Is this grounding mod ok?

[Sibi]

Guys I have read about this grounding mod and I did it to my car, but did I do it correct?I couldn't reach the alternator so I put three wires on the engine.Please take a look at the photos and post any suggestions,thank you. (click on thumbnails for larger images)

p.s: I feel that the car has better throttle response after the mod.

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[Psydotek]

Hmm, what kind of car are we looking at here?

[Sibi]

It's a daihatsu sirion...yesterday night was the first time I drove the car for a lot time with the mod.I was very surprised to find out that this mod is working! It really does some job!! The car throttle response is much better,no more lag, and also it seems to be more alive after 4500-5000rpm! Unbelievable!
So I'm assuming that I did good grounding,but what do u think? Can I do something more/better??

[jac04]

Originally Posted by Sibi

It's a daihatsu sirion...

1.3 litres of pure fury, dispensing almost 86 pavement rippling horsepower. Maybe someone should start NADSOC?

[Sibi]

86? oh no my friend,I think u r a bit wrong...It's an 1,3litre 102ps 4 wheel drive little car and that's all I've got... any help with the ground mod???

[Psydotek]

Well, as long as you're feeling a difference that's all that should matter. Smoother enging rpms and better throttle response are usually what you'll get out of grounding wires. I can't see the pics at the moment (they're not working or something), but another thing to do is to scrape away the paint on the chassis where the terminals make contact for a better connection.

[Handsdown]

basically you want to ground the engine to the chassis better. the alternator is an electrical backbone, but it's not the only point that should be grounded.

why, may i ask, are you asking a subaru technical forum?

[Handsdown]

Originally Posted by Some British Guy

Daihatsu Sirion F-Speed
by Nigel Burton
Sirion
Innovative: The Sirion F-Speed is different but there are still some wrinkles to be ironed out

IT'S ALWAYS been a difficult job assessing Daihatsus.

During the late Eighties, when every other manufacturer was shoe-horning large capacity engines into small capacity cars and calling them hot-hatches, Daihatsu fitted a turbocharger to a small engine and called it a GT-ti.

Then, a couple of years later, it fitted chromed alloys and a body kit to a small-bore 4x4 when everyone assumed off-roaders were only for the seriously rich. The Sportrak sold in the thousands and now every manufacturer has a similar vehicle in its range.

But the latest daffy Daihatsu idea has to be the strangest of all. Faced with the need to jazz up a worthy but somewhat dull vehicle, it has fitted a Formula One-style steering wheel gear-change to a small-capacity supermini.

The Sirion F-Speed also gets a dubious bodykit, that does nothing to hide the overweight proportions, and some nice-looking alloy wheels.

But the big news is that gear-change.

If you're feeling lazy, you can just shift into "drive" and treat the F-Speed like any other automatic. Progress is smooth and relaxing.

It is far more fun, however, to switch over to the semi-automatic option and switch gears by pressing buttons on the chunky wheel, just like Michael Schumacher. The system responds swiftly and gives you far more control over when to change gear and when to hang on to the current ratio (like overtaking, for instance).

There are some wrinkles still to be ironed out, however.

The biggest has to be the decision to place the shift switches on the steering wheel, rather than behind it, as is the current F1 practice. It makes changing gear when the wheel is being turned near impossible.

Of course, any decent driver would never be chargingup the cog box at the same time as steering around something, but in an emergency it could be necessary.

Daihatsu is part owned by Toyota and the Sirion has the excellent 1.3-litre all-alloy powerplant used by the award-winning Toyota Yaris.

Daihatsu designed the engine even though Toyota got it first. It is powerful, smooth, refined and quiet at speed, a state-of-the-art powerplant that goes a long way to making the Sirion a very nice little car indeed.

But for all the undoubted technology behind the scenes the Sirion has more in common with Japanese cars of a decade ago, when plastics were strong but brittle and horrible to look at and doors shut with a tinny "clang" rather than a meaty "thunk".

The Sirion is undoubtedly well made - its reliability record is among the finest in the industry - but the parts aren't particularly pleasant.

What's more, that complex gearbox with all its electronics adds an uncomfortable amount of money to the price.

26/01/02

wow, do you have shift buttons?


EDIT: actually, nice looking car you have there.


okay, i had my fun.

[Sibi]

Wow,these pics are huge,I have to scrool to read the thread,please resize ore remove them,besides this is not my car,this is the new 2005 sirion that has 86ps and doesn't have 4wd. The previous sirion that I have is the one with 102ps and 4wd. I decided not to buy the shift button version beacause it's slower in acceleration and max speed than the standard version. The reasons I'm asking questions in a subaru techical forum are 1) I found lots of info about the grounding mod in this forum, many people here have done it and I need some advise and 2) I haven't been able to find a daihatsu techical forum!

As days pass and I drive my car more the grounding mod impresses me even more! There is definitely a noticeable performance improvement, I suggest to everyone to try it, I spent 7$ and 15 minutes!!

And by the way, this is the little beast I'm talking about!!! (click on thumbnail for larger image)

[Uncle Scotty]

Sibi....nice little rig ya got there.......now----we need to fit a turbo to it

[Sibi]

I'm thinking of it,but not now,maybe in 2-3 years time,I only have it 8 months! In Japan this car besides the 1300cc 102ps engine comes also with a 713cc 120ps turbo engine !!! Unbelieavable! Too bad they didn't import this version in Greece...

[2phless]

You need to run those wires around the perimeter of the engine bay instead of over the motor. It's not much of a safety issue, but engines get hot and wires are covered in plastic. Being a ground it shouldn't cause any issues but being a ground run right over your positive battery terminal might become one.

Just run them short distances, say a couple from the negative terminal to the chassis, and one or two to the motor, but just near the battery. Then on the other side of the motor, run one or two just from the chassis to the motor. Make sure to get one ground from the engine to the firewall panel. Find your ECU, say in the passenger kick panel or where-ever they put it, and add a ground from it to the body. (unless it's bolted directly to the body in which case it's probably already grounded well.)

Neatness is more important than just looks. It's easier to work around, it's less likely to get damaged. It makes troubleshooting easier later on. The list goes on.

Good to hear it made a positive difference.

[VWGrk1]

Ya sou, file. Oraio amaxi.

For Greece, 100 hp is alot relative to everything else in the market.

Last time I visited Greece, I had rented a 60hp Citroen Saxo. Slow as hell to me, but average to everybody else.

[Sibi]

2phless--> Thanks 4 the info.I know that this isn't a tidy install,but I did it temporarily,just to test if the mod works. At least I was careful during the installation and I put the grounding wires in such position that they cannot come in contact with the engine,the only come in contact with plastic parts,so there is no danger.
Today I bought some more wire in order to make more groundings an a tidier install. I'll post new photos when it will be ready!

VWGrk1--> Gia xara file! Efxaristw, etsi einai opos ta les! Ante kateva gia diakopes exei oreo kairo edw!