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Direct Hits?
Posted: Sat Jun 02, 2007 1:07 pm
by Kitika
Has anyone ever tried these on there motor before? I was wondering if they'd actually work in getting a little bit more power out of the little 1.3.
www.directhits.com
www.roadlessgear.com/page/RGL/PROD/E/DH100
Theres a lot of testimonals and test from american 4wd mags and even the government of mexico!
I do alot of mud and water work i was just wondering if anyones used these direct hit capacitors in those type of terrains.
Posted: Sat Jun 02, 2007 1:12 pm
by Trav83yo
looks promising i wonder if there is any oz distrubutors?
Posted: Sat Jun 02, 2007 1:24 pm
by Kitika
Yeah i'm wondering the same thing. I havent heard of them here before tho. Thats why i'm a bit skeptical
Posted: Sat Jun 02, 2007 1:41 pm
by Squik
Hmmm... methinks a product review is in order
Will contact them Monday
Posted: Sat Jun 02, 2007 1:54 pm
by nicbeer
Seem ok from here
http://www.directhits.com/Article.pdf
not sure if worth the $$ but as it would take years to earn the $$ back i would think for econonmy
Posted: Sat Jun 02, 2007 2:01 pm
by mistaboz
Bear in mind that they tested it on a vehicle that had 170kw and it made an increase of 6.8kw.
Now remember the fact most suzuki's getting around have a 1.3 or 1.6 with as much horse power as a push bike the gains will probabaly be about 1-2 kw max...
I'm happy to be corrected.
Paul..
Posted: Sat Jun 02, 2007 2:02 pm
by Kitika
The way i was thinking was to increase the fuel going into the engine and then having the extra spark help it go BANG. Altho it'd only be able a marginal increase in fuel cos of the amount of air would be the same.
Posted: Sat Jun 02, 2007 2:05 pm
by Kitika
Thats a Great idea Squik!!! I'd be very interested in the results
direct hits
Posted: Sat Jun 02, 2007 2:17 pm
by want33s
The idea sounds ok but I would spend the US$155 on an MSD box instead. I have bought a few for various cars from Ebay.com (USA) 2nd hand, All working, all cheap. There is nothing like super high voltage ignition. The engine starts easier, idles smoother and has more power and generally better fuel economy. Best one for a Suzi would be MSD 6 Offroad #6470
www.msdignition.com
http://cgi.ebay.com/ebaymotors/MSD-IGNI ... enameZWDVW
Posted: Sat Jun 02, 2007 3:07 pm
by Kitika
I've never upgraded a coil but i've been told that the increase isnt that high in the voltage/amperage department.
Posted: Sun Jun 03, 2007 1:18 pm
by flyinwall
for a coil change the GT40 coils are a good option i have used them on various cars in the past and i have found them to be quite good
Posted: Mon Jun 04, 2007 10:51 pm
by Drew
these things are nothing more than an extra gap for the spark to jump therefore increasing coil output.(extra load on it too)
in the old days bushies would use a button to create the gap using old copper leads on a cylinder burning oil to stop the sparkplug fouling.
rough but got the job done.
don't bother with this sort of thing , waste of time & money.
msd is another thing alltogether ,it works .
Posted: Mon Jun 04, 2007 11:58 pm
by Kitika
Alright so as i decifer the MSD info it says it delivers a multitude of sparks every revolution between idle and 3000rpm? Instead of the normal 1 every revolution from a normal coil? That sounds like a great way to burn off all that fuel vapour
Posted: Tue Jun 05, 2007 1:08 am
by zuku26
Posted: Tue Jun 05, 2007 7:57 am
by Gwagensteve
This ignition stuff cracks me up- how much better performance do you think you are going to get via a better spark?
Let's assume the figures from the direct hits site are correct - we are talking about a 4% increase in power. This will be undetectable by the driver and might well average out to next to nothing over a number of dyno runs. 2% of that variation would have to be considered normal and due to temperature and operator variables, maybe more.
IMHO the gains via ignition upgrades are at low revs and off idle where drivability is the biggest issue. I have always seen the bimprovement idue to ignition upgrades in areas other than outright power.
I don't beleive that there is anything "wrong" with a stock sierra ignition system in good condition. If the engine is boosted, there might be a need to increase spark power, but if not, why would there be a need?
In any case, if capacitors were the go, I can assure you they would already be on the car. (Sorry if this sounds like a cop out, but I can;t see the capacitor making any real lasting difference)
Steve.
Posted: Tue Jun 05, 2007 8:22 am
by Santos
Gwagensteve wrote:
In any case, if capacitors were the go, I can assure you they would already be on the car. (Sorry if this sounds like a cop out, but I can;t see the capacitor making any real lasting difference)
Steve.
yes and if the car needed variable valve timing, it would of had it, an if suzuki felt 16 valves would of made a difference it would of had that too
Come to think of it suzuki had no budget constraints and only consideration was a peak performing motor , not an all round motor which needed to suit a range of gobal markets
really steve i often agree with your rants but this one is just that ranting.
i'm not saying i'm not skeptical of the direct hits either, if someone wants to try it out i would be interested.
Posted: Tue Jun 05, 2007 8:42 am
by Gwagensteve
I understand your point but VVT is predominantly an emissions control device, hence the reason that the newest jimny's now have vvt but gained 1kw in power. as emissions rules have become tighter, the tricks manufacturers have had to come up with to get cars through (especially cars with old engine architecture like the M13) have become more elaborate.
remember, mercedes had 300hp per litre, natrually aspirated, in 1955. Most gains have been in economy and emissions, not HP.
I guess I didn't really explain myself properly - If fitting a capacitor had broad, lasting benefits all spark ignition cars would already have them. As it is, they might have a small benefit at high RPM but outside of that I would be surprised if they had any benefit in dirvability.
Remember, you can't trick physics here - you are only re arranging the same amount of power not making more, so the effect will be shorter spark duration at more power. It's not rocket sicience.
MSD's actually produce a longer spark duration( multiple spark event), which is where th benefits lie, because if the very short spark duration you get with snake oil (oh, I mean direct hits) doesn't result in a clean burn, then you won't have another chance.
In cars that run rich, have poor mixture control, foul plugs or are boosted, then bog. long, mutliple sparks will assist. As a "boost" to a stock motor, direct hits are in the hiclone category IMHO.
My call is no improvement in off idle drivability.
PS Santos, If I am ranting, you'll know, I'll have *rant mode on*
Steve.
Posted: Tue Jun 05, 2007 9:04 am
by Gwagensteve
PS Just read the "how it works" on their web site. Man, there are some "interesting" assertions there.
Hmmm.... is that the faint odour of snake oil in the air?
Steve.
Posted: Tue Jun 05, 2007 10:00 am
by cj
I mentioned this sort of thing at the tech night our club had at Bosch recently. Basically the comment was don't waste your money.
Posted: Tue Jun 05, 2007 9:19 pm
by Dooley
Smells like BS to me.
If you have a look at the New Mexico test, it caused radio interference in some installations.
Also in their testing they put, "Power increase noted".
I mean fair enough for them not to pick up on placebo as that's what sells their product. Really though you can't do something to a car, tell the driver that it improves power, fuel economy or so on and expect them not to change their driving habits, which will throw off results and placebo effect can trick people into believing there was actually a difference.
Just my 2c.
Posted: Tue Jun 05, 2007 9:26 pm
by Kitika
The Roadless gear website
You have our promise that these things really do work. Try a set today and if you are not happy with them - we'll refund your money. Simple as that.
I'm tempted to try it out and give the capacitors a work out but being an apprentice with a set of 32's and reduction gears on the way makes it difficult
Posted: Wed Jun 06, 2007 9:48 pm
by Drew
if anyone really wants to try them in brissy .i would like to dyno before & after .
my bet is no real difference. have seen & binned them before