Installing new standalone fuel mgt into 2.2

[M Blur]

Existing harness is a right mess, suffering from 10 yrs of racing bodges and the like.

Anyone tried installing a Motec, GEMS, AEM etc fuel mgt system instead of the standard one?

Alternatively any electrical gurus in the UK who could install a full new harness? Would probably look to have an egt and lambda gauge fitted as well as a micro dash..?

What sort of hrs labour would I be looking at..

[mike_sekinger]

Existing harness is a right mess, suffering from 10 yrs of racing bodges and the like.

Anyone tried installing a Motec, GEMS, AEM etc fuel mgt system instead of the standard one?

Alternatively any electrical gurus in the UK who could install a full new harness? Would probably look to have an egt and lambda gauge fitted as well as a micro dash..?

What sort of hrs labour would I be looking at..

<{POST_SNAPBACK}>

You should make contact with Michael Rodrigues (member: mchlrodrigues) who has a Motec M4Pro installed on his 1987 Turbo HCI.

He should be able to give you an insight in to the level of commitment required when undertaking this kind of work.

[M Blur]

Thanks Mike - speaking with MR re his quaife at the mo.

I guess a new loom, relays, fuses etc would do the trick. The ecu's nice and I really like Freescan. I wonder if Steve at SJ would do a re-loom for me..?

[DanR]

Check out www.kalmaker.com.au

With this you'll be able to program the Lotus-Delco unit however you want. Don't know if it is promoted outside Australia. Lots of users here and an active forum too. The Delco is quite a sophisticated unit.

[karmavore]

VERY interesting. Is there any proof that it's ever been used on an Esprit?

[Dermot]

As far as I know the answer is no to the Kalmaker. I did enquire about a yr or so ago, the very low installed userbase does not make it an attractive project for them.

Dermot

[Vulcan Grey]

As far as I know the answer is no to the Kalmaker.  I did enquire about a yr or so ago, the very low installed userbase does not make it an attractive project for them.

Dermot

Stuart Russell in Canada developed a piggy back ecu emulating computer (plugged into the memcal port of the GMP4 ECU) that could change Esprit running parameters on the fly. Also had a dash mount diagnostics LCD interface. He was planning on offering the system for sale.

His website apperas to be gone though

http://members.rogers.com/stu.russell

He might still be on the Lotus List.

Otherwise I'm sure John Welch or Marcus could make custom MEMCAL EEPROMS.

[Tony94S4]

http://www.tunercat.com/

TunerCat have a wonderful tool to allow you to explore your ECU and, more importantly, alter the various tables and mappings within it, i.e. boost. However, you need to have a definition file for your particular ECU to allow you to do this. Over the past couple of weeks I've been building such a file, which is now finished. I'm charging

[M Blur]

[Tony94S4]

[DanR]

There a number engine swaps of non GM origin here. Builders will cannibalise and fit the harness, hardware etc from a Commodore at the wreckers, and reprogram using the Kalmaker. Even seen people at the track playing with their laptops and finetuning their set-ups. Don't know how well, especially with adjusting their ignition curves in the absence of a dyno.

Edited May 7, 2006 by DanR1201

[karmavore]

John can and does make custom EPROMS (wcenginering.com) but I don't know what he requires to perform the work. Ideally, you would let him tune your car for you. Mailing chips back and forth across the pond seems pretty inefficient.

If you're serious just go MOTEC.

PS, John did the tunign work on teh 180 Racecars and they use the Delco box.

If it works for them...

PPS, They also use a piggy back boost controller and/or fuel controller, I think

[f1karting]

Jon.. I have a spare 2001 Pectel T6 and software for sale.. Its just been tested by Pectel and updated with the latest firmware.. Its a $4500 ECU.. its the full meal deal!! Full wide band compatible and many laps of datalog memory. Ill take US$2100 for it.

Send me a PM if your interested.. J

[Speedquest]

I am thinking of replacing the Delco system in my Esprit. Remember, this system was designed in the mid eighties! I am looking at the MegaSquirt system. It is inexpensive enough, and I have heard good things about it.

http://www.bgsoflex.com/megasquirt.html

It is can be tuned from a PC, something that I am looking for. Oh, by the way, an assembly-it-yourself ecu kit can be had for less than $200 US! I will use only four injectors, but upsize them to around 660cc for better fuel control, along with a hybrid turbocharger and a bigger plenum. My goal is 400 hp.

Darnel

Edited May 16, 2006 by Speedquest

[karmavore]

I will use only four injectors, but upsize them to around 660cc for better fuel control, along with a hybrid turbocharger and a bigger plenum.  My goal is 400 hp.

<{POST_SNAPBACK}>

Are you at all worried about rough idle or excess fuel usage around town?

[V8Esprit73]

Has anyone written proper race-only maps for the 2.2, using the 2 bar map sensor and say oversixe injectors like mine..?

I juts want a pukka racing map that works nicely, it doesn't have to be road friendly just bloody good on track with a nice high boost setting..for a high fuel flow.

<{POST_SNAPBACK}>

There are loads of options on ECU's. DTA, Emerald, MBE, MOTEC, Omex, Gems etc to name but a few! Each of these manufacturers have a range of different ECU's available with various options/capabilities. Prices generally start around

[Speedquest]

Are you at all worried about rough idle or excess fuel usage around town?

<{POST_SNAPBACK}>

With modern microprocessors and modern design injectors, modifying the pulsewidths of the map at lower RPM's should control it. Remember, the Delco was from the 80's. Would you use a computer at home with a microprocessor designed in the 80's? Modern technology has improved by leaps and bounds since the Delco injection system was designed. Also, the MegaSquirt has provisions for controlling a second set of injectors, so I can always add them in if I don't like the performance.

[karmavore]

You mean my TI with it's cassette tape drive is obsolete???

[Speedquest]

Are you at all worried about rough idle or excess fuel usage around town?

<{POST_SNAPBACK}>

Just spoke with RC Engineering tech support. The driveability will not suffer if you use four 750cc or below injectors. According to him, a 550 cc injector can support about 100 hp, so I will use four of them controlled by the MegaSquirt system to reach my 400 hp goal. I may keep the secondary injectors and tie them to a knock sensor only.

Darnel

[rwiggins951]

I agree that the technology has come a long way, but typically the aftermarket setups (except perhaps Motec) are pretty simple compared to the standard OEM stuff. If they are not, most of the additional functionality and tuning are beyond the skills of most tuners. Tuning is definitely the key. I recommend taking a look at some of the options available in piggyback computers. Piggyback technology has come a long way. This saves you all the hassle of custom harnesses, trigger wheel nightmares, etc etc. The concept is you can modify with quite a bit of precision, the signals going to the stock ECU to provide the output you want. Installation is easy, price is low, you don't need to replace all your sensors, and you usually do not have to start your tune from scratch. I use the MAP-ECU on my Esprit v8. It was only about $450 and includes a 3bar map sensor. It allows me to fine tune the engine fueling, and would allow me to compensate for different injectors. The slick part is, you can install it in learn mode and have it build your base map before you switch over and start modifying. Just something to think about. I've also used the perfect power SMT-6 on a porsche turbo. I wished that product had existed when I did a stand alone on the same model porsche years earlier. The SMT-7 seems pretty slick also but is not as cheap and easy as the MAP-ECU that I decided on for the Esprit.

Hope this helps,

Rod

98 V8

[karmavore]

I may keep the secondary injectors and tie them to a knock sensor only.

<{POST_SNAPBACK}>

How would that work? Wouldn't it be too late to add fuel after the knock? Just curious.

[rydning]

I`m about to put on an aftermarked ECU on my esprit.You have to take of the hole engine harness of the engine and wire it up again with the instruction from the that ECU. If not its gona be to messy....

And it looks like the Direct Igniton/trigger system with 6+1 slott on the flywheel is not working with aftermarked system... you have to make a new trigger for the Crank and 1 cam.

I have a Autronic SM4 with autotuning for lamda value. And the nice thing with this is when you have got the spark map.You put the wideband lamda to it,an it will be right in the value you want.

Only

Edited August 17, 2006 by rydning

[M Blur]

I will use only four injectors, but upsize them to around 660cc for better fuel control, along with a hybrid turbocharger and a bigger plenum.  My goal is 400 hp.

Darnel

<{POST_SNAPBACK}>

Hey Darnel,

John Wech etc recommends against using only 4 injectors - surely using 2 injectors for overboost is a good way to prevent your car going lean under loan.>?

He also indicated that oversize injectors on the Lotus system was a no-no - is the Megasquirt a full sequential injection system.?

[DBredS4]

http://www.wcengineering.com/esprit/fuelinj.html

He sells bigger injectors on his website. Or are you talking about enormously oversized ones?

Hey Darnel,

John Wech etc recommends against using only 4 injectors - surely using 2 injectors for overboost is a good way to prevent your car going lean under loan.>?

He also indicated that oversize injectors on the Lotus system was a no-no - is the Megasquirt a full sequential injection system.?

<{POST_SNAPBACK}>

[karmavore]

I'm quite sure in all, but maybe racing, applications John uses OEM flow Primary injectors.