What did you do in the garage yesterday?

[N7GTX]

carsy said:

Iain, i`m not sure the Vectra injectors will flow enough for your high hp motor.

Also are you running fully sequential. Just wondering how the ecu can pin point individual cylinders.

Hi, the MBE is the B version so wasted spark. I used the Launch OBD2 program which lists every sub system and then automatically selects the correct one. It chose Canbus for this one.
All the readings available were correct for the live data in all the other parameters so it did look to be right.
As above, on original Lucas injectors with 355 at the wheels. The dyno print shows the fall off due to their flow limit.
If I went for bigger ones, there's the cost plus another mapping and then the worry about the gearbox, diff etc. Dom suggested I was on a good compromise.

[phazed 11.83]

355 bhp at the wheels on standard Lucas injectors is fantastic.

I can see your point regarding drivetrain otherwise it really would be sensible to fit bigger injectors and have a remap although this just might make slightly different graph characteristics at the top end and may only give you a little extra bhp.

Hard to say unless you actually carry out the works.

[N7GTX]

QBee said:

And what bhp are you running Iain? And is it the 3.5 bar regulator Eann normally uses?

The regulator is standard as is most of the engine, believe it or not! It seems from what others post that each tuner has their own opinion on what components can achieve. Sometimes I doubt what Dom has done when I read the posts but it seems he has achieved a remarkable result with standard parts.
He said at the time, after the final road test, 'that is one monster of a car' but he also said the fitting of bigger injectors would achieve 400 at the wheels. He felt that would be enough from a 4 litre to remain reliable.

So I am not sure whether to stick with the original injectors and have them cleaned/tested or fit the more modern Vectra ones

[Steve_D]

Sardonicus said:

See if you can move the fault codes by moving the suspect inj's around on the fuel rail all this OBD stuff is all very good but its how you interpret the info and thats hardly infallible...........

Well worth investing in an IR heat gun to check each exhaust manifold branch which will soon show which cylinders are not playing the game. Again it does not tell you what the fault is but may help confirm findings elsewhere.

Steve

[N7GTX]

Steve_D said:

Sardonicus said:

See if you can move the fault codes by moving the suspect inj's around on the fuel rail all this OBD stuff is all very good but its how you interpret the info and thats hardly infallible...........

Well worth investing in an IR heat gun to check each exhaust manifold branch which will soon show which cylinders are not playing the game. Again it does not tell you what the fault is but may help confirm findings elsewhere.

Steve

Ah yes, good idea. More TVR expense....

[phazed 11.83]

I have one of those infrared temperature readers.

It's only a cheapie that works well. I can send it to you in the post if you want to use it.

[nick_mcuk]

Chasing more gloss and shine on the Chimaera...was teaching my little buddy how to machine polish too

IMG_6881 by Nick McConnell, on Flickr

IMG_6880 by Nick McConnell, on Flickr

[jojackson4]

Made a mess

[Steve_D]

jojackson4][url said:

Made a mess

That washing machine is no good.....You need a dishwasher for that lot.

Steve

[phazed 11.83]

Why have you taken the engine apart Peter?

[QBee]

N7GTX said:

Ah yes, good idea. More TVR expense....

Less than a tenner.....but make sure you get one with the biggest possible temperature range.

At least 450 degrees C.

[jojackson4]

phazed 11.83 said:

Why have you taken the engine apart Peter?

It's a spare I got cheap
Only after the timing cover really
And I wasn't paying over £200 for one
It also had a TPS and a OE stepper motor so if any one is looking for some bits I have some

[N7GTX]

QBee said:

N7GTX said:

Ah yes, good idea. More TVR expense....

Less than a tenner.....but make sure you get one with the biggest possible temperature range.

At least 450 degrees C.

Thanks for that info

Going to eBay shortly while handbrake is in the bath for an hour or two....

[N7GTX]

phazed 11.83 said:

I have one of those infrared temperature readers.

It's only a cheapie that works well. I can send it to you in the post if you want to use it.

Thanks Peter for the offer but I really should have got one ages ago so now no excuses.

Just done a quick check of all 8 injectors and every one is 16.6 ohms. To rule out the possibility of a false OBD code I'll be swapping positions first thing in the morning. If it is a false code then the heat gun may come into its own. If its not then Vectra injectors may be the option.

[bluezeeland]

N7GTX said:

plugged in my Launch x431 and managed to get some results in the OBD2 program (MBE fitted but I don't have the software).

Edited by N7GTX on Saturday 12th August 18:49

Could you kindly elaborate on this, please ,

[N7GTX]

When my MBE ECU was fitted, an OBD diagnostic port was also fitted. This allows the standard 16 pin OBD connection to be made.
The Launch x431 is a diagnostic tool from China - my model is obsolete - and has 37 manufacturers programs plus OBD. This protocol is obligatory in Europe but it was largely down to the manufacturers as to how much info they would release on this side of their diagnostic program.
In this case all the OBD protocols are stored on the Launch so if you do not know which one applies to the car you are testing, the Launch will automatically search for the correct one.
Once connected you get a minimum of read fault codes, clear fault codes and diagnostic data. This is usually all you get. Some more advanced and much newer systems will give all sorts of data concerning oxygen sensors and emissions information as required under EU regulations.
My old and trusty Launch:


OBD diagnostic socket (on almost all EU cars since 1994):

[bluezeeland]

N7GTX said:

When my MBE ECU was fitted, an OBD diagnostic port was also fitted. This allows the standard 16 pin OBD connection to be made.
The Launch x431 is a diagnostic tool from China - my model is obsolete - and has 37 manufacturers programs plus OBD. This protocol is obligatory in Europe but it was largely down to the manufacturers as to how much info they would release on this side of their diagnostic program.
In this case all the OBD protocols are stored on the Launch so if you do not know which one applies to the car you are testing, the Launch will automatically search for the correct one.
Once connected you get a minimum of read fault codes, clear fault codes and diagnostic data. This is usually all you get. Some more advanced and much newer systems will give all sorts of data concerning oxygen sensors and emissions information as required under EU regulations.
My old and trusty Launch:


OBD diagnostic socket (on almost all EU cars since 1994):

Txs for replying, do know what to ask for now ! (albeit this launch is pricey.....)

[N7GTX]

Unless you do diagnostics as part of your work, a cheap OBD2 diagnostic scanner can be had for well under £100 which will do the same. The new version of the Launch is a lot faster and more reliable than my old tackle.

[bluezeeland]

Iain, would a bluetooth dongle and app on phone work for diagnostic (non pro) purposes work ?

[N7GTX]

Yes, many cheap ones out there.
I also use a Bosch KTS tool. Plug that into the socket. Bluetooth enabled so I can be under the bonnet testing things from my laptop.
Some on here have apps so they can view the data as they drive around - think that may be Rovergauge but I don't have that.
This is just an example of what is available:
http://www.ebay.co.uk/itm/OBD-OBD2-EOBD-Bluetooth-...