2G A few questions

[deflator]

I'm finishing up building my first DSM up. I did all the mods in my profile this winter, now I've got it all together and just need an FMIC and to fix leaks. I still need to install some things and start tuning, but I have various ends to tie up that I have questions on.

1. What is the stock sidemount good for boost-wise? I have greddy U/LICP in there for the interim.

2. How many things can you hook up to the cigarette lighter 12v wire? I have 3 gauges running off it and would like to put my wideband on there too with an inline fuse.

3. I put -6an fuel lines and an Earl's inline filter Earl's Performance 230206ERL - Earl's Performance Inline Fuel Filters - summitracing.com
Then I read this is supposed to supplement the stock filter. Do I need more fuel filtration than just the Earl's unit?

4. I need to install my LC-1 wideband. It says to mount it to the frame rails, so is it really ok to mount the computer module to the bottom of the car? It won't reach where I put the sensor bung on the exhaust otherwise.

Sorry for all the stupid questions. I've put so much into this doing it the hard way, learning by myself as I go and I want everything to go smooth in the spring.

 

[yesItsdsm]

I would say the stock side-mount should hold up any amount of boost your gonna throw at it. Cooling efficiency will probably decline somewhere around 20 psi though.

Instead of wiring so many things into your cigarette lighter, you can wire some into your radio power supply.

 

[VETTE_50_TH]

Do not boost too much on a side mount, you could heat soak it, it loses a ton of efficiency, you should put your FMIC on first before you turn the boost up. As for the inline fuel filter, i want to know the same thing, becuase i was thinking about putting a stainless steel lines from the tank to the rail.

James

 

[deflator]

Instead of wiring so many things into your cigarette lighter, you can wire some into your radio power supply.

I've read that the radio wire isn't the best source. I know there are other 12v sources, I just want to know how many devices can be tapped into one

 

[deflator]

Hmm, I thought these were pretty easy questions, nobody knows the answers? I really want to install my wideband

 

[erecker]

Electronics 101

Find the fuse rating. Example - 20 Amp Cigarette Fuse.
20 Amp - 10% = 18 Amps safely usable on that circuit.

18 Amps - Accessory #1 - Accessory #2 - ... = Available Power.
Example - three gauges rated at 1 amp each (the rating will either be ON THE GAUGE or ON THE BOX or ON THE MANUAL!)
18 Amps - 1 - 1 - 1 = ?
15 Amps Usable

Look at your wideband - what is its rating? Lets say 3 Amps.
15 Amps - 3 Amps = ? still available

Can you use it?

Clue - if you start blowing fuses, you need to find another circuit to use, example radio circuit, windshield wiper circuit, radiator circuit, new circuit wired off of battery, etc. etc. Pretty much 'til then, you're fine.

 

[turbosax2]

2. You will be fine wiring all of them into the cigarette lighter. My brother has more than that running off the same wire and it's fine. If you're REALLY concerned about it, you could install a larger hot wire directly from the battery and use a relay, but I think that's overkill.

3. From what I have heard, you should use a 10 micron fuel filter on turbo cars. The Earl's filter is 85 microns. There has been some debate on this subject but I haven't heard of any problems with people using the Earl's filter. I wouldn't put the stock filter back in.

4. I had the same question while installing my brothers LC-1. I ended up using heavy duty velcro to stick the box on the side of the drivers shock tower. I didn't really want to put it under the car and risk it hitting something, so this was the best spot I could find. Another possible idea is to mount the box under the drivers seat inside the cabin, and run the wires from the sensor into the car where the rear o2 enters. I don't know if this would work, but it's something I just thought of.

Hopefully some of this helps you out.

 

[deflator]

Thanks guys, that answers most of my questions. Having the LC-1 under the seat would be ideal, I'll try to get it through where the rear O2 comes in.

I'd still really like to hear from someone who put their LC-1 under the car. I think thats what the instructions say but it just doesn't seem that smart of an idea does it?

 

[slowgsr]

Electronics 101

Find the fuse rating. Example - 20 Amp Cigarette Fuse.
20 Amp - 10% = 18 Amps safely usable on that circuit.

CEC and UL state that maximum loading of a overcurrent device is 80% unless your using 100% rated equipment, and i assure you that you aren't and probably have never seen such stuff, and the stuff in your car isnt 100% rated.

So if you have a 20A fuse, you can load it to 16 amps, just make sure the wire is rated for the current.

 

[kahl23]

Been running one of these:

Slowboy Racing, Inc. :: DSM :: Fuel :: Fuel Filters :: Mr. Gasket 6AN Billet Fuel Filter.

for about a year now, no problems, not sure what the spec is on it, though.

 

[deflator]

turbosax2 -
You were right, it fits nicely through the hole for the original rear O2. And all thats above that hole is carpet, so I'll be following your idea and putting it under the driver's seat. Thanks for all your help

Been running one of these:

Slowboy Racing, Inc. :: DSM :: Fuel :: Fuel Filters :: Mr. Gasket 6AN Billet Fuel Filter.

for about a year now, no problems, not sure what the spec is on it, though.

That looks like what I should have gotten, but the Earl's one will probably be fine for now.

 

[turbosax2]

turbosax2 -
You were right, it fits nicely through the hole for the original rear O2. And all thats above that hole is carpet, so I'll be following your idea and putting it under the driver's seat. Thanks for all your help

Good to know. I'm going to tell my brother to look into changing his so it goes through the rear o2 hole. Thanks for the follow up.