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heat soak issue.

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Old Jul 11, 2006 | 06:54 PM
  #1  
TraviZ's Avatar
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
heat soak issue.

as shown in my blurry photo i took a while back, i have noticed over the last few months since i got this engine running that its getting quite hot right above the throttle body, enough to discolor the clamp and melt, eventually breaking the rubber intake tube. anyone have any tips what I can start doing ? the guage never reads over 180, 190 on track days when im staged .
Attached Thumbnails heat soak issue.-cid__06-27-06_1946.jpg  
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Old Jul 11, 2006 | 07:04 PM
  #2  
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From: Palm Bay, Florida, USA
Car: 95 E-150 & 07 Kawasaki ZX-6R
Engine: A slow one & a fast one
Transmission: A bad one & a good one
Axle/Gears: A weak one & a chained one
You still have the coolant flowing to the TB? If you do, bypass it, for some reason it must be overheating the TB. No reason for the TB to get that hot unless it's getting some kind of direct heat source, like the OE coolant lines.
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Old Jul 11, 2006 | 08:14 PM
  #3  
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From: Arab, Alabama
Car: 1988 Trans Am GTA
Engine: 350 4BBL
Transmission: 700R4
Axle/Gears: 3.27
Need a better picture. Coolant will not melt this part. It looks to me as if the hood is interfering with the TB and cut thru the hose as the engine moves upward. Just my
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Old Jul 11, 2006 | 08:26 PM
  #4  
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From: Woodland, CA
Car: '02 Z06
Engine: L33 5.7
Transmission: T56
Axle/Gears: Stock IRS
i do believe the hood is resting on that part perhaps. its not cutting though its a seration from heat. starting out with that melted look and eventually tore like shown, sorry for the bad picture, where its ripped is the lip of the throttle body on top. i do not have coolant running through the throttle body and i do run es mounts, with the stealth ram.

the whole intake maninfold is way too hot to the touch once the engine warms up. i cannot figure out why, my last engine build did not do this and it was quite nice.
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Old Jul 11, 2006 | 08:46 PM
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From: Philly, PA
The fact that the first row of "bellows" is also pushed forward and flattened says you're definitely leaning it against the underside of the hood. The "Play Doh" test could put this theory to bed real quick.

There is absolutely no source of heat in that vicinity anywhere near hot enough to melt the factory intake bellows. Coolant won't do it. General underhood heat won't do it. It would required direct heat from an exhaust manifold or similar. I assume the engine coolant temp is running at a "sane" temperature, no overheating or other obvious weirdness. I also assume you're pulling air from a reasonably cool source (factory filter box) and not from right next to an exhaust tube.
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