FAST lsxr intake... intake runners blown apart 24psi

[g8lover]

Just another FAST intake LSXR with issues on boosted application. They say they are good to 30psi... but at 24psi mine had two runners blown apart and every seal on the runners injested 30% of the seal....

Fixable but I called fast and they said I needed to buy the full runner set for like $370..... and I couldnt just get two.... they said they would call me back as they were going to check.... been four days with no call back..

FYi... will have a LS7 lsxr intake for sale after I buy the damn runners... or I will sell at a discount if someone wants to epoxy them or something...

I wouldnt do the FAST for anything over 18psi... guessing... but surely no where near 24psi... I have heard of a couple going at the 24psi level...

its also funny everybody has heard of it.... but FAST guys say they have never heard of any issues... lol...

just wanted to add to the list of blown runners...

[Bo White]

Of the ones Ive ported for boosted cars I silicone them back together.

[BiggFoot]

Originally Posted by g8lover

Just another FAST intake LSXR with issues on boosted application. They say they are good to 30psi... but at 24psi mine had two runners blown apart and every seal on the runners injested 30% of the seal....

Fixable but I called fast and they said I needed to buy the full runner set for like $370..... and I couldnt just get two.... they said they would call me back as they were going to check.... been four days with no call back..

FYi... will have a LS7 lsxr intake for sale after I buy the damn runners... or I will sell at a discount if someone wants to epoxy them or something...

I wouldnt do the FAST for anything over 18psi... guessing... but surely no where near 24psi... I have heard of a couple going at the 24psi level...

its also funny everybody has heard of it.... but FAST guys say they have never heard of any issues... lol...

just wanted to add to the list of blown runners...

Nice Car!! Sounds like you have had a lot of trouble with intake manifolds. I am going F-1X myself but for now at low psi until or when I get an LSX. Which of the manifolds you have tried to date have done the best? For now, I plan to go with the stock LS3 manifold and Fore fuel rails.

By the way, how long have you had the F-1X and how do you like it?

[Trob85]

Go sheetmetal and be done with it.

[BiggFoot]

I looked at sheet metal intakes. You can pay anywhere from $600 - $5000 for one. Even if price didn't matter (because I considered one that was $4500), I haven't found anyone that can honestly tell me that a sheet metal intake will perform admirably at 1200 rwhp, however the stock LS3 manifold (ugly as it is) will.

[stevieturbo]

The sheet metal intakes certainly wont restrict top end power, but may well have different characteristics throughout the rpm range vs other intakes.

Quality would concern me though with some of the cheaper ones, but if nothing else most of them do look cool.

How exactly did the runners fail ? As they are inside the plenum, boost itself shouldnt really affect them ? As they dont see any pressure differential ?

[L.O.D. Speedworks]

not to thread jack but we just came out with an intake manifold that'll hold pretty much whatever you can throw at it. Its cast aluminum and fits under a 5th gens hood without having to cut anything.

[stevieturbo]

That looks a little like what Frankenstein as been advertising lately ?

Huge price though, no ( public ) dyno proof of performance yet either.

[L.O.D. Speedworks]

Originally Posted by stevieturbo

That looks a little like what Frankenstein as been advertising lately ?

Huge price though, no ( public ) dyno proof of performance yet either.

This is Cast aluminum, lists for $1525 and works with most cold air intakes. It has been on the dyno but third party results will be in soon

[Jacoup]

Originally Posted by Yankee_ss

This is Cast aluminum, lists for $1525 and works with most cold air intakes. It has been on the dyno but third party results will be in soon

How high is this manifold past the fuel rails? I have a UPP TT im looking for a manifold that will fit under my crossover pipe.

[L.O.D. Speedworks]

Originally Posted by Jacoup

How high is this manifold past the fuel rails? I have a UPP TT im looking for a manifold that will fit under my crossover pipe.

its as high as possible while still fitting under a stock hood. In your case you would have to run your passenger piping a different route.

[stevieturbo]

Very interesting at cast as opposed to a CNC piece, that certainly brings the price down ( FRH's was a CNC at over double that price )

Any cathedral ports ?

An intake like that with the lower profile, would have a much bigger market than a lot of the designs out there, and a much more sensible price point too !

[L.O.D. Speedworks]

Originally Posted by stevieturbo

Very interesting at cast as opposed to a CNC piece, that certainly brings the price down ( FRH's was a CNC at over double that price )

Any cathedral ports ?

An intake like that with the lower profile, would have a much bigger market than a lot of the designs out there, and a much more sensible price point too !

Thanks, Yes a cathedral port is in design right now. we arrived to these solutions mostly due to the fact that we're actual enthusiasts like everyone on here. I know I couldn't justify cutting out part of my cowl to fit an intake unless its an all out racecar. We also wouldn't expect anyone to replace the stock LS3 (an excelent design) with something that doesn't actually make more power. why would we expect any less from the consumer?............Oh and this intake is 100% American made

[stevieturbo]

Originally Posted by Yankee_ss

Thanks, Yes a cathedral port is in design right now. we arrived to these solutions mostly due to the fact that we're actual enthusiasts like everyone on here. I know I couldn't justify cutting out part of my cowl to fit an intake unless its an all out racecar. We also wouldn't expect anyone to replace the stock LS3 (an excelent design) with something that doesn't actually make more power. why would we expect any less from the consumer?............Oh and this intake is 100% American made

Sounds good !

An offering without the lowered section at the back might be good too, as not all would want that. But clearly it's there for a reason.

Any details of the internals ?