505 Intake Manifold COMPLETED!

[MSPLIFE]

Hey thats true but is good to be ready just in case we get more threats on 505, he will be cover.

 

[joeleo1]

You guys are a little nutty; I want a manifold just as bad. However, you got to have a little more patience.

 

[2.0t03speed]

talked to rich yesterday and he told me hes driven on it more and everythign feels good. Also one more thing to note rich has had his egr unbolted form the new intake mani and tied to the fire wall and still plugged in, but he hasnt thrown a cel yet and its been 3 days. Maybe that will work as a solution to the egr cel

 

[magnumP5]

Also one more thing to note rich has had his egr unbolted form the new intake mani and tied to the fire wall and still plugged in, but he hasnt thrown a cel yet and its been 3 days. Maybe that will work as a solution to the egr cel

I've always wondered if this would work. I guess there's just enough air circulating in the engine bay to keep the EGR happy? Either that or he just hasn't put enough miles on it for it to realize what's up. Doesn't it usually take a 100 miles or so for the ECU to wise up?

 

[2.0t03speed]

hes driven over a hundred miles by now s*** the 1st time he took it out he said he drove it for 45 mins

 

[Viralphrame]

I've always wondered if this would work. I guess there's just enough air circulating in the engine bay to keep the EGR happy? Either that or he just hasn't put enough miles on it for it to realize what's up. Doesn't it usually take a 100 miles or so for the ECU to wise up?

That air is still unmetered by the MAF sensor...

 

[magnumP5]

That air is still unmetered by the MAF sensor...

No... the IM he's running doesn't even have a provision for an EGR so the whole EGR assembly is just zip-tied up somewhere in the engine bay. No unmetered air is entering his intake track at all.

 

[dominoy2k1]

ran a turbokit without egr beign connected. never got a cel due to egr.

 

[magnumP5]

ran a turbokit without egr beign connected. never got a cel due to egr.

Just left it plugged in and hanging (zip-tied) somewhere? This is what I'm trying to figure out if it works or not. Good to know.

 

[ForceFed]

Click ....click.

 

[BinoMP5]

i dont understand this EGR not being plugged in.... what side is unplugged? the IM section? what does this yield if its just roaming around in the engine bay? doesnt the air flow not flow smoothly?

 

[neox.286]

but removing the egr assembly you are directing more air into the turbo directly and redirecting less air back into the intake manifold

in theory it could result in quicker spool up times

the egr has also been known to screw with your idle if it gets dirty, but thats more of an involved discussion of why that is....basically, the train of thought is that the more simple the motor is (i.e. the less 'features' attached to it) the better it will run and the less chance of issues

this is half the reason why racecars dont have those features, the other half is weight reduction

 

[magnumP5]

^^^ EGR is only open at idle IIRC.

 

[ForceFed]

Grabs slide.....

 

[Velocifero]

but removing the egr assembly you are directing more air into the turbo directly and redirecting less air back into the intake manifold

in theory it could result in quicker spool up times

the egr has also been known to screw with your idle if it gets dirty, but thats more of an involved discussion of why that is....basically, the train of thought is that the more simple the motor is (i.e. the less 'features' attached to it) the better it will run and the less chance of issues

this is half the reason why racecars dont have those features, the other half is weight reduction

EGR is an emissions control, not needed on racecars as they don't have to pass emissions

 

[BinoMP5]

but if you dont have EGR, doesnt it cause pinging, knocking or pre detonation? or is all that some emissions control scare tactic to keep it on there... because if no one has had no problems... then i'm getting rid of mine when i put in a different intake manifold...

 

[505zoom]

Alright for clarification, the EGR on my car (right now for the testing) is not hooked up at all (other than the electrical harness). The port on the exhaust manifold has a cap on it, and the intake manifold does not have a port for it at all. The tube is completely removed from the car. I have the valve itself ziptied down near the battery, with the harness plugged into it.

I figured I would have a CEL from it by now, but nope (knocks on wood). 150 miles and I drove it in traffic a shitload today. Other than the P0507 code for the throttle cable being pulled too tight at first, I haven't thrown a code from anything.

I am filling up the car with a fresh tank of gas tomorrow, and then taking a 300 mile highway trip sometime this week. If anything is going to break or go wrong, it will hopefully do so during the trip. I don't want any of you to have any issues with this thing. It will also be nice to see what happened to the gas mileage (if anything).

Other than the slight bracket revisions and vac port tweaks, I am pretty sure we are ready to rock. I already have 20 each of the TB flange, head flange, and plenum floor plate being worked on, and those are the keys. Once those are done, getting the runners cut and the plenums welded up will go quickly. I won't let this project stop progressing like some of you are fearing.

Thank you to everyone for your interest, understanding, and patience with me throughout this whole thing. I am confident that it will be more than worth your while in the end. (rockon)

 

[neox.286]

no it will not cause pinging or predetonation....it just recirculates exhaust gasses back into the intake manifold in an attempt to lower the amount of exhaust fumes coming out the tailpipe

vel: yea, I was speaking more overall about engine 'features' in that statement, not egr specific

magnum: your probably right (I honestly dont know/care if it is open at idle or not lol)....but it has been directly linked to bad idle issues if it gets dirty

 

[magnumP5]

Awesome news Rich. Yeah, after 300 miles the ECU should know whether the EGR is functioning properly or not and throw a code if necessary. I still can't wait for this as this is going to be one of the last performance parts I buy for a while (along with some others). I'm going to take a break from the engine performance area for a bit before I jump to the next level with a built motor.

Any idea as to how much longer? I really want to get my FMIC installed but it would be nice to have the IM so I can make the pipes fit better (straight coupler instead of a 45 degree).

 

[2.0t03speed]

Lol im damn sure taking a break after this intake manifold hahaha. only thing im going get after this is possibly a ftc or a aem f/ic and im done ahah