Greddy Intake Manifold

[NISR32.5]

Just want to know is the Greddy intake manifold better than the stock RB26 one?

Would the change be worth it for better flow?

Is there any other mods needed or can it be swapped straight over?

Cheers

[GTSBoy]

Are you hoping to make >600HP or something?

[LTHLRB]

the stock GTR intake manifold is plenty for a street setup

[Sinista32]

NO it isn't

[scotty nm35]

Ok... 500kw+ isn't enough for the street these days.

[NISR32.5]

Ok so I found out today that my motor has low comp on the 6th cylinder. Looking to start a rebuild and found a greddy manifold cheap, I'm looking to do a 2.8 stroker rebuild. Already have -5 turbos and was making 330kw atw. Might start another thread with the build details but was hoping to find out if the manifold was worth purchasing???

[scotty nm35]

The stock manifold is good for 500+kw, I would be putting the coin towards better rods and head studs.

[KiwiRS4T]

Here's a couple of 2.8 strokers making 450 awkw on conservative street tune with stock intake manifold (one with -5s one with TO4Z):

http://www.trademe.co.nz/motors/used-cars/nissan/auction-757017549.htm

http://www.trademe.co.nz/motors/used-cars/nissan/auction-745582841.htm

[NISR32.5]

Sweet cheers for that mate

[NISR32.5]

Those figures seem pretty high for a light tune on 98 aswell. I would have expected those figures on e85. Both cars have small injectors aswell.

[GTRPSI]

Stock manifold design tends to let #6 run leaner, get the better manifold and flow test your injectors then run the highest flowing injector on #6.

[bigmikespec]

So who can tell a fake Greddy plenum from a genuine? What are the distinguishing features?

For those that have a Greddy plenum, does the red Greddy decal come already fitted to the plenum out of the box or do you stick it on yourself?

[iruvyouskyrine]

Very easy to tell the difference between real and fake mate. The quality of the casting is a dead giveaway, the fakes are a bit rough with uneven dimples (for lack of a better word), and there is plenty of dags. The genuine ones have a very smooth and consistent casting and look much nicer.

[bigmikespec]

Thanks for the advice but I won't have a fake and a genuine to compare only the one I am going to look at. If anyone has any dead give away tips feel free

[Piggaz]

You buying a Greddy for your car, Mike?

[bigmikespec]

Might be, if it is real, lol... Send me a PM if you want to know what I am thinking.

Aftermarket jobs like hypertune and nismo just command too much money for performance benefit and good luck trying to get any CFD or other testing from either of those to prove what they advertise.

[GTRPSI]

Very hard to tell some copies, ive had both side by side.

http://www.skylinesaustralia.com/forums/topic/444211-ebay-plenum-for-rb26/

[3Katz]

So who can tell a fake Greddy plenum from a genuine? What are the distinguishing features?

For those that have a Greddy plenum, does the red Greddy decal come already fitted to the plenum out of the box or do you stick it on yourself?

It comes in the bag with all the other bits and you stick it on yourself

[XRATED]

The genuine greddy is a better unit for sure... by the time you port match, relieve the 'dimples' for the screws, have all the mating surfaces machined flat on a fake one, then you have spent more than a genuine one allready...

Saying that, I spent a few hours matching up my genuine manifold to the tb's and smoothing out the casting marks anyway.

...tbh, the main reason I wen't with a greddy manifold was because it's 2 pc and I can ballance the tb's more easily (and it has hand flat boss's to mount all my N20 nozzles on he he he).

J.

[LTHLRB]

NO it isn't

calm down pal