Flapper Mod Question

[sonny184501]

Hi Guys,

I have a BF MK 2.5 with a ZF. I currently have:

Walbro in tank pump,

K & N Filter with F6 Snorkel,

Valve springs upgraded,

cat back dual 2.5" x force exhaust

High Flow cat,

Monza Cooler

Trans Cooler

upgraded cooler piping (plazmaman).

SCT X4 (generic 10 psi tune)

I am about to purchase:

Turbosmart Actuator (not sure whether to use 7 or 12 psi spring setup)

Deka 60lb injectors.

Then off to get it's tune, the thing I am uncertain of is: would the flapper mod be of any benefit with the standard dump? If it has any advantages I will have the flapper mod done and fit the injectors actuator and new rear housing (with the mod done) the morning of its tune.

Any input will be appreciated.

[Bellato]

Flapper mod will always help control boost better but generally is only required where you change the dump because it increases exhaust flow considerably more.

On a side note I would consider different injectors and cooler

[gaz097]

I personally would not worry about buying a actuator until you decide to port the gate, then just go the 12psi.

With your current setup of restricted exhaust and cooler setup I'd be surprised if u run much over 12psi and it will taper down not up at high rpm.

Ask your tuner though

Edited 23/03/15 01:23 AM by gaz097

[sonny184501]

Thanks guys, this has helped me to decide, I will get the actuator and set it at 7 psi with the ability to change it to 12 psi later on. I will go without the flapper mod untill I inevitably get bitten by the bug further down the track and do the cooler and the dump and set the actuator at 12psi.

Bellato in regards to the injectors, my tuner (phantom) uses the deka's hence the choice.

[Bellato]

If that's what they recommend then go with that but if you want to go more power down the track bigger injectors are a good idea and there are seemingly better brands. Maybe suggest id1000's or kpm 1000's n see what they say

[gaz097]

Why do u want to change the actuator for if your running lowish boost. Stock is Fine till the gate hole size is increased