| Author | Message | ||
| James Selevan (Jselevan)
Junior Member Username: Jselevan Post Number: 79 Registered: 6-2002 |
Scott - I followed your lead and added the JC Witney foam to my TR. HOWEVER, this stuff is VERY heavy. I am concerned about the weight on the fiberglass lid and mounting points. In fact, I have noticed spider crackes in the paint at the mounting point. Is your stuff heavy? The struts can no longer hold the rear engine deck up!!! I am tempted to take it off, but dread the process of cleaning the spray glue from the under side of the lid. Is the weight of concern to you? Jim Selevan | ||
| Dima Efros (Defros)
New member Username: Defros Post Number: 10 Registered: 8-2001 |
Thanks Scott, it worked out great. | ||
| Michael N. (Man90tr)
Member Username: Man90tr Post Number: 607 Registered: 4-2001 |
Thanks Scott | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 69 Registered: 2-2002 |
Michael, I've done 3 TR's and they've all been slightly different. You have to remove 4 or 5 10mm nuts to remove the cover. 2 at the front edge, 2 at the rear edge, and 1 in the middle of the high mounted tailight. And dont forget to disconnect the high mounted tailight. It comes off quite easily after removing the screws. HTH Scott | ||
| Michael N. (Man90tr)
Member Username: Man90tr Post Number: 605 Registered: 4-2001 |
Scott, How do you take off the engine cover. is there a couple screws below the black louvers? Michael | ||
| Greg Whaley (Gwhaley)
New member Username: Gwhaley Post Number: 2 Registered: 7-2002 |
That pic without the engine cover looks nice. Hooper makes the rear window replacements... What about hitting him up to produce a clear engine cover with louvres? Any comments? Good evening all, Greg | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 65 Registered: 2-2002 |
Todays readings without the engine cover. Same basic conditions as yesterday. Air Temp - 91 and sunny Water Temp - ~190 (used the dash gauge) Front bumper - 103 Engine cover Top side - NA Engine cover botton - NA Intakes - 153 Heads - 190 Muffler - 362 Catalytic Converters - 474 Tires - 123 Bottom line is it doesnt appear to make any difference what's on the bottom of the engine cover, or if one is mounted at all, underhood temperatures are about the same. I have managed to give away the 2 extra pieces of foam that JC Whitney so thoughtfully provided. Scott  | ||
| Dr. George Petito (Doc18015)
New member Username: Doc18015 Post Number: 48 Registered: 12-2001 |
My thoughts are more directed to the factory set-up on the 360. It looks great and is probably well-designed. Other than losing points, I would prefer the plexiglass look! I am interested to hear your test results, Scott. | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 64 Registered: 2-2002 |
George, You got me thinking, so I went out and bought a non-contact pyrometer (Raytek MiniTemp) and took some readings. I drove the car for 1/2 hour in early afternoon traffic, and when I got home took the following temperature readings. Air Temp - 93 and sunny Water Temp - ~190 (used the dash gauge) Front bumper - 107 Engine cover Top side - 140 Engine cover botton - 145 Intakes - 150 Heads - 180 Muffler - 340 Catalytic Converters - 465 Tires - 134 I will take the engine cover off tonight, and try the same test tommorow without the cover mounted to see if the intake temperature goes down, but I doubt it will have much effect. Seems like heat soak from the block is the primary cause of heat at the intakes, but we will see. Scott | ||
| Dr. George Petito (Doc18015)
New member Username: Doc18015 Post Number: 46 Registered: 12-2001 |
My thoughts are that Ferrari placed the foam for sound deadening only. Foam allows the trapped heat to dissipate. Why add heat to the engine surface and surrounding wires, etc. The entire cover should be redesigned to emulate the 360 Modena. Let's replace the cover entirely with a plexiglass dome with air louvers...cool and engineered to the task! | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 62 Registered: 2-2002 |
Norm, Here was my thought process about reflecting the heat back to the engine. 1. Most of the rear decklid is screen so there is plenty of airflow and since heat rises, it tends to rise throught the screens into the atmosphere. 2. The hottest part of the whole engine bay is the precats/cats/muffler, and they arent anywhere near the middle of the engine bay where the mylar covered engine cover will have any effect. 3. I havent noticed my engine running any hotter than with the straight foam, and I'm in Southern California and its in the high 90's here now. I'd be happy to hear any other opinions from someone who has more experience with TR's than I do. Scott | ||
| Norm Plaistowe (Normp)
Junior Member Username: Normp Post Number: 71 Registered: 11-2001 |
I've been following this thread with some interest as I have one corner of my cover that's starting to look ratty. I concerned about mounting this mylar covered foam directly above the engine and bouncing all that heat back down at something that can keep a three car garage warm in a Chicago winter. Isn't it better to let the heat out through the cover and keep the engine cooler? | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 61 Registered: 2-2002 |
Glen, The mylar coating seems to reflect a lot of heat. I just finished helping my friend do his TR and when your mounting the foam in the sun you can feel the heat being bounced off onto your face. My engine cover doesnt even get really warm anymore. I have a deal for you. JC Whitney in their infinite wisdom sent me a second package of foam on Friday. When I called today, they said it was cheaper to have me keep it (for free) than to process a return. So I took the new foam, and cut it to size, and rough cut the openings. If you want 1 for the cost of shipping it to you, e-mail me. You'll have to buy the glue, but that's only $7.00 if I remember right. HTH Scott | ||
| Glen Mckenna (Johndillinger)
New member Username: Johndillinger Post Number: 11 Registered: 7-2002 |
Scott, apparently the original form didnt have the mylar reflective backing (my 90 doesnt) just wondering if there's any negatives with having that new foam installed... would like to replace mine because ive noticed an excessive amount of heat coming up thru the high mounted brake light (another thing they could have left off) | ||
| James Selevan (Jselevan)
Junior Member Username: Jselevan Post Number: 53 Registered: 6-2002 |
Scott - thanks - I did order the spray as well. Jim Selevan | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 60 Registered: 2-2002 |
James, Order the spray on contact cement also. It is heat resistant, and seems to be holding fine. After you fit the foam, take it off, turn it over and spray a heavy coat onto the backside of the foam. Let it set for a few seconds and then line it up and press it down onto the engine cover. I used a rolling pin (dont tell the wife) to make sure I had a good physical bond between foam and hatch. HTH Scott | ||
| James Selevan (Jselevan)
Junior Member Username: Jselevan Post Number: 52 Registered: 6-2002 |
Scott , Ben - I did not have insulation on my 1986 TR, but really like how it looks. It might help save the paint. I took Scott's advice and found the same material from JC Whitney on the web. I just ordered 1/2 inch, the larger size, as Scott suggested. I await its arrival. I'll follow Scott's installation instructions, and let you know. Jim Selevan | ||
| Arnaldo Torres (Caribe)
Member Username: Caribe Post Number: 376 Registered: 2-2001 |
Thanks for the information. | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 59 Registered: 2-2002 |
Analdo, Believe it or not JC Whitneys has it (bottom of page 42 of the catalog). I got the 1/2" variety, since the original is very close to 1/2 inch. They sell it in 2 sizes, the smaller of which is just a little too small for 1, while the larger piece has enough foam to make 2 of the engine covers. I removed the cover (4 10mm nuts), High mounted brake light (3 10mm nuts) and put it on a table upside down (laid down some cotton towels first to protect the paint) then laid the foam on the underside. I then used a single edge razor blade and a straight edge to cut the foam, and fit it. I used the spray contact adhesive they sell for mounting the foam and it worked great. Total cost was ~$40.00 for the foam and glue. HTH Scott | ||
| Arnaldo Torres (Caribe)
Member Username: Caribe Post Number: 371 Registered: 2-2001 |
Scott, it looks really good. Where did you find this foam? | ||
| Adam Goldman '86 TR (Icnsltmfg)
Member Username: Icnsltmfg Post Number: 368 Registered: 8-2001 |
You may get points off in the shows, but who cares, it looks great! | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 58 Registered: 2-2002 |
Well, Just finished the "foaming" of the TR. I think it looks better than the original brown foam. It certainly looks like it will hold up better. Heres the pic's Scott   | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 55 Registered: 2-2002 |
Found some 1/2 foam with mylar heat resistant facing for $35.00. Will fit and give it a try before buying the factory foam for $156.00. If it looks good, I'll post a picture. Thanks Scott | ||
| Ben Lobenstein 90 TR (Benjet)
Member Username: Benjet Post Number: 691 Registered: 1-2001 |
Many TR's I've seen have them missing or removed. I've heard all kinds of goofy stuff about them - like they are there for "fire protection" in case your engine lites up...yeah right. -Ben | ||
| Michael N. (Man90tr)
Member Username: Man90tr Post Number: 548 Registered: 4-2001 |
I just replaced mine and it does reduce sound a bit and reduces vibration around the heat shield. I noticed the heat shield shaking more with it out. Your price is right on for the replacement. | ||
| Scott Grossman (Sngsmgaolcom)
Junior Member Username: Sngsmgaolcom Post Number: 52 Registered: 2-2002 |
Well the foam on the underside of the engine cover finally started to break off, so I removed the cover and took off the rest of the foam. I can order a new foam part for $156.00, but I was wondering if there were any other options. The Spare Parts Catalogue says the part is sound deading foam, but is that its only function or does it work as a heat shield also? Any input would be appreciated. I also found out that the front mounting bracket was broken at the inside mounting holes, so its off to the TIG welders to get the bracket fixed up. TIA Scott |