do you think they will be as strong as stock? what about price? I could definately do with some high flowing manifolds! crap ANOTHER upgrade to add to the list....
mmmm they look nice! and expensive! :LOL: wasn't there someone on here that we constructing their own manifolds?
They should be as strong as stock. Prices havent been released yet but expect them to be slightly cheaper than the GD's. I would guess around US$1500+
Re: They should be as strong as stock. I was under the impression that they would be a hell of a lot cheaper than the GD ones since they aren't made from inconel, just cast iron.
These manifolds are going to be $1000USD from what I was told and they are stronger or as strong as stock due to their cast. However.. a lot are beginning to believe these will never be mass produced like a lot of promised items people have designed etc. They were meant to be available in Feb.. now it's April.. If they aren't here by the time my turbos are ready to bolt on I am just going to buy something else.
Sure do!! There was another big comparison with them like this a few months ago, everyone is just playing the waiting game now. There is also another guy making similar ones which are yet to be released also.
Forgot to mention, the graph showing them being way above the rest isn't du e to the manifolds alone, this post was put up by zisluv ages ago. The heads they are bolted to are very worked! Not just large valves. They are extensively ported, have a valve grind (which is the main reason for the better flow, not the larger valve diameter) etc. Best to look at the MS V1 chart for a real comparison.
Thats with the MS ones with larger valves though compared to the rest with stock valves. Not a good chart to be comparing. If you look further up the post you will see graphs of them all with the same heads measured at the same time, same machine. Much better idea, and yes still way outflow the extrude honed by miles. Exact same info I produced ages ago but in graph form when John was trying to tell us extrude honed is just as good as after market.
Re: These manifolds are going to be $1000USD from what I was told and they Holey CRAP! That is pretty expensive, why not just get some custom spaghetti made up? It's not like they are even very long!
The re-worked stockies flow extremely well. Considering you could get your stockies welded up for free if you know someone who does that stuff, and do the work yourself, it would cost you nothing. If someone could point me in the direction of what part of the manifolds can't have additional material added to them due to clearances etc I would be happy to take mine and get them welded up asap to see what sort of result you could get from them.
It isn't that expensive considering it costs >$500 to extrude hone a pair o f stock turbo manis and Inconels cost way more and still crack up until the V2 designs.
Um the result is in the graphs above The difference in flow isnt small by any means its huge. Just looking at the graph and the scale there its almost a 30% increase in flow on the SAME heads on the SAME flow bench. You can look back to the table for the exact figures but I cbf. If you can somehow argue that extrude hone Australia is somehow technically superior to America and can get 30% better results then fine. What gets me is that people spend a lot of money, not just you specifically but in general, on flowing heads. How much port work and valve enlargement does it take to get a 30% improvement in flow from the heads alone? Yet they skimp and extra $1200 on the cost of some good manifolds over extrude honing. Its obviously a restriction so I dont know why people continue to spout how good stock are. Results speak for themselves. The only downside has ever been risk of cracking which with the new MS manifolds should be even less.
Sort of Here are links to more info and what I did say. The ones we get done here in Sydney by Abrasive Flow Engineering are match ported first and the centre and most restrictive runner angle internally is altered then extensively extude honed over many hours to get nice a smooth. They are better than some after market ones but certainly not all. Also in the graph the M Smith ones also had after market valves so not apples for apples. From our extensive flow tests we found the heads are the main restriction rather than the plenum and throttle bodies, as on some motors. I did say that bling staino or even part or mega dollar Inconnel manifolds WILL and do crack, as wrong metal for high temp applications. Steam pipe is the go and high temp black heat HPC. Never seen zed cast manifolds crack. Are these Mike Smith ones factory ones extrude honed and match ported and complete new casting also? Yes results speak for themselves and also lack of results also. No bling stickers here. More info. Extrude Honing More Extrude hone 2000 PLUS rwhp in the build.
I don't think it's enlarged valves except on that end curve (in dark blue) the purple curve in the middle of the graph seems to just be the manifolds with the same setup as the rest of them - that's how i interpret it didn't it say somewhere in the ttnet post that the purpose of these was to provide a low cost mani? motivated by the fact that all others were too exp if i remember correctly, someone was referring to prices around the $400US mark...
