Supercharger install

Zitat von fuzzifikation;76827

There seems to be some guessing in the whole fat/lean matter.. Can you take the car to a testing shop, where they can measure the exhaust oxygen value at the exhaust tip? Then you'd know exactly, what's going on.

I just got my TÜV (MOT) and they check the CO and Oxygen values here.. so, you might have the same thing in your country?
That also would releave Firebird and John from having to guess so much... What do you think?

I did when I did the Dyno. up to 4000rpm the mix was at 12-13, from 4300rpm and up it's like 10,5.
I believe the best mix is 13,7 from what I've read on different tuning pages.

Zitat von fuzzifikation;76838

But that's excellent! John and Firebird should be able to give you nicely tuned chips with this (You did measure those values at steady state, right? you have to keep the engine speed constant for a while for the chips to do their work.. using the values from a power-dyno-run is not that good, because all the oxy-sensors need approx 0.5 seconds to deliver a good value).

I believe (and that's just a guess, here) that from about 4000rpm, the oxygen sensor values are ignored by our M70 engine DMEs. That might explain the higher mix.

This was at a normal dyno run, with a broadband lambda in the exhaust.

As from the +4000RPM I've been told the timing was advanced to see how that played out with my cams, and it did not work out too good.

I'm debating with my self if I should spend about 400 euros on a live logging system so that I can make a log based on day to day driving for further fine tuning.
I guess John will have to send me 2 more chips and then we are close, hope to get the first one now in early June.

Zitat von DickB;76843

I'll post it at a seperated thread(I don't want to do it on Egils thread...), it was only a remarck to him that it shouldn't be a problem to get his chargerproject working as he would like it.

Sounds good to keep the systems separate Dick.

I'm happy for you that you also have a working system now.

My target with the current setup is 400whp, but I have an option to get maybe 50whp more at my own risk.

Fuzzi.

I do not have the name of that system but it was mentioned to me by a tuner I approached to do the final tuning of my car.
there was two seperate systems. one just monitoring, and one with logging aswell.
think it logged A/F, Rpm and throttle possition.
I'll see what I can dig up and post it for you.

New update.

The engine is currently in bits.

After 3 map's with deterriorating result, leak checking, thorrough troubleshooting and setting up the the blow off valve to no avail the attention was turned to my Hartge camshafts.

A vale overlap appears to be the reason for my troubles an the decision was made to revert back to stock camshafts.

I started the demolission work yesterday and need to do some cleaning before the work continues.

New camshafts are on the way thanks to Gerry at Phoenix Motorsport.

The goal is to have the car up and running with an overspeed pully that should give me about 500hp on the crank in a week.

This gives me just over two weeks of test driving before the Dutch meeting in September.

Zitat von Timm;80535

I hope that goes well Egil. Looking forward to hearing the results....

Think this will be just fine as my car now will be stock, and then Johns kit has been proven to work.

Camshafts arrived today so now I've got most of what I need in hand.
Need to get a few small things but that should be here by the weekend.

Head covers will be re-painted as there were some rust spots on them.
The intakes are cleaned up and painted black while they are off.
Will replace a few other minor items while I have everything off, fuel hoses ect.

degreased the engine and gave it a proper cleaning today, bet that engine haven't been this clean for more than 15 years.

Left to dry and will pull the head covers off and start with the camshafts tomorrow.
If all goes well I should be up and running sometime during the weekend.

Engine is now opened and the camshaft area looked like new.
no loose banjo bolts or burned oil... looked perfect.

One problem with this job is that I realize that this was not a project that should have been planned to take 1-2 weeks.
There are so many little tings I want to do now that everything is easy accessible.
All those little things that should have been cleaned and painted, rusty bolts that should have been replaced, covers in need of blasting and paint.

The list of things I'm doing grows every day, but I'm now at the stage where I need to put time and cost into the matter.
Wish I had 4-6 months to do this job.... then my engine compartment would look like new.

Things stopped today when we realized we needed a tool to pull off the seat for the rotors inside the distributor cap, this is fixed to the front end of the camshafts and has to come off.
will get the tool tomorrow.

Sent my intakes and valve covers to be blasted and they will be painted when they return in a few days.
Valve coves in silver and intakes in black.

All these cosmetic things have made this project stretch out in time so I'm now looking at completion sometime next week, all depending on when I get the parts back from blasting.

Holland is still 3 weeks away so I think I will make it unless something unforeseen and devastating happens.

Oh and Dick.... I do not know what filter I have, its an open one under my right headlamp.
And a race is out of the question.... even though the outcome would be interesting, I think you may have the highest power output, but I may have a gearing advantage with my 3.45 diff.
Really doesn't matter, both cars are silly fast after all.

Zitat von 8Harry8;80570

Egil



A special tool? I'm curious, please take a photo...

The intakes get blasted with what? Do you remember Tom Wuffers wine rack?

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The tool.. not sure what this is called in English.
Should be standard in any garage.... but not mine.... yet




The parts are blasted with something soft, perhaps limestone powder, or something similar to flour.

I handed this in to a pro. and told him my concerns for the engine and the fate of engines like Wuffers.
Where he simply replied that someone apparently did a poor job cleaning up the parts after blasting.
So I'm confident in his skills.

Zitat von NickF;80569

I'm sure you've already done them but if not change your fuel lines while you're at it. Much easier with the intakes/valve covers off.

Have 3m of fuel hose on the shelf, so that will be done.
Though my hoses looked in good shape.
Will also do the vacuum system.

We checked the timing and it's actually off by allmost a tooth, guess the timing chain has streached a bit over time.
cylinders 1-6 was further out than 7-12.

My engine has 147.000km on the clock so I guess getting the timing adjusted would be a good idea for anyone with a V12 with more than 150.000km on it.