 Lower heat shield question |
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| technicalninja |
 Dec 9 2023, 02:28 PM
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Advanced Member  Group: Members Posts: 2,531 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
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I've got the beginnings of a performance T4.
I bought a decent 73 2.0 core complete from 914Sixer. I got a set of 1.8 SSI aftermarket heat exchangers from another member that are also pretty nice. What I am missing is the bottom tins that go between the heat exchangers and the engine case. Anytime folks put dedicated headers on a T4 these are left off... How important are they? I'm thinking "not much" but I would like insight from others. Thanks Rick |
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| wonkipop |
Dec 9 2023, 02:51 PM
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Advanced Member Group: Members Posts: 4,757 Joined: 6-May 20 From: north antarctica Member No.: 24,231 Region Association: NineFourteenerVille
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QUOTE(technicalninja @ Dec 9 2023, 02:28 PM)  I've got the beginnings of a performance T4. I bought a decent 73 2.0 core complete from 914Sixer. I got a set of 1.8 SSI aftermarket heat exchangers from another member that are also pretty nice. What I am missing is the bottom tins that go between the heat exchangers and the engine case. Anytime folks put dedicated headers on a T4 these are left off... How important are they? I'm thinking "not much" but I would like insight from others. Thanks Rick i don't run them on mine - have not had them for 35 years at least. went missing when SS heat exchangers went on back in 80s. they are there to "try" and direct the exhausted cooling air out the back of car. stop it pooling under car (and in particular the area where the fuel pump is). instead with the guides it pools under the trunk and around the gearbox. this only happens when the car is sitting still in traffic idling. the rest of the time that air gets pulled out when the car is on the move, guides or no guides. they save the speedo and clutch cables from frying. i have mine wrapped in a foil insulation. as far as i am concerned with the guides you are just frying the same cables further back along their length. the important tins are the ones higher up and curved around the cylinder fins like splitters. the 914 has an inbuilt problem. called mid engined. standard VWs don't. the lower guides do something on a VW because that exhausted cooling air gets squirted straight out the back of the car. so long as you have good sealing around the engine bay tin apron the lower guides are not in my opinion necessary. others will say they are. |
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Posts in this topic
technicalninja Lower heat shield question Dec 9 2023, 02:28 PM
Geezer914 Check a Haynes manual for diagrams of the engine t... Dec 9 2023, 02:43 PM 914werke so long as you have good sealing around the engin... Dec 9 2023, 02:58 PM
wonkipop
[quote name='wonkipop' post='3116982' date='Dec 9... Dec 9 2023, 03:24 PM rhodyguy They really stiffen up/help support the heat excha... Dec 9 2023, 03:36 PM wonkipop
They really stiffen up/help support the heat exch... Dec 9 2023, 03:57 PM 87m491
maybe.
but the heat exchangers are hung at both... Dec 11 2023, 04:17 PM technicalninja Awesome replies!
Already altered my thought p... Dec 9 2023, 04:11 PM wonkipop
Awesome replies!
Already altered my thought ... Dec 9 2023, 09:13 PM 87m491 [quote name='wonkipop' date='Dec 9 202... Dec 10 2023, 08:35 AM wonkipop
[quote name='wonkipop' date='Dec 9 20... Dec 11 2023, 03:33 PM rhodyguy Don’t sit idling in the drive thru at the burger... Dec 9 2023, 05:06 PM 930cabman I don't run them on my 2056, never overheats.
... Dec 9 2023, 05:52 PM rhodyguy What’s the upside to not using them? A few bucks... Dec 9 2023, 05:59 PM wonkipop
What’s the upside to not using them? A few buck... Dec 9 2023, 09:00 PM rhodyguy How did 912s become part of the conversation? The ... Dec 11 2023, 03:41 PM wonkipop
How did 912s become part of the conversation? The... Dec 11 2023, 03:49 PM rhodyguy I don’t think the exhaust systems have much in c... Dec 11 2023, 03:56 PM wonkipop
I don’t think the exhaust systems have much in ... Dec 11 2023, 04:02 PM wonkipop
I don’t think the exhaust systems have much in ... Dec 11 2023, 04:17 PM 914work Apples to dump trucks!
The pictures provided a... Dec 11 2023, 10:43 PM VaccaRabite I've never had them on my car.
In 2010 I was ... Dec 12 2023, 08:54 AM |
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