Vortec swap into 57 chevy need help

[Spdfrk1990]

My dad is restoring a 57 chevy for a guy and he just brought over the frame and drive train today. Well im not sure of the different years of the vortec but it looks exactly like the one in our 98 Z71 silverado. Now all he has is the motor with all the sensors and the painless vortec wiring harness no ecu yet. I want to be able to tune it and remove the egr and some things but I have a v1 and I dont think it work with the 98 style vortec computers. What would you guys recommend is there a ecu I can buy that will hook up to the vortec harness and work with the V1? I can take pictures tomorrow also. I tried to talk him out of it for a TPI intake the vortec intake is fugly.

[ScarabEpic22]

I think the 0411 PCM is the one you want for this, but Ill let the more knowledgable Vortec guys answer this one for sure. You can do a lot more with the 0411 PCM vs the 98-00 Vortec PCMs, that I know. I think the 0411 PCM can be used with V1, but Im not sure...

[Spdfrk1990]

Cool thanks for the reply.

[Spdfrk1990]

I also noticed the harness only had a spot for 1 O2 sensor.

[Spdfrk1990]

Can anyone else confirm on a ecu I can use?

[Lextech]

I agree. The 12200411 PCM with the two 80 pin connectors would be the way to go. Is your harness set up for the 96-97 5-Plug PCM or the 98-2000
4 Plug PCM. I have a wiring conversion file for either PCM as installed in trucks. PM me your E-Mail address and which PCM type your harness is set up for and I will send you the wiring file. The tune that you would need for the 0411 PCM is from an 01-02 Express Van. I have tunes with the 4l60 or 80 trans I can send you. EFILive supports this PCM and has Custom Operating Systems for it. I have been running the 12200411 PCM in my 98 5.0 4l80e GMC twin turbo truck for over a year.

[ScarabEpic22]

Glad to know I was actually right. I dont know if V1 works with the 0411 PCM, I looked at the Supported Vechicles list and see a bunch of Express vans, and the 01+ are V1/V2 as they are a LS1 based PCM, but the 98-00 ones need V2. I would think since the 0411 is a 01+ PCM it should be fine with V1...

And from what I hear, COSs are whats up, unfortunately my I6 probably will never get one. :(

[Spdfrk1990]

Its setup for a 4 plug ecu.

[ChipsByAl]

Spdfrk1990 you can also use PCM controlled electric fans if you want. What do you have planned for the fuel delivery system?
Al

[Spdfrk1990]

Not sure yet on the fuel delivery supposedly he already has a tank with a pump in it. He has a really nice aluminum radiator with electric fans and the aluminum radiator support so that will be an awesome idea. Im not sure this painless harness has a spot for fans though ill have to check it out again. Another thing the 700r4 tranny is setup for a cable driven speedo what part will I need for the vss hookup? Also if needed I could probably have him return the 4plug for the 2plug harness.

[Spdfrk1990]

Just looked on the painless site. http://www.painlessperformance.com/webcatalog/catlarge/fichart.jpg?117,94
He has the 96-99 harness im sure for the CMFI now the 99 and up for the ecu you guys are talking about isnt it made for a different style intake also though. Says the 99-up intake is SFI.

[ChipsByAl]

The vehicle's speedometer will dictate what type of gear/sensor will need to be in the transmission. If the gauge will be electronic you will need to install a reluctor and sensor on the transmission. This signal can go to the PCM for better driveability and a clean output to the electronic speedo.
Al

[Spdfrk1990]

The vehicle's speedometer will dictate what type of gear/sensor will need to be in the transmission. If the gauge will be electronic you will need to install a reluctor and sensor on the transmission. This signal can go to the PCM for better driveability and a clean output to the electronic speedo.
Al
So I guess if we use the stock guages I can just use a cable and the ECU wouldnt have to have that signal?

[Lextech]

The 0411 PCM will want the speed sensor input regardless of what speedo you use. I'm sure the engine will run, but the VSS signal is an important input. Why not use a 4l60e or 80e trans that the 0411 will control and have the speedo converted internally to electronic?

[ChipsByAl]

Good recommendation Lextech. The electronically shifted transmissions are much easier to set up and more plentiful. You can then use a "Cable X" adapter to drive the speedometer. Not to promote but this is it. http://www.abbott-tach.com/cablex.htm

[Spdfrk1990]

Ok the fuel pump it has is a walbro gss340 no lines or anything are ran yet. Not sure what psi the vortec system needs to run at but I guess ill prob want to regulate it before the hookup at the intake manifold.
Some info I found
GSS 340 (high pressure 255):

244 lph @ 40 psi
217 lph @ 60 psi

[Lextech]

The distributored Vortec engines run at 58PSI.

[Spdfrk1990]

The distributored Vortec engines run at 58PSI.
Thanks

[ChipsByAl]

The Vortec has its fuel pressure regulator inside the intake manifold. I would recommend replacing the entire fuel injector/regulator/fuel block assembly if it has been sitting for a while, especially if it was open to the elements. It is available as a dealer item only part number 93441235. This assembly has the new design injectors that are not the poppet style.
Al

[Spdfrk1990]

Why replace it? Do the seals do bad Im sure sure he will not like the idea of spending 240 dollars on that.

[ChipsByAl]

The injectors stick at times and cause misfires. If you have the engine out or not fully wired in, it is easy to do now. If it is for a customer, do you want to have it return? How many years old are these injectors? At 240 bucks for a complete new set and regulator (that was prone to leaking) it is cheap insurance for peace of mind.
Al

[Spdfrk1990]

The injectors stick at times and cause misfires. If you have the engine out or not fully wired in, it is easy to do now. If it is for a customer, do you want to have it return? How many years old are these injectors? At 240 bucks for a complete new set and regulator (that was prone to leaking) it is cheap insurance for peace of mind.
Al
Thanks its possible it might be new ill have to ask him cause there is still a label on the wire.

[markgammel]

If it has been sitting along time I would replace It but if it hasn't then I would try it.

[Spdfrk1990]

The car will turn over but it is not getting any gas. They are getting spark though im thinking its this injector issue since they have still not replaced it. Is there anything else you guys think it might be though? The pump is working correctly and they are getting good fuel pressure. Prob best to start out with the new reg/inj then go from there you think?

Thanks,
John

[joecar]

Also check all the injector circuits with a noid light.

Question: is VATS entering into this...?

[Spdfrk1990]

No VATS I dont think its a junkyard ECM out of a Blazer 6cylinder. Its what the painless harness called for and it has an aftermarket column.
Ill have to pick up a noid light I dont have one.
This thing was soo messed up the owner had someone else do the frame and the motor. Well the flex plate was on backwards and they grinded the weights off lol.

[Spdfrk1990]

Hey thanks for all the info guys but they got it running today he told me the timing was out 180 degrees. Doh lol well at least its running now this thing was a nightmare a lot of issues where someone started the work. There was not even a bolt holding the harmonic balancer on :Eyecrazy: .

[joecar]

Cool... :cheers: ...I love it when a car does start...! :rockon:

So your crank sensor is reading of a balancer mounted reluctor wheel...?

[Spdfrk1990]

I think he said the dist was off 180 and the crank sensor is on the outside of the timing cover so I think it is reading off the balancer. The motor is just like 5.7 vortec that would come in a 98 silverado I think everything is stock parts on it.

[markgammel]

I Had a v6 in a toyota Painless wiring harness and some of the wires for the injectors were in the wrong place