Opinions Please

Opinions Please

Author
Discussion

Dodgy Dave

Original Poster:

810 posts

253 months

Saturday 3rd April 2004
quotequote all
I know the best way to check the health of ur engine is to look at ur pistons!
And as you will be able to tell my engine must be running very rich.
Its an SPI so all fuel is controlled by ECU.
The engine is far from standard and wondering if anyone has any ideas on what mod may have a bad effect on the fuel mapping or maybe my ECU has just gone nuts and thinks its american!!!

What makes it worse is it seems some cylinders are worse than others!!

And another bloody annoying thing is i only run it on optimax "The engine cleaning fuel"!!!!







>>> Edited by Dodgy Dave on Saturday 3rd April 21:13

Dodgy Dave

Original Poster:

810 posts

253 months

Monday 5th April 2004
quotequote all
Thanks for the replies
Ok
Nick, The head gasket didnt look in a bad state. Interesting you think it may have been sucking oil and water in as I thought maybe it looked like the cylinders were leaking but looking at it again after what you said i do agree. Never burnt oil or used any water though.

Mike, The cam i put in was designed for the SPI engine. Ive never upgraded the ECU and injector as costs are more than the cars value and would rather put that money towards a kit
For a full spec (dont think i forgot anything) please have a look at my profile as it takes me ages to type out the list!!!

Phil, The reason the block has no number is because i bought it from mini sport.
Can i add a heater tap to the head?
I do have the Lambda sensor installed correctly as maniflow do a lcb for injector cars and puts it in same place as standard exhaust.
It done loads of miles since build which consist of driving the 40 mile round trip to work at mainly motorway speeds if i get up early enough!!
And it is driven fairly hard.
Think its done 10000 miles since i built it.
I was going to change the lambda sensor before as I have had the problem of over fuelling for some time but thought it was cured by a incorrect Thermostat.
Is there anyway you can check the sensor?

Dodgy Dave

Original Poster:

810 posts

253 months

Monday 5th April 2004
quotequote all
Cheers for your help so far Phil

In the order you asked :
The plugs were also dirty, but again like the valves/cylinders some were worse than others

Whats involved in having a block decked and why?

Minisport never saw my car, I purchased the "Short Engine Kit" and did it all myself.

Its the std injector still on there and as far as i know there is no fuel pressure regulator and if there is one its never been touched!

All the ICON does is change the ignition timing.
I thought the only way to adjust fuel on injection mini's was to chuck ECU and Injector body and purchase adjustable ones.
The car was running fine before i took it apart.
The guy at MiniSpeed was impressed how much torque i had when setting up the chip!!

"Checking the picture on your profile it looks like you'll have to drill out the membrane which blanks off the hole"
Ahh i wondered what that was for!!
Is this something which is highly recommended as it can have a bad effect on valves/rings or something other?

Dodgy Dave

Original Poster:

810 posts

253 months

Monday 5th April 2004
quotequote all
Cheers Peter
Beginning to think know I probably could of saved money and time on the mods by binning the ECU and Injector at the start and fitting a Super-Charger with Nitrous!!!
But hey ho you gotta make the best of what you got!!

Im thinking there is something defiantly at fault here, either ECU, Lambda Sensor or injector itself!
I need to find a way of testing each of them separately.

Dodgy Dave

Original Poster:

810 posts

253 months

Tuesday 6th April 2004
quotequote all
Cheers Guys
I think i gotta start with the cheap fixes and work my way along the list in the hope that one of them will solve it.
Saying that though its gonna be very difficult to know if its solved because the car was running fine before I dismantled it.

Maybe regular checks of the plugs and the MPG I get will be the best way to know.

The "Airflow Meter" is the part that resides in the air-filter isnt it?
I think that first then the fuel pressure regulator then the lambda.
I think your right about the ECU phil, They either work or they dont!

Cant I put bigger plugs in with a really high output Coil to help burn the extra fuel!! Ill get a bigger bang then!!!!

Dodgy Dave

Original Poster:

810 posts

253 months

Wednesday 7th April 2004
quotequote all
Mr2Mike said:

Only if you can jam some extra air in as well



So if i charge up the compressor and buckle it up into the passenger seat, feed the hose out of the window and under the bonnet.
Cut a hole in my filter and run it into the intake, your saying thats all my problems solved!!!

Dodgy Dave

Original Poster:

810 posts

253 months

Thursday 8th April 2004
quotequote all
Its a 95 Peter
Uses the same block as any older mini so I can turn it into any type.
To fit SU's i think id need to remove ecu, throttle body and fuel tank. Not to sure what i would have to do about all the wires which would be left hanging but it can be done with out to much trouble.

Thought and asked about this before but was thinking forced induction!

Cheers