Right,

Here goes for an update.

After changing the plugs and the new clutch being fitted we decided to crack on with an early morning mapping session on sat.

How early? The MAT sensor was reading 1 degree C at about 0700 hours!

Still, at least alowed us to do a bit of work on the cold start enrichments

We also re set the temp that the closed loop kicked in.

We took it out for a spin. Everything was going well running on the previous ignition map. This was the one with low advance figures but no det.

The sensible thing to do at this point would have been to map in some more advance to test the effects of the colder plugs but......

knowing that there was a chance off a rr run at lunch we decided to chase numbers and go for some more boost!

Actuator was adjusted and we went from 7 to 11 psi (176kpa).

The ignition map only needed the slightest tweek at a couple of high load/low rpm sites to have no det at 11psi so maybe the colder plugs were helping?

At this point we went for a huuuge (8 quid each) fry up breakfast and then headed for the rollers.

When we turned up at LPS there were a couple of Loti there, an Exige and an Esprit.

The Esprit was just having a run on the rollers. It was a citrine yellow/green L reg 300GT. Apperently something to do with a le-mans car and they only made 64? The last four pot turbo esprit. Had huge 315 tyres on the back.

Owner looked very chuffed when it made 298bhp with a bar of boost.

So we loaded our car on the rollers.

At this point i must confess to telling a small fib The engine in qustion is a S14 and not a 318is.






Here is a picture of the lump ready to go.



To cut a long story short, she made 296.5bhp on 11psi. Lotus owner who had been looking down his nose at a shonky old D reg BMW was very supprised

I thought it was running to rich so i backed some fuel off at the top end but it mad no difference to the figures so we left it rich.

Dyno graph and ignition map and fuel map will follow shortly.

Doug.