Hi Mate.
.
.
Sorry for
the thread highjack.
Again.
just to clear a few things up.
Now Starting with the following quotes, excuse my spelling
Three turbo's in one year?
£1500+ oh what a coincidence extra money for a decent ECU and MAP
Not at all,
all turbocharger units
second-hand pass ons from client upgrades, or just requiring a few repairs etc, so total costs well
under
£300.00 for 18 months of up to 1.4 bar, whos laughing the most
Now.
as I said before on OC, this was a project, not a show car.
.
, R&D nothing more
, nothing les, I am not into body work cosmetic bling, but true race enhancements.
Who cares about a bit of ignition anyway, its not important
umm, I think you might need to review your understanding
I see a joke.
.
£1500+ oh what a coincidence extra money for a decent ECU and MAP
so what is it you are trying to
say
:
the meagsquirt ecu is rubbish, map is completely
wrong, umm can you back this up with you extensive knowledge.
.
.
? please.
firstly the map was 1hr in the making.
okay having mapped the thing for the last 1
½ years you tend to get understanding
, what da engine requirements are, it was in pieces until the morning of the dyno, secondly, its not that bad,
does not DET, under heavy boost,
best of all it made 283 bhp on 4 wheel drive Celica two runs, within a few horses of each other, so please explain that one.
.
.its must be out by miles dont you think,
or is this merely your way in saying nice one, well done, thats not bad for a
£150 diy ecu
and self tuned
what makes it even more funny,
you based your judgement, with almost next to no information to hand, this explains much from what i can understand, what is the level or your understanding,
you build stuff, modified anything,
qjdynamics, exhaust, bit of body work bling, every built any proper race cars
back to the engine in question, it did make the power as claimed, i am not in the habit of bullsh*tting.
As for accuracy of the
dyno, speak to Janspeed Salisbury, maybe you know more about
their dynojet
, than them,
after all
its not as if they have much experience in this department.
.
built factory spec touring cars from the ground up, getting over 300 bhp from 2ltr na some 12 yrs
+ ago, what sort of achievements have you made.
.
.looks like you struggling to make any horsepower
lol
well in fact it pulled over 6000, but losing position signal on route, according to the datalog plot.
.
can post the log, see for yourself, thats if you can understand the telemetry data.
.
.
misfire did indeed cost some power, but with 100% duty
, increasing AFRs was probably for the best to cut spark
Torque to bhp cross over rpm is 5252 rpm, as you can see it made it past this point, so the reading of power to rollers is accurate enough for me, as well as many others who have used them that day and before.
.
as for duty cycle, i would not recommend to run more than 90% duty for a good service life from
injectors,
pushing boundary levels sometimes requires that extra distance.
I know many motor sport club racers,
that run close to the wind.
MS
megasquirt, works duty reading, by the amount of time it holds open injector transistor junction,
over each ignition cycle, as the time frame decreases from rpm increase, thus it calculates the figure of
101.3% duty.
Its basically 100%
.even my DL1
& LM1 display matching data, you never know
? maybe its all wrong
.
.LoL, which I very much doubt.
If you have problems in believing this, then have a look at this link, its a close up of the screen capture from ms logs.
http://i49.photobucket.com/albums/f290/ ... -duty1.jpg
having had a few problems with dizzy signal
, variable relutor setup, its not very reliable, being its an ac generator, its old and very crude, the TTE, and other like minded used optical dizzy setup, from my experience this seem the way, with wasted spark.
With this in place
, no further problems should be present, the dyno plot, looks messy, but thats expected from the above problems, the fact is it was making the power, if the 550cc injectors running 50 psi fuel rail pressure, and the afrs 12:1 its going to produce some amount of power from the fuel intake, do the maths see what I mean.
.
Only a short period of time spent that morning mapping, its not the best I have done, must admit, but, hay its power output more than makes up for it, if you have details of your comments,
, with descriptive remarks, I would be more than happy to receive either via pm, or maybe start another thread.
Engine health poor, smoker
been running 1 to 1.6 bar for almost a year
not bad for stock internals
.lol
yes after spitting out a head gasket this week, under 1.4 bar of use, I decided to strip engine down for full inspection
& service, the main reason why it smoked, was down to the bores being worn oval, 86.01mm
/ 86.10mm,
ring ends tend to reside in this area, thus causing a little smoke.
.
very little blow past, displayed from pistons,
, but then again the stock tol are pretty tight on piston to bore, probably why so many fail before hand.
Link to the pistons, as you can see they are all in one piece.
.
, probably luck that ignition table was accurately setup,
.
.lol
A few snaps of
the pistons from this engine afterwards, thats running a substandard ecu, with a poorly tuned map, that still produced 283 bhp on 4 wheel drive.
.ummm
thes have been clean for further inspection
as you can see they look pretty good form the experience.
.
as for the pistons going bang, well in-fact
mate
they are near as good as the day I got the engine, which sustained most of its det
& damage from burnt out valves using
stock ecu, with as fudging box,.
.
.
.
.
.
.
.
.
.
.
.
after a 18months of use from 1bar to 1.5 bar.
.
.under megasquirt control, they have not decade much further, is that luck, or understanding on my part.
.
as for power, speak to Jan speed Salisbury, maybe you know more, than them
lol after all they built factory spec touring cars, making the levels of tune seen around some places
look
, well flintstone
ish
i got 280 bhp flywheel from a stock ct26 a year ago, simply down to tune of engine and the way its mapped.
i don't mean to be offensive, rant over, but if you stoke the fire, then expect flames.
.
.in return
Merry Christmas.
.
DJ
