Sorry to hear that Joe.. F'king shocking mate. Let me know how you get on with Turbo Dynamics.
had a chat with Tom this morning and predictably this is the position.
whilst he accepted its ''possible'' the VNT actuation could be incorrectly adjusted he said its unlikely, and either way the cost of removing and re-fitting the turbo will be ''down to me'' although they are ''happy to test it again''
now seeing as all the turbo related sensors,and hoses were replaced with new when the new turbo was fitted I am at a bit of an impasse...the only ''unknown'' is the red dot map.
when I say unknown what I mean is its not the same map as on Damien's car. so the only way for me to get a straight forward comparison is to load Damien's map onto my car. I trust red dot's work but I need a direct comparison in order to progress.
so the plan is this.
down to AL south tomorrow where Loz will re-check all the work done and make sure nothing silly is going on.if no physical reason for the late boost is discovered then it will be on with Autolusso duplicate map from Damien's car.
same turbo spec+ same map should = the same response.
if it doesn't then we can be sure that its the turbo that is at fault.
turbo dynamics make a lot of turbo's and are confident in the work they have done stating that generally when things go wrong is is down to something else, some disturbed hoses or a sensor fitted wrongly or indeed the wrong spec sensor or that the turbo was damaged during fitting.
to this end I will get loz to fit a Genuine Alfa maf and map as a ''control group'' (although all mine are genuine Bosch one with the same part number) Tom's logic s that if I am prepared to accept a brand new turbo can be faulty then I have to also accept that it could equally be a faulty new maf or map sensor or that the VNT actuator is not moving freely.
I can't really argue with that logic and its easier to rule them out with temporary replacements than to go down the route of taking the turbo off the car and it makes sense to do this first as its much cheaper.
can you imagine how I would feel if after removing it, re -fitting it and finding myself in the same situation again it then turned out to be a faulty new MAF from eurocarparts....
so that's the situation as it stand's whatever way you look at it it's more expense for me....I just could live with it and maybe fit the stainless steel turbo pipes from Italy to further reduce the lag.
however it has to be said 177 BHP and 267.4 ft -Lb before the red dot map is disappointing fro the new hybrid even though it just had AL's 180 map. there SHOULD have been some improvement. i think the midrange was much punchier and that was what I assumed would be be extended across the entire rev range when it was mapped.
if you look pre and post map the curve is identical implying that the power train for some reason is not responding to the altered fueling in the way it should.
if i didn't know better and I saw this curve on another car I would diagnose maf or VNT as all the power comes in after 2300 k.....
post red dot map a peak figure of 196.4 and torque of 314.1 ft-Lb is disappointingly low for a car with a brand new hybrid turbo a de-cat down pipe and a custom map. its not the peak figures that I am annoyed about its the not very broad or flat curve and the late boost.
there are standard cars pushing that out all day long with no mods and a stock turbo.
It SHOULD be better for the money I have spent.
on the left is after red dot map...both are with hybrid...on the right is AL map that had previously been on the car with the standard turbo for 30k...must say this map with the standard turbo was not at all laggy,pulled fom 1500 rpm and was much freer in its response...I think the peak power was higher as well but must admit that is just ''butt dyno''
the car was much more fun to drive though as all the gears felt linked up.
it now feels like 1 and 2 are separate...and requires a lot of gear and right foot work to keep it on boost. in fact i have generally been selecting a gear lower than i would normally to keep the revs up an the car on boost.
its early days but fuel economy looks as though it is suffering.
thoughts on a postcard please gents.