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February '04 NEWS
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22-02-04
- 11pm - We have a running sequential system!!! Although very very
basic (ie. basically no control over the valve actuation at the
moment) it's working just as we expected it would.
Low
down, the small turbo spools up QUICKLY to about 0.4 bar, at which
point the actuator on the large turbo valve sees enough boost to
begin to open that valve. The opening of the valve stops the boost
raising, and slightly lowers it while the big turbo spools to the
same pressure. At that point, both turbos continue to push on to the
wastegate set 0.9 bar. Beautiful!
As
it's so uncontrolled, actuation and boost itself is somewhat spiky,
but here's a video and some photos of where we're at as of tonight!
Video
of very early sequential operation, 3.2mb
Current
engine bay shot. You'll notice some additions... ;)
The
big turbo valve's actuator!
The
2nd blowoff valve, on the IC piping inside the front bar.
Another
shot of the new actuator and blowoff valve.
More
news once we get some electronic boost control!!! (Or something else
happens, hah)
Take care!
Jason
16-02-04
- 7:30pm - Not far off now... The 2 APEXi Blowoff Valves are on now,
yay.
I
finally found a 2nd HKS boost gauge, which arrived today, too! It's
identical to the one in the car already, and will be very useful in
tuning the sequential system. There's an AVC-R on its way (Thanks
Fabio!), and another being sourced in Japan for me now (should be
here on the 29th Feb, yay!)
Shortly
we need to install the actuator on the big turbo valve, the boost
gauge, and then whatever boost controllers we have on hand at the
time. It's going to be a very busy couple of months, as there's also
a big MR2 rebuild happening at the same time, too... Hopefully we
can get a lot of this stuff finished and onto tuning the system as
soon as possible!
Sorry
for the small update, but not too much to add for now...
Take
it easy!
Jason
10-02-04
- 7pm - Finally, the video! I knew you all wanted to see the car
finally driving after all this time, so I concentrated on quickly
editing the very first video of the car driving once we moved it out
of the garage and cleaned it (you all know how dirty it was!).
I
must stress, however, that the view of the engine bay, and the work
on the upgrade, was far, FAR from complete at this time, and it is
not going to end up like this. The welds are unground, there's no
blowoff valves, the turbo valves are simply opened full time, so the
car is running in full synchronous mode, meaning lots of lag. Oh,
and it's running only 0.8 bar (at the top end of the rev range, haha)
We're still waiting on parts to complete the sequential side of
things, and that's when I'm sure we can get some real good footage
going, to actually show what this turbo system can do. :)
The
car is still running as it was that day, however we've plumbed in a
blowoff valve (stock one temporarily), which is helping somewhat to
stop turbo reversion, and we've added the valve to stop air
reversing back through the big turbo, too.
Anyway,
I know you've been waiting to see it... here you go.
Sorry
about the crappy editing, I was just trying to get it done ASAP! You
can blame Tris for the amazing photography. ;)
MezDrive.mpg
(~40mb)
Jason
9-02-04
- 6:30pm - Well, there's lots to be said, for sure.
For
a start, sorry to all of you who've been watching the site wondering
what's been happening with the car and the project!
I've
been slack with the updates, mainly because I had to somewhat
redesign the news section of the site, as it was getting too large
for one page. After a little stuffing around wondering how to best
do it, I've settled on the "Prev Month Next Month" style,
so you can go back and forth between the months at will, with
quicker page loading times.
As
for the car... it's still running beautifully on Sync'd turbos.
We've been waiting for Electronic Boost Controllers, as our supplier
has been somewhat hard to get a hold of recently. This is a real
sore point, as 3 EBC's are practically all I need to start and
finish the sequential side of things and tuning.
I
have a couple of BIG thankyous to put out...
Firstly
Fabio for the injectors! Even though they aren't hitting the car
till I've got hold of an AEM and the rest of the fuel system, having
the 1000cc Injectors already here is great!
Long
Tran, for sending me a stock turbo system actuator he freed up from
his big single upgrade. Thanks so much buddy, you've saved us lots
of time and stuffing around trying to get hold of a 2nd actuator
locally!
Brad
(With the Series 6 RX-7) for selling me the 2 APEXi Blowoff Valves
which are shortly going onto the car, for an awesome price. :)
Thanks mate!
It's
great to see so many people who are actively interested in seeing
our system work out, even going as far as actually sending us parts
we're trying to source... for all of you, thanks so much, we hope
the car will do us all proud upon completion :)
I
know I promised you videos! I still have them, and I've been trying
to get them ready for distribution. Unfortunately I've not quite
finished editing or compressing them yet, but I'm going to make it a
priority once I can come across a DECENT video editing tool (Which
doesn't crash!) If you have any suggestions, PLEASE tell me :)
The
welder has been broken for a week now, Tris got the call today to
say it's now fixed, yay... so the past week has been more R&R
time than car work.
Stuff
to do...
I
have the 2 blowoff valves to put on soon....
The
actuator needs to be installed on the big turbo's exhaust valve so
we can then set up the sequential system.
Still
need 3 electronic boost controllers to control the wastegate and
both of the exhaust valve actuators. Don't have them, really need
them... dammit
Still
have to get a 60mm 2.5 Bar Black Faced HKS Boost Gauge with peak
hold, identical to the one in the car already. This isn't necessary
but will REALLY help us tune the car with boost readings from both
turbos.
Know
someone with 3 identical boost controllers they want to sell? (Must
be able to hold 2.5bar and have good gain control)
How
about the boost gauge?
Please
let me know if you do! ;)
There'll
be more updates more often now... sorry about the little lull.
Oh,
and the videos will be posted soon!
Take care all,
Jason
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