Super Efficient Squirter
I read “Cycling the Squirt” (Cycling the Squirt)
and consider it a good article highlighting an effective product. However, I was
a bit surprised that in addition to triggering the Auto Timer by means of a
manual switch or a boost pressure switch (as was noted in the article), using it
or recommending its use with the Intelligent Intercooler Water Spray (Intelligent Intercooler Water Spray - Part 1)
module was not noted.
You’re right - an extremely effective
result could be achieved by combining the Intelligent Intercooler Water Spray
and the Auto Timer kit (to cycle water spray operation). However, in the context
of the article, the Auto Timer was being used as part of a low(er) cost
alternative to the Intelligent Intercooler Water Spray.
Re the Response letter (Response)
from Alice de Vos about donut LPG tanks... Would you mind passing on my email
address? I've just bought a donut tank and will be fitting it into my Range
Rover very shortly. I'd be happy to pass on some pix to her once it is done.
Details passed on.
I'm the proud owner for a 2003 Subaru WRX. While I'm aware that it is no Evo
beater or supercar, it is a pretty quick car and lots of fun for the money.
Having driven a mate’s R32 Skyline GT-R, my annoyance with the WRX is its
front-wheel-drive bias. The driveline seems backwards compared to the Skyline -
the WRX having an emphasis on front drive, while the Skyline is essentially rear
drive with front wheel assist. After reading many reviews of the Impreza STi I
can see the benefits of installing a controllable torque split – although, I
believe my daily preference would be as far rearward as possible! Has anyone
ever transplanted a STi centre diff (and torque split control) into a WRX? Is
there any way to do this as an alternative to buying a new STi?
Your WRX can be made to
handle exceptionally well with traditional suspension mods – see MY03 With Poise.
We have not heard of anyone installing a variable centre diff to a WRX - but
perhaps some readers can share some related information? Note that you can buy a
stiffer viscous coupling (see Viscous Coupling Variations), but
this will likely make the car even more FWD-like...
Another Ram-Air Revelation
Your article on ram-air intakes (Ram-Air Revelations)
talks in inches of water. To put it in numbers that are useful to the rest of
us, the Kawasaki ZX-12R motorcycle is
fitted with ram-air. Without it,
Kawasaki says the engine produces
178ps (131kW). With it, the engine makes 190ps (140kW) - an increase of about
Note that this increase is stated to be a "maximum" - presumably meaning at
the bike's maximum speed of about 300 km/h. So again, presumably, a reasonably
well-engineered ram-air system would be worth about a 2.25 percent power
increase at 100 km/h. Other motorcycle manufacturers that have fitted ram-air
have quoted power increases of a similar order - up to about 10 percent
Interesting stuff. Harder to quantify
is the improved throttle response and, we imagine, slightly improved fuel
Steel Case Qs
Can you guys point me in the right direction to find a bell housing to adapt
a small block Chrysler 360ci to a ‘steel case’ 4-speed Toyota Celica gearbox?
And how strong are the 4 speed
Toyota boxes? Can I get any internal
upgrades for them?
Dellow Automotive (+618 29774 4419)
should be able to provide you with the answers you need.
Hey guys. I've read your 2004 Engine Epic - Subaru Engines article (2004 Engine Epic - Subaru Engines)
1000 times wishing I could get my hands on a Subaru EN07. Do you have any
suggestions of where I could get one?
We haven’t seen one for a while, but
we suggest ringing around the major Japanese engine importers. Alternatively,
you can buy a complete Subaru Rex with the earlier EN05 (550cc) supercharged
engine for AUD$3000 – we have an article on this car scheduled very soon. The
vehicle is being offered for sale through iprimus.com.au
In your Supa Charging Sigma article (Supa Charging Sigma)
it says that you can buy a brand new 3.8 Buick supercharged engine for new for
only $3750 - according to Joe. I was wondering if you know where this could be
Yes, that does seem like a bargain
doesn’t it?! We no longer have a contact for the owner but maybe some readers can
reveal some cheap outlets...
Carby AFR Tuning
Can you tell me if a 10 LED air/fuel mixture meter kit is suitable for use
with carb'd engines? I have a 4-barrel Carter on a Chevy 350 that I need to
calibrate cheaply. I have a one wire O2 sensor installed in the exhaust
collector already. Can I use the kit to measure idle, part throttle, WOT
conditions so that I might adjust the carb for the suitable mix?
Yes, the air-fuel ratio meter can be
used on an engine using a carby – so long as it runs unleaded fuel. Note that
these meters should be used as a tuning guide only. A wide-band
temperature-compensated oxygen sensor is necessary for accurate AFR tuning.
More on Aftermarket Traction
I just read your aftermarket traction control article (Aftermarket Traction Control)...
You only mention one supplier of this type of upgrade and I was disappointed to
learn that its main method of control was through engine throttling and lacked
any type of braking control. I loved the price though - I was thinking it had to
be 5+ grand easily...
It's been 4 years since that article and I was wondering if you know of any
other companies that have a complete stability and traction control system - ala
GM or Mercedes?
David Piel Jr
The Racelogic system we covered
reduces engine power by cutting fuel or spark – not by closing the throttle.
Traction control is now available on several aftermarket management systems and
MoTeC has electronic throttle control available on their latest system
- but it cannot yet be interfaced with traction control. We do not know of any
aftermarket suppliers of stability control systems.
Daihatsu Parts Mission
I have been an avid subscriber to your site and thank you for the quality of
articles being published. I wish to seek your opinion. I am currently awaiting
an order from an aftermarket supplier for a Daihatsu camshaft. Unfortunately,
the 4 - 6 week delivery time is now in its 9th week - with no conclusion in
Could you please point me in the right direction of someone who could help
with my Daihatsu engine hardware – camshaft especially?
Adrian Hup Chye Oon
A popular high-performance parts
supplier for Daihatsus is Sydney’s MRT (Middleton Rally Team). Check out
their website at www.mrtrally.com.au
I was hoping you could steer me to a 1998 article in AutoSpeed on the testing
of ULX-110 oil. I read your article on Uniglide (Testing Uniglide)
and can see you guys tell it how it is! I am currently using Castrol R 0-40W oil
and was curious if there is any truth in ULX-110 claims?
Our article testing ULX-110 was withdrawn quite some time ago. We suggest, as always, that you ask if the supplier
will provide a money-back guarantee.
Sound Stopping Articles?
I am wondering if you have run any articles on sound-proofing a car? I did a
search on your website but didn't find anything. If you haven't done an article
on such a topic, it might be a good idea to do so - not only for road noise but
for sound systems as well. For instance, I have speakers in my doors (not a
factory position) and want to maximise sound quality - but the reverberation
inside the door doesn't help.
We have done an article on installing
sound insulation (see Fitting Sound Insulation),
but it is a topic we plan to explore further in future articles.
Exhaust Butterfly Details
I was reading your article on the vacuum activated exhaust valve (Butterfly Effect)
and was wondering if I could get some additional info on it? I would especially
like some information on its dimensions. I’m looking to employ a 4 inch valve
about 3 feet or 1 metre away from the turbo on my car. Would this be too close
to the turbo as far as heat is concerned? I have a full exhaust on my car now
and want to make a separate split design for "race mode". My plan is to run a
separate exhaust but integrated to the existing system. The dimensions of the
valve are critical.
Further details can be obtained
through Active Exhaust Systems Australia (firstname.lastname@example.org) and Hyperflow
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