| Author |
 Topic  |
|
| |
Current Topic Rating:  | Join the Forum to Rate this Topic at: www.VNCommodore.com Support Forums
|
|
|
kristianvanek
Learner
6 Posts
 |
 Posted - 04 Feb 2006 : 9:04:29 PM
|
|
hi i am new to this forum, i have been told that there is an intake mod thats a resistor on a wire and it will allow ur car to gain more hp. wanna know how to do it, and is the kits on ebay that mod.
|
|
Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 05 Feb 2006 : 3:28:03 PM
|
The only things like that around that I know of just trick the car into running slightly richer because it fools the ECU into thinking that the throttle body is more open than it really is. Would it work? In the short term you might notice a bit of a gain from it (maybe 1-2kw). But you'll also notice that your fuel consumption will go up too. And it can make idle even worse than it already is.
If you want a fairly simple intake mod that will give you a bit more 'go': Make sure that your throttle body can actually open up 100%, many only open to about 85%, you can grind the little stop post away a little so that it can open to 100%, that will make a big difference. That takes a bit of time to get right though, a faster one would be a cold air intake and a hi-flow panel filter.
Either works fairly well, both together work VERY well. Don't bother with those things from e-bay like the resistor kits or the electric 'superchargers'. You won't be doing your car any favours using things like those. Your money would be better spent on other mods. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
Report to Moderator  |
|
|
hdt_aero
P Plater
47 Posts
|
Posted - 06 Feb 2006 : 11:28:54 AM
|
| the sensors are there for a reason putting a resistor on it will cause the car to run incorrectly |
| Report to Moderator |
|
|
bodsie07
Learner
6 Posts
|
Posted - 13 Feb 2006 : 9:27:31 PM
|
Hi mouce, interested in making my throttle 100% where is the stop post? and how much do i have to grind off?
cheers bodsie07 |
bodsie07 |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 13 Feb 2006 : 11:06:30 PM
|
If you stand at the passenger side of the engine bay and look at your throttle body, you'll see the main part of the throttle body (greyish silvery colour), and the black plate on top of it with the cable (cables in an auto) from the accelerator pedal attached to it. With it sitting there (and make sure it's cold first), turn it by hand to see how far it will move. The cable pulls it around in an anticlockwise direction (if you were looking down at it).
Now that you've got that much sorted, remove the intake pipe from the throttle body (undo the hose clip and slide it off) so that you can see the butterfly plate inside the t/b. Again with your hand, open the throttle as far as it can go before making contact with that little post that is part of the t/b, see how far the butterfly plate has moved. Ideally you should be looking at it completely end on so that you see as little of it as possible.
Due to the manufacturing process there's a lot of variablility between the throttle bodies even on cars with consecutive engine numbers. Some already open to almost 100% (mine for example) while other ones open up as little as 75-80%.
By now you should have noticed which little metal post stops the valve opening (NOTE: this is not the one with the base idle screw in it, do not grind anything with a screw in it). You should be able to grind (or even file) the post so that the butterfly valve can open a little more. How much you have to grind off depends on how far your t/b opens already, I hardly had to touch mine, while some get half of it taken off.
Now for the real advice:
1) If in doubt don't grind anything.
2) It is best if you take the throttle body out of the car to do it
3) This is a REALLY good chance to clean out your throttle body and Idle Air Control Valve
4) While you are grinding have a bit of rag, or some old newspaper screwed up and jammed inside the t/b to stop any wayward metal filings from going anywhere they shouldn't.
5) When in doubt get yourself a Gregory's Manual (KMart, Repco, Autobarn...). It will become your bible for working on the car.
If it's an auto you may have to re-adjust the kickdown cable once it's all back together. And most of all, reset your idle speed when you're done: pull out the engine fuse, wait 30 seconds, put it back in, start the engine, and hold 3,000rpm for 10 seconds.
If after that essay of an explanation you're still a little perplexed I'll do something about some pictures for you in a day or two if you want. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
bodsie07
Learner
6 Posts
|
Posted - 13 Feb 2006 : 11:10:40 PM
|
| cheers 4 the help if you could do that it will be appreciated |
bodsie07 |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 14 Feb 2006 : 1:33:20 PM
|
Someone else on another forum wrote up a really good How-to guide on it. So I'll just give you the link for it, there are pictures, and about three pages of comments to read through if you want.
http://forums.justcommodores.com.au/showthread.php?t=20055&page=1
Enjoy. You should notice the difference when you really boot it. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
bodsie07
Learner
6 Posts
|
Posted - 15 Feb 2006 : 5:49:49 PM
|
| thank you so much it was a great help any other idears thanks bodsie07 |
bodsie07 |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 15 Feb 2006 : 6:47:11 PM
|
Cleaning out the throttle body and the idle air control valve just makes it idle a little more smoothly (if you didn't do it already).
As for what else you can do to help it along...well...how much do you want to spend? Everything from a hi-flow washable air filter (K&N panel if you don't drive in dusty areas too often, otherwise look at a unifilter or a finer-filter) all the way through to a full engine rebuild with modified internal components.
Also, depends on how much you're comfortable doing yourself. Fitting a cold air intake and coupling that with a K&N panel filter would be the best of the cheap mods you can do. You can pick up the CAI from holden fairly cheaply (even cheaper at wreckers if you can find one), and the panel filter can be purchased from autobarn or Repco for under $100 normally (sure it's pricey for an air filter, but it's the last one you'll ever need to buy if you look after it). There are a lot of how-to guides on fitting CAIs to VN's around the place, if you want I'll find one for you, or you can look yourself. It's a fairly common mod, and one well worth doing. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
bodsie07
Learner
6 Posts
|
Posted - 15 Feb 2006 : 7:11:41 PM
|
thanks 4 the quick reply how much is a cold air intake worth bodsie07
|
bodsie07 |
| Report to Moderator |
|
|
ldolton
P Plater
17 Posts
|
Posted - 23 Feb 2006 : 12:30:03 PM
|
hey mouse i would realy appreciate if you cold post a link for the how to guide to fit the cold air intake to my calais and i do live in central west nsw so dusty roads are all about is that bad with cai??
and what other mods can i do easily myself for increased performancwe and responce? i dont want to push my insurence up though.. do you know much bout performance chip what are they worth how hard are they to install? |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 23 Feb 2006 : 9:14:06 PM
|
BODSIE07: Call holden and ask about the VS supercharged CAI, shouldn't cost more than $100. Otherwise, just have a look around on ebay.
IDOLTON: If you do a lot of dusty driving with your car (regardless of if it's got a CAI on it or not), might be a good idea to invest in a unifilter or a finer-filter. Some sort of washable foam air filter would be a very good step. Paper filters aren't bad, but you can do a lot better.
The best mod for increased response would be a supercharger *grin*. But that would play havoc with your insurance. So making sure your t/b opens up to 100% (as above), as well as a CAI. Is a really good place to start (and won't do anything to your insurance). Either that or drop a V8 throttle body on there (they just bolt straight on), and make sure it's 100% as well. It's a bit more expensive but can make a difference. You can pick up performance memcal chips fairly cheap, but as with all things you get what you pay for. If you pay bottom dollar for a 'performance' chip, you'll get piss poor performance. If you get a nice custom tune using a dyno (really fkn expensive), you'll get the best result. And I guess legally you're obliged to inform your insurance company about a performance chip. Which would most likely bump it up a little.
That said, you can make your own performance chip if you've got the right gear and a bit of time and knowledge. If you're really desperate for a 'performance' memcal, I can give you the contact details of someone who does make them to order, and at the moment he's got about 60 to give away for free (you pay for postage).
I'll find that link to the CAI installation guide in the next day or two.
|
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
ldolton
P Plater
17 Posts
|
Posted - 24 Feb 2006 : 3:24:15 PM
|
dude the details for the fella giving them away would be awsome. but still giving them away sound a bit suss why is he giving them?
cheers it would be good for the instalation guide |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
Posted - 24 Feb 2006 : 6:33:01 PM
|
The only reason he is giving them away is that he makes them himself and he purchased 100 blank ones from ebay, and has finished playing around, and out of the goodness of his heart he's going to make custom tunes for people (let him know what your car is and any mods that you've got such as a CAI, extractors, cat-back...) and give them away. The only cost is that you have to send him a self addressed parcel so he can ship it out to you.
There's nothing suss about it. I'll be getting one from him myself at some point (though not free for what I'm getting *grin*)
Here are his instructions on how to fit them:
http://forums.justcommodores.com.au/showthread.php?t=19577
Here is the thread where he's 'advertising':
http://forums.justcommodores.com.au/showthread.php?t=26904
Just send an e-mail to 'greenfoam'. He's a good guy, he knows a crap load about custom tunes for VN/VP commodores. He's done some stuff that I've never come across before. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
| Report to Moderator |
|
|
bodsie07
Learner
6 Posts
|
Posted - 25 Feb 2006 : 08:05:21 AM
|
thanks mouce i have been flat out with work i will do that on monday then i will let you know once again thanks
|
bodsie07 |
| Report to Moderator |
|
|
ldolton
P Plater
17 Posts
|
|
|
ldolton
P Plater
17 Posts
|
Posted - 27 Feb 2006 : 5:40:31 PM
|
mouce just wondering if u found the site for fitting the ova radiator cai and if not could u point me in the right direction to find it myself
cheers luke |
| Report to Moderator |
|
|
mouce
National Driver
1525 Posts
|
|
|
ldolton
P Plater
17 Posts
|
|
| |
Topic |
|
Topic Locked
