E30 Zone

Toby and i had a nice drive over to sunny Norfolk today to get the 335 mapped at Emerald by Dave Walker.

I was going to use all 3 maps for differing fuel types(regular U/L, Super U/L and E85 bioethonol) but the practicalities of having lots of cans of fuel put me off. I ended up driving in with regular U/L in the petrol tank and getting it mapped then draining what was left into some cans and then putting some E85 in the tank.

The E85 is a high octain(105ron?) that in theory allows you to advance the timing more than normal which will give you more power. In PPC Dave Walker mapped his 924 Turbo with it and got about 15 % more power.

Dave knocked a quick basic map up to suit the E85 and went straight on to working on the WOT settings to see if the gains warrented making a full map but my non-turbo engine didn't respond well to it and it didn't allow much more timing to be dialed in. All it gained me was 8lbft in the mid range and 2bhp top end so we decided not to bother with it.

It's probobly the dogs danglies for a turbo engine so it's worth considering using if you get it mapped and reap 15 % gains.

Below shows the results from using regular U/L, there's two lines that closely follow each other, one is the final map and the other is basically the same but with -2 degrees on the igntion.

The power plot lines that are lower are from 2003 when the engine was mapped in my old E34, it's nice to see how my mods since then have helped lift the torque and the power.

If you look at the old torque curve at 2k it was making 180lbft, it's now making apx 30lbft more at the same point. One point of the power plot i'm not too happy about is that peak power drops off to soon in the rev range, if it made it's peak power at around 6-6.2k then i'd may be have another 10bhp. Dave suggested this was down to some sort of bottle neck in flow and to me the most obvious culpret would be the stock exhaust manifold ??

Nice result, Been interesting following this car taking shape and it's really good to see you get a healthy result.

Do you have an M30 fella?
E85 is very populare in Sweden and I have tought about make some changes to the motor so I can runn on the cheap fuel... 265bhp is not bad either and how much milage have your engine done?

cheers Dave

Yeah, it's an M30, i'm not sure of the milage as i bought the Alpina bottom end second hand.

E85 is 3p a litre cheaper the regular U/L over here but it will still work out more expensive to run as you need to use more of it to get the mixture right.

cool nice one i live in norfolk and did not even know this guy exsisted !!!

He's in Watton but i only think he maps his own ECU's rather than doing all sort of different work like a normal RR place.

I got the E85 from Dereham Morrisons.

Nice results Andy!!

Nice one Andy, you've got the results your hard work has deserved mate.

Well done

Andy i'm well pleased for you, such a great result on a proper dyno

Thanks

Awesome Andy.

I also plan to put Emerald on mine so Dave can map it, glad you got good results.

great result! What's the spec on this beastie?

whats the ball park figure for ecu, loom and mapping?can you use emerald on turbo'd motors too?

Think the ECU is about £650 plus VAT, then mapping's something like £275+VAT.

Don't know about the loom but it sure can run turbocharged engines

Pretty darned good result there Andy

agreen wrote:cool nice one i live in norfolk and did not even know this guy exsisted !!!

It sounds like you live in parallel world! Dave Walker is well known from Reykjavík to Nicosia and from Lisboa to Vilnius.
Jan

Thats great results! Well done mate

Nice figures andy. More than enough to deal with the 2.7 boys...(golf tdi's deal with them also)

ste wrote:
I also plan to put Emerald on mine so Dave can map it, glad you got good results.

Only trouble is i don't think Dave has got the BMW VANOS sussed yet, unless you can lock it ?

oakey wrote:great result! What's the spec on this beastie?

ported head with schrick cam
H/C Alpina B10 bottom end
Twin 60mm TB
home made X-pipe in the exhaust
Emerald ECU(no AFM)

Thanks every one for your kind words(god that sounds crap but thanks any way)

You show the final plot with mods plus a tuned plot w/o mods from 2003 so what did the unmapped plot with mods look like, or in other words how much did the retune by itself give?

Andy335Touring wrote: Only trouble is i don't think Dave has got the BMW VANOS sussed yet, unless you can lock it ?

I spoke to him at last year's Autosport show - he isn't able to control constantly variable Vanos but mine's just an on/off on the inlet cam which he can do apparently.

reggid wrote:You show the final plot with mods plus a tuned plot w/o mods from 2003 so what did the unmapped plot with mods look like, or in other words how much did the retune by itself give?

In 2003 it had the head work and the cam, this time around it has higher C/R, twin TB mod and an x-pipe in the exhaust. It was running well but i wanted a proper map done to suit the mods rather than me messing with the fueling with an WB02 sensor.

This graph is the only one i have.

ste wrote:

Andy335Touring wrote: Only trouble is i don't think Dave has got the BMW VANOS sussed yet, unless you can lock it ?

I spoke to him at last year's Autosport show - he isn't able to control constantly variable Vanos but mine's just an on/off on the inlet cam which he can do apparently.

Ah, thats cool, any more plans for it before hand ? Cams may be ?

pic CD in the post shortly Andy.

i can upload a couple of vids if you'd like?

this car is ace on full throttle, really smooth power delivery and it certainly shifts

Andy335Touring wrote:

ste wrote:

Andy335Touring wrote: Only trouble is i don't think Dave has got the BMW VANOS sussed yet, unless you can lock it ?

I spoke to him at last year's Autosport show - he isn't able to control constantly variable Vanos but mine's just an on/off on the inlet cam which he can do apparently.

Ah, thats cool, any more plans for it before hand ? Cams may be ?

I did think of that but I almost think I may as well have fitted an S50 if I head down the high specific output NA route, as cams will lead to throttle bodies etc., then headwork to enlarge ports and so on... so long term I want a supercharger on it. That'll need management and specific cams etc.

Plan is to fit the Emerald for now and get Dave to map it as it should see a benefit even as it is (to compensate for M50 inlet etc). It'll then be ready for the s/c work further down the line.

Bits and pieces at a time basically dude as time and budget allows.

That is great looking,
very nice and stable AFR.
I´ll be it´s a real nice drive.

On the E85, it help with knock so on a turbo car you can raise the boost, that´s where the power came from
more air .
Running higher compression for more power would require something like E85 and thus worth it.

The power isn´t in the fuel or from more timing as you can´t just keep advancing to make more and more power.
Timing retard is not bad it´s just following the natural curve of the fuel burn time. More air = faster burn = timing must be later = peak cyl pressure happens where it makes the most of it.
It´s only fuel that has extra oxygen in it that can make more power in itself.

Nice one Andy - that's

You must be a happy man.

Wow, really impressed with that. It's a seriously proper car and a lot of hard work has clearly gone into it, well chuffed for you Andy. Hope to see it on Feb 9th at Bedford, but I really need to get my arse in gear and book it. Would be good to exchange pax laps

Excellent result Andy, Kudos to you indeed mate

a rocky road with many bumps but you hung in and will now reap your rewards.

Kudos indeed( and props to DW of course )

Wooooow, I've just discovered this thread!

Excellent result Andy, good work sir!

That torque curve!!!

I'd love to see a video if you have one, it must have sounded great on the rollers!

I'm well pleased for you, that must surely make a feature in Dave Walker's article in PPC Magazine! ?

I can't wait to see you run it up the strip at Santa Pod!

Toby_Unna wrote:pic CD in the post shortly Andy.

i can upload a couple of vids if you'd like?

this car is ace on full throttle, really smooth power delivery and it certainly shifts

Cheers dude, pop some pics up please[edit]and a short vid if posible ?[/edit]

ste wrote:
Bits and pieces at a time basically dude as time and budget allows.

Yeah, my wallet is a bit light at the mo TBH, i want to do more stuff but.....

A S/C will make that engine very nice, have you thought about which type of S/C to use yet ?

Theo325 wrote: Hope to see it on Feb 9th at Bedford, but I really need to get my arse in gear and book it. Would be good to exchange pax laps

That would be cool, i'll probobly be slower than you over the lap as i'm not the fastest driver TBH

don't worry Andy, Theo isn't know as "captain Spin" for nothing! Will give you plenty of time to cruise past while Theo aquaints himself with bedfords ample run off!