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Topic: What do you think about...

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Yodwinder
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What do you think about...
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This (click me) rather than the hood vents?

"Just heard from TC on the NAXJA forum who had added a bolt on induction scoop that was similar and recorded a drop of 70*F in under hood temperature to before. He now records only 20*F above ambient under the hood instead of 90*F! That has got to help not only cooling but a drop in intake temperature ( equals more power as every 10*F drop in intake temp = 2hp from memory ) as well as extending life of other components like batteries which are known to have a longer life in cooler temperatures. Even plastic and rubber parts etc. would be better off!"

Quote taken from here (click me) by the way.

Not to mention his install sounds pretty painless and straight forward. Bolt-in one might say.

Anyways, the winter months will be here before long so this would give me time to save too as in the winter I doubt under hood heat will be much of a problem.

If anyone has heard anything about this hood I'd be interested to hear it.

-- Edited by Yodwinder at 02:09, 2008-08-20

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Yodwinder
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Also while on the topic of cooling I linked to a fan in the topic "Hood Vents" that I'd found on ebay that claim 4.5k - 5k CFM... out of a Lincoln Mark VIII if memory serves me correctly.

Anyways, if I did get that fan is it a better idea to take out the electric installed right now or leave that in and do away with the clutch fan? Anyways, regardless of what I do many sites claim added mileage because of using an electric fan, any truth here?

And would I want to set it up on a switch so I could turn it on / off as needed?

Oh, and last time I went out my clutch fan didn't even turn on and it almost got into the red. Had to shut it off and pop the hood to let some hot air out. Then I just left the hood open, but latched and then it stayed at about 215... what could be causing it not to turn on?

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LEAD_NOT_FOLLOW
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1) Hood is cool looking, however don't forget the cost of freight and than the cost of having it painted. You'll probally be looking at at LEAST $800 when it's all said and done.

2) I built the "ultimate cooling system" in my XJ (you can search under that to find the thread on here) for a lot less than the cost of the hood. I guarantee you I run cooler and have a more effective system this way than just adding a cowl hood (and for less money).

3) I've played around with fans and to be honest with you the stock fan clutch puts out way more CSM than 98% of the fans available. The only one I found that was available a year ago was a SPAL fan (which I do have, however not installed). Any junkyard fan will no where put out the same CSM as the factory fan/clutch can if it is properly working.

4) The only benefit I see of having a aux. fan on a switch is while your on the trails. Your motor runs most effectivly at the 210-220 temp range. Your factory aux. fan has a thermo switch on it that will kick it on/off when needed. If you search, you can find the wiring schematic for wiring your aux fan to a switch that still alows the thermo switch to work, the switch when on just over-rides that thermo switch so it runs 100% of the time. Nice when your on the trail crawling and don't have a lot of air movement.

5) A properly maintained open-loop cooling system will not have any overheating issues. I can be on the trail all day long crawling in 100deg. weather and never reach 220deg. If your wanting to spend the money upgrade needed parts; don't blow it on a cowl hood that really isn't need (though they do look cool). A all metal 3-row CSF and a high-flow waterpump will get better results for 1/2 the cost.

6) If you don't want to run hood vents (I highly recomend them and sell a ton of the LeBarron ones) you can make your own cowl hood by running hood spacers. I started the "fad" a few years ago and a lot of guys started doing it after I was. Here is a link to my write-up on that: http://greatlakesxj.activeboard.com/index.spark?forumID=43793&p=3&topicID=6594654

7) Anyone who tells you that a cowl hood decreases the temp 70deg. is smoking crack. If they are talking about under hood temp maybe, but no way in h#ll are they decreasing the engine temp that much just by running a cowl hood.

8) I've done my research on engine cooling with the 4.0L and have a lot of money in my motor as well as the cooling system. Take the above 7 points for what it's worth....

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dogwonk
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above.gif

I agree!!!

The cowl hoods look awesome. I would love to have one myself. BUT, I prefer to spend my Jeep money on things that are more than cosmetic. I know it will help with temps under the hood, but there are other things (as mentioned above) that can help just as well or better.

Building a Jeep is exciting. I am glad to see your enthusiasm. You can spend your money however you choose, but if you ask for advice on here, you are going to get it. biggrin.gif

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aci4369
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I ran Lead's #6 on my old XJ.  It is still on the XJ, just is Mystickfire's now.  You can watch the heat come out the top.  I would think that they would have close to the same affect, #6 and your cowl hood.  I don't know that for sure, but they apear to me to offering the same benefit.

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Yodwinder
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When you space the hood like that though isn't there a better chance of snow / rain etc.. getting in?

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aci4369
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Maybe if you are sitting still.  But if you think about it, you are letting a lot more water and etc. in with vents.  Going down the road it works the same as the cowl, the water gets blown past; heck sitting still it will do the same as the cowl if you think about it.

Those spacers have been on MystickfireXJ's hood for 3 years now and have had no problems.  This is kinda a jab at Nick (Mystick) but if you look under that hood, the wiring is all custom getto rigged.  So if spliced wires haven't had a problem for over 3 years of weather, I don't think that there would be to much to worry about.  That is my opinion.

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LEAD_NOT_FOLLOW
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Yodwinder wrote:
When you space the hood like that though isn't there a better chance of snow / rain etc.. getting in?
And there isn't with a cowl hood that has probally an even larger opening? evileye

 



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Yodwinder
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Well if you looked at the back the cowl hood has a little vent thing to keep stuff out whereas if you just popped it up with spacers it doesn't have anything to keep the stuff out.

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LEAD_NOT_FOLLOW
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Last I understood it water could still flow threw a "vent". All a "vent" would do is keep twigs/leafs/ect. out. Water is still going to flow threw an object that has holes in it.

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Yodwinder
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LEAD_NOT_FOLLOW wrote:

Last I understood it water could still flow threw a "vent". All a "vent" would do is keep twigs/leafs/ect. out. Water is still going to flow threw an object that has holes in it.



http://www.merriam-webster.com/dictionary/through

http://www.merriam-webster.com/dictionary/threw



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aci4369
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Yodwinder wrote:

LEAD_NOT_FOLLOW wrote:

Last I understood it water could still flow threw a "vent". All a "vent" would do is keep twigs/leafs/ect. out. Water is still going to flow threw an object that has holes in it.



http://www.merriam-webster.com/dictionary/through

http://www.merriam-webster.com/dictionary/threw


hahahahahahaha...   School is open.   juggle.gifclap.gif



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dogwonk
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Uve gott a bigg jobb ahed uv yu if yor gunna cerekt evree mispelt werd on heer, meye frind!

Now let it go and just read people's advice. It is doubtful that someone will want to help you if you are correcting their spelling. And, you don't have to like what they say or do what they say...It is after all their opinion.

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threeEs99
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My opinion on the subject is really a question.

Is a cowl hood or a set of vents going to make your rig more trail worthy?
I know that either of them cut down under hood heat, and Lead is right about the best operating temp range of 210- 220.
If your rig is overheating on a trail I doubt hood mods will help. Its some other problem.

To me, spend your hard earned dollars on something that makes your rig a better performer.

I'll step off my soap box now. Thank you.

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Yodwinder
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Whatever anyways, as was aforementioned I don't think my fan kicked on when it should have last time I was out on the trail.. it was kinda thrown in at the end so people may have missed it but it still needs to be addressed.

So anyone know why it wouldn't be kicking on?

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