PERRIN EVO X FMIC Project
Jul 23, 2008, 03:31 PM
#47
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Its a project that is now on its 3rd rev. So far things are going great and we have a final version we are testing and will have hard data on soon. Currently the surface temps on the turbo have dropped more than 400 degrees! So we have made great progress and the part we will offer looks very cool! Literally!
Jul 24, 2008, 07:26 AM
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Jul 25, 2008, 10:32 AM
#52
It's more of what looks like a turbo bag, except that it's for the header. These opperate on the principal of insultating the heat and preventing it from escaping, which in this case keeps it away from the turbo. Theoretically this helps turbo spool as well by minimizing heat transfer of the runners, which will keep air velocity through the pipes higher. I am very iterested in buying one of these, although I am curiousif the chimney scoop from the naca duct can still be used. Perrin, I am really impressed with you guys for doing so much R&D for this car, it really is going to benefit the X community. Thanks, and hurry up damnit, I want one!
Jul 25, 2008, 11:29 AM
#53
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Actually the cover is shielding the Compressor cover of the turbo. This is what keeps it cooler.
It's more of what looks like a turbo bag, except that it's for the header. These opperate on the principal of insultating the heat and preventing it from escaping, which in this case keeps it away from the turbo. Theoretically this helps turbo spool as well by minimizing heat transfer of the runners, which will keep air velocity through the pipes higher. I am very iterested in buying one of these, although I am curiousif the chimney scoop from the naca duct can still be used. Perrin, I am really impressed with you guys for doing so much R&D for this car, it really is going to benefit the X community. Thanks, and hurry up damnit, I want one!
One side note. This project has made us look at the 8/9 and while its not as big of a deal it is still a concern. We have not done the outlet temps on these but we will also being exploring the 8/9 turbo sheild. Keep an eye out!
Jul 25, 2008, 12:04 PM
#54
Awesome! As far as the chimney scoop portion of the heat shielding is concerned, I was wondering more if it can be used in conjunction with the header bag that you guys are making so that it will help circulate some air around that portion of the engine bay. It seems like it would still be beneficial to keep that in place. That way when the car is at speed it would cool off the top of the bag and help keep everything that much cooler.
Plus I want to feel like my naca duct is still doing something.
If not then it reminds me of the hood scoop on an STi with a front mount... seems silly at that point. Either way, looks great and I can't wait to get one. Ooh, I almost forgot... will it be offered in different colors? Red would look pretty cool, stealth black is always nice too...
Plus I want to feel like my naca duct is still doing something.
If not then it reminds me of the hood scoop on an STi with a front mount... seems silly at that point. Either way, looks great and I can't wait to get one. Ooh, I almost forgot... will it be offered in different colors? Red would look pretty cool, stealth black is always nice too...
Jul 27, 2008, 07:20 AM
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Some performance/output numbers with and w/o heat shed would be nice to document the effect of the 400 degree F reduction. Thanks.
Later, Ken
AMS intake
AMS Cat back
Iveytune (320 all the way around)
Later, Ken
AMS intake
AMS Cat back
Iveytune (320 all the way around)
Jul 29, 2008, 07:39 AM
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Numbers will follow soon. I have some really good numbers on the street and so far things are looking great! The charge temp reduction is huge and this was on a 85 degree day!
Jul 29, 2008, 10:28 AM
#58
Jeff, everything looks great and I'm following this thread very closely. One thing that I'm very curious about is if this could overheat the header and causea crack. Is this something to worry about, or would that only be an issue with a tubular design. Would it even be an issue with a tubular design?
Jul 29, 2008, 10:45 AM
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Nope, overheating will not be a problem its beefy cast iron and its just like header wrap on your header but safer. I say safer because the header wrap really hold heat ON the part, were ours provides at least some air gap around the header. I hope that makes sense.