SlowBoy manifold?

[LilGdsm]

Anyone running slowboy's cast manifold. I'm considering one and curious if its solid, isn't going to crack.

 

[anconover]

Its a cast manifold, its brand new... Its solid, it isnt going to crack.

 

[LilGdsm]

Its a cast manifold, its brand new... Its solid, it isnt going to crack.

cast manifold, but solid like a 2g's or brittle as a 1g's? I just want to know if people had any issues with them. cracks, fitment?

 

[anconover]

its just a recast evo III mani with larger ports. Fitment is perfect, and no it wont crack...

 

[ITSME4G63]

theres plenty of threads on this, the sbr manifold is the best you can get, especially for the price, stop asking this question, just get it, you definately wont be dissapointed

 

[Maglin]

It has a higher Nickle content just like the Evo manifold's do, so no it won't crack.

 

[LilGdsm]

It has a higher Nickle content just like the Evo manifold's do, so no it won't crack.

nice, thanks

 

[gringoloco]

Thats not true at all, ALL manifolds will crack over time. Even the mighty cast design will eventually crack. And with the cracked ones I wouldnt recommend rewelding them, you need a nickel compound that is expensive as crap to weld cast. So its just cheaper to upgrade to a bigger cast one. I had 3 hairline cracks in my 2g manifold, so I went with a Evo 3 manifold and ported it out. And of course like always when I upgrade something better comes along at the same time after I paid money for it. I bought the evo 3 manifold/o2 housing from SBR. And then they came out with the new manifold and new tube style 02 housing. But great upgrade overall from my 2g style. But anyway overtime and heat stress from the turbo, any manifold will crack over time, its just something that happens.

 

[Maglin]

Nickle rod isn't that expensive. More than regular welding rod but it's not to bad. I have a welder, Torch, and 95% Nickle rod so I weld up anything cast that is cracked. Key is to get that thing cherry red before you weld on it so you get some good penitration as Nickle rod really welds very crappy and doesn't penitrate like steel rod does.

 

[2.4 turbo Hyped]

Nickle rod isn't that expensive. More than regular welding rod but it's not to bad. I have a welder, Torch, and 95% Nickle rod so I weld up anything cast that is cracked. Key is to get that thing cherry red before you weld on it so you get some good penitration as Nickle rod really welds very crappy and doesn't penitrate like steel rod does.

Penetrate.

 

[2.4 turbo Hyped]

Nickle rod isn't that expensive. More than regular welding rod but it's not to bad. I have a welder, Torch, and 95% Nickle rod so I weld up anything cast that is cracked. Key is to get that thing cherry red before you weld on it so you get some good penitration as Nickle rod really welds very crappy and doesn't penitrate like steel rod does.

Penetrate.

 

[Maglin]

LoL.. Yeah yeah... I'm not english major.. Can't spell...

 

[poorboyj]

I was told by probably the most knowledgable/reputable DSM "turbo" shop, that the SBR manifold has ports that are too large and actually hurt performance. Any thoughts on this?

Jay

 

[4geze63]

heres some pics i took of the slowboy compared to the 1g http://dsmtuner.com/forums/showthread.php?t=159139


ports to large, i dont think so, a tubular header flows more and there no problems with those

 

[Jon Lane]

And for the last time, it's "definitely" not "definately" or any of the other millions of permutations of that word on this board...

 

[Jehu]

The problem with welding cast iron is that high carbon content often leads to the formation of brittle iron phases in the fusion zone and the heat affected zone. This, plus the lack of preheat, is what usually leads to cracks in welded cast iron. The high nickel rod provides a very ductile filler material that will stretch instead of crack, and low heat input welding methods will also mitigate the formation of undesirable phases.

That said, blanket statements like "All manifold will crack" is pretty pointless. Sure, probably after 10-20-100 years, you will be able to put enough heat/stress cycles on to fatigue most material, but PRACTICALLY, cast manifolds are typically more resistant to cracking due to the way forces are distributed in the manifold vs tubular manifolds. It is not really a matter heat, but of carrying the weight of the turbo/dp etc. How heat plays into the equation is that it significantly lowers the yield strength of the material. A high nickel alloy will exhibit high strength at elevated temperatures.

So a.) you have a form which is resistant to cracking i.e. cast
b.) you have a material which will stand up to higher temperature service
This is probably as crack-resistant as you'll get wouldn't you say?

 

[SlowboyCSE]

I was told by probably the most knowledgable/reputable DSM "turbo" shop, that the SBR manifold has ports that are too large and actually hurt performance. Any thoughts on this?

Not trying to start a new discussion/arguement or steal the thread, but what is the reasoning on this? I'm not asking who said it, but what the reasoning is.

Cragger

 

[2.4 turbo Hyped]

I was told by probably the most knowledgable/reputable DSM "turbo" shop, that the SBR manifold has ports that are too large and actually hurt performance. Any thoughts on this?

Jay

Perhaps if your head is not port matched this may be true.

 

[vteg]

Perhaps if your head is not port matched this may be true.

Some tuners believe that having header openings larger than the exhaust ports will help prevent reversion. Personally I don't think there is an issue with larger exhaust manifold ports besides slight lag caused by more gas needed to fill the manifold. Luckily it is not like the wrx manifold/header piping. I don't think it will be a noticeable difference.

 

[JusMX141]

HOW TOUGH ARE SLOWBOY CAST MANIFOLDS? See for yourself:

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

This came from my buddy's '93 Talon TSi AWD. The turbo was a SBR GT13, and a Tial 38mm Gate. Not too much as far as excessive weight, right?

So what would cause this if they're so indestuctable?

Slowboy has opted not to warranty the manifold, by the way.

 

[Slowboy]

HOW TOUGH ARE SLOWBOY CAST MANIFOLDS? See for yourself:

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

This came from my buddy's '93 Talon TSi AWD. The turbo was a SBR GT13, and a Tial 38mm Gate. Not too much as far as excessive weight, right?

So what would cause this if they're so indestuctable?

Slowboy has opted not to warranty the manifold, by the way.

WOW - you keep posting this - but still have not got in touch with me - .

Nice way to try and start trouble.

Mike Huml
Slowboy

 

[VTEC_THIS]

^^^^ I was about to say the same..

 

[xxraptor660xx]

HOW TOUGH ARE SLOWBOY CAST MANIFOLDS? See for yourself:

You must be logged in to view this image or video.

You must be logged in to view this image or video.

You must be logged in to view this image or video.

This came from my buddy's '93 Talon TSi AWD. The turbo was a SBR GT13, and a Tial 38mm Gate. Not too much as far as excessive weight, right?

So what would cause this if they're so indestuctable?

Slowboy has opted not to warranty the manifold, by the way.

That's a pretty clean crack right there...The fact that it cracked right through all four runners makes me doubt whether it broke naturally or a 2 ton anvil dropped on it.

 

[Slowboy]

That's a pretty clean crack right there...The fact that it cracked right through all four runners makes me doubt whether it broke naturally or a 2 ton anvil dropped on it.

And - if the owner who did this brings to me and can look me in the eye and say it happened at the track, I will hand him a new one accross the counter and give him a hug.... shipping cost money, hugs are free.

Mike Huml
Slowboy

 

[xxraptor660xx]

And - if the owner who did this brings to me and can look me in the eye and say it happened at the track, I will hand him a new one accross the counter and give him a hug.... shipping cost money, hugs are free.

Mike Huml
Slowboy

Warrantys only cover track use?