I just purchased the magnus heat barrier intake manifold gasket for my 2nd gen gst. Its made of a hard plastic. I have heard that people are having trouble with them leaking. Some say that they use a stock gasket on the head then the magnus gasket, some said they just used the magnus gasket and some said they used a OEM gasket/magnus gasket/then another OEM gasket. Some have used RVT sealant with it. How is this thing supposed to be installed? Do I just use the heat barrier gasket by itself?
Anyone using magnus intake manifold gasket?
spyder79
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I just purchased the magnus heat barrier intake manifold gasket for my 2nd gen gst. Its made of a hard plastic. I have heard that people are having trouble with them leaking. Some say that they use a stock gasket on the head then the magnus gasket, some said they just used the magnus gasket and some said they used a OEM gasket/magnus gasket/then another OEM gasket. Some have used RVT sealant with it. How is this thing supposed to be installed? Do I just use the heat barrier gasket by itself?
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1,151 Posts
I used one for a 2G head, and was not impressed.
The thin area deformed badly causing pressure leakage. And the area around the EGR port completely melted and blew out from using antilag a couple times. I'm back to using the steel OEM gasket without issues.
http://www.dsmtuners.com/forums/bolt-tech/332412-anti-lag-magnus-heat-barrier-gasket.html
The thin area deformed badly causing pressure leakage. And the area around the EGR port completely melted and blew out from using antilag a couple times. I'm back to using the steel OEM gasket without issues.
http://www.dsmtuners.com/forums/bolt-tech/332412-anti-lag-magnus-heat-barrier-gasket.html
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6,035 Posts
Plastic never melted on mine, 1g though I'm using a 1g head on 6bolt, mine was from SBR but is the same thing as the magnus one.
I used blue rtv on both sides of the gasket when I installed it. Works perfectly and keeps the I/M cool enough to touch.
I know asmo is using one too but am not sure if he did anything differently.
A fellow I was helping sandwiched the magnus heat spacer between two I/M gaskets , that was unnessary, blue rtv was enough for me.
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I tried two different heat barrier gaskets too. The first one was deformed so badly when I removed it for the first time, I decided to replace it. And after removing the second one due to blowing out around the EGR port, I noticed it was badly deformed around the runners just like the first one. It's just too soft for it's thickness. So, I decided it was best to give up on using them, and to just go back to the tried and true OEM gasket.
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That is ashame, I wonder is that is just a 2g thing because the 1g style one is great. It has held over 30psi on 1st through 5th gear pulls for me. Maybe I have just been lucky or maybe the SBR version is thicker. I also have the egr blocked off.
Yes, Dsm/EcmLinks version of it, the 2 step/No lift to shift.
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1,151 Posts
Blocking off the EGR is of no concern because that area is after the gasket. The only way to effectively protect the gasket from high exhaust temps is to block off the port in the head (before the gasket).
Also, 2-step and NLTS are completely different than anti-lag.
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Well I don't think that is a 2g thing, I think it is an antilag/egr problem. Ive ran mine on my 2g for over a year without problems. I do however have the egr delete.
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I know it's old, but no sense in starting another for the same thing. I too think I had a fail..... I think mine might be EGR. I am thinking the difference is SMIM or stock.... I have SMIM and that means the EGR Port can go no where but the plastic, therfore warping it, making it leak...... If you have a stock mani the heat can at least go into the mani a lil, blocked or not.
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I am still using mine, what I thought was a mishap due to my EGR was nothing, and it still seals awesome and no issues, after about 6yrs.
I actually took it off ones and went just paper, a boost pressure test to 30psi blew the paper out, I put it back on, no issues.
I actually took it off ones and went just paper, a boost pressure test to 30psi blew the paper out, I put it back on, no issues.
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