give it a go but just dont want to do any damage.

brodierx7 · August 29, 2010, 04:37:50 PM

do i not need the boost conrtol kit to adjust boost?

Jono FD3 · August 31, 2010, 09:35:05 PM

The power FC does have a slight controle of boost, but not very acurate by all acounts..... basicaly it adjusts the voltage to the boost controle solonoid to allow more boost pressure before opening the waste gate, but this is minimul adjustment.... think about 0.8 is as far as you can go & it\'s prone to boost creep. anything above 0,8 bar they recomend an aftermarket boost controler which allows you to a: controle the boost pressure & b: how quick the actuator on the waste gate reacts.

Jono

Aubec · August 31, 2010, 10:37:25 PM

Its the small wastegate on stock twins that causes creep (boost just building and building)- the wastegate can\'t flow enough to reduce the boost. The slow-ish response of the solenoid leads to spike (rapid increase in boost but then drops back to the intended level). You can reduce creep to an extent by porting the wastegate - to deal with spike you need better (faster) boost control.

turbotoaster · September 01, 2010, 12:56:58 PM

hmmm strange, any reason why im not having these issues, my wastegates arnt ported and ive had no problems controlling boost up to 18psi on the power fc, i dont get any spikes, dipped to around 15psi couple hundred rpm before the second turbo comes on but thats about it

jackaleks · September 01, 2010, 04:09:42 PM

i don\'t really think many people run their twins past 10-12 psi, let alone nearish 20, so maybe that\'s why? i.e. you\'re pretty much pushing them right to their limit of efficiency.

creep for me is when it starts building towards 14psi, that\'s when i engage my organic boost controller

SiH · September 01, 2010, 07:19:51 PM

Quote from: turbotoaster;714281hmmm strange, any reason why im not having these issues, my wastegates arnt ported and ive had no problems controlling boost up to 18psi on the power fc, i dont get any spikes, dipped to around 15psi couple hundred rpm before the second turbo comes on but thats about it

The more boost you run, the less problems you\'ll have with creep. The more boost you want, the more gas you have to put through the exhaust side of the turbo pack, so the less it has to vent through the wg, so the less creep you get.

Removal of restrictions in intake and exhaust promote creep. You could hypothetically run a turbo with no wg at all if you were running it at it\'s limit.

m1tch · September 01, 2010, 07:35:41 PM

I hope you have an epic intercooler!

brodierx7 · September 01, 2010, 09:00:01 PM

a down pipe is on the way but im worried it might make it overboost again just like it did when i removed the cat, so had to get pip to remap it and fit a pfc. I just wonder with the current map it has will be enough to stop boost creep? if i fit it and it does get boost creep then could i just put the stock d-pipe back on and it will be ok? or is it to risky? hmmm what should i do?:3Confused:3Confused