How the Magnus Street SMIM Should Be (DEI Reflect-A-Gold wrapped)

[2slow4utsi]

I run (since i helped design it) the DVDT fab manifold. But it's not a cheap mass produced manifold like the JMFAB / Magnus manifolds.

Yeah it's like three times the price of a JMF manifold with no real tests/results. I made a thread about the new CPC manifold and I'd like to see it go up against a bunch of other manifolds that haven't been tested (such as DV/DT).

 

[BigBeans]

I think his point was the manifold he runs is a lot more expensive because of limited production.

The manifolds he referenced are cheap, and mass produced. Cheap doesn't mean that they are poorly designed or manufactured, in this case it means they are mass produced so the cost is lower and attention to detail might be a bit below that of a $1000 manifold.

 

[2slow4utsi]

I think his point was the manifold he runs is a lot more expensive because of limited production.

The manifolds he referenced are cheap, and mass produced. Cheap doesn't mean that they are poorly designed or manufactured, in this case it means they are mass produced so the cost id lower and attention to detail might be a bit below that of a $1000 manifold.

But you have to take into consideration the fact that he's running a custom intake manifold that has no real proof that it actually performs.

 

[BigBeans]

I'm going to go grab some popcorn and let him google some stuff while I'm away.

I'm not familiar with his posts, i was just pointing out that he never said those manifolds were crap. It's not like he said they are cheap POS's.

BTW, theories are cute, but no dyno numbers and individual cylinder AFRs = no proof IMO.

 

[VETTE_50_TH]

I think his point was the manifold he runs is a lot more expensive because of limited production.

The manifolds he referenced are cheap, and mass produced. Cheap doesn't mean that they are poorly designed or manufactured, in this case it means they are mass produced so the cost is lower and attention to detail might be a bit below that of a $1000 manifold.

Excuse me if im wrong, is the definition of cheap not only not expensive but low quality? I do believe so it is. Now, if he said, a lesser expensive one, thats a different story.

But if then wanted to say, a less marketed, higher overhead company makes a well designed manifold that doesnt give runner 4 15% more air, where as this magnus from 4-5 years ago does, then i would say sure, that might be accurate.

Just because he paid top dollar for a mani from a company who doesnt sell 10000 a year is better because of only that, then he has another thing coming. JMF sells a lot more, has just as good quality, and like anything made revisions in the design when the demand was there for it. Its called running a business. Not a charity event.

 

[bastarddsm]

I wonder why the magnus has such poor air distribution? Anybody know how the intakes with a tube plenum like a older slowboy maniold work? Are they as bad as a magnus?

 

[BigBeans]

Just because he paid top dollar for a mani from a company who doesnt sell 10000 a year is better because of only that, then he has another thing coming. JMF sells a lot more, has just as good quality, and like anything made revisions in the design when the demand was there for it. Its called running a business. Not a charity event.

Who said anything about JMFs business practices?

I have a JMF Race on my car right now. It's a decent choice for the money...it's also cheap and mass produced.

 

[gofer]

Please keep the thread on-topic with the OP, I'd appreciate it.

 

[Boosted98gsx]

I wonder why the magnus has such poor air distribution? Anybody know how the intakes with a tube plenum like a older slowboy maniold work? Are they as bad as a magnus?

Tapered plenum, sudden expansion from the throttlebody, velocity stacks. Just overall improper plenum design for forced induction.

Air trying to reach #1 has to bypass a lot of pulse flow, is forced towards it by the tapered roof of the plenum, and tumbles over protruding velocity stacks, while air for #4 can go right in (with respect). So you wind up with a leaner #4 and a richer #1.

 

[TSiAWD666]

To think I thought the Magnus product was a well tested and very functional design... All this information is showing I should have done some research on this element. I'll need to consider alternatives later this year

 

[Maximuscr31]

Just get the new magnus v3 cast manifold. Airflow variance is under 1% from cylinder to cylinder

 

[97gst_spyder]

Just get the new magnus v3 cast manifold. Airflow variance is under 1% from cylinder to cylinder

They make one for the Dsm now!?!?

 

[Boosted98gsx]

They make one for the Dsm now!?!?

They just released it.

 

[97gst_spyder]

Oh, where's the info on it?

 

[Boosted98gsx]

Oh, where's the info on it?

They only did a static flow test on it. No pulse flow dynamics, so the jury is still out.

http://magnusmotorsports.com/products/intake-manifolds/evo-cast-aluminum-intake-manifold/

I think his point was the manifold he runs is a lot more expensive because of limited production.

The manifolds he referenced are cheap, and mass produced. Cheap doesn't mean that they are poorly designed or manufactured, in this case it means they are mass produced so the cost is lower and attention to detail might be a bit below that of a $1000 manifold.

More so because of the increase machining and material work required to produce it. Magnus simply crimps annular tubing for their runners, which causes flow disruption right at the head. The DVDT has tapered runners that must be fabricated and welded together. The magnus has flat sheet metal in a very easy to fab box-style plenum, the DVDT has a pressure vessel plenum with a CNC'd runner entry plate that maintains the circular cross section through the plenum (and domed endcaps for a true hemispherical pressure vessel), so there are no stress concentration points at any corners or heat affected weld zones.

So yea, the magnus is a "cheap" manifold (investment wise) compared to the DVDT.

 

[Maximuscr31]

http://www.dsmtuners.com/forums/ven...nus-v3-cast-manifold-pre-release-special.html

 

[snowborder714]

I figured this thread is enough on topic to heat wrap to post some pictures of what I've used it on so far. You can find the info on the wrap itself in post #9. I plan on wrapping/coating some more parts and areas, but this is just the start.

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[gofer]

Now you knew this question was coming...

Did you notice any difference in logged coolant temps or oil temps (if you've got a gauge)?

 

[snowborder714]

All sensors are in (oil temp and coolant temp), but only logging the factory coolant temp currently. Not sure if I plan on logging the oil temp ever, as I would see oil pressure being more important. But I don't have my gauge setup done yet, so I can't even monitor them yet.

Plus, with how little I drive my car, it could be a while until I get the data

 

[turbosax2]

Not sure if I plan on logging the oil temp ever, as I would see oil pressure being more important.

Plus you will soon be out of inputs until a MUX board is released to add inputs, plus the temp. sender is harder to log...especially when connected to a gauge too.

 

[slowwhite]

I realize this is an old thread. But has anyone used this?
https://www.designengineering.com/c...ngineering-inc/heat-sound-barrier/heat-screen

Or know exactly how much heat gets reflected?

I'm trying to find stuff as good as "Indy" is posting here.
http://www.evolutionm.net/forums/ev...5943-heat-reflective-tape-gold-vs-silver.html

But I'm not a member to ask him myself.

 

[greengoblin]

Look here: http://www.coastfab.com/heat-reflective-tape1.html

 

[snowborder714]

I'm trying to find stuff as good as "Indy" is posting here.
http://www.evolutionm.net/forums/ev...5943-heat-reflective-tape-gold-vs-silver.html

But I'm not a member to ask him myself.

See Kevin's post above...or you could've look on the first page of this thread for the info. Please make sure to read the whole thread as a lot of the questions have already been answered.

 

[slowwhite]

I apologize for not being clear. I've read both threads completely.

What I was trying to find is how much does
https://www.designengineering.com/c...ngineering-inc/heat-sound-barrier/heat-screen
This reflect. I haven't been able to find out yet through any google searched. And so far ever place I've found that sells it has the same write up.
If it reflects 97% like the Aero-Lite stuff does then I'd prefer to go with the above (strickly because extremepsi.com sells it and I have to place an order with then anyways).
I am sending Niu an email - I'll update if he has any more info then what they list.

 

[greengoblin]

I apologize for not being clear. I've read both threads completely.

What I was trying to find is how much does
https://www.designengineering.com/c...ngineering-inc/heat-sound-barrier/heat-screen
This reflect. I haven't been able to find out yet through any google searched. And so far ever place I've found that sells it has the same write up.
If it reflects 97% like the Aero-Lite stuff does then I'd prefer to go with the above (strickly because extremepsi.com sells it and I have to place an order with then anyways).
I am sending Niu an email - I'll update if he has any more info then what they list.

It's not listed on the coastfab link because it's not that great. Those guys do not mess with stuff that does not work. They support top tier race teams. It's also why I posted the link. If you want something that does a fantastic job it's in the link I posted.