Intake Manifold for Turbo 420a

[nairb_sd]

after research there is show and go. i'm not really good at this so i was just wondering what would you guys recommend the best intake manifold over stock would be for turbocharged nt engine. thanks

 

[GSGoinFast]

after research there is show and go. i'm not really good at this so i was just wondering what would you guys recommend the best intake manifold over stock would be for turbocharged nt engine. thanks

i would say you save some money and just P&P your stock one. it will give you similar gains and save a boat load of money

 

[JWoodley]

gasket match everything and take out the injector humps and you will like what you feel. =) also, id check into a 60mm TB, then you can open the mani up to 60mm as well and really feel a big gain.

 

[DSM-ZERO]

www.fastfabrications.com has the BEST intake manifold for the N/T 420a your stock TB will fit and a 60mm will fit also
it only coast $350 this the one I'am going to go with

 

[Urban_S]

OBX has a nice one that runs about 250 shipped. It accepts up to a 66mm TB. It's shinny too.

 

[jayden1]

i agree with the porting and polishing of the stock one. I port manifolds and heads all day long. I wouldnt reccommend taking out the hump for the fuel injectors. If you port one make sure its as smooth as possible for the turbo setup. Any other setup simply leave it a little rough for turbulence reasons.

 

[SnoopySLR]

If your going boost, isn't it better to have a venom intake or something? I don't know if I'd trust OBX, its nice but I don't know about putting boost into it. Maybe under 10 psi would be ok. I have a ported manifold, and its GREAT! I'm getting a venom one with my turbo though.

 

[BlueMoonEclipse]

I would stay away from the venom unless you looking for shifts at 9k (do you run a standalone??)....i doubt you are.. most people found losses of power from venom since its designed for all out top end ..and the fact nothing bolts up right like the map sensor ect...OBX is a shiny peice of crap a poor copy of the venom...hell best thing if you NA is the FF sheet metal intake with shortened top runner....other than that the P+P and maching would do the trick..

 

[green95hrcgs]

At the most I would say get your throttle body ported or buy the one from Modern Performance. Other than that, I dont really think that you need to do much to the intake and head of our cars. HRC has made over 500hp on a stock head and manifold. You have to remember that out heads were designed by Lotus. At the Very most I think that you should P&P your stock manifold.

 

[Initial DSM]

Port and polish after extrude honed manifold or port your stock runners and get a FF sheet metal intake plenum; which also be made to accept 75mm tb that is only if you wanna go real crazy with 3" piping and huge ass fmic/ ridiculously giant turbo set up

 

[siueclipse]

the stock intake is the way to go. nobody has proven that any other aftermarket intake manifold will do better.