Pro's and con's of remapping

[merlin]

Need to be a member.

I'm not overly bothered - just asking the fundamental question "is there any rock solid evidence"?

 

[Lead_Head]

Well worth it, gets rid of flat spots and smoothes the 5k kick out.

Probably less sympathetic on your gearbox, drive shafts etc though...

 

[Scottland]

Pretty sure I've seen some dyno printouts before, I'll see if I can find some later when I'm at home.

 

[Sparky]

 

[Scottland]

They're not dyno print outs though, they're from the software that comes with the kits

 

[Ev0]

I did an RR run with one of the older maps on, then at the end of the session (was the last ocuk one I went to I think) I ran it again with standard map. Nothing really in it, although the new map I've put on since feels a like pickup is a little better but doubt it's any more powerful, just a bit smoother. However the chap at powerstation said as it was later in the day, and the rollers had been moved to a different position after the first run would mean and small differences would have been hard to spot.

Personally I wasn't convinced/that impressed with it, but really I don't think just a remap is going to do wonders on these engines. But I'm happy enough with mine, goes alright.

Made use of the higher limiter a couple of times though

 

[zain]

A good remap should work wonders, in addition to the disadvantages I would have to say better breaks if your car hasn't already got them.

 

[MarkDavis]

pros

more power
more torque
improved mpg
smoother rev band

cons

void warranty
insurance increase
decrease engine longevity (debatable, but some tuners will say decrease lifetime of 3-5%...but you can't measure that really in real life, and even so 3-5% is pretty negligable)
decrease transmission longevity (especially if with a big power gain)
decreased mpg, if using the extra power a lot

Under cons, I'd also add the increasing risk of overfuelling and unburnt petrol going through the system, and increased smokey / sooty emissions. If you look at the inside of the backbox of a aggressively mapped N/A car, it will be much sootier than usual.

 

[Toker]

Under cons, I'd also add the increasing risk of overfuelling and unburnt petrol going through the system, and increased smokey / sooty emissions. If you look at the inside of the backbox of a aggressively mapped N/A car, it will be much sootier than usual.

only if its mapped badly

 

[Jonnycoupe]

Under cons, I'd also add the increasing risk of overfuelling and unburnt petrol going through the system, and increased smokey / sooty emissions. If you look at the inside of the backbox of a aggressively mapped N/A car, it will be much sootier than usual.

a lot of remapped NA cars will actually reduce fuel to lean out the mixture so thats not true.