Professional Products Intake Manifold
I'm not going to have any other numbers or manifolds to test it over though 
If it performs as well or even a bit better than an LS6 manifold should, I'll still be happy for the price and appearance. It'd be even cooler if I don't have to use the 01-02 coolant lines and such. That'd make it worth it for me, just one less thing to mod and/or spend money on.
Motor will be stock compression or very slightly higher 346ci, "stage 2" heads (308/??? @ .650 with good mid #'s), 224*/228* .641"/.646" 110* LSA LSK lobed cam, Coated Pacesetter LTs and TSP ORY, SLP 2OTL cat-back, MTI lid, stock MAF, stock TB or possibly ported a bit, 30# SVOs (36ish at 58psi).
If it performs as well or even a bit better than an LS6 manifold should, I'll still be happy for the price and appearance. It'd be even cooler if I don't have to use the 01-02 coolant lines and such. That'd make it worth it for me, just one less thing to mod and/or spend money on.
Motor will be stock compression or very slightly higher 346ci, "stage 2" heads (308/??? @ .650 with good mid #'s), 224*/228* .641"/.646" 110* LSA LSK lobed cam, Coated Pacesetter LTs and TSP ORY, SLP 2OTL cat-back, MTI lid, stock MAF, stock TB or possibly ported a bit, 30# SVOs (36ish at 58psi).
Last edited by DuronClocker; May 21, 2006 at 11:15 AM.
No, I haven't asked them anything. I may give them a call tomorrow to verify its being shipped out and to see if they have anything to say about it, but otherwise, I'll just see what it comes with and everything when it gets here. I got the polished version to match my polished valve covers and chrome wheels 
I ordered the standard LS1 version. I didn't want to mess with an LS2 throttle body and I've heard the LS2 intakes suck anyways. Hopefully the LS1 version is based more or less on the LS6 idea. An 85mm TB opening is enough for me for now, and if I end up going to 90mm, I can always grind the opening a little bit bigger. No need for a 96mm setup here at all. I'm only looking at 450ish rwhp before spray.
I ordered the standard LS1 version. I didn't want to mess with an LS2 throttle body and I've heard the LS2 intakes suck anyways. Hopefully the LS1 version is based more or less on the LS6 idea. An 85mm TB opening is enough for me for now, and if I end up going to 90mm, I can always grind the opening a little bit bigger. No need for a 96mm setup here at all. I'm only looking at 450ish rwhp before spray.
Got a call from them today and he told me these intakes won't be available for a couple months yet, so they cancelled my order for me. Looks like I'll be going LS6 route until I can save up the $1200 for a Fast 90 90 setup..
It's gonna be hard to do a real world compparison cause a couple of passes on the dyno probly won't get to hot. But a day of driving alum. Vs. composite.......composite will win every time. I have a bias opinon because I spent a lot of money on my Tony Mamo ported Fast 90. But if someone wants to give me one to test out at the track for a full day of testing of each. I will post results and give back the intake. A full day at the track on a test and tune day will show true results if the intake heating up will be a factor
Everyone keeps on mentioning the fact that they prefer composite intakes over "heat soaking" aluminum. No one has mentioned that aluminum is a lot better material for intake manifolds if you are planning on running a big shot of nitrous. You are much less likely to destroy an aluminum intake with a nitrous backfire than a composite intake (sans burst plates).
i run the weiand manifolds. I've had 2. one was in stock form and made mid 400's with an F1 cam and 5.3 heads. The latest is port matched to a set of stage 2 5.3's, on a 6.0 iron block. haven't gotten any #'s or the cam put in yet, but I have never had a problem with "heat soak" except sitting in the pits at the track. When you shut off the car the intake tends to heat up a little, but as soon as you fire the car back up it cools off to touch. I've always argued the heat soak problem as over rated, but then again plastic does not hold heat like aluminum. Anyway point is that bang for the buck, if this intake can make the #'s an ls6 intake does or better it is well worth the $$$ paid for it.
I laugh at all of these people whining about heatsoak. Everyone that claims this manifold is junk because of heatsoak has YET to provide actual numbers showing that the aluminum manifolds rob horsepower. It's all hearsay until someone provides proof.
Last edited by Frosty; May 24, 2006 at 09:55 PM.
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Originally Posted by Frosty
I laugh at all of these people whining about heatsoak. Everyone that claims this manifold is junk because of heatsoak has YET to provide actual numbers showing that the aluminum manifolds rob horsepower. It's all hearsay until someone provides proof.
Originally Posted by Taspeed
i run the weiand manifolds. I've had 2. one was in stock form and made mid 400's with an F1 cam and 5.3 heads. The latest is port matched to a set of stage 2 5.3's, on a 6.0 iron block. haven't gotten any #'s or the cam put in yet, but I have never had a problem with "heat soak" except sitting in the pits at the track. When you shut off the car the intake tends to heat up a little, but as soon as you fire the car back up it cools off to touch. I've always argued the heat soak problem as over rated, but then again plastic does not hold heat like aluminum. Anyway point is that bang for the buck, if this intake can make the #'s an ls6 intake does or better it is well worth the $$$ paid for it.
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Joined: Jun 2005
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From: England
Originally Posted by Sherlock
When it cools down to the touch, where do you think all the heat is going to? Thats right, its tagging along with the air and going inside the motor.
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From: Fat Chance Hotel
Food for thought: The GM TPI manifold (plenum/runners/base) was made from aluminum, *but* the IAT sensor was under the plenum screwed directly into the metal. I don't remember seeing high temperatures from the Tech I. Yes I said tech I... I'm old and maybe senile too. 
Almost all intakes pre LS1's were made of metal.
Heatsoak........grab a bag of ice. End of story. If you're waiting in the lanes, strap a bag of ice.
If you're driving around checking out the hotties, well then you can't be complaining about heatsoak. There's a constant airflow which will keep the intake cool.
I live near Maple Grove where most of NHRA's quickest runs are made. I am in the process of building a nitrous motor for my Camaro and my local speed shop advised me to use and aluminum intake.
Yeah , FAST had direct port holes ready for tapping but I don't want to worry about some little plastic shredding apart or worrying if it's gonna hold a 500 shot of nitrous.
Your damn right I am using a Weiand intake.
Heatsoak........grab a bag of ice. End of story. If you're waiting in the lanes, strap a bag of ice.
If you're driving around checking out the hotties, well then you can't be complaining about heatsoak. There's a constant airflow which will keep the intake cool.
I live near Maple Grove where most of NHRA's quickest runs are made. I am in the process of building a nitrous motor for my Camaro and my local speed shop advised me to use and aluminum intake.
Yeah , FAST had direct port holes ready for tapping but I don't want to worry about some little plastic shredding apart or worrying if it's gonna hold a 500 shot of nitrous.
Your damn right I am using a Weiand intake.
Originally Posted by Friday13th
Almost all intakes pre LS1's were made of metal.
Heatsoak........grab a bag of ice. End of story. If you're waiting in the lanes, strap a bag of ice.
If you're driving around checking out the hotties, well then you can't be complaining about heatsoak. There's a constant airflow which will keep the intake cool.
I live near Maple Grove where most of NHRA's quickest runs are made. I am in the process of building a nitrous motor for my Camaro and my local speed shop advised me to use and aluminum intake.
Yeah , FAST had direct port holes ready for tapping but I don't want to worry about some little plastic shredding apart or worrying if it's gonna hold a 500 shot of nitrous.
Your damn right I am using a Weiand intake.
Heatsoak........grab a bag of ice. End of story. If you're waiting in the lanes, strap a bag of ice.
If you're driving around checking out the hotties, well then you can't be complaining about heatsoak. There's a constant airflow which will keep the intake cool.
I live near Maple Grove where most of NHRA's quickest runs are made. I am in the process of building a nitrous motor for my Camaro and my local speed shop advised me to use and aluminum intake.
Yeah , FAST had direct port holes ready for tapping but I don't want to worry about some little plastic shredding apart or worrying if it's gonna hold a 500 shot of nitrous.
Your damn right I am using a Weiand intake.
