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Re: going to get a turbo blanket wh size is the 9-3,9-5 turbo a T4 ? Posted by neil dale [Email]  (#2111)  [Profile/Gallery]
(more from neil dale) on Wed, 3 May 2017 15:22:33
In Reply to: Re: going to get a turbo blanket wh size is the 9-3,9-5 turbo a T4 ?, Dean, Wed, 3 May 2017 10:47:32 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Yea that's what they thought. (that wrapping would cause cracking ) I don't think it's true. I have wrapped turbos and exhausts on cars and motorcycles for years w/ no apparent ill effects!( another rumor was it "would cause pipes to corrode" --uh, it DIDN'T) Recently the price of the turbo covers, ready-made as opposed to make it yourself have become cheap ( the manufacturers in china have discovered they can sell them directly themselves on e-bay etc as opposed to marketing thru an American co. ) and at a fraction of the marked up price! the theory is that by not allowing the heat energy to be "convected " wasted outward you will preserve more heat energy that will be used to spin the turbo faster =more exhaust gas energy =.(Hence, more HP- tho the gains would be minimal ) Yamaha said it was a 1-2 % gain Wrapping will make the components actually MORE thermally stable( hell they're going to get hotter than crap anyway eh ?) and therefore LESS prone to fracture. shock cooling is a serious issue in aircraft engines. we only wrap, cover the hot side. It makes a substantial difference in underhood temperatures(s)and helps all the plastic parts last longer ( an issue as SAAB parts become more scarce. Heat soak is brutal in the desert- ambient temperatures are already frequently over 100 deg F HEAT is the ENEMY! PS the proprietary process "jet hot " coating works well too (done inside and outside a pipe or manifold ) but woah howdy! it's NOT cheap! PSS all the hoses , wires I had covered w/ the heat-proofing materials fr DEI inc & Thermotec were unharmed when the rad fan resistor shorted out and we had a underhood fire in my wife's 99'9-3 se cv (melted half the battery ! ) top rad hose finally melted (wasn't covered ) and put out the fire just as fire dept arrived =the saab fire suppression system ! regards, Neil
->Posting last edited on Fri, 5 May 2017 10:55:46.
_______________________________________ viggen02
, Tue, 2 May 2017 16:17:45, Wed, 3 May 2017 15:22:33 <-- Viewing This Message
, Wed, 3 May 2017 05:35:14
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