Professional Products Intake Manifold
Originally Posted by kenkaru
That's what I"m thinking especially with the 85mm throttle body. That's why I'm ordering the combo this afternoon. 
Originally Posted by 00'WS6Rocket
ALRIGHT !!!!!! It's about bloody damn time 
Hmmm... are we jumping the gun on this one?? Or are you replacing it regardless
Hmmm... are we jumping the gun on this one?? Or are you replacing it regardless
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Brett Foote
TECH Enthusiast
Joined: Jul 2002
Posts: 653
Likes: 0
From: Mannheim, Germany
My main motivation for placing my order for one these vs an LS6 is the fact that you can get a 85mm TB and intake combo so inexpensive. If you checked out that TPIS dyno comparison a little while back, the TB has a major impact on the gains you'll see from an intake. SO while a Prof Prod intake might only be a few horses more than an LS6, an 85mm prof prod. combo is going to make significantly more power.
It's like a mid point between ls6 and FAST.
It's like a mid point between ls6 and FAST.
TECH Fanatic
Joined: May 2004
Posts: 1,030
Likes: 0
From: Wichita KS
this could definetly be an awesome new item for the LS1 aftermarket, if indeed takes a place in-between the FAST and the LS6. Personally I am not worried about heat-soak, and if the performance is equal or higher to an LS6, its what i will get.
Another point i don't often see made is that if anyone here data logs, then they would notice that on an average to hot day (outside temp) the IAT (intake air temp) is usaully close 100 degrees. I don't see how having an Intake that is not significantly warmer will have a huge effect on hp if the air is already that hot. I don't think the intake is going to be much hotter than that especially if your fan settings are adujusted to keep ECT temps under 190 and keep air moving across the engine bay at all times.
Also this may help with driveability during the colder winter months. An intake that is faster to warm up may help bring the car up to operating temp slightly faster, and therefore cut back slightly on the added fuel cost that cold driving brings...
Another point i don't often see made is that if anyone here data logs, then they would notice that on an average to hot day (outside temp) the IAT (intake air temp) is usaully close 100 degrees. I don't see how having an Intake that is not significantly warmer will have a huge effect on hp if the air is already that hot. I don't think the intake is going to be much hotter than that especially if your fan settings are adujusted to keep ECT temps under 190 and keep air moving across the engine bay at all times.
Also this may help with driveability during the colder winter months. An intake that is faster to warm up may help bring the car up to operating temp slightly faster, and therefore cut back slightly on the added fuel cost that cold driving brings...
I don't think so. The 96mm definitely would be I think unless you are spinning some crazy RPMs. The more I think about it, the more I am leaning towards the 85mm version myself once I see some results and a throttle body.
TECH Enthusiast
Joined: Jul 2002
Posts: 653
Likes: 0
From: Mannheim, Germany
Originally Posted by DuronClocker
I don't think so. The 96mm definitely would be I think unless you are spinning some crazy RPMs. The more I think about it, the more I am leaning towards the 85mm version myself once I see some results and a throttle body.
According to this, it looks like the LS6 out-performs the Weiand.
http://www.tpis.com/plog/index.php?o...Id=14&blogId=1
http://www.tpis.com/plog/index.php?o...Id=14&blogId=1
TECH Enthusiast
Joined: Jul 2002
Posts: 653
Likes: 0
From: Mannheim, Germany
Originally Posted by Louie83
According to this, it looks like the LS6 out-performs the Weiand.
http://www.tpis.com/plog/index.php?o...Id=14&blogId=1
http://www.tpis.com/plog/index.php?o...Id=14&blogId=1
TECH Addict
Joined: Mar 2004
Posts: 2,336
Likes: 0
From: Fat Chance Hotel
Originally Posted by natronathon
this could definetly be an awesome new item for the LS1 aftermarket, if indeed takes a place in-between the FAST and the LS6. Personally I am not worried about heat-soak, and if the performance is equal or higher to an LS6, its what i will get.
Another point i don't often see made is that if anyone here data logs, then they would notice that on an average to hot day (outside temp) the IAT (intake air temp) is usaully close 100 degrees. I don't see how having an Intake that is not significantly warmer will have a huge effect on hp if the air is already that hot. I don't think the intake is going to be much hotter than that especially if your fan settings are adujusted to keep ECT temps under 190 and keep air moving across the engine bay at all times.
Also this may help with driveability during the colder winter months. An intake that is faster to warm up may help bring the car up to operating temp slightly faster, and therefore cut back slightly on the added fuel cost that cold driving brings...
Another point i don't often see made is that if anyone here data logs, then they would notice that on an average to hot day (outside temp) the IAT (intake air temp) is usaully close 100 degrees. I don't see how having an Intake that is not significantly warmer will have a huge effect on hp if the air is already that hot. I don't think the intake is going to be much hotter than that especially if your fan settings are adujusted to keep ECT temps under 190 and keep air moving across the engine bay at all times.
Also this may help with driveability during the colder winter months. An intake that is faster to warm up may help bring the car up to operating temp slightly faster, and therefore cut back slightly on the added fuel cost that cold driving brings...
The reality is the IAT is located in the lid. The lid is plastic/composite and was extremely hot when I got home. Hot enough that I couldn't keep my hand on it for more than a second or two. I'm sure the intake was even hotter since it's attached to the engine.
TECH Enthusiast
Joined: Jul 2002
Posts: 653
Likes: 0
From: Mannheim, Germany
Ya, I mean heat rises so how much cooler than the engine can the intake be?
All things equal, plastic is better but I don't think it's a huge difference. Will we ever get a real answer? Probably not.
All things equal, plastic is better but I don't think it's a huge difference. Will we ever get a real answer? Probably not.
