F40 engine on dyno

Pardon my intrusion here as I don't have an F40 but my situation is somewhat similar as I'm going through these issues with a pair of somewhat newer (1996) twin Weber/Marelli ECU's on my twin turbo Maserati Ghibli Open Cup car. I know that Motec in England did a coversion for another fellow that owned the same car as I do and they ended up making an adapter so that they could use the the same harness. It might be worth giving them a call. I'm not certain but I'd bet the ECU connector is the same?

This car uses two sets of sensors (one for each bank) but it's not needed so they ended up just using one set.

Someone mentioned an emulator and I assume their talking about an Eprom emulator that would allow you to program the system with out removing the chip (until you needed to burn a final map).

Does anyone know anything about the system described on the website?

http://216.239.37.104/translate_c?hl=en&sl=pt&u=http://auto-tecno.com/Downloads.html&prev=/search%3Fq%3Dremap3000%26hl%3Den%26lr%3D%26rls%3DGGLD,GGLD:2003-47,GGLD:en

At the moment I'm chained to a chip developer in Germany and I'm in New Jersey so it's a bit tuff.

The Motec route sounds much more flexible but I'm concerned about starting from scratch on an engine that NO ONE knows anything about over here.

Bob S.

 

Call James at Norwoods. If they can do an F50, your car will be no problem.

 

ecu connectors are out there,,, they are 55way AMP connectors (i think,, mind is slipping from me) this is the way i would do it myself

yes i was on about eprom emulation, but sorry i dont know anything about that program you posted! (red faced) but will look a little more into it

gareth

 

I just took one the ECUs out of my car to fit a PLX R-500 data logger to it and I made a note that the AMP connector on the harness reads 925380. It's 35 flat pins, 18 on top and17 on the bottom. Mine is a IAW04/3C box from 1995 so it's probably different.

Bob S.

 

sorry i am wrong it isnt a 55 way amp,,, you are correct (red faced)

 

Rick, hows the rear wheels spinning problem going ? SI there any way to sort it out ? or is the only solution to gently press the throtle everytime ?

Can you post the pic of your avatar please ?

 

Thanks for the pic. I love those wheels ! What brand are they ?

The LM wing will help the spinning wheels pb ? even at low speed ?

 

The reality of a car with huge horsepower and torque and no traction control is that you will get wheelspin - there is nothing you can do about it. Improving mechanical grip by getting stickier, larger tyres, lengthening the lower gear ratios, and modulating the throttle and short shifting while driving can all help to improve the situation.

A rear wing (spoiler) works by deflecting oncoming air, and so pushes the car (and hence tyres) into the ground, improving traction. This only works when there is enough airflow (i.e. speed) to make the wing effective. Off the line, a wing will have no effect.

I don't know the specifics of an LM wing, but a Formula 1 car's rear wing shows significant effect from around 100km/h, depending on the downforce setting (e.g. high downforce Monaco setting versus low downforce Monza setting).

 

Thats what i was thinking . Thks both of you for the answers .

 

I am about to put an F40 on our Dyno Dynamics four wheel drive Dyno. Our goal is to extract as much HP from the car without performing radical modifications.
I have not seen any mention of coil over plugs ignition. The F40LM I worked on used these along with some specially made spark plugs. When I contacted Champion about the plugs I was told that they were hand made by their racing department. The COPs were Magnetti Marelli.
After all the chatter has anyone remapped the stock ECUs with anything other than the Caribou chip?

 

Thanks for the information. I am trying to determine what has been done the car in its' past life. I am told the turbos are LM but they look too small to me.
Tailpipes are black and sooty. I have checked the fuel rail pressures and they appear to be very high, (2.8 bar). However I do not know if the car has different injectors or ????
You guys seem to be dialed in. Our goal is to make the car coser to an LM than an outright beast. I am also looking to improve water pump capacity.

 

My last post should have read 2.8 bar is low. The factory repair manual quotes 3.0 bar and I have yet to perform the fuel delivery test. The car does have a Tubi, US wastegate, and an aftermarket boost controller.
I have an extra set of stock cams and would like to have them reground. Do you know any cam specs?