Diy Tuning

[xr6tForMe]

Great stuff Rob/demon1300! 

 

I am hoping to take the plunge with tuning my own car in the future as well.

Look like you have made a very good start.

What you found would make you wonder about how many paid for tunes have problems.

[rollex]

Lets be honest, tuning is difficult. Getting a car running is easy, but properly tuning a vehicle is difficult and requires lots of experience. Most mechanics don't have this experience, nor do they have a good mentor hence the result is you get a car that runs "alright", but is sub par compared to the original factory tune.

 

Unless people are tuners themselves they won't even know that their tune is sub par, because of this the tuners get minimal bad feedback which self reinforces their bad tuning skills.

 

Even if you are smart and have a formal education in these areas without the hands experience (which without a dyno is very difficult to get) and a good teacher your first tunes will be subpar. All a learning experience though, unfortunately a lot of people learn on customers cars. Not many people do what Jet for example did and buy a test car/dyno to teach themselves.

Edited 18/11/16 01:01 AM by rollex

[JETURBO]

You will all "eeekkk" at who had tuned his car previously as they hold arguably the fastest reputation in the land 

 

right or wrong there's zero need to do some of the things they had done and it's all very common in big workshops doing "rush" tuning ( some of the things that were done ) 

 

the problem is his car's not running right and we will help him get it to a point where it will  

 

ps I'll get back to that email last night this arvo, just on the dyno tuning some black BA turbo hey @Box stock T.  

[rollex]

What specifically are the sort of mistakes that were made? Not looking to point fingers just use it as an opportunity to learn some more things to avoid.

[turbotrana]

I do recommend the SPA Turbo VLRPF204 adjustable fuel pressure regulator. I have been using it for 2 year and bolts straight in pretty much.

http://www.ebay.com.au/itm/VW-GOLF-Passat-1-8T-in-rail-Adjustable-Fuel-Pressure-Regulator-FPR-VLRPF204-/182191670350?hash=item2a6b78444e:g:VGoAAOSwCGVX9UPt

 

They are cheap also.

 

Your trims are way off.

 

Start with a stock tune and scale the injectors.

 

An FG engine is well protected, it will pull all timing on a stock map. Don't be scared, one step at a time, just make sure your fuel system is set up right.

 

 

Read everything on the HP tuners forum. Everything you need to know is there or on the net.

[Puffwagon]

4 minutes ago, rollex said:

What specifically are the sort of mistakes that were made? Not looking to point fingers just use it as an opportunity to learn some more things to avoid.

 

 

5 hours ago, demon1300 said:

Injector voltage offset data looks to have been zero'd.

Knock retard had all but been disabled, with total timing influence taken down to 1deg

[rollex]

Why would someone zero the injector voltage offsets? It just sounds like a bandaid to having incorrect slopes?

[Puffwagon]

2 minutes ago, turbotrana said:

An FG engine is well protected, it will pull all timing on a stock map.

 

 

Except when the tune has been set up to only pull a max of one degree of timing.

[Puffwagon]

Just now, rollex said:

Why would someone zero the injector voltage offsets? It just sounds like a bandaid to having incorrect slopes?

 

It wouldn't help anything.

 

No offset means that as soon as you turn on the headlights your car leans out slightly.

 

Imagine what would happen if you had a fully sick stereo uley.

[rollex]

Yeah that is a crazy thing to do. Reduce the sensitivity if you've datalogged the sh*t out of it with a high end knock detection setup in a large number of conditions sure, but remove it entirely? What if your fuel pump starts to fail, goodbye engine.