Drag racing times - parts/work to modify

[JShadzi at aol.com]

Zsolt, I definitely second all that Jim said earlier.

And I'll add..

>I am sure I am not the only one who is really interested in your
>developing this engine. So speaking of production parts/tweaked parts,
>say I would like to modify my engine in my 885ktq similarly to what you
>have done;
>
>1, What exactly is available to buy and bolt on? (Either Audi/VW or
>other products)

Well, as you can see you can do a lot with a stock motor, the best bolt on intake is likely with 4kq with the dual stage TB, this TB flows similar air to a 20v turbo TB, you don't need to do what I did to get a good flowing intake.  The stock exh manifold or 2-piece will probably get you to about 275hp pushing it with the right turbo, of course you can keep making more power put the restriction starts diminishing any gains above this level, a header will make power much better and more efficiently.  To be honest, about the only things still stock in my engine compartment are the block and head, everything else is either custom or a modified factory part, just take a look at some of the pics on my site.  As far as management goes, you can use any of the factory ignition systems, but those I believe were limiting my power the most, you can't make power w/o ignition advance and retard control, and the MAC systems probably do this best, but they're not w/o their problems too, it all comes down to being able to fine tune engine control parameters to the intended application.  When you're pushing a 2.2 I5 to past 150hp/l, "generic" maps from factory setups don't really cut it.

Of course the 034efi system is ready to go for you, as are fuel rails and other misc parts to make it work, as are turbo components and soon, headers.

>2, What has to be custom built to make it fit/work, and what are needed
>to build them?

Well, every application is different, so intake plumbing, IC's, wiring all will be "custom" to your application, but these are hardly rocket science, like Jim says, if you take satisfaction in a tidy and reliable wiring harness, or efficiently run hoses, etc, all this stuff is part of the satisfaction.

Get rid of the CIS first off, and everything becomes easier and more sucessful.

>3, What programming is needed to have it run right, and what is required
>to do it?

With the 034efi system, you build the harness and get it installed on your motor, I provide a fuel map to get you started and tuning manuals and aids, from there try, observe and learn, if its for you you'll think its fun =)  You just need any cheapo laptop to interface with the ECU.

>4, What do you estimate it would cost to buy/build the parts?

Well, its tough to say, but lets see, assuming you have a motor in there, EFI with ignition programmability will cost about $1500 once you're got injectors, FPR's, etc, could be more, or less depending on if you go Mega Squirt (you get a bag of electronic parts you have to solder together), plumbing, etc.  From there I'd say if you're handy and can fabricate, maybe another grand or two to get a better IC in there, plumbing, better radiator, etc.

>5, How long would it take from stock form to put it all together?

Gathering parts and planning are the most key factors to this, but realistically I'd say give yourself 6mo to a year to slowly build the car up and add one upgrade at a time.  The last thing you want to be doing is testing 5 new part-systems at once, take it slow and smart.

>Seriously, perhaps not to the point where you took your car, but I would
>be interested to make those mods to my car as long as it remains
>reliably derivable.

Read through my site carefully, read the logic behind the different upgrades I've performed, i try to give insight into why I do these upgrades, and I've taken a methodical approach at modifying different performace factors such as fueling first, then intake flow, then turbo selection, then better intercooling, now ignition and full sequential injection, next I'll be testing a new motor with better flow, closer to 20v flow levels, etc.

Anyway, feel free to shoot any q's to me, I'm always willing to help.

Javad
80tq.com