Anyone have a pic of the EGR valve on 99' GAGT 3400?

[JohnyG]

Hey

I am currently planning on swapping in a 3400 motor into my 92' Cavalier Z24 5spd. I heard that the motor which will fit the best is the one out of a 99' Chevy venture of Montana minivan, because of their egr valve.
I was wondering if anyone happened to have a pic of the egr valve on their 99' GAGT, since grandam 3400 motors are more readily available than montana and venture motors.

Thanks;

-John

[Blackrider]

Hey dude you are on revscene aren’t you? Anyways I'm GAGT on there. Currently you are not going to be able to swap the 3400 into your cavy with the 5 speed. You could probably do it with no problem if you were to mate up the 4T45 ATX. The 3400 Uses a PCM Powertrian Control Module, witch controls the transmission as well as the engine and if you mate it on to a 5 speed you are going to be running into a hell of a lot of computer problems. I think that is my biggest complaint with my car is that it doesn’t comes in 5 speed.

EDIT: The EGR Valve on the 3400 was the same in any vehicle from 99-2000

[aleroboy]

Originally posted by Blackrider
Hey dude you are on revscene aren’t you? Anyways I'm GAGT on there. Currently you are not going to be able to swap the 3400 into your cavy with the 5 speed. You could probably do it with no problem if you were to mate up the 4T45 ATX. The 3400 Uses a PCM Powertrian Control Module, witch controls the transmission as well as the engine and if you mate it on to a 5 speed you are going to be running into a hell of a lot of computer problems. I think that is my biggest complaint with my car is that it doesn’t comes in 5 speed.

EDIT: The EGR Valve on the 3400 was the same in any vehicle from 99-2000

Not to be mean but your totally wrong on both things.

JohnyG, you plan on using the computer out of your car correct?
if so you will have no troubles mating to the 5 speed.
Your flywheel and everything will work.

You have to use the wire harness and sensors off your old motor as well as the fuel injectors and wire harness for them.
You won't be sfi but you will have everything else.

The 99 EGR valve is very close to the design of the older models but still will not work. the 99 style sandwiches onto the manifold and mounts horizontal. the 00 plus mounts vertical.
You will either need to make and adapter plate or just block it off and leave your egr valve plugged in but not hooked up to the manifold.
The 00 plus manifold I belive to be a better design. It would also be easier to make and adapter to this style of EGR mount.

Michael with www.fastfwdperformance.com is working on such adapters. I'm just not sure when he will be finished with them.

The minvan style 3400 is close in design as far as mounts and belt routing go but its prolly best to use your front cover and mounts.
You will need the powersteering resevore off a 3100 or 3400 car. the 2.8/3.1 one does not have enough clearence for that plenum design.

There is a bunch more info I can give ya on this swap such as what to do about fuel system and the computer programming.
If you have any other questions about this swap feel free to pm me.
I helped my friend swap the heads and itnakes of his 2.8L to 98 3100 sfi heads and intakes. turned out quite well
also www.60degreev6.com is a very helpfull site as well.

[JohnyG]

Thanks for the reply.

Blackrider: Yep im on revscene (winnipegheights) :)
As aleroboy allready stated, its possibly do mount it to the 5spd, although I will still have MPFI.


Aleroboy: Im planning on using the stock computer, and possibly get an chip burnt.
Im pretty much doing the same thing as Rick did on his Car, at http://www.spookything.com

Rick told me I can use the 3400 injectors, the harness will have to be rewired. Ther are some sensor 3.1L sensors that I will have to use, and some off the 3400. Read that thread by Rick on 60degreev6.com about 4 times, its quite intresting :)
Also heard about the adapter plate that fasfwdperformance.com is workign on, but Colin (V6 H.O) informed me that it wouldnt take long to make an adapter plate. He lives only like an hour from here, so when he gets back from his vacation, hes going to help me with this :)

"The 00 plus manifold I belive to be a better design. It would also be easier to make and adapter to this style of EGR mount."

As far as people have told me, the injectors on the 2000+ cars changed in size, think they are a bit smaller, but im not sure if that includes the 2000 models.
BTW, my username on 60degreev6.com is 2quick4U.

I allready ordered the mounts/instructions from rick, should be here in a few weeks :D

Rick is suppose to email me a pic of the egr valve on his 3400 motor soon, so maybe I'll just look at the motors at the junkyard to see if they are similar.

Thanks for your input.
With any luck I'll have this beast running by spring.

-John

[aleroboy]

I'm not sure on the 99 injectors but the 00 plus are even a defferent style of injector.
they have completely differnet plug ins and look lots smaller than a boschstyle injectors.
dunno if there is a flow rate difference or not.

[Blackrider]

I am going to start listening to you and you only Aleroboy There is to much mis information on this site

[aleroboy]

Originally posted by Blackrider
I am going to start listening to you and you only Aleroboy There is to much mis information on this site

:p There is lots of good info on here but lots of mislead info as well.

[Blackrider]

Just another quick question, Why can we mate up a 5 speed to out car? I know the computer is a big problem still cant we use a older computer, I know we would have no speed sensative steering and some other stuff but is is possible???

[aleroboy]

well
The biggest thing was computer and wiring.
now I've found someone for the computer and I can do the wiring (just really hate it) so I might change my car over to a stick.
it has been brought up that the tranny I want to use cant hold the power.
but if you've ever seen turbo Z24's car then you would think twice about that.

it would take lots of custom work and lots of cash. this is prolly why it has not been completed yet.
but it has been atempted.
just not. sure what happend.
that person ahs since fallen off the face of the earth

[JohnyG]

You would probably also need custom tranny mounts, but I could be wrong. There was a 5spd. 3.1L (MPFI) in a N-body right?
You could use that tranny, but im not sure if the frame of the N-body changed much since then.
I dont really know much about the Alero/GA, but im learning ;)

-John

[aleroboy]

pretty much custom everything
mounts, halfshafts, wire harness
tons of fun stuff
this is prolly why I havent done it yet.
but might be a good idea with my supercharged motor.

[bszopi]

There are several ways to overcome the computer issues to run a 5-spd with a 3x00. One way would be to piggyback the stock PCM and an older 3.1L ECM with a 5-spd MEMCAL. Then, there is the way mentioned by just wiring up the old ECM to run the 3x00. The motor won't care either way since there is no such thing as a "OBD-II engine". The OBD-II just refers to the ECM... the engine could care less. I had my 3100 running off of a 92 3.4L DOHC ECM with 3.1L code, but we were experiencing some tuning problems, so I decided to go with an aftermarket stand-alone ECM instead (which I should HOPEFULLY start installing this week). Then, this summer the 5-spd swap will begin. And yes, there will be alot of custom work involved, including mounts, half-shafts, wiring, etc. But, in regards to this thread, bolting a 3400 up to a 5-spd in a early 90s J-body will not be a problem.

As far as the EGR goes, I just finished my 3400 top end swap onto my 3100. I blocked off the EGR port, and even kept the EGR unplugged, and have yet to set any codes. If you get a custom PROM burned, you can have the EGR disabled and then you won't have to even worry about it. Just not sure on your emissions laws up there.

I was going to refer you to either Rick or Colin, but I see you have already looked into both of them. They both have great setups. Good luck with your project, and keep us up to date here and at GMForums (60degreeV6.com). Oh, and case you hadn't figured it out... I'm bszopi on 60degreeV6.com, the Performance area moderator. I've seen you over there before.

[JohnyG]

We dont really have emission laws here in manitoba, only thing is that cars 95 and up need a CAT :p

Rick was just telling me how you might get a bit more performance with the EGR, since it reduces combustion chamber temperatures, which is basically the only reason I would want it on there.
I believe colin just has his sensor plugged in, without having the egr hooked up, and his car has been running fine.
Hopefuly I'll get it done for the big 60degreev6 meet :D


-John

[jaketuff]

Originally posted by JohnyG
Thanks for the reply.

Aleroboy: Im planning on using the stock computer, and possibly get an chip burnt.
Im pretty much doing the same thing as Rick did on his Car, at http://www.spookything.com-John

How is the car running for Rick now? Has he quarter miled her yet?

Pat

[JohnyG]

Another guy had the same thing done by racetech in toronto, and he was running 15 seconds flat.
Rick told me his car is running allright after he did some tuning, but he still has to smoothen some things out, I guess its still too cold in toronto to do that :p

-John