E85 2L remap???

[Flyingfifer]

Hi Flyingfifer .
I am only going by my experience with the remaps that I have had done in the past 16 years . Even if on paper they may not look much but the driving experience is definitely better .

You're certainly entitled to your opinion however I suspect there was an element of placebo power going on there, if you're mapping something with a turbo or at the very least some power to speak of then yes I can absolutely understand a marked and worthwhile difference but when you're talking about jiggling around 2 or 3 bhp/ftlb on the curve or gaining a maximum of 10bhp at the top its not going to turn the car into a whole different machine to drive. :idunno:

In terms of the graph you linked in the link that you linked, I have some issues with it. Firstly the stock torque figure is way off, the N52 in the E86 peaks torque around 3k RPM not 5.5(ish)k as your print out shows. Secondly the torque figures are weird, the value at the bottom reads 299.5 (assuming NM) which would be roughly correct in terms of the stock ftlb but the graph shows something totally different at around 250NM or 184ftlb, I assume the figure at the bottom is assumed @ fly and the graph is measured @ wheels but that being the case thats almost around a 16% transmission loss. Thirdly the "stage1" line is more akin to the expected standard curve and lastly while not impossible the gain of circa 19bhp from stock seems optimistic.

Below is a BMW power graph of the 330i with the N52, although slightly different from the E86 N52 you will notice that the torque curve peaks before 3k and is largely flat from that point for several krpm.




Regardless all that said, OP, if you fancy it, go for it. But real world brass tacks is that its not going to make a real difference and you would be better spending the money elsewhere or saving for the 3.0

 

[jock156]

I think I’ve decided it’s worth a punt

I’m not after motorway speeds more country road grunt

 

[Smartbear]

I think you must be talking about an increase in peak bhp not being achievable

Yes a remap can make more useable power in the mid range even if the overall peak bhp doesn`t increase . That is the point I thought I was making :?

I assumed ( the mother of all f**# ups ) that when discussing claims of an increase in power of 10% by a tuner we were all talking about peak increase as that is what they normally claim ?

Anyway a good discussion to keep my brain cells from deteriorating any further

So after all that, how much extra power does your car make in the midrange?
Rob

 

[Flyingfifer]

I think I’ve decided it’s worth a punt

I’m not after motorway speeds more country road grunt

Best of luck
Would be interested in the dyno graphs for before and after

 

[jock156]

 

[1536Z4]

Firstly the stock torque figure is way off, the N52 in the E86 peaks torque around 3k RPM not 5.5(ish)k as your print out shows.

I did say in the post and I quote "I was aware that there would be a drop between BHP and WHP but was surprised at the amount of difference . The stock torque figure was/is also a concern based on what I think it should be ( 315 Nm ?? ) "

and I also put this " Yes if the figures are to be believed . I`m not saying they are not correct as it does feel much better lower down the rev range but you do hear about tuners playing around with the settings to provide inflated results ".

So as I have already said I am under no illusion that the figures may not be totally correct but the real world difference is noticeable . I would quite happily throw the graph away as I see the figures as a guide . It is a well known fact that you can put a car on one dyno and then take it somewhere else and dyno it again and the figures will be different .

So after all that, how much extra power does your car make in the midrange?

Look at the graph and work it out for yourself if you believe what you are reading Actually I spent all that money on nothing and I`m really happy about it

 

[1536Z4]

I think I’ve decided it’s worth a punt

I’m not after motorway speeds more country road grunt

I hope you get the result you are looking for as I am going to look a right idiot if you don`t feel any difference .( though of course it may all be placebo effect ) When you get it done don`t get hung up on the BHP and Torque figures just let us know if there is a change for the better and if you think it was worth the money you paid so that other people can make an informed decision . All the best

 

[PerryGunn]

We haven't had a good more-power-from-a-2.0L thread since Jonny Essex hung up his clogs....

You could always look at turbocharging - there's a guy in Norfolk says he can do it... :evil:

 

[Smartbear]

I think I’ve decided it’s worth a punt

I’m not after motorway speeds more country road grunt

I hope you get the result you are looking for as I am going to look a right idiot if you don`t feel any difference .( though of course it may all be placebo effect ) When you get it done don`t get hung up on the BHP and Torque figures just let us know if there is a change for the better and if you think it was worth the money you paid so that other people can make an informed decision . All the best

It’s far more accurate to get a before/after dyno run (on the same machine) to validate any changes as “seat of the pants” diagnosis is meaningless.
Don’t forget that many owners are convinced their cars make more power after pressing the sport button by judging the car this way, they don’t of course & a dyno run would prove it
Rob

 

[jock156]

We haven't had a good more-power-from-a-2.0L thread since Jonny Essex hung up his clogs....

You could always look at turbocharging - there's a guy in Norfolk says he can do it... :evil:

Do you know the name of the company?

 

[PerryGunn]

We haven't had a good more-power-from-a-2.0L thread since Jonny Essex hung up his clogs....

You could always look at turbocharging - there's a guy in Norfolk says he can do it... :evil:

Do you know the name of the company?

Yes - but you really, really, really!! don't want to go there....

A lot of the longer-term members on here will remember Jonny's nightmare with the cowboys involved - and it's not the sort of experience you'd wish on your worst enemy...

When the members on here started to look into the company/owner and their dubious past record, the owner threatened legal action against the forum unless the threads were taken down...

 

[Flyingfifer]

We haven't had a good more-power-from-a-2.0L thread since Jonny Essex hung up his clogs....

You could always look at turbocharging - there's a guy in Norfolk says he can do it... :evil:

 

[jock156]

Mmmm! Missed all that!

Out of curiosity and nothing else, anyone PM me the name of the company?

I’m in Norwich so might know of them

Or even the story as I have a load of popcorn left over from Christmas

 

[skelters]

Mmmm! Missed all that!

Out of curiosity and nothing else, anyone PM me the name of the company?

I’m in Norwich so might know of them

Or even the story as I have a load of popcorn left over from Christmas

They were called, Fly by Night Enterprises, 2 Crooked Lane, Dodgy Village.

Just ask for Dave. There's a discount for cash.

Also, I have some magic beans for sale!

 

[peteslag]

“Can get a a 20bhp gain on this can add hard cut on redline and even add pops and burble £130”

Above was their original response

This might be a bit late but I've only just seem this thread.

One of my very good friends has owned his own successful mapping business for about ten years. I asked him to remap my old 3.0, he said in all honesty not to bother because the real world gains just won't be noticeable. We sat down for a cuppa and had a good chat about mapping in general and I found out a couple of things that are pertinent to your decision.


130 quid remaps generally won't be very good, usually it will just be a throttle remap (smaller pedal inputs will use more of the available engine power).

"pops and bangs" maps if done on the cheap can be incredibly harmful to your exhaust system.

If he is claiming 20 bhp on a 2L then he is definitely not the real deal. You wouldn't get that much on a 3L.


My friend remapped my Megane R26, I got a "mate rate" and I paid more than your quote. This is because he had spent a lot of money developing his maps properly and they are completely safe. Ultimately, it's your decision but if you use a cheap re-mapper there is a serious risk that you will just feel like you've just thrown your money down the drain and if you go for "pops and bangs" the possibility of damage to your exhaust system.