not happy with map

ok i got a remap done on my golf and not happy with the power increase its a 1.8 20v t 2000 150 bhp std i got it on the rolling road and its only putting out 175 bhp the guy who done the remap said it might only putting out 140 bhp std is this corecct in what he is saying if so why do vw say its 150 bhp wee pay for 150bhp on ower insureince.

i am looking to get more power can anybody please advice me (eg nos bigger turbo and the best place to get them thanks

 

Whos remap is it? Should be minimum 190 bhp depending if you have a throttle cable car or the later drive by wire.

 

Mmmm. my 1.8t rolling roaded at 220bhp and was 154 standard, dont forget tho that different rollers will give out different readings, plus if you had it on the rollers on a warm day would not help the case much either

 

its a throttle cable one. if it is to be say 190 bhp and its 175 bph would it be that much of a diffrence in warm day thats 15 bhp of a diffrence

 

do a search first on this topic, may help

ideally bolting on a ko3s would be a starting point.
Not sure if nos is an optimal direction.

 

Plus the rolling road callibration, I had quiet a few rr done with my 1.8 t and they could vary as much as 20 bhp on different rollers, 220 was the best one and thats the one I'm sticking too

 

what do you think i should do then

as to a new turbo do i need to get the map done again you say a ko3 its that thebest one to get and what turbos from what cars fit the golf then cheers

 

he said ko3s, not ko3

 

oh i missed the s

 

a better question should be how does it feel driving, better by loads or hardly any?

 

MAF sensor healthy?
RR heatsoaked?

so many reasons for an apparent under read.... did you ever have this car on the same rollers before as a comparison? you presume rollers all read accurate figures.. but they dont for all manner of reasons.

"Dyno Lottery (TM)"

 

i can feel a differnce but not much at 3.5 rev thats when the turbo gets a kick i no when its at 3.5 revs the psi is 19 coz i sean that on the rolling road

the car has a decat bigger intercooler and a dump valve and the remap

what are these MAF sensor healthy?
RR heatsoaked and how do i tell if they are not healthy

 

are you sure that you can de-cat it with out problems ? i take it it was a flywheels reading of 175 bhp?

what map is it ? 19psi sounds about right for a mapped 20vt . but like bill said maff might be a issue get vag com on it and go for a drive and read the values for the maff (im sure bill will give you instructions on how to do this )

 

no that was at the wheels mate.
but like bill said maff might be a issue get vag com on it and go for a drive and read the values for the maff (im sure bill will give you instructions on how to do this )
can you help me please

 

well 175 is fine mate

 

no sorry it was 154 at the wheels and where i got the rolling road done he said it was 175 bhp

 

this makes no sense is it 154 @ the whhls or 175 ?

 

154 at the wheels then he added on so much % and sayed its 175

 

As a guide you should log 3rd gear for example rev it out from 2K onwards full throttle (private road ) and see how much max airflow your MAF reads.
~160g/s or more is not too bad for a K03s car. Significantly less however and the thing is not very healthy. Maybe cleanable with IPS if dirty, but more thanlikely needs replacement.

 

and see how much max airflow your MAF reads.
whare is it and how do i read it