Loss of power due to heat?

[manonastick]

THis may sound like a noob question hence it being it here but will heat affect our cars performance due to the CAI taking in more hot air than cold? I have a aftermarket pod air filter sitting on top of the stock air box so if that is partially the cause of it. Im just curious because when i started up my car around mid day it was soo slow and already felt slow before lol.
struggled up a small slope. . . wish i can get my 18c sooner =/

[Bludger]

the answer to your question is yes.

I get the feeling you already know, you just needed confirmation, is this correct?

Heat will effect everything, power, economy, emissions, longevity of vehicle components.

[lilthug]

short answer


yes,.... the heat will cause a drop in power

[lilthug]

at the same time, if you didnt have the cai

heatsoak in the engine bay would be worse

[manonastick]

Yeah i just need confirmation but
While im on topic of power It just annoys my when dad's mazda 2 (i know its a 10 years newer than my car but still...) feels faster than my ek1 =/ It same weight but i don't get how a 1.5 dohc 77kw wins a 88kw 1.6 sohc. Does vvt make that much of difference?

[lilthug]

extra cam

vvt is pretty much vtec

more torque

so yes

[manonastick]

make me sad to hear it lol
i know vtec is just a fancier term for vvt
guess i gotta live with this shame til i get a engine swap.
Thanks for the help

[trism]

Nope, vtec isn't a fancy term for vvt. Totally different.

Vtec changes the lift of the valves.

Vvt is variable valve timing. Changes when the valves open.

[manonastick]

I thought they were similar though? I thought once vtec activates it opens another valves as well? Correct if im wrong as i'm not that familiar with the actual operation of vtec

[migoreng]

Yes.. you will notice slightly less power due to heat soak.
Drive your car in the afternoon or at night and it will feel responsive again lol.

[genkitofu]

haha dont worry im on the same boat and till i can afford to drop my h22a in =[
and its more worse when you have aircon on as well

[manonastick]

haha dont worry im on the same boat and till i can afford to drop my h22a in =[
and its more worse when you have aircon on as well

Try driving with aircon on and 3 friends up hill. . . equals to sad face
i feel you brother
you work at maccas and i work at kfc
ill get there soon : D hopefully. .

[Red_EG4]

at the same time, if you didnt have the cai

heatsoak in the engine bay would be worse
Sounds like "manonastick" just has a SRI to me peteju

I have a aftermarket pod air filter sitting on top of the stock air box

Would this be suffering from heatsoak more than stock airbox due to the bare Pod filter?

[mugen_ctr]

IF the pod is exposed in any way in the engine bay, its pointless having a pod sitting in it. But if the pod is enclosed withing the air box, than its essentially the same as any other oem filter, think of DC2 air box, pod filter withing a enclosed plastic box.

Than adding a CAI feed to the box is a better option imo if u cant afford a proper cai system. But one of the best feature of this, using oem box with cai feed, is the no need to worry about rain, which might = hydro lock

[manonastick]

Sounds like "manonastick" just has a SRI to me peteju


Would this be suffering from heatsoak more than stock airbox due to the bare Pod filter?

I dunno what to call this but the car was like this when i got it and still is like this
http://i783.photobucket.com/albums/yy112/Magikmonkeyman/IMG_1229.jpg
I dunno if a proper CAI will be worth it as im doing a engine swap somewhere in the future next year. It doesn't give more kw/hp but better response right? i maybe actually enjoy that than . . . hmmm

[genkitofu]

I dunno what to call this but the car was like this when i got it and still is like this
http://i783.photobucket.com/albums/yy112/Magikmonkeyman/IMG_1229.jpg
I dunno if a proper CAI will be worth it as im doing a engine swap somewhere in the future next year. It doesn't give more kw/hp but better response right? i maybe actually enjoy that than . . . hmmm

ohh were both in the fast food area pay kinda sucks but hey can't complain cause its better then nothing right?

now back on to topic my friend has the same setup as your pod in his n14 pulsar it actually makes quite alot of difference with it the sound and better air flow and also response but as mugen_ctr making a pipe to flow more air into the box would be a good diy/idea to do for more cooler air and since its not a proper cai wont cause hydro lock

[trism]

I thought they were similar though? I thought once vtec activates it opens another valves as well? Correct if im wrong as i'm not that familiar with the actual operation of vtec

No. Vtec activates a third cam lobe, which opens up the valves further, and for longer. It doesnt open more valves.

vvt is just a motor on the front of the cam that adjusts at what point the cam opens, not how long it opens for, or how much.

Use google, its a magical thing.

[TbM]

I think the Vtec on some d-series may activate a 4th valve trism, From what i read some models came with an Econemy version of Vtec where they only operate 3 valves per cylinder untill vtec engages the 4th. Not sure about this as i havent seen one myself but i just remember reading about it in some forums, Might of been called "VTEC - E" If i recall correctly.

Edit: http://http://en.wikipedia.org/wiki/VTEC#VTEC-E

[u mad?]

http://www.carbibles.com/fuel_engine_bible_vvt.html

[lilthug]

I dunno what to call this but the car was like this when i got it and still is like this
http://i783.photobucket.com/albums/yy112/Magikmonkeyman/IMG_1229.jpg
I dunno if a proper CAI will be worth it as im doing a engine swap somewhere in the future next year. It doesn't give more kw/hp but better response right? i maybe actually enjoy that than . . . hmmm


you would get heaps of heatsoak with that set up

box the pod up

[IV73CI]

If i were you, i would try and retro fit the cover back on if the filter fits inside.

then put a cold air feed below the box where the old resinator used to fit.

i thought about this setup, but cbf playing round it incase i get defected i still have the oem box.

so instead this is what i did.

DC2 Box with a Comptech Filter with Cold Air Feed
http://i78.photobucket.com/albums/j110/z00mxracing/EM1%20-%20Project%20Evolve/EM1-DC2BOX.jpg

As you can see i have not fastened securely the box yet.
http://i78.photobucket.com/albums/j110/z00mxracing/EM1%20-%20Project%20Evolve/EM1-DC2Box1.jpg

Cold Air Feed - next to the Foggies.
http://i78.photobucket.com/albums/j110/z00mxracing/EM1%20-%20Project%20Evolve/ColdAirFeed.jpg



By doing this, i still got to maintain a OEM look (well apart from the 3inch intake arm and the blue 45deg coupler.

but works great and i feel the barrp barrp barrpp barrppppp

"VTEC just kicked in YOOO!!

[Red_EG4]

I dunno what to call this but the car was like this when i got it and still is like this
http://i783.photobucket.com/albums/yy112/Magikmonkeyman/IMG_1229.jpg
I dunno if a proper CAI will be worth it as im doing a engine swap somewhere in the future next year. It doesn't give more kw/hp but better response right? i maybe actually enjoy that than . . . hmmm
Running some flex pipe from your fog light opening up to the base of your airbox would be a nice and cheap idea
Do you know if your resonator is still hiding under the air box?