Has anyone used the mobile service Re- Map Kings? Does the car take well to the up-grade of approx. 15 hp worth the cost and have no determent to the car?
Unless you have fitted physical breathing mods, I doubt, as with most petrol engines, you will see any gains at all.
You would need intake and exhaust mods to be able to see any difference.
Thanks Nick - they are claiming around 172 hp but as you say the flow of fuel/exhaust is unchanged - has anyone had these remaps with no mods to the exhaust/head etc?
If this were possible, I suspect it would be 6he first port of call for anyone wanting some extra power.
As it is, it’s the exhaust manifold that gets changed first for any real gains.
A chain is only as strong as its weakest link and all that…
ask them if they are prepared to dyno your engine, then apply their new map, then rerun the dyno and show you the results.
If you dont see the promised gain, you dont pay (and ideally they reset to the original map)
Also on a 2.0 car, 15bhp is not really noticeable itself. When accelerating, it is the torque that you feel, so you need more of that. By changing where the torque comes in (ie lower down the rev range) will make a more noticeable difference. This is for everyday driving. Extra power is usually seen most at the top of the rev range and to extend the red line will probably give you a higher total output. If you are on the road, in reality a simple remap will not help. If you are chasing down a lap time then every bhp will count, but again better driver training will save far more than 15bhp. I did think about it for my ND 2.0 - there is a remap that takes it from 181 to 200, but 10% mostly at the top end will be used/witnessed only on a few occasions.
Anyway, using “man maths”, any additional bhp is always worth the expense, but in the real world less so…
Many thanks - will leave it as Mazda setup for the UK - appreciate the feedback
Instead of going to a generic remapper, speak to an MX5 remapping specialist.
Go and see Clive at Autotronix Developments. All his mapping done on a dyno and he will only be 30 or so miles from you.
I have put jet kits on a normally aspirated motorbike in the past, specifically a cbr900rrt, and these richened the mixture around 4000 rpm which gave a real noticeable improvement in mid range performance, lots more torque for roll on acceleration.
The logic was always that the flat spot was engineered in to address noise and emissions tests done at specific revs or drive by speed.
Do (or did) cars have such throttling of the mid range that could be unlocked by remapping fueling? If so, then it may be worth remapping without other changes.
The remapping takes out the throttle restriction in 1st and 2nd gears that Mazda map in to help the traction control
So it will give more power in first and second.
Anti spin presumably
I agree that the manufacturers alter the natural performance at the point where they are measured for emissions. The remap would eliminate this, which goes back to my point of increasing mid range torque. However I have not really noticed my ND is that bad in this regard…
With the introduction of e10 fuel, which will most likley have a lower octane rating than the 95 ron stated,
is it worth having your engine remapped? IMO this action will kill your engine even quicker than the e10 is guaranteed to do. There are government objectives out there that us mortals are not told of!
There should be no change to the RON rating for E10 fuel by comparison with current E5 95 RON
The E10 should work ok, as it is supposed to damage rubber parts of the fuel system, but all cars have been manufactured for some time to accept this. However if you use Super unleaded, this is still E5 and will not change for at least 5 years. Therefore it is best (although not cheapest) to use Super unleaded if you are worried. This should give better mpg and better performance, but is probably immeasurable in real life.
I agree with a lot of the discussion above.
My brother owns Evolution chips and is the intellect behind their remaps.
They have dealers spread across the country but each engine map is sent back to him to personally design and tune to the customer’s personal needs.
He built his trade up re-mapping Ford Sierra Cosworths in the 90s and its evolved from there.
They’re showing an 11bhp increase to the 2.0 ND MX5 (and 21 extra torques) on their website.
Anyway, I’m not specifically plugging his company (although I can recommend it…) but we’ve had many interesting discussions about remapping over a beer - hence my input to this discussion comes from the horses mouth…
Whilst the easy BHP gains in remapping come from turbocharged cars, it is possible to get a small improvement in a normally aspirated car without resorting to any hardware upgrades…
This is because most manufacturers use a standard engine map across all their European market cars - and fuel octane standards vary across Europe - so there’s some benefit to be gained from looking at the map in detail and tuning it to work with our minimum 95 RON fuel (or even to tune it to be designed to work with 98 or 99 RON, if the UK customer wants to shell out for the better fuel…)
So whilst it is limited, there are some genuine small gains to be made to a UK normally aspirated car by tailoring the generic manufacturer map for UK use.
Whether you’d actually be able to notice the difference iin normal UK road driving s another thing…
Anyway, if you’re interested, this web site lists all the upgrades possible, by Make and Model, and makes interesting reading…
https://www.evolutionchips.co.uk/Index.html
The thing is though, the limiting factor will be breathing. Without hardware mods, you will not get anymore air in and out of the engine and so the ability to make a bigger bang is very limited. Yes you can optimise for a far narrower set of circumstances, but modern engines are pretty good at that already. Higher octain fuel will allow timing to be pushed forward, but any “big” gains are not going to happen.
Don’t just look at the HP increase when it comes to dynos.
I wouldn’t bother with a generic remap, it might be half the cost but you have no proof of any real increase in torque or hp. I paid £500 for my remap but I have the proof its been done.
I ran the ram air on my car stock, it made about 5hp over stock the tuner said. Then the 4-1 headers and remap gained an additional 20hp.
It’s an affordable intake, gives better throttle response but just don’t expect any big gains when it comes to naturally aspirated tuning.
Hi @PeterJayne as you live at Pontefract, nip and see Paul Roddison, it’s the Meadowhall
turnoff from the M1.
He does a variety of upgrades and they have all been race tested
Good honest advice with no bull. Top quality MX5 specialist.