Alternatives to Log-style Manifolds (including Ajax's Manifold)

[DSMunknown]

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That log design makes me sick.

 

[VelocitàPaola]

Why? So far, that's the standard for the 420A...

 

[chris712vt]

Why? So far, that's the standard for the 420A...

+1, although it would be nice if we had some other options, and I mean with enough quality to fit and function well. I'd much rather a tubular manifold, possibly with equal length runners, over the standard log style, but you gotta work with what's available if you can't make your own.

 

[BigRand]

+1, although it would be nice if we had some other options, and I mean with enough quality to fit and function well. I'd much rather a tubular manifold, possibly with equal length runners, over the standard log style, but you gotta work with what's available if you can't make your own.

Could always spend some dough on the obx tubular manifold, and have a shop make some expensive upgrades to it.....I saw "Ajax" with a custom tubular manifold that looks and seems to perform really well.

 

[VelocitàPaola]

Don't you guys ever look around 2GNT? I've got a cast tubular manifold project I'm working on, and Punishment is working on a welded tubular manifold.

 

[chris712vt]

haha oops, I used to be on 2GNT just as much as I'm on here, but I haven't really read much over there in the past couple months. I'll have to check it out, might give you some business when I go turbo

 

[DSMunknown]

Why? So far, that's the standard for the 420A...

+1, although it would be nice if we had some other options, and I mean with enough quality to fit and function well. I'd much rather a tubular manifold, possibly with equal length runners, over the standard log style, but you gotta work with what's available if you can't make your own.

The log style in most cases is great for space restrictions and are fairly easy to fabricate/copy. But if I was part of the NT community, I would seek something that is a median between the log style EMs and a "race style" tubular EM with single runners. We see this with all three versions of the OEM 1G, 2G, and Evo III exhaust manifold versions.

We even see it with FP's newly designed EM (that closely resembles the other three manifolds, with some obvious exceptions). The FP exhaust manifold probably comes damn near close to perfection when it comes to similarity, performance, quality, etc when compared to a new Evo 3 EM. Sure, I can still gripe about a couple things I don't like about it, but there is also a lot of positive stuff to say about it as well.

So what was the point of my rambling? I would just prefer the best of both worlds - the solid performance of a high-price single runner EM with the reliability, simpleness, and afforability of a log design EM. Of course, the EM I have in mind wouldn't be for "all out" performance junkies. However, it would be a much more solid platform to work off of than a simple log style exhaust manifold. It would be able to hold up to the abuses of daily driving, and also be a competitor at the strip/track. It wouldn't punch us hard in the wallet, but it would be a good investment for future upgrades and future goals. As we all know, the log style EMs are horribly restrictive when compared to the single runner EMs, but I don't want nor need a "race style" tubular EM to run down to the nearest NAPA store or to work every day. (Let's just assume you'll be using your modified DSM as a DD for now.) And I don't want to have to change out my EM when I go to the strip/track. I want a nice product that fits well into all of my categories and expectations. I understand there is give-n-take in this situation I'm describing, and thus is why I would call for a median between the two designs.

Just my seven cents.

 

[VelocitàPaola]

I would just prefer the best of both worlds - the solid performance of a high-price single runner EM with the reliability, simpleness, and afforability of a log design EM.

So would I, but right now log style manifolds are pretty much all that's available. I'd say less than 0.5% of all turbo 420As have something other than the Star, Hahn, or cheaper knockoff or homemade variant log style manifolds.

 

[BigRand]

So would I, but right now log style manifolds are pretty much all that's available. I'd say less than 0.5% of all turbo 420As have something other than the Star, Hahn, or cheaper knockoff or homemade variant log style manifolds.

Don't forget treadstones.......I know you meant to include it.

 

[Ajax]

Why wouldn't you clock the turbo so the cold side is pointing down? Should be a little less pipe. Or for me it was anyways. P.S why did Hahn make such a weird routing for the pipe? Also a pick of my manifold bigrand was refering too.

 

[VelocitàPaola]

Also a pick of my manifold bigrand was refering too.

And there's one of those 0.5% I was talking about...

 

[DSMunknown]

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^^ That's what I'm talkin' about!

 

[chris712vt]

wow Ajax that is beautiful! did you have to make it yourself? and does it clear the fans? and Paul, the one you are developing, I am assuming it is similar to this?

 

[VelocitàPaola]

Somewhat, but it's cast, and offset to the driver's side to better accomodate a large diameter downpipe.

 

[chris712vt]

Do you have a thread on 2GNT where you discuss it and possibly have pics and more info? If so can you post a link to it? Definitely like hearing that there will soon be an option other than the log style, hopefully available by the time I need one

 

[VelocitàPaola]

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=8&topic_id=99885&mesg_id=99885&page=

 

[Ajax]

I did remove my passenger side fan, but havent run into cooling issues yet. Company called fastfabrications made it about 5 years ago but there not in bussiness anymore!!

 

[totaleclipse_05]

Regarding your manifold ajax, wouldn't you want your wastegate flange mounted on the opposite side that it is now?

 

[Locke]

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=8&topic_id=99885&mesg_id=99885&page=

That will be a great option, Paul. I suspect you will sell quite a few.

Regarding your manifold ajax, wouldn't you want your wastegate flange mounted on the opposite side that it is now?

If it works, it works.

 

[totaleclipse_05]

If it works, it works.

I'm sure he could make it work, but unless he is planning on routing his wastegate dump back into his exhaust some how, he will probably be dumping right on top of his intake and melt couplers or something.

EDIT:
Just re-looked at his pictures and he offset the wastegate with another pipe and flange bolted up. I would still recommend trying to route a dumb pipe at least down towards the ground. Not sure if you have anything like that planned.

 

[freshlane]

nice job on the custom piping. I say paint it with some high temp enamel

 

[Ajax]

I dump to the atmosphere using a flex exhaust tubing out the driverside bumper. I can grab some pictures later if anyone is interested, but I do not want to steal this thread.

 

[totaleclipse_05]

I dump to the atmosphere using a flex exhaust tubing out the driverside bumper. I can grab some pictures later if anyone is interested, but I do not want to steal this thread.

I'd be kind of interested in seeing it, make another thread with some pics of your setup so far.

 

[Ajax]

Yeah I will, once I get my manifold back from Jethot bc there were a bunch of "runs" so i sent it back so another two week

 

[Ajax]

Heres some pics of the off-set tube I use, but i am going to cut it shorter so that I do not need a 90 at the bottom towards my bumper instead just use another flex exhaust piece and make a nice curve towards the bumper.