Ram Air, combustion air roof scoop and air boxes |
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Ram Air, combustion air roof scoop and air boxes |
timmck69 |
Jun 14 2003, 04:23 PM
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#1
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Newbie Group: Members Posts: 4 Joined: 13-June 03 From: madison, wi Member No.: 817 |
Looking for advise on creating air boxes fed from a duct on the roof. My car is a GT4R PCA race car( 2.8 liter) I have seen a few limited pictures of this on other 914 race cars and would like to talk to venders and/or customers who have been through this.
Thanks |
URY914 |
Jun 14 2003, 04:28 PM
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#2
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I built the lightest 914 in the history of mankind. Group: Members Posts: 123,027 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
you mean something like this...
Attached thumbnail(s) |
Andyrew |
Jun 14 2003, 05:11 PM
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#3
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
Ouch! actually I think Ive seen this car before, looked nice before.. and I think that that kind of ram air would be most efficiant.
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efrenv |
Jun 14 2003, 05:32 PM
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#4
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Newbie Group: Members Posts: 35 Joined: 11-February 03 From: Claremont, California Member No.: 297 |
No. 13 ... bad luck ... (IMG:style_emoticons/default/sad.gif)
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TimT |
Jun 14 2003, 05:39 PM
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#5
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Thats my friends car, Tony N, the car and trailer are for sale now (the car has been fixed obviously) The scoop is sheetmeatl, the airbox is lucite/lexan/plexiglass, something like that. In the airbox are 2 k&N filters and a fabricated plenum over the throttle bodies.
Tony now races mini coopers in Grand am and ALMS |
Qarl |
Jun 14 2003, 05:43 PM
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#6
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Shriveled member Group: Benefactors Posts: 5,233 Joined: 8-February 03 From: Florida Member No.: 271 Region Association: None |
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URY914 |
Jun 14 2003, 05:44 PM
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#7
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I built the lightest 914 in the history of mankind. Group: Members Posts: 123,027 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
This was taken at Sebring PCA race. It never seemed to run too good.
I personlly don't think this kind of scoop did anything to improve performance. It did not provide pressured air to the engine as far is I can see. Not when it had to go those two filters. Paul |
timmck69 |
Jun 14 2003, 10:31 PM
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#8
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Newbie Group: Members Posts: 4 Joined: 13-June 03 From: madison, wi Member No.: 817 |
I've seen Tony's car and thats the general idea but the scoop need to be more like the GT1.
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timmck69 |
Jun 14 2003, 10:37 PM
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#9
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Newbie Group: Members Posts: 4 Joined: 13-June 03 From: madison, wi Member No.: 817 |
When running my 2.8 at higher rpm we feel that there are two problems with air flow over the roof. 1. The air tumbles and is warmer than ambient. 2. there isn't enough volumn. The ram air may or may not be an added benefit.
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Brad Roberts |
Jun 15 2003, 01:43 AM
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#10
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Tim,
Your friends with Tony Nuzzo ?? I'm freinds with the guy he sold his Boxster to in Arizona. Roger Sheridan runs the cleanest setup I have seen for a top mounted system. He runs two NACA ducts in the top with 2 3 inch hoses leading straight to some custom air boxes he built for the 52mm TWM. He has a small (almost undetectable) scoop on the targa skin. I'll get pics.. B |
TimT |
Jun 15 2003, 09:38 AM
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#11
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retired Group: Members Posts: 4,033 Joined: 18-February 03 From: Wantagh, NY Member No.: 313 |
Brad I know Tony through the local chapter of the PCA, He used to be pretty active with DE and club racing, the he started his own ALMS or grand am team racing the new mini coopers, prepared by Bodymotion in south jersey.
I though he sold the boxter to the guys from EBS? |
timmck69 |
Jun 18 2003, 05:17 PM
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#12
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Newbie Group: Members Posts: 4 Joined: 13-June 03 From: madison, wi Member No.: 817 |
Does anyone know Tom Gonzales from Santa Fe NM. I saw a picture in a club racing magazine of his car and it may have what I am looking for.
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cha914 |
Jun 19 2003, 07:31 AM
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#13
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MUSR 8 - 5lug conversion done wed - drive 500miles thrus Group: Members Posts: 739 Joined: 31-December 02 From: Austin, TX Member No.: 63 |
QUOTE Roger Sheridan runs the cleanest setup I have seen for a top mounted system. He runs two NACA ducts in the top with 2 3 inch hoses leading straight to some custom air boxes he built for the 52mm TWM. I was thinking it would be cool to do something similar except instead of NACA ducts in the roof, doing them in the sail panels. However what is the airflow situation over the sail panels? I am guessing not nearly as good as the roof...anyone know? Tony |
brant |
Jun 19 2003, 08:08 AM
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#14
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914 Wizard Group: Members Posts: 11,739 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains |
I know tom gonzales... but I don't have any pictures.
A number of the grand junction cars run a ram air also. Allen Johnsen builds them to pick up off of the roof (I think NACA ducts) and then square clear plexiglass tubes that feed down to each side of throttle bodies. go to the PCA national club link site. Look for the pueblo/vegas/GPR/and some of the California event pictures. You might see some shots. brant |
Dave_Darling |
Jun 20 2003, 12:14 PM
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#15
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914 Idiot Group: Members Posts: 15,048 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
John Rogers in Sandy Eggo runs a small inverted wing all the way across the back of his roof panel. It sticks up only an inch or so, and curves down across the rear side of the roof. Pretty much just shoves air down toward the engine lid grilles.
He said it was one of the best cooling system mods that he made; getting cool air into the engine bay. Not sure if it did anything for power or not. --DD |
seanery |
Jun 20 2003, 12:18 PM
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#16
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
If it helps the longevity, I think that's probably good enough, huh? (IMG:style_emoticons/default/confused24.gif)
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URY914 |
Jun 20 2003, 12:27 PM
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#17
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I built the lightest 914 in the history of mankind. Group: Members Posts: 123,027 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Why don't more 914 race drivers just run without the engine cover on? OK, maybe you need it for tech, but if you took it off for a race would anyone protest you or would you really get black flagged?
I don't use one on my autox car but I realize the rules are different. Paul |
Brad Roberts |
Jun 20 2003, 02:32 PM
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#18
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
Intresting tidbit:
My tube car wouldnt pass sound at Laguna. We taped off the engine lid..and it got WORSE. When we removed the engine lid.. the sound went down and we passed. We run without the engine lid if need be. SCCA is the only group worried about the cars being "complete". Here is what Roger Sheridan runs. |
Brad Roberts |
Jun 20 2003, 02:35 PM
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#19
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
And the inside. Roger noted significant gains in power. This is the CLEANEST install I have seen. It is very "undectable" from the outside. I hate the add on crap that looks like its from PEP BOYS.
B |
seanery |
Jun 20 2003, 03:34 PM
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#20
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waiting to rebuild whitey! Group: Retired Admin Posts: 15,854 Joined: 7-January 03 From: Indy Member No.: 100 Region Association: None |
damn, he's hardcore...no padding on the cf seat!
That can't be comfy!!! Did he make that seat? |
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