Hood Spacers......
- Thread starter RocZX
- 49 comments
- 23,149 views
- 4,209
- Wasilla, AK
No.
- 9,891
- Carthage, TN
- race_emhard
Me: It looks like your hood doesn't fit.
Owner: *lifts hood* Got 'dem spacers bro!
Me: *walks away*
Owner: *lifts hood* Got 'dem spacers bro!
Me: *walks away*
- 4,209
- Wasilla, AK
At last - we agree on something.
This isn't going to become a habit or anything.
This isn't going to become a habit or anything.
- 9,891
- Carthage, TN
- race_emhard
There is actually a very short list of things we agree on.
- 3,475
- Vilnius
I bet you both like cupcakes!
- 23,429
- It/It
- GTP_TheCracker
- 6,041
- Puget Sound
- Crash852
Or I guess you can just drive around with the hood popped open like this on front opening cars. Nice thing is it won't fly up.
What if they are both cupcakes?
What if they are both cupcakes?
- 15,465
- Orange County, NY
- GTP_GT916
- Nii916
In simple words: It looks stupid.
- 1,928
- San Bernardino, California
- Gerarghini
- Gerarghini
I've never heard of these before. And no.
- 451
- Midwest
It doesn't look good, but some people need to use them for their mad JDM engine swaps.
Sage Ages
(Banned)
- 12,817
- Antarctica
Are you saying that some motors don't have enough clearance or are you being sarcastic?
- 451
- Midwest
No, some motors don't have clearance. For example, here's an H22 2.2L engine in a Honda CR-X HF (which came stock with a 1.5L)
He's using 1.5 inch spacers in conjunction with an aftermarket hood that has a small cowl to help for motor clearance. He did this so he wouldn't have to cut his hood like this...
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- 23,800
- Philippines
It'll help with cooling down at low speeds or at a stop, but at high speeds, that high pressure zone plays all sorts of havoc with air flow. Wouldn't be surprised if propping it up too high results in flow reversion.
But this is highly dependent on the aerodynamics of the car, and how effective air flow is managed through the engine bay. Some people have tested and seen a drop in temps (and, obviously, if you have an ITB set-up with the trumpets pointing towards the rear firewall, you WILL get more air in them), some have tested and have seen a rise in temps.
This is one of those big YMMV things. For most (modern) cars, the most aerodynamic and effective solution is venting the front end of the cowl, to better pull air through the radiator. Or, if you want more cooling, start sawing away at the fake, blocked off parts of the grille.
Of course, if you've got a Mustang, which has a big old parachute of a front grille, any extra venting up top will be effective. There's no way the high pressure zone up top is worse than the one underhood, which is strong enough to cause hood flapping at high speed.
But this is highly dependent on the aerodynamics of the car, and how effective air flow is managed through the engine bay. Some people have tested and seen a drop in temps (and, obviously, if you have an ITB set-up with the trumpets pointing towards the rear firewall, you WILL get more air in them), some have tested and have seen a rise in temps.
This is one of those big YMMV things. For most (modern) cars, the most aerodynamic and effective solution is venting the front end of the cowl, to better pull air through the radiator. Or, if you want more cooling, start sawing away at the fake, blocked off parts of the grille.
Of course, if you've got a Mustang, which has a big old parachute of a front grille, any extra venting up top will be effective. There's no way the high pressure zone up top is worse than the one underhood, which is strong enough to cause hood flapping at high speed.
- 4,209
- Wasilla, AK
Well, with that one you could probably just use a vented hood. Probably a more reliable solution based on the theory you spouted, and less stupid-looking.
- 23,800
- Philippines
Not my theory. It's just aerodynamics.
Buying a hood spacer is cheaper than buying a new hood.
What's even cheaper is simply doing it the way any sensible person would: removing the insulation and adding washers and measuring underhood and intake air temperature till you find a hood angle that causes maximum benefit without flow reversion at highway speeds (if any angle works at all)
Buying a hood spacer is cheaper than buying a new hood.
What's even cheaper is simply doing it the way any sensible person would: removing the insulation and adding washers and measuring underhood and intake air temperature till you find a hood angle that causes maximum benefit without flow reversion at highway speeds (if any angle works at all)
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