2.7 6 without engine tin always cool? |
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2.7 6 without engine tin always cool? |
RickS |
Jun 22 2017, 10:57 PM
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#1
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Senior Member Group: Members Posts: 1,408 Joined: 17-April 06 From: 'False City', WA Member No.: 5,880 Region Association: None |
Think this guy may be fulla BS but had a 2.7 with no tin and claimed no matter how hard he ran it, the temp never topped 210. Had no front mounted cooler, just the engine mount cooler.
So is he full of it, or are the rest of us stoopid? (No Rick, you be the stoopid one for not calling his BS) |
Dave_Darling |
Jun 22 2017, 11:25 PM
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#2
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Either full of it, or he's not measuring the right thing...
--DD |
Kansas 914 |
Jun 23 2017, 06:37 AM
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#3
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Advanced Member Group: Members Posts: 2,999 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains |
Either full of it, or he's not measuring the right thing... --DD (IMG:style_emoticons/default/agree.gif) Something isn't right. If it was true I would be pulling the tin off of my 2.7L as it gets to 220 on long hill climbs. |
mepstein |
Jun 23 2017, 07:07 AM
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#4
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914-6 GT in waiting Group: Members Posts: 19,238 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
A lot of race cars don't use tin but hard to keep a street engine cool.
http://www.914world.com/bbs2/index.php?sho...p;hl=Engine+tin |
Jeff Hail |
Jun 23 2017, 07:34 AM
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#5
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Senior Member Group: Members Posts: 1,141 Joined: 3-May 07 From: LA/ CA Member No.: 7,712 |
I've seen quite a few 914 track cars with no tins or engine shelves. Shrouding and cylinder dividing tins only. The 914 engine compartment is far larger than a 911 and also has a larger source of intake air. The biggest drawback is dirt and dust collection above the cylinders which will accumulate on the cooling fins. Forced air in the front top of the engine and exhausted out the bottom and everywhere else for that matter.
I ran this question past a couple of people a few years ago. Dave from TRE and also Mac Tilton. Both agreed on the dirty air issue but history proves it isn't really an problem on a mid engine car. Look at all the old mid engine Porsche race cars which had nothing except shrouded fans. Those cars had way more heat going on than a street car. 911's on the other hand are very different. Air is brought into the engine compartment from the tail of the car then forced through the engine and pushed out the bottom. If the guy with the 2.7 is in a 911 I would call borderline BS unless he has removed the decklid. If its in a 914 I would not. My build was based on low weight so shelves and tins are removed which was based on research. |
Dave_Darling |
Jun 23 2017, 09:29 AM
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#6
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Race cars do not idle at stop lights. They do not run for long periods of time with their fans turning low speeds. They do not re-ingest air that is warmed up already, because that air is already about 15 miles behind them. Many racing 914s without all of the engine tin also have direct high-pressure cold air ducted directly to the fan inlet. Most of us with street cars do not want a "sewer pipe" running through the cockpit...
Race engines get torn down often, especially the very high-performance ones. Race cars are not street cars. You have to be very very careful when applying things from one realm to the other. --DD |
porschetub |
Jun 23 2017, 02:06 PM
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#7
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Advanced Member Group: Members Posts: 4,697 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
I think that is stretching the truth a bit , 210 is hardly running cool.
Try being underneath the car with the engine running the amount hot air coming out is huge,no way the fan isn't sucking that up without engine tin. |
Elliot Cannon |
Jun 23 2017, 02:48 PM
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#8
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None |
Didn't Joe O'Brian's 3.6 not have cooling tin? (IMG:style_emoticons/default/smile.gif)
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Optimusglen |
Jun 23 2017, 09:21 PM
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#9
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Senior Member Group: Members Posts: 901 Joined: 26-February 16 From: Minneapolis Member No.: 19,709 Region Association: Upper MidWest |
Speaking of tins. Does anyone make a set of fiberglass tins for a 6 in a 914?
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Dtjaden |
Jun 24 2017, 12:00 AM
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#10
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Member Group: Members Posts: 232 Joined: 25-May 13 From: Morgan Hill, CA Member No.: 15,915 Region Association: Northern California |
Speaking of tins. Does anyone make a set of fiberglass tins for a 6 in a 914? Getty Design makes 914-6 engine "tin". http://www.gettydesign.com/914tailbases/91...ngine-shrouding |
pete-stevers |
Jun 24 2017, 06:11 AM
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#11
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saved from fire! Group: Members Posts: 2,641 Joined: 10-October 04 From: Abbotsford,BC, Canada Member No.: 2,914 Region Association: Pacific Northwest |
I recall Trekkor didn't run tins on his race car.... (IMG:style_emoticons/default/idea.gif)
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6freak |
Jun 24 2017, 06:47 AM
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#12
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MR.C Group: Members Posts: 4,740 Joined: 19-March 08 From: Tacoma WA Member No.: 8,829 Region Association: Pacific Northwest |
key word there Steve " race" car there always moving as fast, as mentioned above id think you be hard pressed to keep any street car engine cool with out the proper ducting and tins (IMG:style_emoticons/default/smile.gif) |
mb911 |
Jun 24 2017, 06:50 AM
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#13
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914 Guru Group: Members Posts: 6,810 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest |
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GeorgeRud |
Jun 24 2017, 07:43 AM
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#14
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Advanced Member Group: Members Posts: 3,725 Joined: 27-July 05 From: Chicagoland Member No.: 4,482 Region Association: Upper MidWest |
I always figured that Porsche wouldn't spend the money on things if they didn't have to, so I'd recommend both the tins and a front oil cooler. The lack of front coolers on the US bound 2.7s were probably contributing to the issues they had ( the European 2.7s did have front oil coolers, though just the rude entry trombones).
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IronHillRestorations |
Jun 24 2017, 09:31 AM
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#15
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I. I. R. C. Group: Members Posts: 6,714 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
I'd be concerned if the oil temps didn't get 210 or above.
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barefoot |
Jun 24 2017, 12:31 PM
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#16
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Senior Member Group: Members Posts: 1,269 Joined: 19-March 13 From: Charleston SC Member No.: 15,673 Region Association: South East States |
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SirAndy |
Jun 25 2017, 03:03 PM
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#17
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Resident German Group: Admin Posts: 41,606 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
You don't need no stinkin cooling tins: Just sitting there, not running? Sure, no tins required. Fire that thing up, go for a spin around the corner, get stuck in stop and go traffic and start counting your money for the engine rebuild you'll need after the engine seized. (IMG:style_emoticons/default/shades.gif) |
gms |
Jun 25 2017, 03:32 PM
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#18
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Advanced Member Group: Members Posts: 2,694 Joined: 12-March 04 From: Chicagoland Member No.: 1,785 Region Association: Upper MidWest |
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IronHillRestorations |
Jun 26 2017, 10:36 AM
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#19
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I. I. R. C. Group: Members Posts: 6,714 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None |
Those are cool Glennn!
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johnhora |
Jun 26 2017, 03:06 PM
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#20
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Senior Member Group: Members Posts: 866 Joined: 7-January 03 From: Derby City KY Member No.: 107 Region Association: None |
You don't need no stinkin cooling tins: Just sitting there, not running? Sure, no tins required. Fire that thing up, go for a spin around the corner, get stuck in stop and go traffic and start counting your money for the engine rebuild you'll need after the engine seized. (IMG:style_emoticons/default/shades.gif) 1/4 Mile Run Maybe (IMG:style_emoticons/default/smile.gif) |
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