Exhaust wrap/downpipe
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09-18-09, 05:20 PM
#8
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It will definately keep the engine bay allot cooler, I don't think it will affect the downpipe as much...just spray on this sealer that comes with the wrap to keep out the moisture.
I double-wrapped my DP, use water for better "scretching" effect and prevents the fibers going airborne and into your lungs. Then let it dry out before spraying it with the recommended sealer
09-18-09, 05:25 PM
#9
If you answer no then yes, you will have accelerated rusting.
My steel downpipe was wrapped and it literally fell off in pieces after 3 years of daily driving. I didn't use the moisture barrier spray and I live in a humid climate.
09-19-09, 01:20 AM
#10
I wrapped my M2 mild steel DP for the time first about 5 years ago. When I removed it two years ago to rebuild the engine, there was some pitting, but nothing dramatic that threatened the integrity. I sanded it down and painted it with the DEI silicone sealant...good to 1500 F. IIRC. Then I re-wrapped it and sealed it again with the DEI spray. Do that and you don't have the very valid "itch" issues that degeesaman mentioned when working next to it. And it insulates well enough that by the time I run my car up on the lift, I can grab the DP with my bare hands. IIRC, the DEI instuctions recommend soaking it in water. Never tried that, but it might help if your doing it with the DP on the car. IMO save your money on the DEI wrap ties and just get some good quality stainless worm-gear clamps. At the ends, I folded the strip of wrap into a point and centered the point under the clamp for a clean, no fray end.
BTW, the DEI spray worked well on the turbo heatshielding too. Did it while everything was off for the rebuild. With a little sanding pad and rinse, it's stuck VERY well and covered all the rust pitting that comes with time......
BTW, the DEI spray worked well on the turbo heatshielding too. Did it while everything was off for the rebuild. With a little sanding pad and rinse, it's stuck VERY well and covered all the rust pitting that comes with time......
09-21-09, 05:40 AM
#14
He's talking about the corrosive effects of exhaust gases on the downpipe. Few owners drive an FD in the snow anyway, and I'm not seeing weather effecting much of anything anyway.
There's been a mild steel downpipe on my car for at least eight years. In reality, probably shortly after it came off warranty around Feb. 1994. And there's been no discernible errosion.
There's been a mild steel downpipe on my car for at least eight years. In reality, probably shortly after it came off warranty around Feb. 1994. And there's been no discernible errosion.
09-21-09, 02:37 PM
#17
It will definately keep the engine bay allot cooler, I don't think it will affect the downpipe as much...just spray on this sealer that comes with the wrap to keep out the moisture.
I double-wrapped my DP, use water for better "scretching" effect and prevents the fibers going airborne and into your lungs. Then let it dry out before spraying it with the recommended sealer
I double-wrapped my DP, use water for better "scretching" effect and prevents the fibers going airborne and into your lungs. Then let it dry out before spraying it with the recommended sealer
just want to order dei titatium exhaust wrap,
SO ,wrapping the downpipe will lower my intake charge temperature?
09-21-09, 03:50 PM
#18
Probably not noticably. That's what your intercooler is for.
It will lower underhood temps, and over time reduce the effect of those high temperatures on all the underhood components...solenoids, check-valves, hoses, plastics etc.
And I also found that it reduced the radiant heat to the tunnel under the car.
HKS is typically designed to fit around the steering shaft of RHD models. It will fit just fine on LHD, but if I had a choice, I'd try to find one made for it. Stainless is nice, but typically costs more. Unless abused/neglected somehow, you'll probably never wear out a mild steel Downpipe so get whichever is priced easiest for you. If it's mild steel, paint it with DEI sealant/paint and wrap away.
It will lower underhood temps, and over time reduce the effect of those high temperatures on all the underhood components...solenoids, check-valves, hoses, plastics etc.
And I also found that it reduced the radiant heat to the tunnel under the car.
HKS is typically designed to fit around the steering shaft of RHD models. It will fit just fine on LHD, but if I had a choice, I'd try to find one made for it. Stainless is nice, but typically costs more. Unless abused/neglected somehow, you'll probably never wear out a mild steel Downpipe so get whichever is priced easiest for you. If it's mild steel, paint it with DEI sealant/paint and wrap away.
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