OBX intake manifold

[InfiniteGSX]

i could probably do it but they would go for about 350.00 each.............. and they would be a much better design not to mention quality.

Not worth it in my opinion, too costly!!! Just because there are minor issues with the OBX, doesn't mean it sucks and its a POS... Its just a peice that was just thrown together. Most likey mass produced by a machine and not by hand. There is nothing wrong with a modified OBX Manifold...

We don't own Non Turbo models because were rich. Its called Cheap Speed!

 

[Slippi84]

Not worth it in my opinion, too costly!!! Just because there are minor issues with the OBX, doesn't mean it sucks and its a POS... Its just a peice that was just thrown together. Most likey mass produced by a machine and not by hand. There is nothing wrong with a modified OBX Manifold...

We don't own Non Turbo models because were rich. Its called Cheap Speed!

Could not have said it better myself.

If money wasn't an option and I wanted to go as fast as possible I would still be in a 4g63t awd car PERIOD.

 

[InfiniteGSX]

Damn Skippy! or Slippi for you!

Plus, I mean... for 350, I can buy the tools, and materials I would need to make my own IM...

 

[Slippi84]

THE Q45 with a v8 is 90mm



http://cgi.ebay.com/ebaymotors/90MM...1136567QQihZ001QQcategoryZ33558QQcmdZViewItem

Don't believe everything you read on the internet my friend

The q45 is a 90mm OD' tb at the neck

 

[Slippi84]

Damn Skippy! or Slippi for you!

Plus, I mean... for 350, I can buy the tools, and materials I would need to make my own IM...

Lol yeah I have heard that before. Listen guys no one here thinks the thing is fine as is but you guys break down shit liek every mod is made to try and get you and everyone that buys it into the 9's. This is a NA car that your trying to make go fast keep that in mond. The fastest guy on here with a non all out race car is running like 11.09. I'm from the 4g63 pack as that's how I learned about dsms and let me tell you my last car working properly and tuned woudl have walked him and I am nobody in the gran skeem of things. I was within walking distance of 2 dsm's faster than mine. Take pride in your car hell yeah want it to go as fast as possible and try and prove people wrong but be realistic or else we end up looking like honda guys thinking they can beat trans ams that are worked without boost. That's enough ranting from me back on topic anyone else know how to make this thing flow better???

 

[4UH8ERS]

Damn Skippy! or Slippi for you! ...

, how cute slippi has a friend.

Plus, I mean... for 350, I can buy the tools, and materials I would need to make my own IM...

Yeah right, a tig welder, gas, and materials alone would cost 3 times that. Not to mention your crappy welding skills would probably make for a lot of wasted materials and a crapola final result. Be realistic.

 

[Slippi84]

, how cute slippi has a friend.



Yeah right, a tig welder, gas, and materials alone would cost 3 times that. Not to mention your crappy welding skills would probably make for a lot of wasted materials and a crapola final result. Be realistic and quit making retarded comments.

I"m sorry the thing didn't come from OBX as effective as your short shifter and oem heavy shift knob but trust me with the modifications we're talking about it will get the job done. AGAIN IF YOU DON"T HAVE ANYTHING ELSE THAT WILL MAKE THE OBX BETTER YOUR JUST CLUTTERING UP THE THREAD AND MAKING MORE BS TO READ FOR SOMEONE WHO MIGHT WANT TO DO THIS LATER ON!!

 

[all_motor_mike]

quoted from me.......... (with a little more)

ok here we go................ make sure the runners match the gasket along with the flange bolt holes, port atleast the first 3 "inches of the runners to get rid of that transition from runner to flange, not sure if they have injector humps but it they do trim them down some, put the throttle body that your running up to it and make sure the hole is centered and lines up properly............. and if possible radius the runners into the plenum floor.

 

[VelocitàPaola]

ok here we go................ make sure the runners match the gasket along with the flange bolt holes, port atleast the first 3 "inches of the runners to get rid of that transition from runner to flange, not sure if they have injector humps but it they do trim them down some, put the throttle body that your running up to it and make sure the hole is centered and lines up properly............. and if possible radius the runners into the plenum floor.

I doubt there's enough material to radius the runners like you're talking about. I'd cut the plenum open at the two bottom seams, weld velocity stacks on each runner, then bend and weld a new plenum altogether. It seams like an awful lot of work to salvage something with an originally poor design, though.

 

[Slippi84]

I doubt there's enough material to radius the runners like you're talking about. I'd cut the plenum open at the two bottom seams, weld velocity stacks on each runner, then bend and weld a new plenum altogether. It seams like an awful lot of work to salvage something with an originally poor design, though.

Thanks for the idea paul but I was looking to fix it as much as possible not redesign it even though we all agree that would be the bet route. Listen these things are a dime a dozen on ebay and what not if we can come up with a way to make them atleast worth putting on without coming out of pocket $300+ for a custom one than we acieved something. Everyone has just bolted them up and been content on how bad they are I"m trying to come up with a vfaq type guide to make the thing better that's why I uploaded pics from any angle I thought would help. At worse I"m out 20 bucs and some time but that's worth it to me to help out my fellow tuners

 

[all_motor_mike]

the manifold is all aluminum right?

 

[Slippi84]

the manifold is all aluminum right?

It's shiny metal I don't know if I would call it aluminum because who knows what obx did .


Edit: Yes it's all aluminum

 

[InfiniteGSX]

the manifold is all aluminum right?

Aluminum Foil, yes!

AHAHAHA JP!

 

[Slippi84]

anyone seen this done to help with fittment?

 

[Slippi84]

I know it kinda contradicts what I am trying to do but lighting struck twice. The manifold in the last picture I just picked up for about 150 shipped. Only reason I did it cause it was already installed and had everything setup ready to go AND it came with 450cc injectors so when I do go turbo I can use them if I don't decide to go portfuler

 

[eclipse RS-T]

let us know how it works out for ya.

 

[Slippi84]

By the way the new manifold is a venom not obx so that was also a insentive. I might even do back to back dyno runs to see the true diffrence without modding the obx then mod it as talked about then dyno it again.

 

[Blitzeclips]

By the way the new manifold is a venom not obx so that was also a insentive. I might even do back to back dyno runs to see the true diffrence without modding the obx then mod it as talked about then dyno it again.

Do the entire 420a community a favor and put it on the dyno to see what gains can be found.


That's what I plan on doing with Paul's manifold when it's released. See what kind of gains a tubular will give over the common log-style.

 

[Slippi84]

Do the entire 420a community a favor and put it on the dyno to see what gains can be found.


That's what I plan on doing with Paul's manifold when it's released. See what kind of gains a tubular will give over the common log-style.

Oh def. The dyno is not far at all. I can tell you now all pulls will be made at philly dyno I might even hit up some dsm guys to envite them to come see for themselfs how the manifold works. I'm still debating on doing this before or after the turbo conversition though. I think it woudl benefit more people to see what it does on a NA engine as most 420a guys are not turbo.

 

[Blitzeclips]

Oh def. The dyno is not far at all. I can tell you now all pulls will be made at philly dyno I might even hit up some dsm guys to envite them to come see for themselfs how the manifold works. I'm still debating on doing this before or after the turbo conversition though. I think it woudl benefit more people to see what it does on a NA engine as most 420a guys are not turbo.

Yeah I go to Philly dyno works or Car VErsion 2 in Newport.

 

[totaleclipse_05]

Here you go:

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=105965&mesg_id=105965&page=

 

[Slippi84]

Here you go:

http://forums.2gnt.com/dcboard.php?az=show_topic&forum=5&topic_id=105965&mesg_id=105965&page=

Yeah those pics were posted up already but thanks for showing us where they came from. To me grinding and polsihing and maybe adjusting a few holes so that a manifold will fit are worth it to me if the outcome is more power. Especially since I'm looking into stage 2 crower cams for this thing which shine up top which is the same plae a aftermarket manifold shines(hopefully )

 

[Locke]

Especially since I'm looking into stage 2 crower cams for this thing which shine up top which is the same plae a aftermarket manifold shines(hopefully )

Larger, shorter runners, with a high volume plenum, will yield gains in the upper RPM area. (such as with the OBX and Venom IM's)

 

[totaleclipse_05]

Don't know if it produced more or less power yet. Mark said he was planning on taking it to the dyno to find out.

 

[bullettdsm]

.....with a high volume plenum, will yield gains in the upper RPM area.

Oh man of great knowledge, can you please explain your reasoning . You guys know way more about the intricacies of air dynamics than I do.

'Appreciate,

MB