Boost tap's, yes or no?

[ben-jamminn]

The rex i just bought has a turbosmart boost tee fitted, Am I better off putting it back to factory?

[Guest]

what boost is it running?

-smurff

[Scoobydoo]

They are okay to use as long as it's not set stupidly high. They are a cheaper way of getting more boost as opposed to using electronic means.

[Guest keltik]

Cheap and when set up well they work. Well mine did. Ive got nothing against them.

I heard rumours that youl get earlier spool up with the factory boost solenoid compared to a tap running the same pressure but have never verified it

[Andrew NR]

 keltik said:

I heard rumours that youl get earlier spool up with the factory boost solenoid compared to a tap running the same pressure but have never verified it

I get faster spool with the boost tap even when running a few PSI more than stock.

[DRFVDR]

 Andrew NR']

[quote name='keltik said:

I heard rumours that youl get earlier spool up with the factory boost solenoid compared to a tap running the same pressure but have never verified it

/quote]

I get faster spool with the boost tap even when running a few PSI more than stock.

Yup that is my case as well Had a boost tap in the Legacy and it was set at 15 Psi,Had way faster spool up compared to no tap,from my understanding it is because it bleeds of boost until the set pressure before allowing any boost to the waste gate, hence the gate does not "creep" allowing full usuage of available exhaust gases

[ben-jamminn]

my gauge is in kg/cm2 and it was running 1.2 kg/cm2 which is 17psi when i got it but i have wound it down to 1 kg/cm2 (14.2 psi) as i thought 17 was too high for standard setup.

[ReubenH]

 

Boost tap's, yes or no?

No

[Koom]

 ben-jamminn said:

my gauge is in kg/cm2 and it was running 1.2 kg/cm2 which is 17psi when i got it but i have wound it down to 1 kg/cm2 (14.2 psi) as i thought 17 was too high for standard setup.

Boost taps are fine if used correctly but if you've dropped it back to 1 Bar there's not going to be much difference between using it or the factory solenoid. Good as a cheap way to gain a couple of psi.

[Guest]

 ben-jamminn said:

my gauge is in kg/cm2 and it was running 1.2 kg/cm2 which is 17psi when i got it but i have wound it down to 1 kg/cm2 (14.2 psi) as i thought 17 was too high for standard setup.

17 is fine for an sti

Manual boost controllers are great bang for buck - as said above as long as u don't go crazy but the same can be said of any boost controller.

If your running 14 u may as well return to the factory setup

edit koom beat me to it !

[WRXER]

+1 as Koom mentioned, I had one on my previous wrx.

[ben-jamminn]

 Qwerty']

[quote name='ben-jamminn said:

my gauge is in kg/cm2 and it was running 1.2 kg/cm2 which is 17psi when i got it but i have wound it down to 1 kg/cm2 (14.2 psi) as i thought 17 was too high for standard setup.

/quote]

17 is fine for an sti

Manual boost controllers are great bang for buck - as said above as long as u don't go crazy but the same can be said of any boost controller.

If your running 14 u may as well return to the factory setup

edit koom beat me to it !

17 is ok for a sti? how much is too much?

[Guest]

On a stock v4 engine i wouldn't go higher than 18

[G-unit]

just wondering if the previous ownerhas installed it because the stock 1 is buggered

[Andrew NR]

 Qwerty said:

On a stock v4 engine i wouldn't go higher than 18

What about a stock BF5 GT engine?

[G-unit]

 Andrew NR']

[quote name='Qwerty said:

On a stock v4 engine i wouldn't go higher than 18

/quote]

What about a stock BF5 GT engine?

i kept mine on 12, some are on 14psi tho

[BC5RA]

 Andrew NR']

[quote name='Qwerty said:

On a stock v4 engine i wouldn't go higher than 18

/quote]

What about a stock BF5 GT engine?

1 bar.

[Guest keltik]

I ran 14 with no troubles. It didnt like 16psi as much.

[MercuryFree]

 G-unit said:

just wondering if the previous ownerhas installed it because the stock 1 is buggered

Yeah that's why I installed mine.

[swiftbrad]

isnt the whole boost tap thing a bit dodge as in boost spikes, sure you get the initial setting right but it can fluctuate greatly. Surely you'd go electronic if you spend money on the car anyway and want it done right

[WRXER]

Can do but I had no issue at all personally on my previous wrx, I never had massive boost spike. Maybe only 1 pound in winter, hence I'd adjust it down slightly. It's best used I find to adjust the boost slightly and well within the limits of the engine, ie not set it just before boost limit.

[MercuryFree]

 swiftbrad said:

isnt the whole boost tap thing a bit dodge as in boost spikes, sure you get the initial setting right but it can fluctuate greatly. Surely you'd go electronic if you spend money on the car anyway and want it done right

I've set mine at 13psi. Boost gauge has never ever gone over this, so I guess if you get a well made one (mine's a turbosmart) maybe it's less of an issue?

[nt_a_foz]

it also depends how you plumb it in youve got to bypass the factory controller completely otherwise it interfers and causes spikes etc

[DRFVDR]

 nt_a_foz said:

it also depends how you plumb it in youve got to bypass the factory controller completely otherwise it interfers and causes spikes etc

+1

i had this issue while running the factory controller as well ...

[G-unit]

also had mine on 12psi never spiked, is a racepro 1, should put it in the sti