21 replies to this topic

[mementaurum]

Hi,

 

I live in Belgium,  and bought my second vx220, the first one was a 2.2, drove 25.000 miles with it in 3 years. A great ride! Sold it last year, felt sorry and bought a turbo.

It has 20.000 miles, needs its second service

 

Went for a dyno run today and intended an OBD tuning, results weren't what you would expect...160HP standard???????

It's like the turbo boosts at 3000 rpm, gap, 4500rpm, gap, boost! Strange. Also no whislting of the turbo

after tuning the boost start earlier, lasts longer but doesn't "whoes!". The turbo whistles.

 

I attached the file, after the re-write it was about 180 HP but at a higher RPM, Heinz Performance do know what they do.

Also the torque isn't what is should be

Does anyone know what the problem is? Please! :-)

The deal with Heinz is : go to cell "pay", go to exit, fix the problem, once fixed come back, new dyno run and read & re-write for free, incl. test drive

this is resonable. Heinz guesses that the problem could be the wastegate or an air leak

 

There is a topic on the forum : Boost Solenoid, or is it something else?

 

 

 

Thanks for reading,

 

 

[Graeme Lambert]

Certainly sounds like it could be a boost solenoid problem.

 

There is a flat spot built into the OEM map, but it should still come back on boost and make the expected power after passing through that.

 

Also, your intake pipe is it OEM plastic or a new alloy one? Not sure if collapsing boost pipe could do the same...

Edited by Graeme Lambert, 21 February 2015 - 04:22 PM.

[siztenboots]

how old is the wastegate actuator ?

[scw02102]

the standard map has a flat spot around 4500 rpm anyway and a remap will fix that 160BHP was that at the wheels or fly?

[mementaurum]

Thanks for the reply,

 

as far as I know and can see everything around the engine is standard, the car was registered in 2004,

the intake is the OEM one, in view of the low milage I guess the acurator sits there for 10 years. The 160BHP is : "on the wheels" ... I think? Picture added.

 

It is already remapped, but the 181BHP is not enough?

Monday the car goes to the technician, it needs to have it's second service (20.000 miles)

He will have a look at the acurator and perform a pressure test...ooh boy, I know nothing about this stuff

Maybe also new sparkplugs?

I'm the third owner, so no one can really know what happened, the first one sold it at 7000 miles

 

Anyway, I'll keep you all posted and give a full report

thank you

 

 on the wheels.jpg   111.11KB   12 downloads

 001.jpg   172.97KB   12 downloads

[Nev]

Making peak torque and power at 6000 RPM is unusual too. First check that the OEM rubber pipe leading from the airbox to the mouth of the turbo is not collapsing.

[Ormes]

It would probably be a decent idea to point a fan towards the IC for future mapping sessions...

[scw02102]

181bhp at the wheels is much more than 200 bhp at the fly so power sounds about right for stage 1 remap car 2 services? Car need a service every year not just the mileage Remember cam belt needs to be changed at 40,000 miles or 4 years what ever comes first

[dominik]

The antilock-bracking-system stops the turbo from boosting if front wheels stand and back wheels are spinnig. 

If thats is the reason , you should see red/orange brake light in the Dash after the dyno run.

 

How ist the feeling on the road.

 

 

[mementaurum]

[font="arial, helvetica, sans-serif;"][color=rgb(0,0,205);]Indeed scw02102,[/color][/font]

[font="arial, helvetica, sans-serif;"][color=rgb(0,0,205);]I share the same point of view and certainly if one doesn't know the car that has been bought, therefore the belt, sparks, oil, oil-filter, airfilter should be changed, and other things (?) should be checked[/color][/font]

 

[font="arial, helvetica, sans-serif;"]About de feeling on the road dominik,[/font]

 

[font="arial, helvetica, sans-serif;"]the feeling after the remap is different, better between 1500-3500 rmp, but it was not bad before, except from the gaps between the boosts that were annoying and felt a bit strange.[/font]

[font="arial, helvetica, sans-serif;"]Nothing to do with the engine but the handling is very good, it steers like it should[/font]

[font="arial, helvetica, sans-serif;"]A lot happened between the ears after ik heard the thing about the 160 BHP, and my point of view changed again after reading the post about the 180 BHP at the wheels[/font]

[font="arial, helvetica, sans-serif;"]We'll know a lot more at the end of the week.[/font]

 

[font="arial, helvetica, sans-serif;"]Anaway, there is a lot of valuable feedback! Thank You![/font]

 

 

[font="arial, helvetica, sans-serif;"]PS : the best thing to do is a ride with another turbo and than we'll know for sure. Just got feedback from the previous owner, 0-100 km/H (0-61 MPH)  5 sec. [/font]

[font="arial, helvetica, sans-serif;"]      [/font]

 

[mementaurum]

Hi,

 

just got a E-mail from Heinz Performance, the BHP measured is at the crankshaft, what now?

 

 

thanks for any reaction

[mementaurum]

This explain already a bit!? The mechanic asked if the car crossed the dessert, the air-filter was full of dirt

[mementaurum]

a picture of the air-filter

Attached Files

•  12.jpg   114.08KB   6 downloads

[dominik]

A few years ago I had mounted a foam noise killer in front of the carbon airbox I´m uisng, one day it got instable an was partly sucked in the airbox.

The result was no boost presure, no power and no error from the ecu.

 

 

Try to measure boost on the road and during the next dyno run. Perhaps with a Tech2 from a Opel/Vauxhall dealer.

Have you a possibility to do a "dyno run" on the road?

[mementaurum]

Thank you for the post!

 

I'll have a look if there is any obstruction

 

The deal with Heinz Performance is that after the car has been serviced (and checked) I could go back for a free remap, but if then it is still not right I guess they won't do that for ever,

Measuring boost presure on the road would be a good thing!! I did already recieve a lot of feedback to this topic and put your tip to the list of "things to check asap"

 

Keep you informed

 

 

 

 

[Ormes]

Jesus that air filter is shocking... looks like it has never been changed!!!  I suspect it will be the cuase of some resistance!

[mementaurum]

Hi Ormes,

 

my mechanis says it could be a ± 10 BHP loss with a very dirty air filter...

I'm curious and want to sort out where that lost power has gone , but not at any expense

 

 

[TFD]

1. Service /check components in the enginebay (Since this was allready to be done, right?)

2. Presurize the intercoolersystem for boostleaks

3. Check for a leaking blow-off-valve

4. Check boost with a gauge or something

5. Check cilinderpressure / pressuretest

 

Basic checks which doesn't hurt the wallet that much if someone has to do it for you.

160 bhp is nothing more faster than a N/A speedster, you should notice that I guess.

 

Good luck.

 

[smiley]

Also take off the pipe between throttlebody and airbox and inspect.

They can collapse.

 

[Exmantaa]

 Especially with a dirty restrictive airfilter up front...

 

But simple check if the boost reading is correct at a full throtlle run