Peak Flow Happens When?
In your article Turbo'd for Torque
you state that "the
maximum fuel and air flows of the engine don’t
change! That’s right: the standard sized injectors, standard sized fuel pump, standard airflow meter, standard exhaust – they
can all remain." Don't the maximum fuel and air flows occur at peak torque, not peak power? If the peak torque is increased, the maximum fuel
and air flows will also
increase. Thanks for an
excellent magazine!
Prem Naicker
South Africa
Maximum fuel and air flows do occur at peak torque – but only per intake stroke. In absolute terms, the maximum fuel and air flows occur at
peak power.
What’s that Manifold?
I was just wondering what car the picture of the intake manifold is off in Boosting Injector Flow
Julian Sheriff
Australia
It’s a 1.6-litre Isuzu 4XE1 engine as fitted to the Japanese market Gemini
from 1990. Naturally aspirated and turbocharged versions were released.
Improving Engines?
Re Driving Emotion - Revisiting the V6
Commodore.
I have come to similar conclusions about
the latest Commodore. I
drive various samples for
work and had serious reservations about the original VZ, but recent samples are much improved - or at least raised from 'a step backwards' to ‘adequate but not
impressive’...Like your review, I have experienced better NHV and mid response
and about a 10 percent improvement in economy in cars
with similar odometer readings.
Paul Carberry
Australia
LPG Tech Help
I am a mechanic and am currently working on a vehicle that sounds identical to the one your editor
mentioned in his article referring to the issues faced by a mechanic that had to fit a LPG kit (supplied by the customer) to a turbocharged vehicle -
only for the customer to complain that it
doesn't perform as expected...Unfortunately, I didn't
have the smarts to quote the real cost in time it has
taken me to develop and
modify his LPG set-up to
perform as I would want. I
was looking for technical info relating to this topic in your site. Can you send me a link to a technical information
source relating converting
turbocharged engines to
run on LPG only without a major change in drivablity? Otherwise, in a few days I
can supply you with this information through trial and calculated risk.
Rodger Day
Australia
We don’t have any specific articles on the sort of info you’re after -
our most relevant LPG articles
are...
Getting Gas...,
Gas Works,
Hyper-Gas Hemi,
Mud Slinger and Gas Power!
Electric PS Search
I am trying to locate an electric power steering system like the one photographed in the article Modifying Electric Power Steering but without much success. I am located in Brisbane and the local import
wreckers don’t seem to be
able to help. May I ask where you obtained your
unit?
Peter Parianos
Australia
We obtained ours from the tip. We’re not sure which model it’s
from - it was a warranty replacement.
Waiting for Focus XR5
Just curious - are you gonna write up the
Ford Focus XR5
anytime soon? I'm looking
to get one and would like to hear your thoughts on it. Keep up the good
work.
Rajneil Sharan
Australia
Yes, the turbocharged XR5 looks like it
could be a great hot hatch package. We will
be pushing Ford for a press car to
evaluate!
What?
Re New Car Test - Nissan 350Z Track
My God. You compared a
Nissan 350Z to, err,
a Holden... As if they were somehow in the same
league. I pity
you.
Nick Buick
Australia
Certainly, they are cars from different categories but it’s a perfectly valid
real-world comparison. Many people would think the Zed would leave the
Holden/HSV w-a-y behind – but, as we’ve pointed out, that’s not the
case...
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