derass

Anyone have experience with these? Im looking to get one for my S13 SR20DET. What is the casting quality like? How was the install overall? Should I just spend a few more bucks and get a less crappy ISIS? I'm aware that these knockoff manifolds sometimes require the casting and threads be cleaned up. Thanks!

edit: I would most likely have the throttle body, cylinder head and possibly IACV flanges planed at a machine shop.

ayuaddict

I'm sure it will work fine if you machine the flange flat, clean up all the casting and empty the shavings/chinese sand/whatever the hell these things are made of. It might even flow as well as an OEM part at that point.

racepar1

Is the 240sx "community" REALLY degrading to the point where we try to differentiate which one is better between two pieces of shit???

Godspeed=ISIS=Megan=ANY other bottom line knockoff shit... Not one is any better than the other.

thefro526

This. This a million times over. The only thing that differs a lot of this stuff is the color, and how good the warranty is.

People buy these and have been running them for years. They work, how well? Who knows. The quality is hit or miss, but if your willing to spend the money to have it cleaned up, then you'll probably correct most of the issues.

With that being said, the final total after having it machined/cleaned up is probably pretty close or in excess of the real part.

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Deto International

racepar1

I bet if you go to the poorest district in China to the Godspeed, Megan, and ISIS factories it would look like this. One HUGE factory with 3 doors. One door says "Megan", another says "Godspeed", and the third says "ISIS"...

ixfxi

I thought there were only two doors....
1) Entrance
2) Exit

and then a bunch of boxes in various palettes going to the various vendors in the US that sell that cheap shit...

Just saying...

jamg

everyone talks about a chinese factory.

not a single person has actually been there

lol

ayuaddict

hey man.

Chinese peasants are people too.

drumer_boy456

OMG I just got my intake manifold today. Glad to see this thread. Best product ive ever seen. Best product to come from jdm. So awesome! Im gonna order godspeed suspension.

Sugoi_Style

You get what you pay for.

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BossHogg

yo dawg. He said intake manifold.

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Corbic

Isn't this a searchable topic anyways?

I'm so sick of the whole "parts" debates. It's all fucking unsubstantiated bullshit anyway.

tiggertsi

not true at all times, if you mean the more expensive the product the better quality it is. how often does a major brand name confer a higher price just because said brand name? more often than most people suspect. not that i am giving an opinion on this intake manifold as i simply do not know.

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66 Plymouth Satellite, 96 Nissan 240sx, 03 Harley Sportster. Toys!

racepar1

Pretty much every single thing you post is "unsubstantiated", I'm sick of that too...

Drift_FX

solution..... make your own intake manifold. you will know the quality, and its not any more expensive then your "brand name" manifolds.... screw "JDM" ...my manifolds are both american made!...lol

tricky_ab

It's sad, but it's the damn truth...

...ugh....

Corbic

Facts don't need to be substantiated; that's a fact.

Corbic

I thought that happened almost 10 years ago with Megan vs Ksport?

Is not unique to the 240 world.

Sugoi_Style

While they're is always exceptions to the rule, in motorsport, the price usually reflects R&D and craftsmanship for a company over a sustained time. Besides we cant survive on their wages, but communism makes it easy for the chinese to do how they do. Jeremy Clarkson says it best.

tricky_ab

There ya go...

derass

Lots of replys, none with first hand experience.

Not sure what you mean by this, an OEM manifold or an aftermarket manifold built to OEM standards?

It is true than many people are using these knockoff manifolds, just look at the GT2871 thread.

The GReddy manifold is $900, knockoffs are under $200. Sure, the genuine part will have a better finish, but will it provide 4 times the HP gains? I have a die grinder and dremel, the machine work would be $50-100.

I did search, there is nothing about the Godspeed manifold, there is a thread about the ISIS and it states that it isn't too bad.

This is true, a friend of mine had the rod end of his brand new PBM LCA's fall apart. Thank you for witholding an opinion without any first hand experience.

Matej

Why do people pay for brands such as ISIS or Godspeed which are just middlemen for Ebay parts when one can buy the exact same part on Ebay for cheaper and without any brand name?

Corbic

Matej, I really don't want to start a freaking war over this but there IS a difference.

I'm not in anyway saying "buy Brand-XYZ", but I've seen enough parts and know enough people working with said parts that there is a difference between a ISIS FMIC and a CRX FMIC and a "no-name eBay" FMIC.


There is a sliding scale of material control and build quality. So while a Godspeed FMIC is inferior to a Blitz FMIC in material, fit and finish... the "eBay" FMIC will be inferior to a Godspeed in material, fit and finish.

As the saying goes "you often get what you pay for".

The other benefit of buying a ISIS part is you are typically buying them from Enjuku, who is a long standing reputable company. Buy from eBay is bad for two reasons, A. you are support eBay and their predatory business practices as well as fucking paypal. B. you never know who you are buying from and what the ACTUAL parts look like. I think we've all be screwed over on eBay at one time.

So it's only natural to pay the extra 25% for an ISIS part over the eBay one because it should be to "isis spec" and if it's not, Enjuku will make it right.

Matej

So basically, they are the exact same parts from the exact same place, except brands such as ISIS or Godspeed make sure to pick out ones that turned out decently, while the 'no brand' ones that end up on Ebay have a larger chance of being a hit or a miss?
At least that is how I always hoped it works, so they would at least have some justification for charging a bit more, instead of just preying on ignorant people.
Because I have held ISIS parts and 'Ebay' parts that were completely identical, down to the stampings and spots in the material that made it obvious they were made in the same place.

DJ-of-E

It is also true these manifolds crack under high street compared to brand name. You have see how it was made from fit to finish. A metal works fabricator could make one for $600 and could be just as good as Greddy and he would show you what material used for its construction.


Isis turbo exhaust manifold is not bad. You just need to clean up some of the messy welding jobs. Some of welding spikes hurt. I wouldn't trust intakes because you need to really be keen on making sure the surface and welds are as smooth as possible. Little weld flakes can destroy the intake valvetrain and maybe cylinders of the engine.


On my current 240sx, I do not use those lower control arms because I would like to drive on the street sometimes. A lot of the stock suspension is designed to handle daily road abuse where these aftermarket arms, which still strong, doesn't hold up well against train tracks. Also paired with energy suspension bushings that binds and you're asking for world of trouble.

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ixfxi

Exactly. The thing that sucks about this forum is that most of the people are just consumers who maybe have played with a part or two, and they think they are justified in stating their opinions as facts. The fact is, Aaron is a fucking master mechanic and works on cars day-in and day-out. So, if you're going to support shitty parts, you better bring some facts to the table as to why we should value your opinion. I'm not saying this to talk shit, I'm saying this because I despise most aftermarket parts and love OEM quality. And as someone who works on cars on a daily basis, I can tell you first-hand that the majority of problems I see are from shitty aftermarket parts. I take pride in micro-analyzing everything that falls into my possession and I *always* find serious flaws with shitty aftermarket parts. And I'm not talking just about shitty tuner/racer parts, I'm talking aftermarket OE-equivalent parts like you would find on RockAuto.


Dude, before this gets messy... let me help you out.

You are a cheap fuck. Smart people dont value a part based on how much it costs vs how much HP you make. A McLaren F1 isnt 100,000 times faster than a 240SX. A 20" dick does not give a girl double the pleasure of a fucking 10" dick. Seriously, how fucking stupid can you be. Here are the reasons why you should spend $900:
1) Because Greddy designed and manufactured that component
2) Because its high quality and not flawed
3) Because its the right thing to do

In the end, it doesnt matter because you suffer from CFS (cheap fuck syndrome) and you're going to support some shitty slave-labor company, which in the end will probably result in motor failure which will cost you much, much more in the long run. Dont worry, you wont be able to figure out which part failed on you because all of the parts on your jank car are all shitty. You could say its a collaboration of shitty parts, resulting in a piece of shit car.


Matej ...... you seriously want to know the truth?

Because Enjuku gives you free stickers with your purchase.


Ah yes, I always wanted to look like a fucking douchebag.

waxball88

Greddy "Designed" and "Engineered" their catch cans too. So i should buy those empty boxes of shit with the pretty logo that are not a true catch can because they designed, engineered, and made them.
I hope a bad casting in the ebay can doesnt blow the welds on the intake manifold.

Corbic

I already see where you are going - so go re-read what I said. I made no defense of, nor attack on "knock off parts". I'm just sick of hearing about them. I'm sick of their champions telling the world how awesome they are and how everyone should lay-off. I'm sick of the JDM-Brandwhores bitching about how "knock-offs" ruined the scene and are responsible for the deaths of millions of teenagers.

Aaron is a master mechanic? Whoop-De-Fucking doo. Does that mean he has hooked up all the SR20DET intakes and rocked the flow-bench to see what flows best? Has he done a tooling and quality sustainment study of the manufacturing process of the Chinese casters that make the knock-off intakes? Does have GD&T data on an impact study for the parts and their assemblies?

No, I bet he's seen some shitty made parts and some good made parts. Obviously good made parts are better.

Once again my friend, re-read my statement. I have a long history of playing devils advocate and being rather pragmatic on the whole "knock offs vs name brand". I can also put my money where my mouth is with my own build.

Don't forget install. Even with quality parts it's hard to replicate the precision of factory assembly and install. "built engines" are a great example. I've seen dozens of "built engines" with top-notch parts fail because the builder was a more or less "experienced non-professional builder" and something just ended up not "perfect".


That goes without saying. 3rd party stock parts are utterly garbage built to the lowest bid. You also have to remember that the 3rd party companies do not have any access to original drawing, specs or testing requirements. I learned that back in high school working on cars. Cheap metal, cheap fasteners, cheap rubbers, terrible dimensions and tolerances.

Corbic

Next time you have the chance, you should take photos.

My personal experience is more with the FMIC parts. I've personally seen plenty of eBay and ISIS FMICs, they are absolutely not the same, nor are the pipes. There is also a big difference in various ebay FMIC.

GarageMaks14

This is what's wrong people these days is nobody takes pride in their car anymore.

People go by Price over pride now a days.

Sure we all know everyone has a different level of expendable income to dump in their car but spending more of a quality name brand item that you know isn't going to fail on you and the pride of having a legit part is all worth it.

Ikea Formula intake plenum (3k)


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FAILSPEED(ching chong china special) 150-500