GB: schrick cams and valve train parts

[alex]

2000 euro based on the listed prices he gave for the two individually. sick setup if you can afford it.

It's rather amazing how you are too lazy to convert euro into USD, yet you have no problem motivating yourself to answer questions that you should not be answering. This question was for John. Thank you.

[Snowmann]

lmao thats awesome, ITBs arent DSP legal are they????

[maxx-automotive]

right now we use a conversion rate of $1.25=1 euro, although I see
the $ just fell again, it has been as high as 1.30 in the last 2 years.

so the alpha N shipped would cost 798 euro = $997.50.
(it is shown here: http://john.gmstech.de/e30airbox/ankit1.jpg next
to an airbox setup for an S14)

http://john.gmstech.de/e30airbox/ankit1.jpg

I was mistaken on the Dbilas, its 1454 euro = $1817
ITBs are expensive.

John

[DrMcDave]

right now we use a conversion rate of $1.25=1 euro, although I see
the $ just fell again, it has been as high as 1.30 in the last 2 years.

so the alpha N shipped would cost 798 euro = $997.50.
(it is shown here: http://john.gmstech.de/e30airbox/ankit1.jpg next
to an airbox setup for an S14)

http://john.gmstech.de/e30airbox/ankit1.jpg

I was mistaken on the Dbilas, its 1454 euro = $1817
ITBs are expensive.

John

still a good price on ITB's.

[matt]

still a good price on ITB's.

Not for what you get from them, except braggin rights I suppose.

Matt

[mspiegle]

Thanks for the explanation John. Does the Alpha/N unit fake AFM voltages to the ECU or does it control the injectors directly?

Yes, Maxx alpha N works for the M20, M30, S14, S38 (3.5l), S38 (3.6l),
M88 (3.5l) and also have it running on an M50 with Dbilas ITBs and
carbon airbox, the same airbox/ITB setup will also work on a US S50/2
motor.

HOWEVER -- unless you remove the stock intake manifold and go with
individual throttle bodies, the gains from alpha N on a stock motor
are not so large.

the gains are larger on ITB setups, because having an AFM in front of
an ITB setup is similar to putting a single throttle body in front and
causes a flow restriction and reduction in throttle response, so deletion
of AFM and replacement with alpha N makes more sense.

If you run different cams, then the flexibility of the alpha N is nice
to have. Because you can just hookup your laptop and tune on the
fly (while the engine is running) -- changes take place immediately.
It is very simple procedure.
I often tune alpha N setups on the street, but you should have a
wide band lambda guage installed so that you can accurately measure
AFR. see innovate motorsports or www.wbo2.com e.g.

once you have that sort of setup installed, then you can think about
playing with intake runner sizes (for the ITB) and plenum volume/shape
to make a carbon plenum (known as an "airbox" in europe), this
serves as a cold airfeed from the front bumper, the carbon is an
excellent heat shield and keeps the air cooler, the increased plenum volume increases efficiency and the intake runners can be tuned for
torque/power or a combination. The larger the cam, the more
this sort of tuning pays off, and larger displacements accept larger
cams more readily, as long as the top end can breath. Its all a system.

John

[alex]

lmao thats awesome, ITBs arent DSP legal are they????

They are.

[maxx-automotive]

Not for what you get from them, except braggin rights I suppose.

Matt

Hello,
There is no question that ITBs provide real gains in power and
throttle response, otherwise they wouldnt be so common on sport
motors. Both the normal intake manifold and the single TB contribute
to power loss. If this were not important, manufacturers would not
look for new ways to eliminate throttles altogether --- hence
the reason for BMWs variable valve lift technology or electromechanical
valve actuation (cam less engine). Normally aspirated engines are
particularly tough, as advancements come in steps and the total
system is what counts. Nevertheless, with the right hardware on
4V / cylinder heads, power per liter in the range of 130 hp / l
are possible and often achieved. If you just bolt something on
but dont adress other components in system, it is to be expected that
gains may not be as high as possible. ITBs are probably too
expensive for most people to just bolt on and do nothing else
to the motor; for the the guy wanting building up an engine from
scratch it is definately something to consider (budget and class
rules permitting).

John

[maxx-automotive]

Thanks for the explanation John. Does the Alpha/N unit fake AFM voltages to the ECU or does it control the injectors directly?

Hi Michael, it does not "fake" AFM voltages in the sense that it
intercepts or post modifies the signal from another device,
what it does is synthesize electronically the AFM signal and
provide that to the stock motronic.
The signal is synthesized from values entered in
a 16x16 table (also called a map), x-axis corresponds to rpm
and y-axis to TPS (throttle position). The Z-axis is the load output
for each rpm and TPS site, which in effect sets the fueling.
From load the motronic computes fueling and it is compensated via
a "lambda trim" map on chip. But it is also possible to set the trim map flat
(no adjustment) and do it all within the alpha N unit.

The site positions are user adjustable,
and allow clustering of sites around specific problem/difficult to
tune areas a motor might have.

In addition to the base map, there are tables for ICV (idle control valve)
(in an ITB setup), additional temperature compensation, and its
own onboard O2 PID controller with user adjustable PID parameters
(for the case where you dont use motronic O2 control).
It also has on board logging and can display and log wideband O2 data.
3 shift lights with user programmable rpm points are also supported
(user just needs to add LEDs).

John

[PiercedE30]

Maxx:
Do you have any, or possibly be able to get, an intake cam for a non-vanos m50 with somewhere around 254 duration and 10.4 lift?

[maxx-automotive]

sure M50 motor (until 9/1992):

0261 E1 561 - 00 10.4 lift 256 duration 106 peak timing
0261 A1 441 - 00 9.5 lift 244 duration 106 peak timing

both cams are $460 each.

John

[PiercedE30]

When does this GB end and when do I need to place my order? Etc, ETC, Etc..

[PiercedE30]

nevermind, email sent

[maxx-automotive]

if interested in parts, you have to tell me via email so I have your name on the list.
by end may. then we need all payments before we can
place the orders.

John

[DrMcDave]

is alpha N able to control spark? It doesn't sound like it but i figured i'd ask.