Tuning 20i
- Thread starter GAVVX
- Start date
Hi Tim
Fitting an aftermarket exhaust will just invalid the warranty for the original exhaust, regarding remapping, do tell them!! I have mapped every BMW I have had in the last 10 years, including
E90 530d, 2 x E90 520ds, 1 x 120d, 1 x 330d, 1 x R56 Cooper S and my current 320d running 225bhp map. All the cars have been new and across all the cars I have covered 250,000 miles with no problems.
My mapping has always been done by Sanspeed in Kent, they are just waiting for finalised files, I just wondered if anyone else has mapped one yet.
Exhaustwise, I waiting for Milltek to come back to me as they may use my car to pattern a system, I can't find anyone else listing a system. There seems to be systems available for the 35i
Thanks
Gavin
Fitting an aftermarket exhaust will just invalid the warranty for the original exhaust, regarding remapping, do tell them!! I have mapped every BMW I have had in the last 10 years, including
E90 530d, 2 x E90 520ds, 1 x 120d, 1 x 330d, 1 x R56 Cooper S and my current 320d running 225bhp map. All the cars have been new and across all the cars I have covered 250,000 miles with no problems.
My mapping has always been done by Sanspeed in Kent, they are just waiting for finalised files, I just wondered if anyone else has mapped one yet.
Exhaustwise, I waiting for Milltek to come back to me as they may use my car to pattern a system, I can't find anyone else listing a system. There seems to be systems available for the 35i
Thanks
Gavin
I will watch this with interest, as the N20 should be quite tuneable.
My 123d has been remapped since I have had it and touchwood has never had any problems. If you go to a reputable tuner and get a sensible custom map that is not too aggressive then there shouldn't really be a problem.
My 123d has been remapped since I have had it and touchwood has never had any problems. If you go to a reputable tuner and get a sensible custom map that is not too aggressive then there shouldn't really be a problem.
Note for all go for the 2.8.
sorry. seriously spending more cash on remap when the new toy is under wty is asking for issues.
Last mod I made was on a TT and was a booster dial in the dash. Had a noisy sample fan in the dash but as I had messed with the dash (I did not) they refused to pay for it. I had not done anything but could not push my case.
Since then I refused to do anything until wty runs out, oh by then I change the car lol.
seriously remaps can be removed but come on is something serious happens do you think bmw are so stuipd, they will know if any uploads have been done. so will insurance have you modifed the car in any way.
Like today I hit a spade in the road +£1,700 damage insurance asked me if I had made any modifications. Now then the car is in BMW work shop if I had a remap this would have been found and the best would be me to fork out for the lot the worst is going to court. My first z4 had £13,000 worth of damage due to some one pulling out on me again fresh un mod car clear, a remap and insurance would drop me like a turd in the bath.
Just my point and its raw for me today good job its a clean car
sorry. seriously spending more cash on remap when the new toy is under wty is asking for issues.
Last mod I made was on a TT and was a booster dial in the dash. Had a noisy sample fan in the dash but as I had messed with the dash (I did not) they refused to pay for it. I had not done anything but could not push my case.
Since then I refused to do anything until wty runs out, oh by then I change the car lol.
seriously remaps can be removed but come on is something serious happens do you think bmw are so stuipd, they will know if any uploads have been done. so will insurance have you modifed the car in any way.
Like today I hit a spade in the road +£1,700 damage insurance asked me if I had made any modifications. Now then the car is in BMW work shop if I had a remap this would have been found and the best would be me to fork out for the lot the worst is going to court. My first z4 had £13,000 worth of damage due to some one pulling out on me again fresh un mod car clear, a remap and insurance would drop me like a turd in the bath.
Just my point and its raw for me today good job its a clean car
When I had a MINI Cooper S I asked the dealer if it was OK to fit a cat back exhaust (Eisenmann) and they said it was but poo'd poo'd any engine tuning.
Problem is its a risk, many will say they've tuned their car and never had any issues, but you only need a slight problem for BMW to refuse warranty work. If your engine goes pop will your tuner fork out for repairs if BMW won't?
Personally I would have gone for a larger engined Zed in the first place, I don't think its worth the risk on a 30K car, leave it until its 3 years old and hitting banger status
Tim.
Problem is its a risk, many will say they've tuned their car and never had any issues, but you only need a slight problem for BMW to refuse warranty work. If your engine goes pop will your tuner fork out for repairs if BMW won't?
Personally I would have gone for a larger engined Zed in the first place, I don't think its worth the risk on a 30K car, leave it until its 3 years old and hitting banger status
Tim.
First of all hello and welcome to the forum......and why not tell us a little bit about yourself and
:worthless:
If you are going to remap the 2.0 are you going to upgrade the brakes too, the 2.8 has larger disc's. Will you also notify the insurance company of the modifications as it seems like a huge risk otherwise.
Sure there will be a lot of interest if you are the first to do it though
:worthless:
If you are going to remap the 2.0 are you going to upgrade the brakes too, the 2.8 has larger disc's. Will you also notify the insurance company of the modifications as it seems like a huge risk otherwise.
Sure there will be a lot of interest if you are the first to do it though
Warranty is always the big sticking point of tuning but in 10 years of having my cars mapped its never been a problem, and I've never owned a car out of warranty. I have had various bmws go into the dealers with issues and not once has a dealer found the map.
Mapping the 20i should show about 35bhp to 45bhp increase which is not enough to worry the brakes. The 28i is an identical engine with just a bigger turbo. BMW map cars differently all the time on order to sell them as different models, who wants to bet the BMW bring out a 23i in the next year with bhp of around 225, with no mechanical change to the car other the map.
Car goes to the tuners in the morning I will keep everyone up to date
---
I am here: http://tapatalk.com/map.php?jddpb1
Mapping the 20i should show about 35bhp to 45bhp increase which is not enough to worry the brakes. The 28i is an identical engine with just a bigger turbo. BMW map cars differently all the time on order to sell them as different models, who wants to bet the BMW bring out a 23i in the next year with bhp of around 225, with no mechanical change to the car other the map.
Car goes to the tuners in the morning I will keep everyone up to date
---
I am here: http://tapatalk.com/map.php?jddpb1
GAVVX said:
BMW will often use the same engine but in various states of tune, but its not as simple as just remapping the ECU, often injectors and cooling are uprated. If you look at some of BMWs performance packs its not just a simple remap, usually includes other uprated engine parts, this is why you might pay a couple of grand as opposed to a few hundred from an aftermarket tuner.
If BMW suspect a car has been remapped where there is a warranty claim, they will find an aftermarket map if its still on the car.
Tim.
Hi guys,
I've come across the following tuning box:
http://www.speed-buster.de/en/chiptuning-box-bmw-z4-sdrive20i-135-kw-184-ps/a-10109573/
My understanding is that it is plug and play, meaning it can be removed easily and without trace since as it is external to the ECU, should the car need warranty work. This does make it interesting but I'm weary as to how these units are tested and/or approved :?
I believe I can get hold of the same or similar set up in the UK for ~£300.
Be interesting to see how your tune goes tomorrow!
I've come across the following tuning box:
http://www.speed-buster.de/en/chiptuning-box-bmw-z4-sdrive20i-135-kw-184-ps/a-10109573/
My understanding is that it is plug and play, meaning it can be removed easily and without trace since as it is external to the ECU, should the car need warranty work. This does make it interesting but I'm weary as to how these units are tested and/or approved :?
I believe I can get hold of the same or similar set up in the UK for ~£300.
Be interesting to see how your tune goes tomorrow!
robertsskippyj
Member
Isn't the 2.0 a non turbo engine and the 2.8 a 2.0 with twin turbos?GAVVX said:
If i'm right how are you going to get 25% power increase out of just a remap?
robertsskippyj said:
The 20i and 28i engines are nearly identical. The only differences I could find are the injectors.
Block, head, cooling, intake, turbo are all the same parts numbers. I haven't looked at parts diagrams for brakes or exhaust.
New fuel injectors and a remap should get you to 28i power. That kind of a change would give BMW grounds in invalidate the warranty.
robertsskippyj
Member
That would explain a 25% expected increase.Dave-2912 said:
I see in your sig you have one. What do they sound like as ive heard mixed reports.
robertsskippyj
Member
Nope, the 20i and 28i both have a single twin-scroll turbo I believe...[/quote]
That would explain a 25% expected increase.
I see in your sig you have one. What do they sound like as ive heard mixed reports.[/quote]
Apologies, my sig is a slight lie... I'm picking mine up in about a week so can't answer that yet. The showroom car sounded good at the rear from the exhaust but there was a slightly diesel-ish tapping from under the bonnet.[/quote]
Don't worry. lol. Just wondering as when I replace my 3.0 e89 it will probably be with a new 28i might be lucky and get good deal on a 35i though.
Cool bet you cannot wait, hope you have good weather when you pick her up.
That would explain a 25% expected increase.
I see in your sig you have one. What do they sound like as ive heard mixed reports.[/quote]
Apologies, my sig is a slight lie... I'm picking mine up in about a week so can't answer that yet. The showroom car sounded good at the rear from the exhaust but there was a slightly diesel-ish tapping from under the bonnet.[/quote]
Don't worry. lol. Just wondering as when I replace my 3.0 e89 it will probably be with a new 28i might be lucky and get good deal on a 35i though.
Cool bet you cannot wait, hope you have good weather when you pick her up.
Update on the Tuning - car was in the tuners 2 weeks ago for a few days to do some explorative work
ECU Map - ECU has been downloaded and files have been sent off to Germany, we are just waiting for the finalised and tested files.
Exhaust - Measurements went off to Milltek who making a single sided system which will fit both 20i and 28i, this is in effect 1 half of a 35i system which is already avaliable.
Induction - Sanspeed are the UK distributor for Simota, we are looking at patterning a carbon induction system, this my prove a bit tricky as the AMM sensor is built into the filter housing. A simple filter range may improve things as the factory fit one is tiny.
Bit of an update on the differences between 20i and 28i, we have side by side checked components with BMW service and the only difference between the two models is map and injectors, so absolutely no need to make any further mods to suspension or brakes. To be honest 185bhp from a 2litre turbo is pretty poor. We are expecting gains of 40bhp and 50 lb ft torque from the map alone,which I will be happy with. I don't think the Milltek will make much difference maybe 5bhp as we are only going cat back rather then turbo back, but at least it will sound like a sports car. To be honest I'm only after improving the 20i rather then over tuning it, maybe I'm getting old as I want the car to be pleasant to drive rather then rip your head off mental. My last sports car was like that, it as was enormous fun, but you couldn't cope with driving it all the time.
More updates to follow in the next few weeks, being a new engine the development time can take a while. We also have to consider the economies of scale, how many of new owners will tune a new car, judging by the feelings on this forum people are very scared of warranty issues, which I guess is understandable. The solution we will work towards is a switchable tuning box, a bit like a Superchips Bluefin which will allow owners to turn the map on and off. Regarding the exhaust and warranty, BMW will only invalidate the exhaust system from the cat back so no issue there.
ECU Map - ECU has been downloaded and files have been sent off to Germany, we are just waiting for the finalised and tested files.
Exhaust - Measurements went off to Milltek who making a single sided system which will fit both 20i and 28i, this is in effect 1 half of a 35i system which is already avaliable.
Induction - Sanspeed are the UK distributor for Simota, we are looking at patterning a carbon induction system, this my prove a bit tricky as the AMM sensor is built into the filter housing. A simple filter range may improve things as the factory fit one is tiny.
Bit of an update on the differences between 20i and 28i, we have side by side checked components with BMW service and the only difference between the two models is map and injectors, so absolutely no need to make any further mods to suspension or brakes. To be honest 185bhp from a 2litre turbo is pretty poor. We are expecting gains of 40bhp and 50 lb ft torque from the map alone,which I will be happy with. I don't think the Milltek will make much difference maybe 5bhp as we are only going cat back rather then turbo back, but at least it will sound like a sports car. To be honest I'm only after improving the 20i rather then over tuning it, maybe I'm getting old as I want the car to be pleasant to drive rather then rip your head off mental. My last sports car was like that, it as was enormous fun, but you couldn't cope with driving it all the time.
More updates to follow in the next few weeks, being a new engine the development time can take a while. We also have to consider the economies of scale, how many of new owners will tune a new car, judging by the feelings on this forum people are very scared of warranty issues, which I guess is understandable. The solution we will work towards is a switchable tuning box, a bit like a Superchips Bluefin which will allow owners to turn the map on and off. Regarding the exhaust and warranty, BMW will only invalidate the exhaust system from the cat back so no issue there.
A
Anonymous
Guest
Serious question : when you do this to your car, what will you tell your insurance company?