help with some performance mods plz

[robertisaar]

if you're sure you are NOT going to be boosting, then the obd1 swap will be fairly straightforward. i should know, i'm writing the guide for it as we speak. the only things you will need are a PCM from a 91-93 w-body with a 3.4, or from any 93 w-body with a 3.1(not a cutty with a 3100) and i think a 94 lumina with 3.1. i'm pretty sure those are all of the vehicles that use the 16149396 PCM. in addition, you'll need a way to adapt the existing wiring harness to the new PCM. the easiest way: read my guide, when its done and it lists a description and the part numbers for EVERYTHING. the cheapest way: cut off the existing connectors and solder (crimping 1. looks bad, 2. isn't as strong) in the connectors from the 91-93 PCM.

thats about it... well if you want it tuned(which i would suggest, but it will run without it) then you'll need a chip made, something i'm also developing.

to swap to obd2... don't know, never tried(obd1 works perfect for what i need) it but other members here have done it...
overall cost to convert to obd1:

16149396 PCM: maybe $30 from a junkyard
the pcm plugs for the 16149396: if your yard is nice, you only need the plugs and about 24" of the wiring sticking out of it, otherwise, they'll probably not want to sell it without you ripping out the whole engine harness. i've had the plugs + wiring get quoted for $20.
depending on what route you want to go, that is potentially everything.

if you want to be able to remove it and convert it back to stock(should you sell it and want to keep the adapter, or it gets wrecked, or some other reason), then you need to make an adapter, which is what i describe how to do in the guide.

total cost to make the adaptor: $50 or less, depending on where you get the parts.

chip: i would charge around 75 for a custom chip. obviously a 16 bin switch tune would be more, but this isn't the place to discuss that.

so depending on what you want to do:

OBD1: $50-$175
EDIT: since you edited your post, i might as well update mine: this will work fine with a manual tranny, but a turbo is something you can't do with this setup alone.
but you will also have other problems to solve trying to hook up a manual(due to no 94-up w-body ever coming with one from the factory)

[jonnyextream]

so all ill need is a pcm and the plugs connected to it?? and i can swap the 3400 in with some mods and get the chip retuned for the whole setup?

after thinking about it i dont want to do a manual tranny swap on this car so i think ill buy i different car for the turbo setup down the road plus this car will be my daily driver so i want it done and ready to drive as quick as i can


and where can i get this guide??

[robertisaar]

so all ill need is a pcm and the plugs connected to it?? and i can swap the 3400 in with some mods and get the chip retuned for the whole setup?

after thinking about it i dont want to do a manual tranny swap on this car so i think ill buy i different car for the turbo setup down the road plus this car will be my daily driver so i want it done and ready to drive as quick as i can


and where can i get this guide??

that is the cheapest way, its a pain in the ass, and you don't have to wait on parts to get shipped, but it is the cheapest way. and swapping in the 3400 wouldn't be a problem either, so long as you keep the parts from the 3100 that are necessary. and i'm still writing the guide, it won't take that much longer.

[jonnyextream]

sweet thanks for the help and advice
i was just wondering what cam would u go with, where can i get some headers and who can do a tune for the chip??

[robertisaar]

cam: check out WOT-Tech(its right under the gigantic ass 60v6 banner at the top, and its also the official store for 60v6 in case you didn't know, run by at least SappySE107, i don't know who else if anybody does)

headers: no one makes any headers for 60v6 motors(except maybe pacesetter, and thise aren't cheap and have fitment issues), so those would be custom

tune: any competent tuner should be able to get it running good. since WOT-Tech doesn't sell a chip for the OBD1 conversion, i mention myself, since it won't be stealing business away from the store.

[jonnyextream]

cool i was trying to decide between like a stage 2 or 3 cam (unless someone else suggest otherwise)
and is there anyone here who can make me some headers??
and that would be so sweet if u did the tune because i dont know anyone else who could do it and do it right

[bszopi]

S&S Headers makes headers for the 3x00 in GAs, Aleros, Malibus (99+). They have been adpated to fit other body styles as well, including W-body and L-body cars. You can order them through MP Racing:

http://www.mpracing.org/store/index.php?act=viewProd&productId=340

[robertisaar]

my bad, i forgot about s&s. still, there are fitment issues that will need to be addressed

[jonnyextream]

cool i was wondering if those headers could work now i know
but which cam would u guys recommended for this setup???
and should i eventually do a 3500 top end swap on the 3400??

[robertisaar]

if i remember correctly, the 3500 UIM flows better stock than a 3400 UIM. don't quote me on that though, i'm sure brad or ben will chime in to agree or disagree...

cam... i really don't know, how much power do you want to give up in the low-rpm range?

[jonnyextream]

maybe a little but not to much being its an auto but i was thinking of using the 1429, 1161, or maybe the stage 3 otherwise it looks like ill lose to much bottom end

[robertisaar]

well thats the beauty of automatics: higher stall torque convertor. its manual cars with ridiculous cams that are tough to keep on the street.

i couldn't give you a whole lot of info on the cams though, i'm used to reading cam specs for SBCs, 60* is a bit different. honestly i don't think the stock cam is all that bad, but there is room for improvement. i'm sure it would also help that already sweet exhaust note as well.

[jonnyextream]

i think ill start with the 1161 and go from there (unless somebody else suggest something better)
i haved had to much luck with finding higher stall converter do u know of a company that sells them and their not to overpriced??

[robertisaar]

i don't know of any company that makes them, but its probably going to be like most other options for these powertrains, find something from a different vehicle: example: find the largest, heaviest vehicle with a 3100 and it will probably have a higher stall speed than your GP.

[jonnyextream]

cool so ill do a obd1 swap, 3400 swap with the 1161 cam, headers and 2.5 inch exhaust then eventually a 3500 top end swap

when is the obd1 wiring guide going to be done cause i would like to be the first one to see it plz