soo.. what can i remove from the intake mani.

[cf_z]

so im boosted, and midaswell do it right. i got my hands on an extra klde manifold, and i wanna know exactly what all i can remove, and what is doing me no good anymore. i know the vris valves can be taken out, but what else?

A, ok, i understand these are vacuum canisters for storing vacuum, but the line is coming from the vris solenoids right? so if the vris is deleted, do these still need to be there? i could use that vac port for something else then. if they still need to be there, where do i plug them into?



B, this is where the line from the canisters come from. so its supposed to plug into a vris solenoid right?



confused.

[KING6]

If you wanna keep the EGR, cruise control, charcoal canister or FPR solenoid.. you need to leave the vac chambers on. If your not using any of that, you dont need the chambers.

Just plug the hoses that went to the VRIS solenoids.

[Car-InsanE]

king can also gut the manifold for ya too prob

[cf_z]

Originally Posted by KING6

If you wanna keep the EGR, cruise control, charcoal canister or FPR solenoid.. you need to leave the vac chambers on. If your not using any of that, you dont need the chambers.

Just plug the hoses that went to the VRIS solenoids.

ok.. so basically i should just leave them and run them back the way they are now with the manifold on the car?.. i also thought the fpr soleniod had its own vacuum spot on the #5 intake runner. but basically all i should have to do is run it from the 'B' line i made, just connect that to the EGR vacuum soleniod sence thers no more vris lines to T off of?

im looking at a vacuum diagram, and all it says is "purge control" for the one soleniod left. Whats this for?

i got the VRIS plates out, and all the vac lines and whatnot all off.

[KING6]

Originally Posted by Car-InsanE

king can also gut the manifold for ya too prob

I could, Ive done many.

ok.. so basically i should just leave them and run them back the way they are now with the manifold on the car?.. i also thought the fpr soleniod had its own vacuum spot on the #5 intake runner. but basically all i should have to do is run it from the 'B' line i made, just connect that to the EGR vacuum soleniod sence thers no more vris lines to T off of?

im looking at a vacuum diagram, and all it says is "purge control" for the one soleniod left. Whats this for?

i got the VRIS plates out, and all the vac lines and whatnot all off.

Your right, FPR solenoid uses the vac off the runner.. either way you dont even need that thing Its doing nothing for you now that your boosted.

The purge solenoid next to the VRIS vents gas's from the charcoal canister into the intake. If you dont want to remove the charcoal canister, EGR and cruise, just hook everything back up as normal.. and plug the 2 hoses that would have went to the VRIS solenoids.

[cf_z]

mmk. well the CC is already gone, i have no idea what the charchol canister does. i know i went thru alot of BS to keep the EGR when i put in the headers.. even though im not 100% sure on how it actually helps me either. haha.. i should read up on this stuff!

but while were here, is there anything else i can do to it while its off? port? anything?


also, whats the best way to clean the outside? sandblasting?

[cf_z]

according to this both VRIS, and the EGR vac lines come from one port. they all 3 just T off, so wont even have to plug anything right? just straight from the port to the EGR?

[KING6]

according to this both VRIS, and the EGR vac lines come from one port. they all 3 just T off, so wont even have to plug anything right? just straight from the port to the EGR?

yes just bypass the T

both the CC and EGR are emissions/fuel economy related. The CC just vents vapors from the gas tank into the intake. The EGR vents exhuast gas's into the intake.

cheapest way to the clean the IM is a wire wheel brush and ginder setup.

There is not much else you can do unless you have the equipment to gut it

[cf_z]

ya i assummed the wire wheel was gonna be my option..

just use degreaser for the insides?


also, jason (evil demon, who i got this mani from) just told me i dont even need the elbow any more. (edit: its quite obvious to me now that i actually look at the design) Should i just weld plates over the holes and leave the elbow off?

[KING6]

Leave the elbow on. you definetly need it. The rear plenum for the rear runners is smaller then the front plenum. by removing that elbow you will be sacrificing airflow to the rear runners since the front plenum is larger. I dont know how to explain it better, but you need it to equalized the airflow.

eh, I shouldnt say you NEED It, but it would be the better option. Obviously you could weld it and the motor would still run the same, but you might lose some power

[cf_z]

oh.





... well thanks for setting me straight haha. so anything on porting it?

im hoping swapping them wont be too hard.

[KING6]

good luck with "porting it" all you probaly will accomplish is ruining the mating surfaces, creaking leaks.

ive seen people square out the runner flanges to match up to ZE heads. Thats about it.

otherwise there is alwase the option of removing material to allow more volume





















Degreaser doesnt do squat on the inside of the IM.

[cf_z]

thats pretty wild.. i dont think im gonna go that far

[The_Evil_Demon]

My bad for saying to remove the elbow. Wasn't sure if that was still needed for the boosted cars. I know the ze mani done with out the elbow i believe. King how did you weld that back on to alum?

[KING6]

I used a mig spool gun, It doesnt weld very well to cast no matter what I do.. So most often I doubled welded them and sanded the welds down to blend to the IM.

The ZE manifold is a different story. And its the best option (right after a custom manifold) It has a larger inlet, no wall in the plenum and the VRIS remove very easily. The reason you dont need the elbow on them is because it has a center chamber that one of the VRIS valves sit in that equal out the manifold.