Jump to content

Recommended Posts

  • New Member
  • Member For: 7y 3m 27d

Hi Guys,

Being new to this site I was hoping this would be something that some of you guys have come across as I'm at a bit of a deadend with this issue.

I have a 2012 fg xr6 turbo ute, Love the car. I'm chasing around 350kw at the wheels. Now its manual with 95,000ks. It went in for a stage 1 power upgrade a a very well established and known workshop (guys were great there) that I wont say where. it was put on the dyno with only about 215 kw at the wheels. They said its below standard! on went a venom cat and 1000cc injectors and tune.

Result... about 240kw at the wheels. I was shocked. They checked alot of things ie cracked pipes, exhaust and so on. No result.

The car drives somewhat sluggish and im getting fullboost (16psi) around 4200rpm. Also it never breaks traction.

Has anyone come across this before?

Please help as Im unsure whether to keep going with this car or sell up.

Link to comment
https://www.fordxr6turbo.com/forum/topic/93668-low-power-and-loss-of-power/
Share on other sites

  • less WHY; more WOT
  • Site Developer
  • Member For: 17y 1m 1d
  • Gender: Male
  • Location: Melbourne

:Welcome2FordXR6t:

 

215 is below standard. They come with about 220-240 standard. But it's not a problem to be a bit below standard as it may have been a "Friday" build.

 

The stock fuel system in the Ute might be holding it back... But 16psi is wayyyyyyyyyyyy too much boost for that much power. I'd be checking for a vacuum leak, first of all. Then check the coils and plugs.

  • New Member
  • Member For: 7y 3m 27d

I'm guessing if it was electrical I'd feel it as I've had split coils before and that's easy to spot.

However the vacuum might be a goer. my boost gauge doesn't show ANY vacuum at all!!

How do I check for a leak though?

  • less WHY; more WOT
  • Site Developer
  • Member For: 17y 1m 1d
  • Gender: Male
  • Location: Melbourne

Spray soapy water around the intake manifold and connections off it, start the car and check for bubbles.. Thats one simple way.

  • Gold Donating Members
  • Member For: 10y 3m 12d
  • Gender: Not Telling
  On 14/01/2018 at 4:44 AM, k31th said:

Spray soapy water around the intake manifold and connections off it, start the car and check for bubbles.. that's one simple way.

Expand  

Dude a vacuum leak sucks air in, not blows it out.

 

Use ether in a can to find vacuum leaks. Spray it around gaskets and connections etc and if the idle increases then you know there is a leak there.

  • Gold Donating Members
  • Member For: 10y 3m 12d
  • Gender: Not Telling

Not really, it's not very flammable. 

 

Edit: Removed link cos it was good for sfa :oops:

Edited by Puffwagon
  • less WHY; more WOT
  • Site Developer
  • Member For: 17y 1m 1d
  • Gender: Male
  • Location: Melbourne
  On 14/01/2018 at 4:50 AM, Puffwagon said:

vacuum leaks air in, not blows it out.

Expand  

Works fine as a bit of throttle movement changes the vacuum pressure and of that extra air pressure on top of idle vacuum, it can leak out the same areas you said to check. It's not perfect, it will do the job. 

  • Gold Donating Members
  • Member For: 10y 3m 12d
  • Gender: Not Telling

You need positive pressure to create bubbles. I spose you could spray it with a thick soap mixture then quickly run to the cabin, rev the crap out of it then run back and check it.

 

Just use ether, it is designed to start a motor and it works well.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
×
  • Create New...
'