TVR M3000 - Jaguar S / duratec V6 engine

[Mads Lund]

Jaguar S type 3.0 V6 duratec engine, installed with bmw M3 LSD, Bwm suspension components, homemade exhaust, intake , A arms, propshaft, driveshaft and many other bits and pieces.

At the moment is the car rolling, but still some debugging work left, in getting the engine to run stable (had an issue with a blocked vvt valve, currently struggeling with a lean/misfiring problem in right bank/cylinder 1)

But 240hp to 800kg should make it a fun drive, and with the LSD and a superior handling is it already making me smile on the small twisty roads, just need to sort out the remaning promlems with the engine and get the full power from it.

VEMS notes... one big wish from me, would be to get some flexible analog output's, I mainly miss to get an analog lambda out for my AFR meter in the car, but allso engine temperature, oil temperature wold be a nice to have feature - at the moment old analogue instruments require double sensor setup all around the engine :-( as you can't drive the instruments from the VEMS box, and the lack of open source on the firmware means that I cant program the functions my self.


...And there is a rotrex supercharger on the shelf ready to make it's entry next winter :-) 

[gunni]

I would connect the plenums up as a test to see if the different lambda readings are because of throttles not being identically open.

[Kamuto]

I would connect those plenums together with small pipe, it would make pressures equal

[Mads Lund]

Throttle positions are balanced with a flow measure thing. And plenums are connected with a 20mm hose on the rear (black hose, visible in the pictures).

Lambda values are better after I changed the coils and cleaned the VVT valves. I'll make some new logfiles tomorrow, but power is in place now. I was at a manouver racing today, and it do spin the rear in 3'th at 60 mph (cold tyres, dry tarmac)

The trigger problem didn't show today, but I'm not 100% sure it's cured, so I'll change the sensor and sensor cable, question :

What's the right way to ground the shild on a twisted pair calbe for a VR sensor ? ground on the engine next to the sensor - ground at the groundpoint close to the ecu - or do both ?

[Kamuto]

ground it to the sensor ground near to ecu

[Mads Lund]

I've solved my signal noise issues, and got the car performing as expected.

Here's a snap from a 5.5sec 0-100 kmh (0-60mph) run. I need to add some traction control and change the diff ratio to make 2'nd stretch all the way to 100kmh, as you can see do I need 2 shifts, loosing 2x0.45sec on the 0-100, and the tyres smoke all the way :-) , Total run is 6.2 sec, from the marker (standing start) to redline in 3'th (125 kmh)



For the VEMS part could I need some adwise on the throtle pump setup, as you can see do both banks run lean when throttle is applied.

Br Mads

[peter_jensen]

Hi Mads

Please post your log file.
It´s easier for people to help out when they have something to look at :-)

Peter

[se7ensport]

LOVE the project.

I used to have a 1976 3000M with the original V6 Essex bored out to 3.1, stage 3 heads etc putting out 220bhp on carbs, really do miss that car.

[Mads Lund]

A few videos of the car on the track, eating lotus's for lunch

https://www.youtube.com/watch?v=nW9K1fyghDA&feature=youtube_gdata

https://www.youtube.com/watch?v=ZCYsVxWx3Kw

[Mads Lund]

Brand new engine, light flywheel, 285 cams and vems. Winner of the first danish hill climb round