Are you guys keeping your heaters?

[Gollum]

If you're referring to the newegg link I posted, that thing can flow some serious CFM! I don't doubt the claim of the manufacture of 110.3CFM. With the restriction of the core, I'd bet it'd be able to push at least a solid 80 CFM through, which should be more than enough to heat up our little cars. But the issue with all the older OEM units isn't that they don't flow enough air, but that their air system is too complicated, and the air never gets where it's going with any force left over. 80CFM of quality heat is more than enough if you're just shotting it out of the center of the dash. But if you're trying to rout it to 8 different places then of course that's not enough airflow.

 

Besides, I LIKE the DIY ness of that heater core posted. I'd even like it uncovered if at all possible. (I don't have a dash...)

[goodoldjam]

I'm trying to figure out how to put that chevette setup in an enclosure so it doesn't look quite so... Um DIY. Haha and I'm a little concerned about how much air that 120 could really push through that core.

 

Have you tried that setup?

I don't think anyone has done this, even if I could rig something up it's still not cold enough to see how well it works.

That was also my concern, it won't flow what the fan is rated at. Probably want to avoid going to the high flow 200cfm fans they sound like jet engines.

Probably a better option would be to sandwich the core between 2 fans. My goal would be to get something that is the equivalent to a low setting coming out of the defrost vents. Definetly it would be an experiment, may not work well at all. Other option is to go bigger, like something that will fit 2 120mm fans or maybe figure a way to replace the giant squirrel cage and use the existing core. Heres a core that will hold 2 http://www.overclockers.com/forums/showthread.php?t=304440

The single fan would probably flow alot better if it had a shroud. I found a shroud made for the Chevette core http://www.dtekcustoms.com/d-tekcorefanshroudkit.aspx

This is basically what were dealing with under the dash, you need a way to feed the 2 2" vents. Maybe build a manifold out of Plexiglas or something kinda like in the picture. Wonder if they make a PVC Y that would work. Maybe worthwhile to browse homedepot and see what they have in the Heating and air section.

Edited September 9, 2010 by goodoldjam

[Gollum]

Designing it as a defogger only wouldn't be hard to do at like, like shown. For my personal setup I want mount the core with the fan blowing upwards, with a simple box made connected to the outlet, with a manually operated flapper door. I've included my own piece of wonderful mspaint art to showcase my marvelous design...

 

 

 

The main loss/benefit, is that there's no outlet for the leg area, but also the air only moves ONE direction to defog, no mucking about trying to get the air to turn on go where you want, thus less velocity should be lost. Besides, you don't need VELOCITY to defog, you need HOT air. Or dry cold air. One or the other.

 

Oh, and that 80mm 200CFM fan is CRAZY!!! Worst I've actually put into a case was one of the older thermaltake 90cfm 80mm case fan (the old version of the smart case fan ll). That think was LOUD at full blast. Sounded like a hair dryer for sure.

 

Two variable 120mm fans would be ideal, but that gets to be a lot of copper. Most of the weight in the system is in the core, another reason I want it lying down as low as I can get it.

[goodoldjam]

Designing it as a defogger only wouldn't be hard to do at like, like shown. For my personal setup I want mount the core with the fan blowing upwards, with a simple box made connected to the outlet, with a manually operated flapper door. I've included my own piece of wonderful mspaint art to showcase my marvelous design...

 

 

 

The main loss/benefit, is that there's no outlet for the leg area, but also the air only moves ONE direction to defog, no mucking about trying to get the air to turn on go where you want, thus less velocity should be lost. Besides, you don't need VELOCITY to defog, you need HOT air. Or dry cold air. One or the other.

 

Oh, and that 80mm 200CFM fan is CRAZY!!! Worst I've actually put into a case was one of the older thermaltake 90cfm 80mm case fan (the old version of the smart case fan ll). That think was LOUD at full blast. Sounded like a hair dryer for sure.

 

Two variable 120mm fans would be ideal, but that gets to be a lot of copper. Most of the weight in the system is in the core, another reason I want it lying down as low as I can get it.

 

You thinking about buying one of those crazy fans? I think the highest CFM that delta makes is a 252 120mm, kinda spendy at $28.

That fan would be more than enough, definitely would want to have some control over that.

I have the 77 Bonneville core and it is kinda defeating the purpose of weight savings. Filled with liquid it is fairly heavy.

I have a 80mm 32cfm fan right next to me and that would probably be adequate flow out of each vent. Like you said it isn't really about flow. It's like turning the heater on high while it's cold, it really doesn't do much.

I think I'm going to mount near the stock core location, I don't know where I would put it to go lower.

 

 

So are you thinking about feeding to just 1 vent or do you split it after?

 

Sorry for kinda HiJacking your thread xonix.

Edited September 9, 2010 by goodoldjam

[ktm]

Why run it with a flapper at all? The S30 has a small cabin. You could always have it run in defogger mode and it will do well enough to warm up the cabin.

[JSM]

I agree. The heater really isn't enough weight, if you aren't full out race car, then you may as well keep it. A/C you can do without by rolling windows down. Heat is something nice to have.

 

Just the opposite here in FL. Heat we can do with out, but A/C yikes, it is very difficult. Then add our friendly exhaust fumes into the mix and it gets worse.

[Gollum]

You thinking about buying one of those crazy fans? I think the highest CFM that delta makes is a 252 120mm, kinda spendy at $28.

That fan would be more than enough, definitely would want to have some control over that.

I have the 77 Bonneville core and it is kinda defeating the purpose of weight savings. Filled with liquid it is fairly heavy.

I have a 80mm 32cfm fan right next to me and that would probably be adequate flow out of each vent. Like you said it isn't really about flow. It's like turning the heater on high while it's cold, it really doesn't do much.

I think I'm going to mount near the stock core location, I don't know where I would put it to go lower.

 

 

So are you thinking about feeding to just 1 vent or do you split it after?

 

Sorry for kinda HiJacking your thread xonix.

 

No no no, not THAT high CFM. I'm talking about the silvestone I posted about, 110cfm 120mm, should roughly at max speed be as loud as a 80mm fan that flows about 75cfm. And it comes with a 3.5" bay controller. Easy to mount in a car

 

I'm also considering the stock location, just not stock orientation. It's probably best to leave it in the middle, I'm just going to lie it on it's back so that the fan's are blowing upwards, not sideways.

 

Should be quite a bit lighter than that Bonneville core.

 

 

But I wouldn't even split the air. I'd funnel it all down to a good .5" gap behind the dash (which doesn't exist, I plan on making an aluminum dash). I don't plan on having much else there to take up the space really so I should be able to just make a triangle box, maybe with some directional fins to help the air move to the outsides a bit.

 

Why run it with a flapper at all? The S30 has a small cabin. You could always have it run in defogger mode and it will do well enough to warm up the cabin.

 

Some of us have contacts, and the defog drys my eyes out enough as it is. That's the main reason I wouldn't want to do that.

[Phantom]

Kept my heater - and the AC too. Then again - I drive my car every day that I can which has added up to about 130,000 miles in the last 18 years.

[ZR8ED]

This thread is interesting, though I think a new one should be created with the "how to do it". As to the OP and the thread title question. I would keep the heater. It can really help you out if it gets cold out (I'm in the great white north ya know) plus if your engine temps are a bit high, you can bleed off some extra heat.

 

Me personally. My next z will have air as well. It just makes the car more comfortable, and more precisely, it makes it MORE useable over a broader range of temperatures/humidity. I have left my "black on black" Z at home at times when it is just too hot, and I don't want to arrive all sweaty, and burnt out tired.

[xonix_digital]

That's an interesting point zr8ed. I forgot that Im going black on black. Ac is for girls but if I ever want to convince my gf to let me drive us to the cape in the Z ac might be the ticket.

[jtmny1999]

I had removed all my AC and heater stuff but now that I moved to Seattle, I also have to think of something for those foggy windows. O found this interesting heater, maybe it can be modded somehow.

12v heater

[aplyedmind]

The true RATSUN +10 hp keep it with the rat.

[xonix_digital]

Lol. If I found the rat bones I was going to epoxy them into my dash.

Now that I'm sober I am glad I didn't find them.

[ktm]

I had removed all my AC and heater stuff but now that I moved to Seattle, I also have to think of something for those foggy windows. O found this interesting heater, maybe it can be modded somehow.

 

Just do what I did: bundle up and keep your windows partially down! While living in Germany my fathers 1972 911 could not heat the car sufficiently to keep the windows clear. I would routinely bundle up and keep the windows partially rolled down. I had to keep turning up the stereo, though, to drown out my girlfriend's bitching.

[mario_82_ZXT]

Just the opposite here in FL. Heat we can do with out, but A/C yikes, it is very difficult. Then add our friendly exhaust fumes into the mix and it gets worse.

Use the same thing but get a 12v pump and a cooler filled with ice and water to pump through the core and walla! A/C!

 

I'm totally going to try this in my Chevy LUV.

 

There was also a website a while back that showed either a 510 or Fairlady roadster where the owner bought 2 ceramic electric heaters, put them in some abs pipe (for ducting) and used a computer fan. He said they defogged the windows quite well.

 

Also, about the ZX. A stock ZX DOES run the a/c compressor in defrost mode to clear the windows stupid fast!

[Daphur280]

What about using this http://www.dtekcustoms.com/blackicegtstealth120.aspx or this http://www.dtekcustoms.com/unpaintedpro-120core.aspx as opposed to using the Chevette core? Would that be too small to run enough heat sufficiently to use as defrost?

[m4xwellmurd3r]

What about using this http://www.dtekcustoms.com/blackicegtstealth120.aspx or this http://www.dtekcustoms.com/unpaintedpro-120core.aspx as opposed to using the Chevette core? Would that be too small to run enough heat sufficiently to use as defrost?

lol those are roughly the same size as the chevette core. actually the first link looks EXACTLY like the chevettes core!

[cygnusx1]

Generally speaking, if you live in an area where it's cold enough that mice want to live inside your heater box, then you probably want your heater box as well.