who is actually running a fake greddy intake manifold off ebay?

[migsk8]

how do you like it, i know there was a thread already on this sorta thing but its hella old and they have some new ones. so i would like input from people that are running these manifolds. if you dont have one you should not be in here, plus your input will automatically not count.

what sorta things have to be done before they are good enough to put on the motor?

[Kalypso]

basically you have to grind out the insides and scuff/sand it to make sure its smooth.

there will be little pieces of casting debris and metal shards that can get sucked into the block.

search

[migsk8]

basically you have to grind out the insides and scuff/sand it to make sure its smooth.

there will be little pieces of casting debris and metal shards that can get sucked into the block.

search

i cannot believe you come in here and tell me to search when im asking for peoples opinion on a topic. im not asking how it works, i want to know what they think of them NOW! in this present day and time

[Kalypso]

what sorta things have to be done before they are good enough to put on the motor?

[migsk8]

[QUOTE=Kalypso123][/QUOTE]im talking about now days not back in 2006

[migsk8]

ttt, i want answers

[codyace]

Save/Work another week, and then get the Greddy

[karmakaze]

i cannot believe you come in here and tell me to search when im asking for peoples opinion on a topic. im not asking how it works, i want to know what they think of them NOW! in this present day and time

i think the same as Kalypso123.

i have one and after doing that work to it, it is fine.

[IanS]

Save/Work another week, and then get the Greddy

[migsk8]

i think the same as Kalypso123.

i have one and after doing that work to it, it is fine.

ok so just buy it, get a dremmel and get to work pretty much right, and what do you guys mean by polish and jank? cuz im gonna buy one that is already polished, it matches my turbo :]

[Kalypso]

you can also get them in with a gold polish,

looks really sick, but the greddy is better all year round,

or atleast the topspeed mani

[inkslingers13]

you can also get them in with a gold polish,

looks really sick, but the greddy is better all year round,

or atleast the topspeed mani

actually its a plating not a polish. its like a nickel/chrome. if you clean up the inside and match the ports they do just fine. i got a peace of **** ebay one for 120$ shipped and polished the whole thing by hand and its perfect. just alot of work.

[240life]

polished outside does nothing. you could get better results with the stock intake for about 50% less $ with tool die your gasket a scribe and some dremel bits..working the runner ports. ebay intakes would require the same amount of work to flow as efficiently with as this and with some more elbow grease and a few more dollars you could probably get better results than the greedy intake.

[IanS]

polished outside does nothing. you could get better results with the stock intake for about 50% less $ with tool die your gasket a scribe and some dremel bits..working the runner ports. ebay intakes would require the same amount of work to flow as efficiently with as this and with some more elbow grease and a few more dollars you could probably get better results than the greedy intake.

That depends on what your going for. The short runner length of most aftermarket manifolds helps increase peak horsepower, while a longer, factory runner will produce better torque. I will never switch to a short runner manifold because Im not willing to give up that much driveability just for a hp figure.

[240life]

That depends on what your going for. The short runner length of most aftermarket manifolds helps increase peak horsepower, while a longer, factory runner will produce better torque. I will never switch to a short runner manifold because Im not willing to give up that much driveability just for a hp figure.

very good point, that is why i would just port the stock intake, i would rather have the torque for the streets. high horse power means nothing with out good torque to push your engine to it's limits.

[jr_ss]

very good point, that is why i would just port the stock intake, i would rather have the torque for the streets. high horse power means nothing with out good torque to push your engine to it's limits.

There's no sense in porting the stock intake manifold. The only thing I would do to it is, port match and then have it extrude-honed... Smoother flowing air into the cyl. I bet with that you could pick up a good 10-15cfm...

[240life]

that is what i meant...port matching the runners with the gasket...i couldn't remember the name for the honing process.

[Kalypso]

There's no sense in porting the stock intake manifold. The only thing I would do to it is, port match and then have it extrude-honed... Smoother flowing air into the cyl. I bet with that you could pick up a good 10-15cfm...

whats the best technique for port matching the sr, can it be done at home?

[Koshin]

Out with the Freddy, in with the Greddy.......

[Kalypso]

$700 for an intake manifold is stupid..

[240life]

it can be done at home, you should use machinest dye around your ports, then lay your gasket in it's final position. secure your gasket with tape and lightly scribe the runner ports where they are exposed. using a dremel or air power drill remove your excess material finishing with a fine grade bit. i plan on doing this to my intake as soon as i upgrade my compressor.

[IanS]

it can be done at home, you should use machinest dye around your ports, then lay your gasket in it's final position. secure your gasket with tape and lightly scribe the runner ports where they are exposed. using a dremel or air power drill remove your excess material finishing with a fine grade bit. i plan on doing this to my intake as soon as i upgrade my compressor.

Be careful to use a gasket that fits the ports on head perfectly. Cheapo gaskets don't fit either port well, some are larger then both. Its not necessarily about making the ports larger, its making them match that matters.

[kentuckyslider]

After research, the top speed is the best for the money, IMO. It is $309 from JGY http://www.jgycustoms.com/240sx/underhood.htm.

I am still questioning the decision to go with the short runner after market mani?? I am making more tq. than whp and I haven't decided if the gain in whp is worth the drop in torque??? Since switching to the 4.36 R&P my car is very strong at lower rpm and has much more mid range(naturally). With the new low gear I'm leaning towards tomie 270 cams and the top speed intake for more top end at the drag track. The 4.36 just gives the SR a lot of mid range power vs. the J30 3.91 that I had previously. If I still had the 3.91 R&P I would have went JWT S3's and honed the stock mani for more mid.

[migsk8]

pretty much all the manifolds from ebay are top feed arent they ?

[kentuckyslider]

top speed !!!!!!!! not top feed?????????

[migsk8]

no i really ment top feed, but now i come to find out that the stupid greddy manifolds knock offs are side feed i think, but im just gonna buy this http://www.jgycustoms.com/240sx/fuel.htm which should fix it........i think, lol

[240life]

Be careful to use a gasket that fits the ports on head perfectly. Cheapo gaskets don't fit either port well, some are larger then both. Its not necessarily about making the ports larger, its making them match that matters.

Yeah I try to use Nissan parts or better no auto zone crud on my car...I sure got some good info in this thread...thanx

[AndrewMinervini]

i dont think it really matters its not that much of a hp difference than a cosmetic upgrade it looks so much cleaner under the hood but for performance and cleanliness just get an s15 intake manifold like me and grind on it a bit still looks like a tank sitting there but has the long runners