ebay knock off intake manifold

[shmiddy]

has anyone, or is anyone using the e-bay knock off to the greddy intake manifold for the sr20? if so any problems with it or manufacuring defects??

[flip3d]

Casting sucks but some people have cleaned it up with a dremel and says it works pretty good. Search.

[shmiddy]

im posting cuz i searched but thanx for the info. what do u mean by "cleaned it up" whats wrong with it?

[240trainee]

I got one

looks like shit, but it should work. inside could use some dremeling out of burs and shit, and if you care what the outside looks like, it could use a lot of smoothing.

Mine doesn't seem to leak though, so it's all good with me. If mine does develop a leak or something though, I'll probably just go real greddy.

[alexander500]

The seams in the casting have extra bits and pieces, you will want to use something to knock these off and smooth it out a little bet

[shmiddy]

times are hard i dont think i can go for greddy right now. looks like a freddy intake manifold for me!!

have you guys had any problems finding a furl rail/ fuel injector set up to fit properly with the freddy?

[240trainee]

I had to cut a couple tabs off the stock fuel rail, you don't use them all on the greddy

and your gonna have to fab up a throttle cable bracket.

Other than that, I think everything is good.

[Big Bronze Rim]

I just finished installing one. Overall its ok but like mentioned, it does need work to be useable. The casting is rough inside and a tad bit rough outside. I cleaned mine up with a die grinder inside the ports as well as sanding down and rough areas and casting flash on the outside. Also my throttle body did not line up with the port when bolted on so again, more grinding was required. I should also point out that when I recieved it, there were metal filings in the intake from the holes being tapped. These manifolds really MUST be cleaned up before use - at best it'll look like crap, at worst you will kill your engine.
You will need to fab up a throttle bracket as well. I am using a SOHC throttle cable which, while a bit short (it runs across the valve cover), works fine.
Other than that, for $100 and about an hour of time I seem to have way less torque falloff up top and it makes changing the oil a whole lot easier.

[shmiddy]

any one feel like posting up pics of what you guys are talking about? maybe 240trainee's fuel set up and big bronze's grinding???

pos reped for u help

greatly appreciated

[sac]

haha.. i was going to do this. But then decided i am either going to build my own manifold, or buy greddy.

[Big Bronze Rim]

Sorry, I didn't take pictures of what I cleaned up. Just picture lots of roughness in the ports and the "seams" of the casting in the runners are rough and need to be smoothed out.

[efrain240sx]

I got mine of some kid who crashed his car, got it for only $30 :D . But like the guys said it needs to be grinned down allot because the casting sucks. Ooh and mine don't leak either.

[WILDACEX187]

do greddy intercooler cold pipes for greddy intake manifolds work with the freddy?

[Jordan-S13-Silvia]

yes they work perfect but their is an alternitive to the greddy cold pipe for 3 to 4 times less than a greddy coldpipe.

just look in this link only $25


and you musat use a S14 Throttle body pully 26$ from frsport.com.

http://www.courtesyparts.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=CP&Product_Code=320-1104C

[ichibans13]

i have heard of the freddy's cracking at the seams, or leaking. sometimes things dont line up right, because they're mass produced as cheap as possible. but i did have a friend that never had any problems with his. guess its just the luck of the draw.

[Big Bronze Rim]

yes they work perfect but their is an alternitive to the greddy cold pipe for 3 to 4 times less than a greddy coldpipe.

just look in this link only $25


and you musat use a S14 Throttle body pully 26$ from frsport.com.

http://www.courtesyparts.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=CP&Product_Code=320-1104C
Yup, that is the cold pipe you need. However, you don't HAVE to use the s14 TB pulley. You can make a cable bracket to locate your cable which will allow you to use the stock s13 sr pulley.

[shmiddy]

^^^ thats gold. i got a top mount turbo set up do inna have to make my own hot pipe

[s14_legend]

i would just save up & wait to buy the greddy one...your gonna end up paying for it later if something goes wrong...ebay stuff is always ebay stuff...ive seen them crack it aint pretty

[Big Bronze Rim]

i would just save up & wait to buy the greddy one...your gonna end up paying for it later if something goes wrong...ebay stuff is always ebay stuff...ive seen them crack it aint pretty
Are you talking about intake manifolds? It is documented that many tubular exhaust manifolds purchased off of ebay have cracked (quality manifold crack too though), I have yet to see an intake manifold actually crack. I have heard stories that the castings were so porous they would leak, but never crack. Not saying it hasn't happened, it's just the first time I hear of it. If you are willing to do the work that is required to make the Freddy manifolds useable, they are an ok deal. However, it is still quite apparent that if you want the highest quality, buy the real deal.

[TougeLabs]

just send me your manifold :) and not waste your time on something that will be useless...check the fabrication thread, towards the bottom of the page...just waiting on the cast centerline plenum but you have a choice to run a front mounted throttle body too :)
or be cool and go centerline.
also we can do a q45 or what ever TB you want.

[Bobafreak]

Good cost for a freddy but if you dont know what your doing and want direct bolt on get a greddy. I think that sums it up.

[jsasrsr]

If your willing to put alot of work into it, then yes, there pretty decent. But they come with all sorts of trouble when you get them. There rough, uneven, pitted, and burred all over the place. They usually are a nightmare to bolt up, and you have to fab up somthing to mount the TB on or weld it...

Your best bet would be to call up jspec.com and get them to order you a JDM intake mani for around $2-300 or so. I did that, welded on a 90mm wilson's ford mustang TB, Pc'd it and I get more airflow than any one person could use!

[240trainee]

I actually bought one and it bolted right up and is fine, I need to pull it off and smooth it out a lot, when I get a Q45 throttle body I'll clean it up and make it better.

doesn't seem to be bad at all though, but the quality control is horrible, some work some don't. Mine looks like shit, but works.

[Thursday]

i ran one, had some vacuum issues but other then that and the casting it was pretty much the same

[advin builtsr20]

my buddy is running an ebay intake manifold on his sr and has no problems whatsoever. He's pushing out 360whp and does not go lightly on his car AT all. He's had it on there for at least a couple years. No problems yet.

[shmiddy]

the only real thing that im worried about is the fuel injectors and rail bolting up properly.................................

[advin builtsr20]

my buddy has 550's on his that he up-graded too and had no problems with install of them. I'm not sure what company on ebay he bought his from cause so there's so many damn places on there selling the knock off of the manifold. anyways man, best of luck to you. Just remember, you can never go wrong with a real greddy...just broke for a little bit! But definitely not disappointed!

[shmiddy]

^^^ thanx

bump for more injector/fuel rail info

[Tearlessj]

I know someone thats making 450whp on a Topspeed manifold.

[Def]

I just finished installing one. Overall its ok but like mentioned, it does need work to be useable. The casting is rough inside and a tad bit rough outside. I cleaned mine up with a die grinder inside the ports as well as sanding down and rough areas and casting flash on the outside. Also my throttle body did not line up with the port when bolted on so again, more grinding was required. I should also point out that when I recieved it, there were metal filings in the intake from the holes being tapped. These manifolds really MUST be cleaned up before use - at best it'll look like crap, at worst you will kill your engine.
You will need to fab up a throttle bracket as well. I am using a SOHC throttle cable which, while a bit short (it runs across the valve cover), works fine.
Other than that, for $100 and about an hour of time I seem to have way less torque falloff up top and it makes changing the oil a whole lot easier.

I had the exact same experience with mine. Just a lot of sanding/grinding and test fitting things. Fuel rail bolted up fine.

Took me more than a hour to do all the grinding/sanding, but I was pretty anal about it and reshaped the TB port - which I think was shaped off the GReddy casting, but it sucked from a flow standpoint(lots of separation right past the TB). I also did an 80 grit finish all the way up the ports and at least a 1" radius into the plenum, and retapped all the holes(they were a little janky, and lots of chips in there).

I also had to grind a few of the manifold to head bolt holes to get them to line up, looks like they drifted on about half of mine. Not an issue, except it just took some time.


Overall, I'd still buy it over spending the $$$ for the real GReddy, which just seems very expensive given the size of the casting and the flow path just past the TB(if it's the same on the GReddy vs. FReddy).

[240srhatch]

just save up a bit more and get the real greddy manifold.!! its so worth it.. trust me on this one unless u love using your dremmel

[Def]

I probably would have ported it anyway, which is why I went with a FReddy.

[Big Bronze Rim]

Took me more than a hour to do all the grinding/sanding, but I was pretty anal about it and reshaped the TB port - which I think was shaped off the GReddy casting, but it sucked from a flow standpoint(lots of separation right past the TB). I also did an 80 grit finish all the way up the ports and at least a 1" radius into the plenum, and retapped all the holes(they were a little janky, and lots of chips in there).

Wow, I feel better I'm not the only one who was super 'type-a' about stuff like that. Sounds like we ended up doing about the same amount of work the get it nice and useable. I do think though that if you are willing to work with it, it's a pretty good deal.

[Def]

Wow, I feel better I'm not the only one who was super 'type-a' about stuff like that. Sounds like we ended up doing about the same amount of work the get it nice and useable. I do think though that if you are willing to work with it, it's a pretty good deal.

Yea, it took a little work, but I don't think it was unreasonable given the price really. The biggest PITA part was getting the throttle cable bracket perfect, and you have to do that for a GReddy mani too, so I wouldn't hold the poor casting against the FReddy given the price.

[Skaterjunky8]

I ended up just sanding and painting mine, no realy 'fab' work needed, except pretty much everything that goes on the manifold needs to be modified. The coolant lines to the Throttle body and IAC all need to be changed to londer lines, or bypassed all together (Personaly I just bypassed the TB but made longer lines for the IAC). Then there is a fuel rail, its pretty straight forward, but your gunna need some extra fuel hose. I put my grounds on the bracket they sent with the manifold (its a support for the alternator bracket) the Vacuum fittings gave me the most problems. The Brake booster fitting was way to close to all the Brake hardlines as they come down the fire wall, I ended up having to bend them slightly out of the way to get the fitting into the manifold, then getting the hose onto it was a PITA. Im not sure if I did this part right but, That little hose on the top of the valve cover, I ran to the back of the manifold, since its conection point is removed with the stock mani. Lastly was the Throttle cable, thisone took me some time, but I ended up using the stock SR one and modifying it, by flattening it out completely, then bending the tab up at the appropriate place. I also mounted it with only one bolt (!?) so that it would fit properly.

Issues: Only thing I can say so far that has me questioning a good purchase or not has to be the fact that my Vac. went up from 19 to about 15. I thinkthe more air flow might have made the computer pull timing a little or something. Anyone have insight on this?

[WILDACEX187]

will a bigger intake manifold lower vac? i dont think thats the case. check for vac leaks. hopefully u're manifold is not pourus. but u said you painted yours so it shouldnt be leaking through the manifold? :confused:

[Def]

You have a vac leak if your manifold vacuum went down. Mine was still at -20 in-Hg at idle with stock cams, and it's about -14 in-Hg with HKS 264 Step1's, which seems as high as anybody else gets.

[180sxLove]

These manifolds suck. Mine had alot of casting that was coming apart in the inside, i had to stick a ball hone in there and clean it up. Had to tap every thread on that piece of junk and it came with 2 fittings when the manifold has 6 holes.. WTF! The throttle body doesnt even properly align. Not worth the money or hassle..

[Def]

These manifolds suck. Mine had alot of casting that was coming apart in the inside, i had to stick a ball hone in there and clean it up. Had to tap every thread on that piece of junk and it came with 2 fittings when the manifold has 6 holes.. WTF! The throttle body doesnt even properly align. Not worth the money or hassle..

Expecting something 1/4 the cost of the "real thing" to have the same build quality is a little ridiculous.

If you aren't resourceful enough to come up with some 1/8" NPT plugs and so some minor porting, then it probably isn't for you.

[Z U L8R]

unless you flow test it you can't know.

the jun knock offs for the rb25's we've flow tested at the machine shop next door to our shop and they're ok, but i still chose the GReddy. the GReddy flowed better, fit better, and was easier bolt in with more room left over. plus it's a "real" mod instead of a "i got the cheap shit, and i HOPE it's better than stock cause it still wasn't cheap"

if i had another sr20 an intake manifold would probably be one of the last things i got after the gigantor billy bad ass turbo, rocker arm stoppers, stand alone, injectors, maf/map ^_^, z32 tranny.

i'd get an electric water pump before i got an intake manifold for the sr20.... and they do make em :D

on rb motors it's a different story. the intake manifold design hinders front mount intercooler piping/spool time. plus being right over the valve cover it heat soaks like a summabich. but for an sr....there's not that issue. so i don't see the point.

Dave =]

[smelly240]

i grinded mine a lot - and used a roloc on the outside then when it was smooth - i painted it black.

[Skaterjunky8]

FYI i smoke tested my intake manifold and no leaks, still have yet to figure it out, but it slides like a dream..haha