xr2i-carl

Myself and a few buddies met up for a Dyno day at the weekend, or Rolling road day, whatever you would like to call it.

There were nine cars that ran on the rollers, comprising of 3 x 335d, 2 x 335i's and 1 x 330i, 1 x 130i, 1 x 320si (like alexf mentioned earlier) and 1 x 120d!!

What i am going to post up is about the 335d's as i have one and the 2 335i's One modded one stock.

Im quite new to all this R/R lark as my RS turbo only ever managed 20 secs on PTS rollers before telling me it had a knackered fuel pump. So it made it much more fun having a car that was reliable and was able to have a few goes on the R/R


BMW's quoted figures for the 335i and 335d are as follows:

335i: 306bhp and 295 ib-ft
335d: 286bhp and 428 ib-ft

We had an idea that the standard 335i would make higher than BMW suggest as previous reports and r/r tests have shown the 335i to make anywhere between 315-325bhp.. it was to be interesting to see if we found the same!

firstly the 335d's, all 3 were competely standard. No re-map in sight.

first one on and an impressive 300 solid BHP. Cant remember this ones torqe tho.




followed by my run, and with pics










My graph showing 310.4BHP and 446 ib-ft.

i was very impressed and the only reason we gathered that it made more HP and torque compared to the other was the amount of miles on my vehicle.

the 3rd and last 335d




again clearly higher than what BMW quote. But again from a standard very low mileage car (2 months old)


I thought maybe the rollers could be over reading but the fact not every car of the nine made their supposed power made me think that it hadnt over read.

3 cars actually made LESS than the factory BMW quoted figure and a further one actually making only just over.

Not as if the DYNO was over reading.

So onto the highly acclaimed 335i:


The First 335i to hit the rollers was completely standard BAR a Quaife Limited slip differential.. Which would not affect HP and torque levels.


Here is his graph








Just as what we had seen before 322bhp, what we thought after seeing other results of 335i's

So higher than BMW's figure but about right for EVERY other 335i thats been roaded


Onto the modded 335i

all this car has is a plug in module, which ups boost and fuel and adjusts the timing, i feel it is slightly crude but we had an idea of anywhere between 380-400bhp and she was bang on the money




She made impressive power, as alot of 335i with this tuning module so everything was as we predicted apart from the 335d showing there hand beign higher than we all thought they would be












Also its worth noting the other 2 335d, will probably loosen up and make 310bhp ish after a few more miles.. Both cars have since been re-mapped and mine was due to but i had to cancel as my car came up with an error code she drives fine but is booked into BMW to see what it is before i go ahead and re-map.






Now the other two 335d, who were 10BHP DOWN beforehand NOW pull past me easily.. with expected BHP to be now 350-360 with over 500 IB-ft torque!!! compared to my stock 310bhp still







On the run up there i had some, AHEM ''runs'' with a mates 335i again like i have before at such meets and there is NOTHING in it between us from a standstill to 130 and from a rolling start to over 130! (of course of a private test track )

In gear i can pull away quite easily with so much torque and the 335d pulling effortlessly from low rpm..



Quite a revalation this new twin turbo 3.0 diesel id say

she revs like a petrol, and does not have that drop off in power you see with EVERY other diesel including the NEW 3.0 TDI Audi single turbo diesel i drove recently in the new A5 coupe... The Audis lump drops off power sharply after 4k rpm whereas the 335d pulls hard to the 5k redline.


So whats next for myself and the 335d?

A re-map most definately with my higth starting HP it would be nice to achieve 360bhp or more and 520-530IB-Ft of torque and having been out in my friends LSD equipped 335i that is 2nd on the list..

Makes a fantastic handling car so much easier, and far quicker out of bends.. The downside is the price 1200 quid fitted!


After that my first trip to the ring which im very excited about!!

Please appreciate i took time to go thru this and post it up in its entirety and for your information, not only for BMW fans but also for Ford fans. its info that you can be armed with when you come up against one on the road for instance.. ive taken the time to Post a Constructive post, please POST CONSTRUCTIVELY

Carl

Mr Orange

Very good report this.
Guess these diesels would piss over most cossies then.
The torque to be had is disturbing really

24bhp and 18lb ft is good gains purely by adding miles and letting engines bed in

1200 is nothing for the extra control it will give over an non equipped car

Benni

Fantasic mate, I would love a 335D.

Stavros

Both the petrol and diesel 335s do some shithot numbers nice looking and bloody quick cars by looks of it, mega tuning potential considering fuck all has been done to them really!

What were the wheel figures? Flywheel numbers mean bugger all really.

Wouldnt really call revving to 5k revving like a petrol mind you

Mike1

Hi Carl

Impressive stuff
A 335d did VERY well at Fighting Torque I recall

Just out of interest what did the 330i, 130i and 320si make on the rollers? ( Is there a link somewhere? )

xr2i-carl

well not so much 24bhp, as two low mileage 335d both made 300ish so mine is only 9-10bhp on them with a hell of alot miles more!


Hi Stav,

thanks for your input At the wheels i made 257bhp the stock 335i 10 odd bhp more. (53bhp loss i made which is about right?!)

When i say rev like a petrol, i mean AS QUICK as a petrol. The way it zooms around that rev counter is unreal




330i

BMW figure:258bhp
Actual figure:255bhp


130i

BMW figure:265bhp
Actual figure:267.8bhp

320si

BMW figure:177bhp
Actual figure:161.4bhp





Carl

S1rst

Good stuff mate.

based on the figures of the standard cars, i cant see a reason to have the petrol 335i over the 335d. Id take the diesel all day long.

Stavros

have any modified 335i and 335d been performnance tested yet? be interesting to see what these numbers relate to in the real world.

xr2i-carl

Only the one i posted 399.9bhp with a plug in module!!

Couple of mates are getting their re-mapped 335d roaded monday

EDIT*** performance wise... i think the best 1/4mile is well into the 11's trapping over 115mph

Stavros

Yeah, i meant with some Datron gear etc, 0-whatever and obv the rolling speeds you would get too.

Next time we have a Brunters day ill get 1 of each there if any of em was up for it, be well interesting to see.

Jimbo.

some very nice figures there, good report to

tabetha

Some nice INNACURATE figures there, crossover point is off so means jack shit, massaged figures as people love them.
I don't doubt that the diesels produce ace torque and lots of it, I am a fan, but would not have a beemer if it was free personally.
They also weigh a lot more than most cossies, so not as easy as you think PWR wise!!
Why people beleive scaling of torque/bhp when coincident is wrong baffles me.
tabetha

Stavros

is that right?

i cant remember the crossover point etc.

also as they autos im suprised they got a clean run out of them, and id love to see the wheel figures.

either way, numbers mean fuck all, thats why i was on about timing them, only way to prove anything.

tony_turbo

Does daddy want a diff?

xr2i-carl

Tabetha, i made 257bhp at the wheels


Why would they massage some figures and not others

Read the post again.


p.s i went down the pod and beat a load of cossies

xr2i-carl

Yes i do, it aint daddy's no more

Stavros

Did you buy that expensive ass car off your old man then, or he give it you?

Its not hard to beat Cossies in drag racing mate, they totally suck at it

scoooby slayer

iTrader: (4)

crossover point is 5252 iirc and the diesels dont rev that high and all the petrols are crossing at around 5252 so that all ok.

Doh

what times did you do at the POD?

xr2i-carl

13.9@102. It wasnt the best day and i hadnt really prepared for it. First time going with an auto also. full tank juice

i think i could have knocked off half a second.

Stavros

I remember my first try at Pod in my old 3dr Cossie I ended up with a 17.5 it wheelspan so much

By end of day I was doing 13.3@110mph tho, still with bad wheelspin in the first 3 gears due to tons of camber and homo 205 wide tyres.

Ridgey

iTrader: (5)

With all that torque and power, auto and fancy electronics helping along supprised 1/4 wasn't quicker ?
Problem is BM's are to lardy......

xr2i-carl

Yeah i agree, she is hefty. But stock car you cant grumble with the 13.9 and she is definately capable of a mid 13 standard.

Just wont ever find out because ill re-map before my next trip to the POD

C4llyT

Petrols cross at 5252, and are on scale, but I'm no RR expert.
Although, all I do is take the ATW figure, add 10, and divide by 0.88.
Don't trust corrected figures.
Some scary torque on those diesels

Twellsie

iTrader: (1)

some impressive results, but in the real world, due to the weight of the things, i cant see them being any faster, than a mildly quick cossie at the pod

GARETH T

driving that car everyday, your a lucky man!

amazing car! would have a petrol myself though

GARETH T

everything crosses at 5252, be it petrol, derv, gas or even fart power!

if the scales are the same of cause

foreigneRS

and are bhp and lb.ft of course

xr2i-carl

At the pod your right, like i said stock is possible to get a 13.5, quick motor really, after a re-map?? a high 12?? who knows.. only time will tell

But the point is on the road.. not much can touch it, effortless acceleration from any revs at any speed.. but the time a cossie has fumbled for a gear a 335d is gone, the legs on it are un real

indicated 100mph = just a whisker over 2500rpm, the torque curve us linear , it pulls to over 160 renlentlessly...120-140-160

then i had to stop as i ran out of runway...


Carl

scoooby slayer

iTrader: (4)

i can comment on this i race a 330 in my old saph which was t34 23 psi on greens and i pasted him down 2 miles of back road. but i will say they are quick would give a stage 1 saph a run for its money.

xr2i-carl

and thats a 330i lot less HP and torque!

C4llyT

330i would struggle against a stock cossie, so no surprises there...
It's no sports car, nippy cruiser really

scoooby slayer

iTrader: (4)

330 40 hp less ? and i know the driver he was all out gained at least half a mile across the 2 mile road. 40 hp wouldnt make much difference. 1/4 mile would be different as the bms would get the power down much easier i think.

xr2i-carl

what year was the 330i???

330i 1/4mile in the 15's mate

the new coupe 330i 1/4mile 14's under a ton, they are considerably slower than the 335i/335d!

C4llyT

If you're referring to an E46 330, it has a slower 1/4 mile time, and less bhp per tonne.
Has about 25-30 brake more than stock rwd cossie, but the extra weight more than counters that

xr2i-carl

E46 330i is 236bhp
E90 330i has 258bhp
E92 330i has 272bhp

Asturias

I ve driven a few 335d and 535d.They are not that quick really compared to M5s and modded cossies,evos ect.

The quick auto box makes great use of the available torque and really exaggerates the acceleration because it is constantly held at peak torque but when you switch over to manual mode and put in say second and give it a boot like you would a cossie, they feel heavy and slow imo,dog slow actually compared to M5s.

The 335I though is great but the turbos are weak as hell plentey going bang like the diesel ones.

Stavros

shame most cossies are at least stg3 and in the real world theyd absolutley rip the shit out of an 335d no matter what you think.

youve got the biggest advantage on the strip as you got grip and takes no skill to launch, unlike a cossie.

on an open road the cossie has a massive advantage.

like said before, brunters proper performance times will tell the true story even if you cant find someone with a decent stg3 cossie to show you the way home.

xr2i-carl

thanks for your input. I have been applauded by friends with E39 m5 who cant even get into the 13's (i know they can) so the 335d aint really slow.

i have raced an E60 M5, a car which is capable of beating a Gallardo, and yes it CAINED my ass, like it should do... but those things run low 12's trapping at over 116mph.

I only know of two 335i which have had turbo issues. Both were low mileage and stock.

My friends has been running 399.9bhp with no issues so far on stock components.

P.s 535d, is quite a bit slower than the 335d.

cossie4i+

iTrader: (15)

You can use my old banger for a cossie bench mark

Steve.