[Lagemba]

Hey guys. Thought I'd come on this forum to get some expert advice from all you veterans since I'm quite a newbie so apologies for any ignorance.

I've recently got myself a 2015 F32 420d (first Beemer ) and was wondering what kind of BHP I could get on it if I were to max it out. By that I mean, remap ECU, get hybrid turbo, new inter-cooler, replace boost pipes and another remap after fitting new parts.

Obviously I'm not looking to blow up the engine block or drive train. Asking you guys to see what the engine can take in terms of max BHP and torque as I haven't been able to find much about this particular engine online when it comes to modifications. I've had friends tell me I'll be able to bring it up to something like 400 BHP which is a significant amount more than the M2 which I found hard to believe considering it's just a 2L diesel, while I've also had friends tell me that the parts won't be able to take compressions like that which will result in a lot of expensive changes which made sense but still unsure.

Anyway, if anyone would be able to give me an idea about the safest max BHP and torque I'd be able to bring it up to without any complications & what mods it require I'd appreciate it. Gotta be careful & have fun at the same time since this is my daily. Thanks!

If anyone's got any other tips/advice feel free to leave a post would appreciate!

[Soul_Glo]

Remap it and be done with it. With a hybrid turbo, I doubt you will make more than 280 bhp.

[RobUK]

What about chopping the 420d in for a 430d? Probably cost less overall plus you'll get an immediate 0-60 improvement of nearly 3s and a 50-75 improvement of 4s. Unless of course you're into the joys of modding

[Hooded]

This doesn't answer your question .. but it would have been a lot easier to have just got a 435d instead and then spent £350 on a stage 1 remap to get close to 400bhp out of a diesel 4 series.

[RoShambolt]

Originally Posted by Hooded

This doesn't answer your question .. but it would have been a lot easier to have just got a 435d instead and then spent £350 on a stage 1 remap to get close to 400bhp out of a diesel 4 series.

I agree, also cheaper with less risk I would guess.

[Lagemba]

Yeah. Trust me, would have leaped at the chance to get something bigger than a 2L. Unfortunately insurance is a struggle since I'm 21 and is already crazy expensive as it is. Would love to exchange it for a 430d+ but bought the car second hand so doubt that's even possible.

Just curious to see how much the engine can handle in terms of BHP and torque and what mods it would take to get it up there. Cheers for the comments so far!

[Sasquartch]

Yes. Pointless exercise with a 20d - will cost more than a 35d if you want those sort of power levels, will be harder to insure, likely to be less reliable. A 35d will have uprated brakes etc as well. Don't see the point personally

[Hooded]

Originally Posted by RobUK

What about chopping the 420d in for a 430d? Probably cost less overall plus you'll get an immediate 0-60 improvement of nearly 3s and a 50-75 improvement of 4s. Unless of course you're into the joys of modding

Forgive me but where did you get those fantasy figures for the 430d?

A 430d is around 1.5 seconds quicker 50-75 than a 420d both cars stock.
0-60 is nearly 2 seconds difference not 3.
Both cars Remapped stage 1 and the gaps in the times are even smaller!

[Lagemba]

Originally Posted by Sasquartch

Yes. Pointless exercise with a 20d - will cost more than a 35d if you want those sort of power levels, will be harder to insure, likely to be less reliable. A 35d will have uprated brakes etc as well. Don't see the point personally

Ah I see, alright. Cheers for the input. I'm not aiming for a specific power level. Asking to see what the 2L diesel engine is capable of and what mods it would take to get it there, just so I know what it's maximum capabilities are.

[Rukka]

Originally Posted by michaelcami

Yeah. Trust me, would have leaped at the chance to get something bigger than a 2L. Unfortunately insurance is a struggle since I'm 21 and is already crazy expensive as it is. Would love to exchange it for a 430d+ but bought the car second hand so doubt that's even possible.

Just curious to see how much the engine can handle in terms of BHP and torque and what mods it would take to get it up there. Cheers for the comments so far!

And you think your insurance is crazy now.... doubt anyone would insure you at all with all the engine mods if you went down that route.

[Lagemba]

Originally Posted by Rukka

And you think your insurance is crazy now.... doubt anyone would insure you at all with all the engine mods if you went down that route.

Moving soon and should be able to get insured there with them, hence why I'm asking how much power I'd be able to get out of this engine without damaging it

[TouringPleb]

Originally Posted by michaelcami

Yeah. Trust me, would have leaped at the chance to get something bigger than a 2L. Unfortunately insurance is a struggle since I'm 21 and is already crazy expensive as it is. Would love to exchange it for a 430d+ but bought the car second hand so doubt that's even possible.

Just curious to see how much the engine can handle in terms of BHP and torque and what mods it would take to get it up there. Cheers for the comments so far!

This is going to sound dull and boring but..

If you are only 21 I'd recommend leaving it as it is, at least for a few years. You've got 4 years driving experience at the most and it's sounds like this is your first rear wheel drive car. It will drive very differently to anything you've driven before.

At your age and experience you certainly don't want to be putting 400 bhp (even if it was possible) through a highly stressed 2 litre diesel. There's more to driving than 0-60 times. A well driven 420d will be just as fast down a country road as a poorly driven 430d.

Learn how the car handles, how it balances, how to correct it when the rear end comes out and basically just get more miles and experience under your belt. Then in a few years look at more power.

I know this isn't what you wanted to hear but I've seen too many young men who've put cars into ditches and trees because they had more power than they could handle.

[Lagemba]

Originally Posted by TouringPleb

This is going to sound dull and boring but..

If you are only 21 I'd recommend leaving it as it is, at least for a few years. You've got 4 years driving experience at the most and it's sounds like this is your first rear wheel drive car. It will drive very differently to anything you've driven before.

At your age and experience you certainly don't want to be putting 400 bhp (even if it was possible) through a highly stressed 2 litre diesel. There's more to driving than 0-60 times. A well driven 420d will be just as fast down a country road as a poorly driven 430d.

Learn how the car handles, how it balances, how to correct it when the rear end comes out and basically just get more miles and experience under your belt. Then in a few years look at more power.

I know this isn't what you wanted to hear but I've seen too many young men who've put cars into ditches and trees because they had more power than they could handle.

Thanks for your input. I've been driving RWD cards for a couple years now, I know how to drift and can control over-steer when it's least expected - sometimes I enjoy when it over-steers without me trying because I'd be so into the drive I'm prepared for it - I also play a lot of Assetto Corsa and spend most of my free time drifting using the G29, but that doesn't mean that I am not cautious when driving or that I push my limits.

I'm quite obsessed haha, & I don't intend of remapping or trying to pull more power anytime soon. I appreciate the advice I really do, but the main reason for this thread was to ask how much power I'd be able to pull from the car when the day comes when I want more because I feel like most people on this forum would be able to give a more accurate bhp & torque value compared to if I had to estimate as well as have more knowledge about modding in general.

[Nobby Clark]

Personally, I'd go for the M Performance body kit.
No adverse effect on engine, drivetrain or critical components and an instant +100bhp.

Add an M Performance key cover and you'll be at +400bhp before you know it.

[Lagemba]

Originally Posted by Nobby Clark

Personally, I'd go for the M Performance body kit.
No adverse effect on engine, drivetrain or critical components and an instant +100bhp.

Add an M Performance key cover and you'll be at +400bhp before you know it.

I bought the car with the M Performance body kit on it already. Pretty sure it doesn't give 100bhp+ haha.

Oh yeah forgot the M Performance key cover gives an extra 1000bhp. Lol.

[Hooded]

Just stick a stage 1 remap on it .. 230bhp and won't cost much ... trust me it will go pretty well then... only around 0.3 seconds off a stock 430d 50-75mph

[Lagemba]

Originally Posted by Hooded

Just stick a stage 1 remap on it .. 230bhp and won't cost much ... trust me it will go pretty well then... only around 0.3 seconds off a stock 430d 50-75mph

Cheers for the advice Yeah remap will get me 250bhp and 500 torque which sounds nice.

[RustyBitz]

Originally Posted by michaelcami

Thanks for your input. I've been driving RWD cards for a couple years now, I know how to drift and can control over-steer when it's least expected - sometimes I enjoy when it over-steers without me trying because I'd be so into the drive I'm prepared for it - I also play a lot of Assetto Corsa and spend most of my free time drifting using the G29, but that doesn't mean that I am not cautious when driving or that I push my limits.

I'm quite obsessed haha, & I don't intend of remapping or trying to pull more power anytime soon. I appreciate the advice I really do, but the main reason for this thread was to ask how much power I'd be able to pull from the car when the day comes when I want more because I feel like most people on this forum would be able to give a more accurate bhp & torque value compared to if I had to estimate as well as have more knowledge about modding in general.

Echo the above and below comments, don't bother it's a 320d! A great car, be happy with what you have.

More worryingly because you play video games with a steering wheel, you think you have all the experience for a powerful RWD car? Think again!

That's the sort of attitude that causes crashes.

[chris-c]

Originally Posted by michaelcami

Thanks for your input. I've been driving RWD cards for a couple years now, I know how to drift and can control over-steer when it's least expected - sometimes I enjoy when it over-steers without me trying because I'd be so into the drive I'm prepared for it - I also play a lot of Assetto Corsa and spend most of my free time drifting using the G29, but that doesn't mean that I am not cautious when driving or that I push my limits.

I'm quite obsessed haha, & I don't intend of remapping or trying to pull more power anytime soon. I appreciate the advice I really do, but the main reason for this thread was to ask how much power I'd be able to pull from the car when the day comes when I want more because I feel like most people on this forum would be able to give a more accurate bhp & torque value compared to if I had to estimate as well as have more knowledge about modding in general.

Sorry but what in actual hell? You know how to drift because you've got a £100 racing wheel.

Seriously you are an utter dickhead.

How about you find a track that'll let you drift properly and I'll bung £100 in to see how good you are.

That is a legit offer. If you find a track in the south that will let you drift around like billy big balls I will put £100 to the cost to see how amazing you are.

Maybe then you'll think twice about comparing a flipping computer game to actually putting some power down in a rear wheel drive car.

[Soul_Glo]

If you couldn't reach to a 430d then paying through the nose for modifications such as a hybrid turbo won't do you any favours either. You'll end up wanting more to get the most of the power and experience... lowering springs for example... if you are serious it might be worth getting some insurance quotes. There will need to be a budget for that.

Improve the ride quality and how it puts down the power first. Go for ACS springs or coil overs... budget and do one thing at a time so you don't have much debt or can afford it without borrowing.

[Zippee]

Max Vestappen is only 20. Michael may well be awesome behind the wheel. His 420d is probably holding him back.

Go for it Michael, will be interesting to see what you could get out of it.

[Southern Jay]

Originally Posted by chris-c

Sorry but what in actual hell? You know how to drift because you've got a £100 racing wheel.

Seriously you are an utter dickhead.

How about you find a track that'll let you drift properly and I'll bung £100 in to see how good you are.

That is a legit offer. If you find a track in the south that will let you drift around like billy big balls I will put £100 to the cost to see how amazing you are.

Maybe then you'll think twice about comparing a flipping computer game to actually putting some power down in a rear wheel drive car.

I quite fancy joining the SAS, I've played all the call of duty games and am quite good.