Header wrap... again

[Reason]

I'm thinking about adding a 2nd layer of wrap. I still have the sewing machine sound. I think the tubing for the ebay header is thinner than the Borla header I had. So I may get a can of spray, give it a light coat (1 can worth or less) and wrap it again. Not sure how close it will be to my oil filter, but has anyone tried this before?

[ouch1011]

I don't know about double wrapping, but a single layer did a lot to reduce the noise on my OBX header. Its down to about the stock level of sewing machine noise :)

[99gtlimited]

Are you sure you don't have any leaks? I would check that first, I know when I wrapped my header it still had the ticking sound until I changed out the gasket between the header and catpipe and sealed it up with some red RTV.

double wrapping seems like it could help, but I would be weary of the lack of space you might have afterwards.

[Reason]

Yes I already fixed all the leaks. Space is my biggest concern if I put another layer on.

[nomad666666]

Why don't you try this http://www.thermalzero.com/store?page=s ... 7&TreeId=1 (http://www.thermalzero.com/store?page=shop.browse&category_id=7&TreeId=1)

[Reason]

I rather wrap it again

what is the noise youre talking about? i have a lot of front end noise it seams like but cant pinpoint the 'sewing machine'

[99gtlimited]

you have single ports though right shane? so I don't imagine the clearance issue would be as bad as trying to double wrap a dual port header.

[Reason]

Imagine the sound of stock unwrapped headers. Then I got the Borla single port header, the sound seem to be the same, MAYBE a slight increase in sound. Then I wrapped those headers and the sound was perfect. When I had all my engine work done one of the things I had done were head swaps to dual port exhaust.... ports. Well I wrapped those right away, now it kinda sounds like my Borla single ports unwrapped.

[HeresMyMind]

its not the headers. I wrapped mine and they were dead silent. it is either your valves, or a leak. OR a specific oil thickness is off. amsoil 10-30 makes my valves silent. and header wrap too. all i hear fom my engine is my intake or a very slight squeek from a belt here and there.

what did you end up with for your engine mods shane?

-B

[Reason]

I think the sound is coming from my intake. I have AMSoil 5w30 so that could be part of it too. PLUS theres a small part of my header exposed from the wrap. I think it's all playing a factor. So I'll correct 2 out of the 3 and go from there.

As for the mods I ended up going with were

-OBX Dual port UEL header (wrapped)
-Delta cam regrind
-NGK Iridium spark plugs
-Koyo Radiator
-TiC shifter pivot bushing
-Kartboyfront shifter bushings (TBI)
-Kartboy rear stay shifter bushing) (TBI)
-OEM Exedy clutch kit
-GRIMMSPEED thermal coated PnP 2.2L intake manifold
-GRIMMSPEED Intake manifold phenolic thermal spacers

The car is fun to drive. I think once the shifter bushings are in, I get the problems resolved from up top, get a new knock sensor and tune the car I will be happy. Then my attention will go back to suspension. I'm think about selling my current set up because I want something lower and more stiff....

[HeresMyMind]

well I wont tell you about my new car but lets just say i dropped it 3.5" and 2600$ was dumped into mods :-D

-B

i have ALOT of engine operating noise.. its kind of frustrating..

under med. acceleration i start to get a revolving 'rubbing paper together' type sound

sometimes after the rpms drop when i rev a bit.. i get a sound from somewhere that sounds like pebbles being dropped down a metal tube or a slide.. not as high pitched


so wtf? i may blow up spontaneously or what?

[chuckthefuk]

Double wrapping is not necessary. Also did you use the Silicon Spray to seal the wrap?

http://www.autotoys.com/pics/siliconespray1.jpg

??
-Chuck

[Airgne]

i have mine double wrapped in the area of my filter. also i put 4 cans on silicone header wrap spray on mine. the noise is way down. all i hear is the injectors and intake. have a aluminium skidplate helps as well.

[Reason]

Chuck no spray, but I will once I wrap the exposed area again. part of the short runner come undone. Also I was a 1qt short on oil....WTF!! So I topped it off with some 10w30 which helped. Now I want to do another oil change to have all AMSoil 10w30

[ouch1011]

i have ALOT of engine operating noise.. its kind of frustrating..

under med. acceleration i start to get a revolving 'rubbing paper together' type sound

sometimes after the rpms drop when i rev a bit.. i get a sound from somewhere that sounds like pebbles being dropped down a metal tube or a slide.. not as high pitched


so wtf? i may blow up spontaneously or what?

That sounds very much like an exhaust leak.

Best way to find exhaust leaks is to look for black streaks.

[Reason]

Or block your tail pipe and have someone look and listen