new intake on the block
Joined: Aug 2007
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From: Turnin' Wrenches Infractions: 005
And these used in a couple of years are gonna cost how much??? This intake has its place I think....
Last edited by 01ssreda4; Dec 6, 2014 at 04:44 PM.
I'll predict that shops will take this Dorman intake and "fix" it by getting everything aligned and port it a bit so it performs "properly" or perhaps better than a genuine LS6 manifold.
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From: over dere
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Verdad Gallardo i'm obsessing perhaps, but I took a good look at a FAST and the dorman. I'm pretty sure this is part of the issue. Look at where the end of the runner meets the bottom shell on both intakes. You can see quite a bit of space on the doorman between the runner and the injector hole. On the fast, the distance is much closer. Pretty sure this is the source of that "hump" or misalignment on the top of the runner where it meets the bottom shell.
I'm not sure why dorman designed it this way. i'm pretty sure this limits flow compared to the fast.
I'm not sure why dorman designed it this way. i'm pretty sure this limits flow compared to the fast.
not sure how you can say that. the visual evidence on the outside matches how the inside of the ports look on both manifolds. Also, the FAST top shell isn't that thick. most of that extra material for porting is on the bottom shell. that's why FAST put "witness marks" on the ports, and they are only on the bottom shell--to tell you just how much extra material you have.
Maybe it's just bonded in a couple of places and once the intake is on the car it compresses the seal and sucks the upper shell where it needs to be?
It would be cool if someone would tear one apart unfortunately like me I don't want to spend money and ruin something that I can buy for $50 more....
I wonder how sealed the upper shell is to the lower? You can see the orange seal in the very back seperating the two.
Maybe it's just bonded in a couple of places and once the intake is on the car it compresses the seal and sucks the upper shell where it needs to be?
It would be cool if someone would tear one apart unfortunately like me I don't want to spend money and ruin something that I can buy for $50 more....
Maybe it's just bonded in a couple of places and once the intake is on the car it compresses the seal and sucks the upper shell where it needs to be?
It would be cool if someone would tear one apart unfortunately like me I don't want to spend money and ruin something that I can buy for $50 more....
I wonder how sealed the upper shell is to the lower? You can see the orange seal in the very back seperating the two.
Maybe it's just bonded in a couple of places and once the intake is on the car it compresses the seal and sucks the upper shell where it needs to be?
It would be cool if someone would tear one apart unfortunately like me I don't want to spend money and ruin something that I can buy for $50 more....
Maybe it's just bonded in a couple of places and once the intake is on the car it compresses the seal and sucks the upper shell where it needs to be?
It would be cool if someone would tear one apart unfortunately like me I don't want to spend money and ruin something that I can buy for $50 more....
Guess you missed this...
Guys, I was lucky enough to see the piece that was dyno'd in that test. I was excited when I first saw it and somewhat disappointed when the results came back as I had hoped it would be as good as an LS-6. To answer some questions: Yes it is a little rough as produced, but it is also designed as an OE replacement part. Some flash removal and maybe some work to get the entrances close might add another 5-7. Also it is heavily glued together and I do not believe it would come apart without destroying it so porting would be difficult to say the least.-Mike
I bet on a stock head car the difference between this intake and the ls6 would be negligible.
The trick flow heads used on their test engine clearly demand as much air as possible which explains why the Fast gained so much. I don't recall having ever seen a Fast gain that much over a ls6, the gains posted are even higher than some have seen going from a ls1 to a Fast.
The trick flow heads used on their test engine clearly demand as much air as possible which explains why the Fast gained so much. I don't recall having ever seen a Fast gain that much over a ls6, the gains posted are even higher than some have seen going from a ls1 to a Fast.
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Joined: Aug 2011
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From: Marengo, Ia
I bet on a stock head car the difference between this intake and the ls6 would be negligible.
The trick flow heads used on their test engine clearly demand as much air as possible which explains why the Fast gained so much. I don't recall having ever seen a Fast gain that much over a ls6, the gains posted are even higher than some have seen going from a ls1 to a Fast.
The trick flow heads used on their test engine clearly demand as much air as possible which explains why the Fast gained so much. I don't recall having ever seen a Fast gain that much over a ls6, the gains posted are even higher than some have seen going from a ls1 to a Fast.
So was the ls6 intake untouched? I would think like a few have said a light cleanup and this should be as good as or better than an ls6 for less money for those willing to work on it. Will be interested in seeing how the 90 version will perform, or If it will take 1/6 or 2 rails...