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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335D Evolve Remapping



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      07-11-2008, 05:51 AM   #1
Jude1
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335D Evolve Remapping

Hi All,

As this forum seems to be mainly US 335i oocupied from a Tuning perspective which is great and very informative, I thought I'd share with you some basic tuning results for the 335D as this is a car that you'll soon have an option to buy.

Latest figures from Evolve ( www.evolveyourcar.com ) indicate upto 355bhp and 730Nm (545-550lb/ft) from a simple remap.......plus the added advantage of 40mpg +. Over here in the UK petrol and diesel prices are high, but the 335d still works out as the better option for those who run up big mileages.

See the link here with full discussion -

http://www.e90post.com/forums/showthread.php?t=155537

and the graph here showing old remap v new remap, standard figures are much lower(figures are only a guide) -



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      07-11-2008, 06:01 AM   #2
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so 20% correction factor?
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      07-11-2008, 06:06 AM   #3
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so 20% correction factor?
??
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      07-11-2008, 10:10 AM   #4
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Quote:
Originally Posted by Jude1 View Post
??
The chart says Flywheel HP rather than Wheel HP at the tires. Unless the tuner has an engine dyno and lifted the motor out of the car to test it at the flywheel rather than rolling the whole 335D up on a typical dyno, the chart would seem to indicate that the WHP numbers were upped to correct for drivetrain loss, giving virtual FHP numbers.

Loss wouldn't be a straight % as the loss would very by drivetrain temprature and RPM, but it's easier to think in basics- 12-15% is typical.

The numbers are still very good tho
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      07-11-2008, 10:24 AM   #5
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EDIT: deleted this part of my post, I was mistaken. I thought the above graph shows baseline numbers. Nevermind.

The HP numbers are below a tuned 335i, but the diesels are torque monsters tuned ot not and if U look at the performance vs. mileage, it's unbeatable.

Thx for the info
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      07-11-2008, 11:49 AM   #6
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Quote:
Originally Posted by Graphite Shark View Post
The chart says Flywheel HP rather than Wheel HP at the tires. Unless the tuner has an engine dyno and lifted the motor out of the car to test it at the flywheel rather than rolling the whole 335D up on a typical dyno, the chart would seem to indicate that the WHP numbers were upped to correct for drivetrain loss, giving virtual FHP numbers.

Loss wouldn't be a straight % as the loss would very by drivetrain temprature and RPM, but it's easier to think in basics- 12-15% is typical.

The numbers are still very good tho
Ahh ok I fully understand now.

We posted up flywheel as that is what is most recognised in the UK forums but the dyno actually measures wheel HP which for the above graph was 285 HP and 275 HP for the lower curve.

The curves are showing 2 maps for the 335d, the lower one is a good remap from a reputable Tuner in the UK, the higher curve is from Evolve. The figures are probably lower than what is normally seen due to the way that we strapped the car down, this was done to ensure consistent figures between the two dyno runs.

A strong map on the 335d will see 360 flywheel HP and 550lb/ft which puts it well in front of a standard 335i and on the heels of a mapped 335i.

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      07-11-2008, 12:17 PM   #7
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Is the gearing the same in a 335d as it is in the 335i? Given those numbers the car should smoke off the line.

I'm SERIOUSLY considering one when they hit US shores.
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      07-11-2008, 12:21 PM   #8
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Is the gearing the same in a 335d as it is in the 335i? Given those numbers the car should smoke off the line.

I'm SERIOUSLY considering one when they hit US shores.

The 335d runs an autobox only due to the amount of torque, this puts a lot of potential owners off, but it is actually suprisingly good.

Off the line it is superb. I ran at an event last year called Fighting Torque (check Youtube) here in the UK and it outlaunched every car it came up against. I am running the same event this year over the standing mile.

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      07-11-2008, 04:44 PM   #9
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in fact the 335i uses the ZF 6HP21 and the 335d uses the ZF 6HP26. Same generation trannies, just the latter is stronger and of course a lilbit heavier. The gearing is not the same, I suppose the 335d has a lilbit longer gears to adapt to the shorter rpm range of the diesel.
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      07-11-2008, 06:36 PM   #10
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Those "D" Bimmers are the way of the future. I just ran 1000 miles in Europe on congested cities and high speed highway runs with a 320D E91 and got over 32.2 mpg.
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      07-12-2008, 04:52 PM   #11
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So how does it really stack up to a tuned 335i is the question.

Yeah a ton of toque. But I am not really sure which one is better performer.
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      07-12-2008, 06:09 PM   #12
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didn't you watch the stig in the 535d on topgear? go check it out. it ran slightly slower on their track than (i forget if it was a 535i) same platform car. this was a few seasons ago so you may be able to topgear it.

diesel cars get great gas mileage when you aren't dumping mad power out of them. just like the prius MPG goes into the toilet when you drive it like you stole it (especially tuned).

the advantage in europe is their clean diesel costs the same as their v-power (99 or 100 octane UK [=92 to 93 octane US R+M/2].

We pay about 10-15% more than 93 octane for clean diesel. Plus the mandatory UREA on us bmw's (i'm pretty sure) may add more costs of operation but i am not clear if bmw requires a UREA for their cars yet.

I'm pretty sure the USA gasoline still contains too much sulphur to do the stratified fuel injection that the european gasser's can do which is about 10-15% more MPG at steady state speeds/idle than the american counterpart.

i'd be curious about the weight difference between the 3.0 sequential twin turbo diesel block is compared to the x35 block and turbo etc.
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      07-13-2008, 04:25 AM   #13
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Diesel in the UK is now approx 10-15% more expensive than Unleaded, my remapped 335d returns a combined mpg of 37.7, that is a mixture of 60% motorway driving and 40% around town.

Weight wise the 335d (twin turbo) is 45kg's heavier than the 335i (twin parallel turbos) at 1655kg v 1610kg.
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      07-13-2008, 08:29 AM   #14
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There are a lot of quite good ECU flashes for the n35D engines here in Europe. However, I would never consider a 335D register turbo for the e90/e92/e93 series. Diesels have a narrow power band ( thats why they are all steptronics ), they sound not good at all and will never behave like a petrol gas engine. Probably the best application for diesels are heavy cars like the X5, trucks, etc. I owned a performance tuned X5 3.0D for almost 2 years, my best day with this car has been when the dealership bought it back and delivered my 335i ( the new owner who bought my car likes the X5 tune ) .

A Vishnu V3, Dinan or Noelle tuned 335i will beat every performance tuned 335d in any performance and / or fun related discipline. Fully warranted, in case you like to.

My first (BMW) diesel has been my last diesel. A lot of more HPFP issues compared to the 335i. Great cruising milage is not everything. The price of the cars ( 335i / 335d ) is equal here in Switzerland. The quality of the diesel in the US seems to be another problem.

Cheers,
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      07-14-2008, 06:34 AM   #15
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Quote:
Originally Posted by e.n335 View Post
There are a lot of quite good ECU flashes for the n35D engines here in Europe. However, I would never consider a 335D register turbo for the e90/e92/e93 series. Diesels have a narrow power band ( thats why they are all steptronics ), they sound not good at all and will never behave like a petrol gas engine. Probably the best application for diesels are heavy cars like the X5, trucks, etc. I owned a performance tuned X5 3.0D for almost 2 years, my best day with this car has been when the dealership bought it back and delivered my 335i ( the new owner who bought my car likes the X5 tune ) .

A Vishnu V3, Dinan or Noelle tuned 335i will beat every performance tuned 335d in any performance and / or fun related discipline. Fully warranted, in case you like to.

My first (BMW) diesel has been my last diesel. A lot of more HPFP issues compared to the 335i. Great cruising milage is not everything. The price of the cars ( 335i / 335d ) is equal here in Switzerland. The quality of the diesel in the US seems to be another problem.

Cheers,
Eugen
Fair enough point of view. However, I use my 335d mainly for business use and long journey's so for me it makes sense to have a diesel over the petrol equivelent, it costs a touch more than the 35i but has better residuals and cheaper running costs. Like I said I get on average 37mpg, in a 35i this would probably be under 25mpg. I don't track it so the need for long revs and a manual box are irrelevent, I just need a fast mile muncher and the 335d fits the bill perfectly, especially once remapped.

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      07-14-2008, 08:09 AM   #16
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I drove a 535d from Munich to Austria last year. I power braked it at intersections and was surprised how quickly it launched. I would say from 0-15mph it was very fun. I also took it to about 150mph on the autobahn.

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