extrude honed...

[SBstar]

Yup, swell piece. Although turbos don't much care about how nice and smooth things are. Unless you're not in-boost, of course.

Huh? With an extrude honed intake manifold more air is being flowed, which in turn means more power at higher rpms. (of course it depends on other mods as well that fit together well). The point is it may lose me hp on the lower rpms scale, but I should gain in the higher rpms. Although the actual smoothness isn't what helps the most it does help a little, its actually the size of the runners that matters, perhaps thats what you meant.

 

[Stapl3]

The head should be roughed up afterwards though.

That's what I was saying.

 

[dr1665]

Huh? With an extrude honed intake manifold more air is being flowed, which in turn means more power at higher rpms. The point is it may lose me hp on the lower rpms scale, but I should gain in the higher rpms. Although the actual smoothness isn't what helps the most it does help a little, its actually the size of the runners that matters, perhaps thats what you meant.

More air flowing will result in more power anywhere in the engine's operating range provided there is sufficient fuel to mix with it. A smoother surface like that is going to be nothing but a blessing at any engine speed, with or without boost. Defiant said that turbos don't particularly care if the intake manifold is Extrude Honed, but that doesn't mean they won't benefit from the process.

You wouldn't want such a smooth finish in any intake area where atomized fuel would be present, as the fuel molecules would be more apt to stick to these surfaces and pool, leading to all kinds of delivery issues.

That looks like a damn fine manifold, you've got there, chief. You don't see too many of them around due to their cost-prohibitive nature. Definitely a high end piece and you likely got a good deal buying it used. Hope it works well for you.

 

[SBstar]

Well thanks for clearing that up. I guess it just didn't make sense that defiant would relate it to the turbo. I never mentioned it helping the turbo at all. Yeah I did get a good deal on it too. I can't wait to get this thing hooked up. I won't be able to tell the performance gain from just this piece as I've done a slew of modifications at the same time. But I'll keep you all posted.

 

[viper995]

ok so i just get back my intake manifolds from extrude hone and it does not look right i have photo so you can see it. will it still work?
i hope so

 

[Nanan]

Woh, that looks bad. Those rough edges are gona cause problems. Contact who ever did the EH and have them replace/repair/clean up the runner inlets web.

 

[fsu99gsx]

Yeah that sucks to see that. Extrude honing is suppose to smooth things out. That doesnt look smooth at all. Im getting mine done right now and now Im nervice. The shop should have never gven it back to you looking like that. Who did it?

 

[xlMcMlx DsM]

i think they owe you a new intake maifold, or at least your money back. Thats pretty bad

 

[Mike1992]

Looks good to me, everything is super smooth and the runners are opened up quite a bit.

 

[viper995]

It is super smooth but with the 1st runner and 2 runner like that will still work. I sent it to extrude hone my self. How does each runner get air??? It’s turbo so does it just push it in each runner or does it suck it in each runner?? Hum I don’t know.


thanks josh

just asking befor i put it on.

 

[luvmygst]

I would contact exrudehone before I let that thing touch my car. I had a intake for my mustang done and it looked nothing like that. From the pics it looks like the first 2 dividers a pretty thin, what happens when a piece breaks off? I would do mere research before installation. Just my opinion. Good luck.

 

[danamo250]

I was looking into extrude honing and I wanted to know if anyone has had it done? How big of an improvement it made? Did you think it was worth the money?

 

[ISUJakey]

Take 30 seconds and search for "extrude hone."

http://www.dsmtuners.com/forums/search.php?searchid=1584639

 

[BISHILVR]

Plenty of people have done it, it works good. Whether it's worth it or not is up to you, since it's not cheap.

 

[ECLIPSE4x4]

Save a liitle more money and get a SMIM.

 

[project_tsi]

Save a liitle more money and get a SMIM.

100% agreed. I searched around and extrude honing generally runs in the range of $385, for a good extrude hone job.

You generally gain around 7-9 CFM w/ the extude hone over a stock manifold which laymans terms equates to 15-20 hp at the top end.

Thats a lot of money to spend on a fancy port job. On the other hand, the JMFab SMIM is available all day long for $450. The JMFab SMIM has been compared in flow and gains to that of a Magnus SMIM. Expected gains are from 15-45hp over stock, even more on larger turbo apps.

So for about $65 ontop of that fancy extrude hone job, you can have an awesome SMIM.

Here is a link to the FFWD extrude hone info and the JMFab SMIM.

http://www.ffwdconnection.com/intake_flowchart_data.htm

http://www.ffwdconnection.com/flow.shtml

http://www.jmfabrications.com/dsm.html

 

[danamo250]

That JMFab SMIM is nice but the whole reaosn why I was considering extrude honing was I want to keep a stock look. It gained a decent amount of cfm and that was at stock lift. I plan on doing the 1g TB swap and getting the head done as well. I think with those 3 things I should gain a considerable amount and no one will ever know.

 

[90blacktsiawd]

Something i've always wanted to do and never heard of anybody else doing is to get my intake manifold, heads, exhaust manifold and exhaust housing all sent out and extrude honed together. If you included the gaskets too, everything would match up perfectly. I know you can port match everything but the thing about extrude honing is it flows through everything just like the air would. So it smooths out all the areas that would hang the air up.

Now to get all this done would be crazy expensive. But i think it might be worth it if someone wanted to spend the 2 grand to do.

 

[ECLIPSE4x4]

How much are you looking to spend on an extrude honed mani?

 

[danamo250]

Yes exactly what I've been thinking its gonna be a pretty penny but in the end I think it would be worth it. Well FFWD is asking 385 and thats the cheapest I've seen.

 

[Big Woo]

Please do not confuse the flow qualites of a thick grit filled puty to that of air. Air for example can tumble and or swirl as it flows around objects in its path such as valve guides, and embossments.

 

[90blacktsiawd]

Ok maybe i should have said "theoretically" it will follow the same path as the air would.

 

[danamo250]

That puty doesn't necessarily flow like air in that sense but it will eliminate those things that will cause the air to deflect and not flow smoothly through the head.

 

[Big Woo]

The process will slightly enlarge and smooth the current shape of the runner or port. It will not reshape the runner or port to one more advantagious for airflow. By re-shaping I mean to raise the roof, lower the floor, change the short or long side radius. The process will improve airflow, but it will not re-design the port configuration for you.

The follwoing is quoted from a extrude hone brochure.
"Extrude hone invented the abrasive flow machining process over 25 years ago. The process was initially developed for deburring and finishing complex internal passageways on critical aircraft hydraulic and fuel system components. Many of these components required edge and surface improvements to be preformed on areas that were impossible to reach using traditional finishing methods.

Extrude hone created a process that utilzes a semisolid polymer carrier mixed with abrasives to gentily and unifromly abrade areas where it is forced to flow. With many installations worldwide, the process continues to be widely used to polish, radius, and deburr aircraft turbine engine blades, disks, impellers, space shuttle and satellite parts, valves, fittings, hydraulic manifolds, dies, surgical implant devices, and semiconductor components".

 

[danamo250]

Thanks for all the info, I think for what my plans are for my gsx extrude honing might be the way to go.