Tuning a Diesel Engine with a plug in box

fivetide

pgilc1 wrote: »

Firstly, you are missing my point.

No I'm not.

You came on here about how really great a remap was

No I didn't I was here already and found the thread of interest based on my own actual experience.

and how it was so tuned to your car as to prevent any risk. This is nonsense. That level of power increase simple puts extra stress on already stressed parts - turbos, intercoolers, cooling systems, cranks, etc, etc - No matter how long the remapper strings the process out and tells you its 'optimised' for your car.

Given that the aforementioned mapper runs the quickest scooby in the UK and actually builds his own hybrid turbos etc I think I'll take his word over your uneducated thoughts any day of the week.

Therefore to be trying as you were to take some moral high ground that a £500 in this case is better is simply WRONG.

See above. Of course, you were McRae's chief mechanic when he won the WRC weren't you so you clearly speak from a position of knowledge.... thought not.

A simple - but proven - tuning box on a diesel car (as per the O/P's) is an easy and effective way to get an extra 20-30BHP and for a fraction of the cost.

That's your opinion and you are entitled to keep it to yourself.

As predicted, all of a sudden, your car had uprated brakes etc

No as predicted you didn't go back and read the thread where i'd already said it. You are starting to look silly now.

- its surprising that you didnt in your original post factor in the £500 or so necessary to upgrade 'standard' brakes to a higher standard? Thats makes your £1000 start to look totally out of perspective to a £90 tuning box.

It didn't cost that much. Again, you have no knowledge and again read the thread, I said I had the calipers refurbed and uprated discs and pads. Given these are wear and tear items and I got them as part of a group discount, plus sold the original discs to someone with an older impreza you can put your thoughts back up your rear end which you are talking out of.

If brakes and suspension on a WRX are not of any interest then that a standard WRX has much lesser brakes than the 300BHP STi then? Or very different suspension setup?

You still don't even know which model I had but yet here you are, still wittering on.

Indeed allow me to help:

Sorry fivetide. I made some rash assumptions and jumped in to give an expert opinion without actually knowing any, if not all of the facts. I still think plug in boxes are the way to go but I appreciate I shouldn't have tried to comment on things I know nothing about and certainly should have tried to do so in such a smug and patronising manner when completely unprovoked. I will of course turn off my internet until I have had the necessary personality adjustment.

Fixed your entire post for you chap.

5t.

Flearoy

I wonder how long it'd be before a SuperChips upgrade of my 115bhp Mondeo TDCi to around the performance of the 130bhp model would take to pay for itself in improved economy? I drive 20k a year and get 60mpg at the moment! Suspect it would be a long, long time.

Gloomendoom

Flearoy wrote: »

I wonder how long it'd be before a SuperChips upgrade of my 115bhp Mondeo TDCi to around the performance of the 130bhp model would take to pay for itself in improved economy? I drive 20k a year and get 60mpg at the moment! Suspect it would be a long, long time.

If it improves your mpg by 10% it would take about two years with diesel at £1.36 a litre.

Gloomendoom

pgilc1 wrote: »

Extra power when used = extra braking required to slow it down. Extra braking = extra heat in brakes + extra wear. Extra heat = less ability on standard brakes.

It takes the same energy to stop from any speed you care to choose... no matter how fast, or slow, you got to that speed.

More power does not necessarily lead to greater brake wear.

Wh05apk

Gloomendoom wrote: »

If it improves your mpg by 10% it would take about two years with diesel at £1.36 a litre.

Would you really get an extra 10% mpg?

I have used a tuning box, and a remap on different cars, and not driving any differently they made no diiference to fuel consumption at all, although they did give a useful extra kick when needed.

Gloomendoom

Wh05apk wrote: »

Would you really get an extra 10% mpg?

I have used a tuning box, and a remap on different cars, and not driving any differently they made no diiference to fuel consumption at all, although they did give a useful extra kick when needed.

I've used both too and I have a remap on my current car. I haven't noticed any improvement in fuel consumption... but then I regularly use the (lots of) extra power. Personally, I remain extremely sceptical of any claims of better fuel consumption. Other people, however, seem convinced that they get better mpg with these tuning methods.

Wh05apk

Gloomendoom wrote: »

I've used both too and I have a remap on my current car. I haven't noticed any improvement in fuel consumption... but then I regularly use the (lots of) extra power. Personally, I remain extremely sceptical of any claims of better fuel consumption. Other people, however, seem convinced that they get better mpg with these tuning methods.

.............but then some people also claim an extra 10% when they use "branded" fuels! I analyse my consumption quite carefully and have never found any long term benefit, other than an initial placebo effect when first using something different.

Lum

Do a blind test? Get someone else to fill up your car and not tell you what they put in it.

I doubt that effect is a placebo, it's just that the improved detergents and additives will help clean out the injectors and the like, so you'll see a small boost. It's the reason why some people run cheapo fuel most of the time, then one tank of the likes of V-Power a month just to keep the performance up.

motorguy

fivetide wrote: »

No I didn't I was here already and found the thread of interest based on my own actual experience

Of remapping NOT tuning boxes.

fivetide wrote: »

Given that the aforementioned mapper runs the quickest scooby in the UK and actually builds his own hybrid turbos etc I think I'll take his word over your uneducated thoughts any day of the week.

If i'd a pound for every time i'd heard that a local remapper had the fastest subaru in the uk.... :rotfl:

Irrespective of which, simple intelligence would tell you that putting an extra 35% power and maybe at times 50% torque through standard parts is, as some point, going to end in tears.

fivetide wrote: »

See above. Of course, you were McRae's chief mechanic when he won the WRC weren't you so you clearly speak from a position of knowledge.... thought not.

Are you saying that McCraes cars just had a remap by your mate??

:rotfl:

fivetide wrote: »

That's your opinion and you are entitled to keep it to yourself.

Its an open forum, i can express my opinion which happens to be relevant to the question in hand. Unlike yours.

fivetide wrote: »

You still don't even know which model I had but yet here you are, still wittering on.

If it had 225BHP as standard, in the grand scheme of things, it wasnt much of an Impreza.

I've had various cars remapped. I've had various cars tuning boxed.

For the O/P's needs, i'd still recommend a tuning box. Though i'm sure your mate who remapped Colin McCraes rally cars and drives the fastest Subaru in the UK can no doubt make it fly....