thoughts on the f23 tubular manifold?

[EuroSpic_TT]

I searched and read, just wondering what are peoples opinions as of right now on the manifold? Doing the full f23 kit with all basic bolt ons and going maestro. oppinions on this manifold please

[Tempes_TT]

There was a quick discussion on manifolds on one of these threads the last couple days.

Basically...

OE Mani - worst.
Franken Mani - Better then stock
JBS Mani - Best

My consensus on the whole thing... Anything with more flow then stock will result in net gain.

I myself am most likely getting the frankenturbo mani as Im also doing a mild build with the F23. Id love to get a hold of that JBS mani, but for ~$700, Id rather spend my money elsewhere. Not to say its not worth it (as Im sure it is) just due to possible future plans, its not worth it for me personally to dish out for the best of the best.

[EuroSpic_TT]

There was a quick discussion on manifolds on one of these threads the last couple days.

Basically...

OE Mani - worst.
Franken Mani - Better then stock
JBS Mani - Best

My consensus on the whole thing... Anything with more flow then stock will result in net gain.

I myself am most likely getting the frankenturbo mani as Im also doing a mild build with the F23. Id love to get a hold of that JBS mani, but for ~$700, Id rather spend my money elsewhere. Not to say its not worth it (as Im sure it is) just due to possible future plans, its not worth it for me personally to dish out for the best of the best.

yeah thats basically what im doing, and i know ill eventually want more power and end up goin a whole diff route so i think imma get the manifold with the kit

[Atomic Ed]

If it wasn't for the JBS manifold hitting the market, I would have gone with the Frankenturbo manifold. It's at a great price point and will perform better than stock.

[warranty225cpe]

If it wasn't for the JBS manifold hitting the market, I would have gone with the Frankenturbo manifold. It's at a great price point and will perform better than stock.

Yeah me 2. My F23 is going in right now. Unfortunately I cant afford the JBS at the moment. How hard is it to swap manifolds? I might have to save up for one. Knowing that my exhaust is hitting a choke point there bothers me.

[DeckManDubs]

When I have my engine out for overhaul at whatever point that is, JBS for sure. Not a fan of tig'd manifolds as welds tend to have plenty of cracking issues over time.

I assume that the JBS's are using Inconel 600 or X-750 to deal with the heat. Nasty stuff to machine, especially X-750.

[Atomic Ed]

When I have my engine out for overhaul at whatever point that is, JBS for sure. Not a fan of tig'd manifolds as welds tend to have plenty of cracking issues over time.

I assume that the JBS's are using Inconel 600 or X-750 to deal with the heat. Nasty stuff to machine, especially X-750.

I don't think it's Inconel. From what I've seen on the cost of Inconel valve parts I don't believe we could afford an Inconel cast manifold

Corrected: From JBS's website on their K04 manifold.

"austenite cast steel having the chemical composition of 20%Cr-10%Ni-3%W-2%Nb"

Not sure what this stuff is. Do you have some better insight?

Here's the link to the info:

http://www.jbsautodesigns.co.uk/news...-cast-manifold

[DeckManDubs]

I don't think it's Inconel. From what I've seen on the cost of Inconel valve parts I don't believe we could afford an Inconel cast manifold

Corrected: From JBS's website on their K04 manifold.

"austenite cast steel having the chemical composition of 20%Cr-10%Ni-3%W-2%Nb"

Not sure what this stuff is. Do you have some better insight?

Here's the link to the info:

http://www.jbsautodesigns.co.uk/news...-cast-manifold

20% Chrome
10% Nickel
3% W-2 Tool Steel
2% Niobium (Very expensive stuff)
= 35%

Other 65% is most likely a mix of copper/iron/other stuff

So the composition is like Inconel 718 ()

Inconel	Element (% by mass)
	Ni	Cr	Fe	Mo	Nb	Co	Mn	Cu	Al	Ti	Si	C	S	P	B
600 [3]	72.0	14.0-17.0	6.0-10.0				1.0	0.5			0.5	0.15	0.015
617 [4]	44.2-56.0	20.0-24.0	3.0	8.0-10.0		10.0-15.0	0.5	0.5	0.8-1.5	0.6	0.5	0.15	0.015	0.015	0.006
625 [5]	58.0	20.0-23.0	5.0	8.0-10.0	3.15-4.15	1.0	0.5		0.4	0.4	0.5	0.1	0.015	0.015
718 [6]	50.0-55.0	17.0-21.0	balance	2.8-3.3	4.75-5.5	1.0	0.35	0.2-0.8	0.65-1.15	0.3	0.35	0.08	0.015	0.015	0.006
X-750 [7]	70.0	14.0-17.0	5.0-9.0		0.7-1.2	1.0	1.0	0.5	0.4-1.0	2.25-2.75	0.5	0.08	0.01

Higher Chrome content, perhaps to make up for the Nickel.


Should deal with heat very well. I would love to see some long term load testing with tons of heat cycles to see how it does.

[Atomic Ed]

Thanks for looking that up! I learned something today. I think you're right in that this alloy will deal with heat cycling better than any other material out there used in our aftermarket manifolds. It's been way too long since I messed with this stuff.

Wouldn't it need to be at least 40% Nickel to be considered Inconel?

Bottom line, this manifold should be a high quality product that will last.

As for the Frankenturbo manifold, I still think it's a great bang for the buck.

[Marcus_Aurelius]

To summarize the last few posts between Noah and Ed for the rest of the community, JBS has done their homework on all fronts including material composition. They haven't skipped flow optimization and structural reinforcement either BTW.

[DeckManDubs]

Thanks for looking that up! I learned something today. I think you're right in that this alloy will deal with heat cycling better than any other material out there used in our aftermarket manifolds. It's been way too long since I messed with this stuff.

Wouldn't it need to be at least 40% Nickel to be considered Inconel?

Correct. But I assume that due to cost constraints that is the reason the Nickel level is lower. Inconel 600 is more commonly known as Nickel 600. Nickel 200 is pure Nickel (98-99%)