Fiesta ST 1/4 mile BigBoost Turbo kit testing

[juan@bigboostturbo]

Hey guys, new to the platform coming from BMW tuning scene and adopted the Fiesta ST development since early this year. We have been getting great results so far on this stock engine car and fully building it now to actually push the potential on this new turbo kit.

Fiesta ST YouTube Video 1/4 Mile

 

[Jabbit]

Any more details?

 

[Coyote Chaser]

Hey guys, new to the platform coming from BMW tuning scene and adopted the Fiesta ST development since early this year. We have been getting great results so far on this stock engine car and fully building it now to actually push the potential on this new turbo kit.

Fiesta ST YouTube Video 1/4 Mile

Awesome! Would be a big hit at the NMRA Ford Fest!!

 

[AzNightmare]

Seems like this turbo has caught Adam's attention...

 

[dhminer]

Glad to see a new face in the fiesta world and to have a new turbo coming. Looking forward to more details

 

[AzNightmare]

Adam is taking a big dump on it, lol.
Hope Juan has a thick skin.

 

[juan@bigboostturbo]

Adam is taking a big dump on it, lol.
Hope Juan has a thick skin.

If he thinks he can talk s**t on us so easy it ain't gonna be so easy. He is being unprofessional in every way you look at it, the way he responds to us and to our customers and how he makes incorrect assumptions about us. He is just keyboard sh**ting on us and if he wants to prove his point he better bring his S280 car out which supposedly will beat ours...

 

[thecman02]

Following this post. Its nice to see a bolt on 50lb/min turbski. I'm assuming you guys are chillin around 400whp right now?

 

[carnufex]

following, just got my s280 a few months ago but would love to hear how this competes with it.

 

[jeff]

If everyone could just enjoy what they have and quit competing for the biggest dick they'd probably be much happier.

Good luck OP with the new venture. I've been here a little while, rule #1 is keep it under 375 on stock engine or kaboom.

 

[grumpycat]

Should I upgrade from my 335whp s280 hmmm...BigBoost Stage 3 turbo kit 2014-2019 Fiesta ST *FREE SHIPPING* – whoosh motorsports (whoosh-motorsports.myshopify.com)

View: https://youtu.be/Wl5pusCNbw4

 

[Jabbit]

400+ hp and revving out to 7400 rpm. How long will this engine last?

 

[AzNightmare]

Should I upgrade from my 335whp s280 hmmm...BigBoost Stage 3 turbo kit 2014-2019 Fiesta ST *FREE SHIPPING* – whoosh motorsports (whoosh-motorsports.myshopify.com)

View: https://youtu.be/Wl5pusCNbw4

View attachment 51654

I think the real question is what driving dynamic do you want... This turbo is like traditional BT that drives tame until 4k. More power, more lag.

 

[carnufex]

what psi is 410whp? Adam made over 400 on the s280 running like 36psi or some shit. Is this with injectors+hpfp or aux fuel?

For reference:

View: https://www.youtube.com/watch?v=EIvE7wkGkI8

 

[Coyote Chaser]

what psi is 410whp? Adam made over 400 on the s280 running like 36psi or some shit. Is this with injectors+hpfp or aux fuel?

36 psi!?? That's a lot of restriction and/or back pressure!
Does anyone know where the boost pressure is measured? If it is measured at the Intercooler outlet, then your boost pressure is pushed up, when your thottle plate (ETC) opening is reduced by your ECU, as it attempts to reach the programmed/desired boost level. But, how does that increase performance?
I really don't know, it all seems counter productive.?

 

[jeffreylyon]

36 psi!?? That's a lot of restriction and/or back pressure!
Does anyone know where the boost pressure is measured? If it is measured at the Intercooler outlet, then your boost pressure is pushed up, when your thottle plate (ETC) opening is reduced by your ECU, as it attempts to reach the programmed/desired boost level. But, how does that increase performance?
I really don't know, it all seems counter productive.?

It’s measured in the manifold, downstream of the throttle.

 

[Coyote Chaser]

It’s measured in the manifold, downstream of the throttle.

And that's where it should be! So 36 lbs is 36 lbs to the head. Has anyone ever put a back pressure gauge between the cylinder head exhaust outlet and the turbocharger's turbine?
Having a hard time wrapping my head around this, thanks for the help guys!!

 

[grumpycat]

400+ hp and revving out to 7400 rpm. How long will this engine last?

@21psi..good question

 

[Jabbit]

No the "411whp" (lol) is at 28-29psi per the video. Really hard to hear since the background music was so loud.

 

[AzNightmare]

what psi is 410whp? Adam made over 400 on the s280 running like 36psi or some shit. Is this with injectors+hpfp or aux fuel?

For reference:

View: https://www.youtube.com/watch?v=EIvE7wkGkI8

Is that normal for his speedometer to go to 55 at the top of 2nd, and then dip back down to like 45 after he puts it in 3rd?

Also for those ready to upgrade past stock fueling, is Injectors+HPFP or Aux Fuel two different build paths? Where does Single Port/ 4 Port fall in? I hear these terminologies, but I'm not sure what any of it really means. Is there a thread that explains more on this topic?