a functional hood scoop?
05-29-2003, 10:37 PM
#1
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a functional hood scoop?
hey, i just saw this page - http://www.geocities.com/sailbop/PICS.html (thanks to the links on corey's page. hey corey you gotta get my site on there too 
and i'll link yours on mine). anyway, the guys connected some tubes from the hoodscoop to his airbox...and it got me thinking. what kind of impact does this have? i didn't really see any information on the webpage. is it worth it, easy to do?? i'm curious, because this is the first time i've seen this done
and i'll link yours on mine). anyway, the guys connected some tubes from the hoodscoop to his airbox...and it got me thinking. what kind of impact does this have? i didn't really see any information on the webpage. is it worth it, easy to do?? i'm curious, because this is the first time i've seen this done
05-30-2003, 03:22 AM
#2
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The guy did his math wrong though. He states "The 4 pieces of_ 3/4" tube equal a total inner diameter of 3"."
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
Plus all those bends in the piping will slow the velocity of the air flow and give it more time to absorb engine heat.
But it is a auxiliary intake.
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
Plus all those bends in the piping will slow the velocity of the air flow and give it more time to absorb engine heat.
But it is a auxiliary intake.
05-30-2003, 04:42 AM
#3
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Originally posted by gwhayduke
The guy did his math wrong though. He states "The 4 pieces of_ 3/4" tube equal a total inner diameter of 3"."
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
The guy did his math wrong though. He states "The 4 pieces of_ 3/4" tube equal a total inner diameter of 3"."
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
05-30-2003, 05:08 AM
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He installed the electric fan in to increase performance. The factory fan is a mechanical type that uses a clutch and belt. This is parasitic and creates a drag on the powertrain. By removing the fan he probably added 10hp+. Several members of TTORA have done the same to there Tacoma's using the Flexlite 210 fan. Almost all of them have reported a significant gain especially with the s/c. I plan to do the same soon!
05-30-2003, 05:21 AM
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Originally posted by kaneman23
He installed the electric fan in to increase performance. The factory fan is a mechanical type that uses a clutch and belt. This is parasitic and creates a drag on the powertrain. By removing the fan he probably added 10hp+. Several members of TTORA have done the same to there Tacoma's using the Flexlite 210 fan. Almost all of them have reported a significant gain especially with the s/c. I plan to do the same soon!
He installed the electric fan in to increase performance. The factory fan is a mechanical type that uses a clutch and belt. This is parasitic and creates a drag on the powertrain. By removing the fan he probably added 10hp+. Several members of TTORA have done the same to there Tacoma's using the Flexlite 210 fan. Almost all of them have reported a significant gain especially with the s/c. I plan to do the same soon!
https://www.yotatech.com/forums/show...t=electric+fan
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05-30-2003, 05:24 AM
#8
calrockx, I'll try and add you sometime soon.
I'll drag your bookmark to my desktop so I know to add it later.
His page is hosted with Geocities, so it will go down often due to people looking at it, and he has the free account.
Geo is not made for high bandwidth use.
Members who use Geocities can upgrade for $$$ to host pics on forums that will show up, and also get more bandwidth.
I'll drag your bookmark to my desktop so I know to add it later.
His page is hosted with Geocities, so it will go down often due to people looking at it, and he has the free account.
Geo is not made for high bandwidth use.
Members who use Geocities can upgrade for $$$ to host pics on forums that will show up, and also get more bandwidth.
05-30-2003, 05:41 AM
#9
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Originally posted by kaneman23
He installed the electric fan in to increase performance. The factory fan is a mechanical type that uses a clutch and belt. This is parasitic and creates a drag on the powertrain. By removing the fan he probably added 10hp+. Several members of TTORA have done the same to there Tacoma's using the Flexlite 210 fan. Almost all of them have reported a significant gain especially with the s/c. I plan to do the same soon!
He installed the electric fan in to increase performance. The factory fan is a mechanical type that uses a clutch and belt. This is parasitic and creates a drag on the powertrain. By removing the fan he probably added 10hp+. Several members of TTORA have done the same to there Tacoma's using the Flexlite 210 fan. Almost all of them have reported a significant gain especially with the s/c. I plan to do the same soon!
05-30-2003, 07:12 AM
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Originally posted by gwhayduke
The guy did his math wrong though. He states "The 4 pieces of_ 3/4" tube equal a total inner diameter of 3"."
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
The guy did his math wrong though. He states "The 4 pieces of_ 3/4" tube equal a total inner diameter of 3"."
My calculations show a 3" tube having a cross sectional area of 7.1 square inches. His piping has a combined cross sectional area of 1.8 square inches. His four 0.75" pipes added as much cross sectional area as one 1.5" pipe.
C
Last edited by GV27; 05-30-2003 at 07:15 AM.
05-30-2003, 07:39 AM
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Originally posted by Cebby
Yep, we know about replacing the factory fan with the flex, but I was talking about the auxilary fan mounted off to the side. It's on the driver side mounted at an angle. I've only seen that a couple of times before at car shows trying to cool a big ol' RAT!
Yep, we know about replacing the factory fan with the flex, but I was talking about the auxilary fan mounted off to the side. It's on the driver side mounted at an angle. I've only seen that a couple of times before at car shows trying to cool a big ol' RAT!
The hoses IMO are a joke, there is no way you could get more air through the hood scoop than either the deckplate or elbow mod. To add, why did he cut his bug shield, I doubt that it made that much of a difference with the shield in-tact..
05-30-2003, 07:53 AM
#12
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Got the kids taking a final...Thought I'd check in.
We don't know his thoughts on the hood scoop or the fan. But looking at both of them brings home why we have this forum. It's great to bounce ideas off of each other and get feedback on whether those ideas are well based or not.
I agree that any gains from the hood scoop are minimal or in the guy's mind. The fan appears to be the same. At the angle it was at when I looked at it this morning, it would be impossible for it to draw any air through the radiator. In fact if it's blowing rather than sucking, it could impede the airflow.
We don't know his thoughts on the hood scoop or the fan. But looking at both of them brings home why we have this forum. It's great to bounce ideas off of each other and get feedback on whether those ideas are well based or not.
I agree that any gains from the hood scoop are minimal or in the guy's mind. The fan appears to be the same. At the angle it was at when I looked at it this morning, it would be impossible for it to draw any air through the radiator. In fact if it's blowing rather than sucking, it could impede the airflow.
05-30-2003, 08:05 AM
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The History Channel had a piece on the GTO a few weeks back. One of the early features was a hood scoop. The engineers talked about how, with the air flow over the hood, the scoop was useless...but it looked cool. If they REALLY wanted more air to the engine, an intake needs to go along the front edge of the car, or in our case truck.
I think the deckplate mod will get more air to the engine than this configuration.
I think the deckplate mod will get more air to the engine than this configuration.
05-31-2003, 03:36 AM
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hood scoops
Yeah, the area from about a 6 inches back from the leading edge of the hood is in a low pressure area, because of the air flow over the grill crown and then over the windshield . You'de need a tunnel ram to make any difference. But I've always been a sucker for the looks of a scoop
05-31-2003, 04:29 AM
#19
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Yeah, the area from about a 6 inches back from the leading edge of the hood is in a low pressure area, because of the air flow over the grill crown and then over the windshield .
05-31-2003, 11:18 PM
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Now that I consider it, I realize how common the e-fan is on transverse mounted engines. Given the apparent advantages, why wouldn 't 'Yota have made this a stock engine feature? And I've also thought about the A/C compressor...it doens't make difference that I can tell on my V6, but why not use an electric compressor on smaller engines?
