S10Wildside

The guy who's supposed to make the adapter I need hasn't. And I'm now going to put priority to getting my S-10 back on the road. I've been putting it off for three years. While coil packs on a gen 1 SBC are possible (using the LS1 electronics), it's going to be a little tricky to get it set up. I have no intentions of making or selling a kit. Because it's not as simple as setting up on a LS1 engine (where everything pretty much falls into place), I can only imaging the number of phone calls and email asking for support. Because no one else is doing this, I'm stepping up (in my available time) to make it work. I did make the decision to put a 6.0L gen 3 engine in my S-10, so it's a little less incentive...but I still want to make it all happen.

My focus is harness work...and that's enough to keep me overwhelming busy.

EFI Connection is working toward the gen 4 ECMs and the available time to do so is almost prohibitive.

S10Wildside

The factory harness will probably not be a good fit. Unfortunately you won't know until you lay it on the engine. Three conversions mentioned in this thread have eliminated the MAF sensor. The only harness I built with MAF was for Scuzz.

You'll have to make a custom bracket. This should be pretty straight forward. I'm building the harnesses expecting the coil/module to be located near the original 87-92 f-body TPI setup.

If you do not use heated o2 sensors, you'll throw trouble codes. You may be able to eliminate the trouble codes with EFILive (or other tuning software), but I don't know what that will affect. You can remove the post cat sensors (after eliminating them in the tune).

The 411 has two VSS outputs that can be configured in the tune. This needs to be addressed with the tuner.

Yes, the PCM can handle the cam, but will require custom tuning with data logging.

If you can find a way to incorporate the newer EGR to the TPI manifold, I suppose you can use EGR.

Be careful about a budget build. Any shortcuts can become frustrating when trying to make them work. "Expensive" is relative, but if you have all the equipment and knowledge to do it yourself, it can be done on a budget.

If you...

- have tuning software
- know how to properly use tuning software
- can understand wiring diagrams
- have experience with EFI systems
- buy used parts

... then you can do this conversion on a tight budget.


If you...

- have a new harness
- use new parts
- have a knowledgeable tuner

...then the swap will go much smoother.


Over the past few years I've talked with a lot of people who have had EFI conversion problems due to using used parts (a "good buy" on ebay). I see a lot of shortcuts that don't work out well. Please keep this in mind.

Dale

thanks for your response. Just going over a few of the things..

1. I thought thats the way the first swap was done was using a factory harness? Good deal on the maf delete.

2. Got it.

3. Ok. So spend the 100-120 up front cause I'm gonna have to go to them anyway.

4. So it will run it, just needs to be programmed for the proper cluster. Something I thought of last night, they can be adjusted for different gear ratios too correct?

5. Problemo, because that 750 up front will be the hardest hit, and I have ZERO experience with prom/ecm stuff. I would be more willing to spend the 750 if it worked with GTP's But then I still have zero experience.

6. This one I was more asking what has been done in the other swaps? Do we think trying to fab up the digital would be more efficient?

I have no way but to do this on a budget. I have lots of tools, space, plenty of wire experience(not full harness builds, but splicing two together), just not ecm/prom changing experience. So it sounds like this will be my downfall, and the biggest MUST HAVE.

BTW, are you referring to "gen 4 ecms" as the ones that have FFV in them?

S10Wildside

I've purchased a few sets of new heated O2 sensors on ebay for about $50.00 a pair.

What I meant by GM gen 4 ECMs are the LS2, LS7, and L92 ECMs. More specifically, the E40 and E38.

What is FFV?

iroc88lb9

FFV is a flex fuel vehicle.

btw mike,ya gotta PM.

S10Wildside

I replied...yesterday I think.

Dale

Iroc answered your question, Its an ecm that can run any mixture of gasoline/ethanol.

iroc88lb9

i sent another asking about how to send payment...

Dale

2 more questions

1. Crank pully. Is the crank pully the same on the camaro as 01-02 van? I can not verify this. Its also not on the list on page 1.


2. Vats? can it still be hooked up, or does it have to be bypassed?

Slow89Iroc-Z

anyone know the part number for the correct Vortec timing cover?

Dale

dont quote me on this, but I "think" its 12552557.

try (6) 10213293 bolts
and (2) 12551135 bolts


heres where Im trying to get info. Do we want to duplicate the zz3 or the zz4?
http://www.crateenginedepot.com/pdfs/SB_zzengine.pdf

scuzz

Junk yards are full of the 96-2000 or so 350 and 305 cores. A used one works great. Get the crank reluctor, distributor, coil, and maf while you are there.
Around GA, that's about 25.00-50.00 worth.
They got the funky lookin intakes with throttle body stickin up like a smoke stack, and the injectors are hidden inside intake. Dizy looks like a crab.
Ron

S10Wildside

I didn't receive a second PM. Please send email to sales@eficonnection.com.

The current price for a custom 3rd gen 411 harness is $600.00. I don't expect this price to increase in the near future. However, as the costs to make the harnesses rise, so will the price.

gta324

How about the CC? I dont like the gas smell when its not mounted.

Anyone that will be willing to help me get all the parts? Of cause I will pay for the trouble!

(Dont want to pay shipping for alot of small packages from diffrent sellers at ebay)



/N.

Justin89Formy

I could help, Ive done it before

Slow89Iroc-Z

Will these Vortec distributors fit behind a stealth ram. Its already tight back there with the small cap dizzy. Are they much larger then a small cap dizzy? Is there a way/instructions to mod the stock one with a cam sensor if the vortech cap wont work????

PonyKiller87

Craig or anyone else thats done this. Can you go into more detail as to what is needed to make a double row timing chain fit behind the vortec cover.

I have a 96 305 vortec in my truck and the timing chain is shot so I bought a summit double row that they said would fit. After reading this post Im not so sure.

Also, how hard would it be to convert my ecm from the stocker to this newer LS based one?

scuzz

Go read this forum, and it might answer a ton of questions. The guys on this forum have done your conversion several times.
http://www.pacificp.com/forum/viewto...ae996918c06668
Lextech, that posts here also has done a wonderful job on the truck changeover and has a spreadsheet built for the wiring changeover. Make friends with him. He knows what he's doing.

PonyKiller87

Thanks, that page has a ton of info on it.

But right now my big question is still what I need to do to make a double row timing chain fit. Any help with that would be great.

Dale

Craig moates was the one working on that. Seak his knowledge

Anniversary-Z-man

Read a page or two back in this thread...it looks like a .150" shim/spacer between the timing gear and reluctor should give enough clearance for the double roller.

shocker89bird

It's funny I was just discussing at lunch with a few friends about my options for computer upgrades on my 89 formula. Talked over whether megasuirt or the comamnder 950 was the best route and too bad I couldn't run an LS1 pcm. Now I have the basic answers I needed. Sounds liek you guys are working on what I need fro the double roller as well. I was jsut thinking how hopless things were and that I didn't want to do a third wiring harness but I don't mind if the benifit is going to be gen 3 technology.

I didn't know there were that many third gen guys in Illinois. Good to see.

85mcss

sooo... is there anything that would keep a person from buying a complete harness/PCM/sensors/etc. from an 01-02 express and being able to get close to startup without too many problems???

redcamaro83

check the nw indiana and south chicago board
for other il guys

scuzz

If you had all that stuff, you'd almost be there, except for harness. The original harness is a mess.
I started from that point and had to get S10Wildside to build a harness, but used all the rest of my stuff.
A package deal from junk yard is usually the first place to start. Don't forget timing cover, reluctor, harmonic balancer, dist, and coil.
You might get S10Wildside to use some of your connectors. Wouldn't hurt to ask.
Ron

weeoh5

I started reading about this conversion on here a couple weeks ago...you guys have made some awesome progress. I've also read the truck link. Got a couple of questions...one I've seen but not definitive answer. I'm converting an 87 formula but doing an engine conversion from 305 to 355 in the process. The 355 started life (before rebuild) as a 99 vortec truck motor so i have all the factory required parts...

1- got a HSR to go on the motor. will my crab distributor (99 truck) fit behind the HSR or will i have to mod the factory TPI one?
2 - location of ECM. I like the clean look of putting the ECM inside but could I locate it in the engine compartment like a 4th gen? Anyone got pics? Could I put it where my cold air box/charcoal canister is? (passengers side behind headlight)
3 - cruise control. Could diagnose my non functional factory cruise but I'd prefer to update to the later model type since I don't feel like having all the vacuum crap for the stock cruise. The truck style I think is controlled by the ECM? Might have been Body Controlled in 99 but I'd expect that in the 411 ECM, its integrated.
4 - charcoal canister. is it easier just to get the truck one and have it hooked up that way...looking to minimize the number of vacuum lines running all over the engine compartment (wish GM had thought of that in 87 )

Thanks for any ideas you guys have. S10Wildside...that is an awesome truck...will be contacting you once i've got some answers to order up a harness...got my 411 ECM already :rockon:

PS...got access to mitchell on demand if anyone needs wiring diagrams The ones for third gens aren't so great (factory didn't release good diagrams then) but the newer stuff rocks....