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Samkk

MK7 GTI bolt on mods not adding bhp?

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Hi there,

 

I'm having trouble achieving the correct bhp when remapping my car around 50hp less than what it should be. My car currently has a 3" Miltek decat downpipe and a Forge Motorsport Intake, however the dyno figures show no changes in bhp. Stock the car dynoed at 230 and even with the intake and downpipe I am still getting 230, on stage 2 remap i am only getting 300. Any one can advise on this?

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Not sure really, an intake won't really make a great deal of difference but you should see a few bhp from the downpipe.

 

The GTI has a smaller turbo than a Golf R so I'm unsure what a GTI should make at stage 2? I wouldn't think it would make much more than 300 would it?

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could be a whole host of factors

 

who did the mapping?

where was it dyno'd and what were the conditions - possible heat soak on the dyno?

APR list the output for stage 2 gti between 320 and 335 so your figures are probably pretty reasonable

 

without seeing the dyno graph and supporting info such as boost pressure, timing etc, its not that easy to tell

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6 minutes ago, dougaberdeen said:

could be a whole host of factors

 

who did the mapping?

where was it dyno'd and what were the conditions - possible heat soak on the dyno?

APR list the output for stage 2 gti between 320 and 335 so your figures are probably pretty reasonable

 

without seeing the dyno graph and supporting info such as boost pressure, timing etc, its not that easy to tell

 

20190620_114718.jpg

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8 minutes ago, dougaberdeen said:

could be a whole host of factors

 

who did the mapping?

where was it dyno'd and what were the conditions - possible heat soak on the dyno?

APR list the output for stage 2 gti between 320 and 335 so your figures are probably pretty reasonable

 

without seeing the dyno graph and supporting info such as boost pressure, timing etc, its not that easy to tell

Also timing I think they mentioned there was a 4second knock and boost is topping at 24psi

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Not being funny but are the best people to ask not the people that mapped it? Unless you feel uncomfortable approaching them?

They have the equipment to not only do the job but tell you if there is anything holding the car back.

 

Any answers on here will be pure guess work.

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21 minutes ago, bluntcap said:

Not being funny but are the best people to ask not the people that mapped it? Unless you feel uncomfortable approaching them?

They have the equipment to not only do the job but tell you if there is anything holding the car back.

 

Any answers on here will be pure guess work.

The only reason I'm asking is because the people who have mapped my car are the ones that have pointed the fault out to me. But everything in my car is running fine, spark plugs recently changed, always running 99 octane, no error codes. So they cant figure out why the car is just not performing as it should. I thought maybe someone else may have had a similar problem so if theres anything we might have be oblivious to which could solve the issue

 

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AMD Technik at Thurrock have a questionable track record with mapping I believe, I have a couple of friends who had major issues, not had experience of them myself apart from a service many years ago on my Seat Leon but when I mentioned to friends I had another VAG vehicle they both said stay clear...

Sent from my SM-G950F using Tapatalk

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Did they monitor fuel pressure, egr temps etc.. when tuning it? Very odd that they don't know why it isn't making the power it should! I'd take it to a proper specialist like R-Tech or Vagtech and get them to carry out a diagnostic test on their rolling road. It will cost you obviously but at least you know your car is running right.

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