Newbie Tech Section Often asked technical questions can be asked here
Sponsored by:
Sponsored by: CARiD

Cold Air intake vs Deck plate mod

Old Apr 17, 2007 | 09:10 AM
  #81  
X-AWDriver's Avatar
Contributing Member
 
Joined: Sep 2003
Posts: 10,549
Likes: 0
From: Littleton,CO
I don't have anything to post but the results look similar to the results I saw on two Tacos at a dyno session I was at a couple of years ago.
Reply
Old Apr 17, 2007 | 09:23 AM
  #82  
midiwall's Avatar
Registered User
 
Joined: Dec 2002
Posts: 9,048
Likes: 2
From: Seattleish, WA
Originally Posted by X-AWDriver
I don't have anything to post but the results look similar to the results I saw on two Tacos at a dyno session I was at a couple of years ago.
Yeup... it's the same all over, but be careful... If everyone with a question about this isn't all standing around the dyno at the time the run went down, then it's all just Internet hearsay and may not have actually happened.

There are woods close to here.. I wonder if I can find a bear and see if it stinks when I'm not there?


{yes, I'm pissy... I don't like spending 3 hours going through a hundred CDs looking for something to prove my word. A "thank you" from Whitey would help - I'll be holding my breath if anyone needs me}

Last edited by midiwall; Apr 17, 2007 at 10:13 AM.
Reply
Old Apr 17, 2007 | 09:42 AM
  #83  
ornery's Avatar
Registered User
 
Joined: Mar 2006
Posts: 153
Likes: 0
From: BC, Canada
hmm.. Looks like you lose low end torque and hp with the DP..
Reply
Old Apr 17, 2007 | 09:54 AM
  #84  
X-AWDriver's Avatar
Contributing Member
 
Joined: Sep 2003
Posts: 10,549
Likes: 0
From: Littleton,CO
Yes,you would lose a little with any intake allowing more air in;larger exhausts do the same thing. I really can't tell anything from the seat of my pants with the plate in or out but I like the sound and any free hp mod is worth it in my book if I just lose a little down low.
Reply
Old Apr 17, 2007 | 10:15 AM
  #85  
midiwall's Avatar
Registered User
 
Joined: Dec 2002
Posts: 9,048
Likes: 2
From: Seattleish, WA
Originally Posted by X-AWDriver
Yes,you would lose a little with any intake allowing more air in. Larger exhausts do the same thing. I really can't tell anything from the seat of my pants with the plate in or out but I like the sound and any free hp mod is worth it in my book if I just lose a little down low.
Yeup, and there's also the margin of error for the dyno to consider.
Reply
Old Apr 17, 2007 | 10:28 AM
  #86  
Whitey13's Avatar
Registered User
 
Joined: Jan 2006
Posts: 1,101
Likes: 0
From: MA
Originally Posted by Whitey13
I never once said I disagreed with what you claim, but reiterate that a S/C'd engine and a NA one are two totally different animals.

There is no disrespect intended...
Originally Posted by midiwall
Oh, I wouldn't get too excited. I'm sure he'll be back to say that I feathered it to fake the results, or I drew the graph by hand, or "how do we know that was with/without the deckplate?".

Whatever.
THANK YOU for taking the time to look for the dyno sheet. You should make it a sticky in the newbie section. I do find it somewhat amusing to see how sensitive some people are to internet conversation.

Now thats settled, what would cause that 50 HP spike in the dyno? Serious question.
Reply
Old Apr 17, 2007 | 12:24 PM
  #87  
midiwall's Avatar
Registered User
 
Joined: Dec 2002
Posts: 9,048
Likes: 2
From: Seattleish, WA
Originally Posted by Whitey13
Now thats settled, what would cause that 50 HP spike in the dyno? Serious question.
Dunno... I made 7-8 runs that day and it happened on every one of them. It was definitely my truck as this was a "dyno day" and there were other people out with me, none of them had that spike.

We'd asked the dyno guy, and he wrote it off to a fluke, but again, it didn't happen to anyone else. I was the 2nd truck to go, so you'd think it would have shown up again elsewhere.

Based on how a dyno works, I don't think it was from any electrical interference - I had the EMP generator disconnected that day.


The only thing I can think of is that it may have been a large timing kick. I had the SMT5 back then (yeup, while I was NA) and I may have had crap in one of the timing cells. But still, it's a HUGE spike to have come from just a timing advance on this engine.
Reply
Old Apr 20, 2007 | 04:28 AM
  #88  
rdharper's Avatar
Contributing Member
 
Joined: May 2006
Posts: 1,066
Likes: 0
From: Morgan Hill, Ca
Originally Posted by midiwall

The only thing I can think of is that it may have been a large timing kick. I had the SMT5 back then (yeup, while I was NA) and I may have had crap in one of the timing cells. But still, it's a HUGE spike to have come from just a timing advance on this engine.

My guess would be that if you had stock headers, but all other mods the same... you'd not have seen the spike.
Reply
Old Apr 20, 2007 | 06:19 AM
  #89  
midiwall's Avatar
Registered User
 
Joined: Dec 2002
Posts: 9,048
Likes: 2
From: Seattleish, WA
Originally Posted by rdharper
My guess would be that if you had stock headers, but all other mods the same... you'd not have seen the spike.
Interesting... I'm trying to think if I had the headers on back then. I may have.... hmmm...
Reply
Old Apr 20, 2007 | 10:36 AM
  #90  
rdharper's Avatar
Contributing Member
 
Joined: May 2006
Posts: 1,066
Likes: 0
From: Morgan Hill, Ca
Originally Posted by midiwall
Interesting... I'm trying to think if I had the headers on back then. I may have.... hmmm...
Not to make the thought mysterious. I'm thinking you may have hit a resonance point which in effect is a tuned exhaust, reducing exhaust pressure, or even actively pulling exhaust gas over a short range.

As you know, exhaust "tuning" is a big deal in some circles. At some rpm and load, you could get a sweet spot with high Q, acting like a turbo over a very short range.

Then again, I may have a bad case of rectal-cranial inversion. There are real experts on this stuff... don't know if anyone here has that background.
Reply
Old May 12, 2007 | 12:16 AM
  #91  
Parrothead's Avatar
Registered User
 
Joined: May 2007
Posts: 7
Likes: 0
From: Jackson, MS
K&N Cold Air Intake Results

Don't want to beat this dead horse since you guys are getting tired of this long thread.
So, here are my results plain and simple:
Driving consistantly conservative without a lot of hotrodding ($3/g gas sucks).
Before: 16 - 17 mpg
After: 20-21 mpg
It's expensive.
It's pretty.
It works!
Reply
Old May 12, 2007 | 10:31 AM
  #92  
Texas_Ace's Avatar
Thread Starter
Contributing Member
15 Year Member
 
Joined: Apr 2007
Posts: 4,932
Likes: 1
From: DFW TEXAS BABY!
prepare to be acused of working for K&N...



P.S. I decided to go ahead and try out both of these as well and will see what i find... First the deck plate then the CAI
Reply
Old May 12, 2007 | 07:04 PM
  #93  
WCorbett's Avatar
Registered User
 
Joined: Apr 2007
Posts: 590
Likes: 0
From: Grass Valley, CA
What exactly is a deck plate mod
Reply
Old May 12, 2007 | 07:10 PM
  #94  
OSU4Runner's Avatar
Registered User
 
Joined: Oct 2006
Posts: 1,341
Likes: 0
From: Woodway, TX
Originally Posted by WCorbett
What exactly is a deck plate mod
Search!! You shall find your answer! Here I'll help you out:

https://www.yotatech.com/forums/f130/deckplate-mod-75169/
Reply
Old May 15, 2007 | 01:49 PM
  #95  
displacedAlaskan's Avatar
Registered User
 
Joined: Dec 2006
Posts: 64
Likes: 1
From: Delta Junction, Alaska
I found a cold air intake setup for $85 on Ebay, here is a picture of the completed install.
http://images.channeladvisor.com/Sel...taPickupV6.jpg
I have yet to put it on my own 4runner, just wondering what you guys think of that setup.
Reply
Old May 15, 2007 | 03:24 PM
  #96  
rdharper's Avatar
Contributing Member
 
Joined: May 2006
Posts: 1,066
Likes: 0
From: Morgan Hill, Ca
Originally Posted by displacedAlaskan
I found a cold air intake setup for $85 on Ebay, here is a picture of the completed install.
http://images.channeladvisor.com/Sel...taPickupV6.jpg
I have yet to put it on my own 4runner, just wondering what you guys think of that setup.
I prefer my cold air inside the cabin as an output.
Reply
Old May 15, 2007 | 03:49 PM
  #97  
midiwall's Avatar
Registered User
 
Joined: Dec 2002
Posts: 9,048
Likes: 2
From: Seattleish, WA
Originally Posted by rdharper
I prefer my cold air inside the cabin as an output.
Actually... I know it's "somewhat common" for buggies to have the air intake on the cabin side of the firewall. The air's generally a WHOLE lot cooler there!

The downside of doing this in our rigs is that most of us don't want to hear THAT much intake noise.
Reply
Old May 16, 2007 | 09:00 PM
  #98  
displacedAlaskan's Avatar
Registered User
 
Joined: Dec 2006
Posts: 64
Likes: 1
From: Delta Junction, Alaska
An expansion on a good idea...maybe

yes... the idea has crossed my mind on if it work/how it work to hook up an a/c condensor somehow to the intake...don't know how that would work but it sounds cool. Maybe somebody's already tried that?
Reply
Old May 16, 2007 | 09:21 PM
  #99  
Texas_Ace's Avatar
Thread Starter
Contributing Member
15 Year Member
 
Joined: Apr 2007
Posts: 4,932
Likes: 1
From: DFW TEXAS BABY!
Do you mean an intercooler....
Reply
Old May 16, 2007 | 09:48 PM
  #100  
kevin444's Avatar
Contributing Member
 
Joined: Jun 2004
Posts: 1,813
Likes: 0
Originally Posted by Godzilla
This should really be in the newbie section as there a million threads on this topic. You are always going to have two sides on any mod, Its up to you to figure which side youre comfortable with. If money is not an issue buy a cold air intake (which sits right where the deckplate would)....while the factory box is out, do the deckplate..then switch it up. or why dont you just make a hybrid of the two.


amen to that
Reply

Thread Tools
Search this Thread

All times are GMT -8. The time now is 09:52 PM.