Magazines:  Real Estate Shopping: Adult Costumes  |  Kids Costumes  |  Car Books  |  Guitars |  Electronics
This Issue Archived Articles Blog About Us Contact Us
SEARCH


Tech Tips

More tech titbits to get you thinking!

By Michael Knowling

Click on pics to view larger images


Click for larger image

Adding a turbocharger to a factory atmo engine is a venture that’s getting harder and harder due to increasingly complex driveline control systems. Here’s a prime example – a turbocharged Mitsubishi Magna TH Sport auto (see Move Over Magna!). Having been converted to aftermarket programmable management there are no problems delivering the appropriate fuelling and spark timing to suit the new turbo system. The only problem is, the aftermarket ECU can’t interface with the auto transmission or the traction control system... Make sure you discuss all of these sorts of things with your trusted workshop before giving a project the go-ahead!

Click for larger image

Adding aero add-ons is a pastime of many car fans. Invariable, many of these fibreglass freaks will justify the add-on bits’n’pieces by theorising about improved downforce. Add a spoiler – front – or rear – and you’re guaranteed downforce, aren’t you? NO! Aerodynamics remains a black art where random changes are unlikely to yield favourable improvements. Check out Real World Spoiler Development for the story of our own aero testing.

Click for larger image

If you’ve squeezed in a monster exhaust beneath your car there’s a pretty good chance you’ll be hearing the odd under-floor clunk when cornering hard. That’s the pipework hitting the undercarriage. One way to reduce exhaust movement is to replace the existing rubber hangers with new poly-based items that are much stiffer. Most high-performance exhaust shops should have these in stock. Poly-based hangers might reduce exhaust movement by a few millimetres, but that might be enough.

Click for larger image

Most of us would know about under-bonnet heat undoing the good job of the intercooler on the plumbing route to the throttle body. The only solutions we’ve seen adopted involve exhaust-type insulation wrap or ceramic coatings – both being quite expensive. Another option is a wetsuit-like material that’s about 3mm thick and insulates at up to 260 degrees Celsius – we’re talking hi-temp oven mitts! For a detailed ‘how-to’ and installation results, see Insulating the Return

Click for larger image

When lowering or adding a body kit to your car, make sure you give more than a passing thought about ground clearance. If the car has long front and rear overhangs, this will limit how low you can realistically set the suspension or whether or not you can fit ‘ground effects’. Before committing any money, it’s a good idea stop the car half way up the steepest driveway you’re likely to encounter and check out how much clearance there is before something scrapes. And don’t forget to factor in a little bit of suspension compression.

Click for larger image

An external wastegate – why would you want one? Well, it’s normal to step up to an external ‘gate when your existing internal bypass is struggling to flow enough gas around the turbine. This is often identified by excess boost pressure at high loads. An external wastegate gives a larger bypass passage, thereby reducing the chance of over-boosting.

Click for larger image

Where appropriate, the OBDII port of your late-model car gives you access to valuable information about oxygen sensor voltage, throttle position, ignition timing and engine load. Begin reading our two-part series on OBDII data connection at Reading Your Car's Brain - Part 1

In some rare examples, earlier OBDI vehicles have had software written that allows similar info to be displayed on laptop or PDA. There are several US-based outlets of data logging software for the Mitsubishi Galant VR4 (from about 1990).

Click for larger image

If you’re trying to route a big exhaust or some new intercooler plumbing in the engine bay of your ride it’s possible that the factory oil filter is getting in the way. The solution – and it’s an easy and cheap one! – is to install a remote oil filter adapter kit. We’ve seen these kits sell on eBay for around AUD$100 including all necessary lines, fittings and hardware. A bargain!

Click for larger image

When sizing a fuel pump you should keep in mind the potential of using twin pumps in parallel. What’s the advantage? Well, a single high-capacity pump can cost a lot of money, whereas two conventional size pumps can be bought relatively cheaply. Note that running twin parallel pumps won’t increase fuel pressure but it will increase fuel flow – and that’s what you need for making big power.

Did you enjoy this article?

Please consider supporting AutoSpeed with a small contribution. More Info...


Share this Article: 

More of our most popular articles.
Under $20 and an hour for a welding trolley

DIY Tech Features - 26 November, 2013

Make your own welding trolley

Advice on how to get into freelance writing

Special Features - 27 July, 2010

Changing a Life

...but it never turned a wheel in anger

Special Features - 8 April, 2014

The fastest Mercedes of them all?

Turning the voltage switch into a standalone temperature or light switch

DIY Tech Features - 29 July, 2008

The eLabtronics Voltage Switch, Part 2

The electronics of diesel engine fuel systems

Technical Features - 29 January, 2007

Common Rail Diesel Engine Management, Part 2

A new low cost data logger - and how to use it on cars

DIY Tech Features - 7 July, 2009

Five Channel USB Data Logger, Part 2

A few cars to keep an eye out for

Special Features - 6 April, 2010

Collecting Japanese Cars

Making it easier to work on your car

DIY Tech Features - 12 June, 2012

The Spit

Setting up oxy acetylene gear

DIY Tech Features - 29 June, 2007

Beginners' Guide to Welding, Part 2

When not enough current is being produced

Technical Features - 14 July, 2009

Upgrading the Alternator

Copyright © 1996-2017 Web Publications Pty Limited. All Rights ReservedRSS|Privacy policy|Advertise
Consulting Services: Magento Experts|Technologies : Magento Extensions|ReadytoShip