It's really hard to tell exactly what might or might not happen depending on the mapping and how it's done, and possibly how the MAF fails, or if it's unplugged etc.
Without knowing the exact test conditions and car specs for each video I can't really say.
All I can say with any certainty is that in my little simulator doing the same run as above with a 125bhp/205lbft output the timing is almost perfect to what I'd expect.
Sorry Tom, am I your tuner? I can't find a record of your car (though I can't read your plate and don't know your full name hehe, but I've cross checked Toms, Estates in China Blue, and what I think is your reg number and no record, hmmm)
This thread is getting hard to follow hehe.
With MAF unplugged the MAF resorts back to a built-in assumption of MAF based on throttle input and rpm basically. Since the standard smoke map allows plenty of fuelling for a stage 1 remap to an extent, although trimmed back a bit on the transients and so on, it will still let a great deal of the peak fuelling requested to be delivered.
What it won't do is 'know' you have a sporty turbo for example, and so it won't assume the MAF/boost will rise as quickly. It won't know the car has been remapped, so again spool is assumed to be slower than it really is.
So in the end you might get 80% of the outright boost in power, but the last 20% might only come with the MAF working. It all depends really on the details of the tuning and MAF I guess... ie, is it really a big boost in power when replaced, or a big boost in response? Response can have a big impact on your senses so a boost in response and 5% more power might feel like a LOT more than it is!
Obviously when you are on stage 2 when the MAF is dead you'll really notice the difference as the built-in maf map is way out!
Generally though your transient response won't be as good as it should be, so it'll feel laggier and less sharp, and take longer to really get going.
Your mpg might suffer in some cases I suppose.
Hmmm
Dave
Without knowing the exact test conditions and car specs for each video I can't really say.
All I can say with any certainty is that in my little simulator doing the same run as above with a 125bhp/205lbft output the timing is almost perfect to what I'd expect.
Sorry Tom, am I your tuner? I can't find a record of your car (though I can't read your plate and don't know your full name hehe, but I've cross checked Toms, Estates in China Blue, and what I think is your reg number and no record, hmmm)
This thread is getting hard to follow hehe.
With MAF unplugged the MAF resorts back to a built-in assumption of MAF based on throttle input and rpm basically. Since the standard smoke map allows plenty of fuelling for a stage 1 remap to an extent, although trimmed back a bit on the transients and so on, it will still let a great deal of the peak fuelling requested to be delivered.
What it won't do is 'know' you have a sporty turbo for example, and so it won't assume the MAF/boost will rise as quickly. It won't know the car has been remapped, so again spool is assumed to be slower than it really is.
So in the end you might get 80% of the outright boost in power, but the last 20% might only come with the MAF working. It all depends really on the details of the tuning and MAF I guess... ie, is it really a big boost in power when replaced, or a big boost in response? Response can have a big impact on your senses so a boost in response and 5% more power might feel like a LOT more than it is!
Obviously when you are on stage 2 when the MAF is dead you'll really notice the difference as the built-in maf map is way out!
Generally though your transient response won't be as good as it should be, so it'll feel laggier and less sharp, and take longer to really get going.
Your mpg might suffer in some cases I suppose.
Hmmm
Dave