New Intake Manifold

[Garret]

With all these talks of a new intake manifolds being built I thought I'd post mine

THIS is how a manifold should be built







Same guy also fixed my dipstick tube



Plenum has 4.5 litres of volume and is on a 2.2

[Rattlesnake]

Looks very nice to me I like odd looking things and also looks very efficient-purpose manifold . How difficult was it to installed?

[Frank]

Not bad at all! Very good skills! So are you going to put a bigger throttle body on it? It could really need it!

[LynX853]

awesome!
now the question is... can you make me one pretty please!?

[Clay]

any pics of it off the car?? I want to see the bottom half.

[Speedeuphoria]

looks good the only questionable part is that the tb shoots straight at the back wall of the mani

[Garret]

Rattlesnake, It installed just as easy as a 1 piece intake as that is what it used to be.

Frank, I put a 52mm TB on there I figure that's best for it for right now

Lynx, Yes I can make you one but It will cost you some money's but I can definatly get one made up for you, PM me

Clay, I forgot to take pictures of it off the car, but basically it's 6 inches of hogged out 1 Piece runners, with all the non runner material cut off it so it's just the runners and the flange. It looks pretty sweet as you can look through it and see the turbo.

[tryingbe]

Ballpark $$$ figure?

[shadow88]

looks good the only questionable part is that the tb shoots straight at the back wall of the mani

+1

When the throttle is opened fully, it's my belief that the entire charge system becomes a plenum. It'll benefit from the shorter runners. looks good.

[8valves]

+1

When the throttle is opened fully, it's my belief that the entire charge system becomes a plenum. It'll benefit from the shorter runners. looks good.

It has been proven time and time again outside of the TD world that a free flowing tract into the plenum area creates more equal distribution and less pressure drop.

On vehicles such as most of ours that don't have the capabilities of tuning each individual cylinder this is a big issue. The volume is nice, but a better transition into the plenum box is critical.

Having said that, you'll still see a large improvement over the stock piece, but there is still room to improve if you so desire.

AM

[Garret]

maybe next year or something but this is just a manifold we put together at work with maybe a total of 10 minutes worth of thinking into before we started cutting out metal to build it. Took maybe all of what 2 hours to build?

Ball park price figure would be around 150 CDN? or perhaps trade for some other parts

[phaxtris]

how much more of a 'free flowing' track into the plenum do you want, the TB has a straight shot into the plenum, and is 5" away from the back wall

[Speedeuphoria]

I would have the box mani then a 2 1/2" elbow out of it w/ the TB, like the modified 1 peices floating around here.

Or even place the TB on the end if clearance/cables arent an issue. Then you would have to have a 90 I/C pipe right before it any way

[8valves]

how much more of a 'free flowing' track into the plenum do you want, the TB has a straight shot into the plenum, and is 5" away from the back wall

How about a TB location that doesn't just let air hit a solid flat wall 4 inches from it's entrance to the plenum? That is NO room when you're talking airflow velocities that will be at that point.

I want a side inlet, or frontal, but must be blended into the surge tank area with a nice radius or taper. Inside there should be velocity stacks, or a machined floor to give a trumpet style inlet into each individual runner.

AM

[turbovanman²]

Looks good. Any before, after tests, dyno etc?

[shelbyplaya]

Looks good. Any before, after tests, dyno etc?

garret, dyno or test????? if he dosent melt anything it workds... hahahaha

[phaxtris]

you guys are all trying to over think this, this is not an NA motor, a good portion of its time is spent in boost, where velocitys, etc are not as important, mabye take for example the intake manifold on a 7mgte, tb faces a wall right away, no problems there, people still make upwards of 600whp on them

and velocity stacks! machined floors! LOL, when is the last time you cut apart an intake manifold from any boosted car, you tell me wich have velocity stacks and machined floors, because none of the ones i have ever cut apart have them.

mabye i should even refrence to old v8's, where the carb is generally 5" away from the floor of the intake manifold, and this is a fuel/air charge, not just fuel

im going to repete myself here, this is no NA motor, velocity stacks, all that kind of bullshit makes very little differance

[Dave]

you guys are all trying to over think this, this is not an NA motor, a good portion of its time is spent in boost, where velocitys, etc are not as important, mabye take for example the intake manifold on a 7mgte, tb faces a wall right away, no problems there, people still make upwards of 600whp on them

Not to dispute what you're saying because I agree, but it's because they have sexy flowing heads.

[turbovanman²]

you guys are all trying to over think this, this is not an NA motor, a good portion of its time is spent in boost, where velocitys, etc are not as important, mabye take for example the intake manifold on a 7mgte, tb faces a wall right away, no problems there, people still make upwards of 600whp on them

and velocity stacks! machined floors! LOL, when is the last time you cut apart an intake manifold from any boosted car, you tell me wich have velocity stacks and machined floors, because none of the ones i have ever cut apart have them.

mabye i should even refrence to old v8's, where the carb is generally 5" away from the floor of the intake manifold, and this is a fuel/air charge, not just fuel

im going to repete myself here, this is no NA motor, velocity stacks, all that kind of bullshit makes very little differance

I have to agree, I am not an engineer but that makes sense. I can't see how tuning will make any different when you've got the hammer down and 30 psi of boost is forcing its way into the intake.

[mech1nxh]

It has been proven time and time again outside of the TD world that a free flowing tract into the plenum area creates more equal distribution and less pressure drop.

On vehicles such as most of ours that don't have the capabilities of tuning each individual cylinder this is a big issue. The volume is nice, but a better transition into the plenum box is critical.

Having said that, you'll still see a large improvement over the stock piece, but there is still room to improve if you so desire.
AM

agreed, its a nice piece of quick fab work , I like it...

you guys are all trying to over think this, this is not an NA motor, a good portion of its time is spent in boost, where velocitys, etc are not as important, mabye take for example the intake manifold on a 7mgte, tb faces a wall right away, no problems there, people still make upwards of 600whp on them

and thats because the 7mgte has a "symetrical" plenum /tbody..i.e
no turn (and hence less chance for pressure drop)from body to plenum

and velocity stacks! machined floors! LOL, when is the last time you cut apart an intake manifold from any boosted car, you tell me wich have velocity stacks and machined floors, because none of the ones i have ever cut apart have them.

and you probably will never see one...that costs money, however F1 uses them exclusively...

mabye i should even refrence to old v8's, where the carb is generally 5" away from the floor of the intake manifold, and this is a fuel/air charge, not just fuel

lol..yeah carbs needed to be that close to some kind of "device " to promote
even a small modicum of fuel atomization..having said that...I was startled by the performance improvement the first time I added a 1" spacer below a carb to increase "plenum" area....and decrease pressure drop

im going to repete myself here, this is no NA motor, velocity stacks, all that kind of bullshit makes very little differance

please....with all due courtesy....Hillborn fuel injection (circa 1968??)
for small block v/8's had velocity stacks....

opinions submited with respects to all...