Help Please lol

[black heartbeat]

I wouldnt do a cam in that car simply because its so clean, keep it original and if you want to upgrade the valvetrain go with some ER rockers IMO. something that can easily be reversed and also no making the car any less streetable while picking up another 15 to 20 hp. I know with the v6s we would get about peal 20hp with ER rockers atw

[BOTTLEDZ28]

Im going to chime in here and I hope I dont come across like an ass. First off, I have been there and done that with these cars for over 10 years and the biggest thing I have learned is that all the bolt on parts are a waste of money and in the long run, they just make your engine run worse then the factory intended it too. The biggest culprit is the POS Eproms on the market. It is impossible to order a Eprom for your car and get the calibration correct over the phone or by filling out a tech sheet. I have 3 eproms here in my house that are JUNK and 2 of them are from Fastchip that I paid $350 each for back in the day.

Second, replacing OEM parts like sensors with the junk found at your local parts store is just asking for trouble. You will not catch me dead buying anything for my car in those places. I have learned the hard way that the sensors they sell are no where close to the quality of a new AcDelco part. You may not see a change by just replacing the TPS or even worse the O2 but a little here and a little there makes a huge difference at the end and now the engine is not running at its best because of little issues here and there.

I highly suggest you first get your car running correctly with the stock emprom and stock parts or you willl just be chasing your tail. I have never seen your car and I dont know anything about the mods done so please fill me in so I can offer my help to you. If your car is straight and clean and not far from stock and I would leave it alone and enjoy what you have because they are getting harder and harder to find in nice shape.

[BOTTLEDZ28]

Oh and I would NOT mess with your timing at all. Set it to 6 degrees and leave it. What is your fueel pressure set at? I also think your 52MM TB is NOT helping you at all. Trying putting the stock one back in and run the car on the dyno again.

Did you modify your MAF at all? Please say no

[irockidz28]

there is no "aftermarket junk" on the car for sensors or anything like that. i work at a gm dealership and everything that has gone on the car has come in ac delco "genuine gm" packing (even tho it says made in mexico on right on it lol)
the car runs great on the stock tune...i think that 182/267 at the wheels is a great running 86 305

um fuel pressure is just stock i have not fucked with that at all..so honestly idk exectly what it is? as for the MAF about a month after i bought the car it through a MAF code pulled it out and it had half descreened one side on its own...so i pulled the rest of the sreen off it so it didnt get sucked through the motor and i cleaned it at that point as well and has been that way for about three years now so i dont think thats my problem

i have never touched the fuel pressure so i dont really have any idea what the actual pressure is. and as for the tps i think it was at about .364 or something like that?

thanks for help and advice guys, any other imputs are welcome. ill keep checking things as i can

[SLP IROC-Z]

did you check the WOT voltage?

[BOTTLEDZ28]

You are looking for 0.540VDC +/- 0.075VDC on the TPS adjustment with the engine not running. The reading should steadily increase as you manually open the butterflies. If there is any erractic readings then your TPS is bad.

You should have about 4V at WOT. If its just under then you are fine. Nothing under 3.75 V though.

[irockidz28]

ok right now it is set at about .59x i did not check what it was at WOT i will do that tomorrow and check to see what it does as i open them

[BOTTLEDZ28]

you know, i was thinking about your car earlier today while at work and I must say that 182RWHP is not to shabby for a 1985 305 TPI car. Im not sure if you posted it or not but what Eprom are you using?

[Batman]

ditch the chip unless you get it dyno tuned, we had that problem with the GTA except we went from a 305 to a 350 and barely gained any power. Put the original 305 chip back in and it ran like a champ and gained 39HP and over 50ftLbs. IF the sensors weren't way out of whack that is most likely your problem

[BOTTLEDZ28]

If I had your car in front of me right now, I would pull the eprom and put the stocker back in. I would also put another unmodified MAF sensor back in.

And here is some food for thought for you. You say you are running headers right? Have you had the ECM scanned to see if the knock sensor is picking up any noise from the headers? I have seen that happen on these cars. If it is picking up a false knock then it will retard the timing a bit. You can say that the headers are not making noise but you cant prove it until the cars ECM is scanned and some realtime recordings are done.

And what made you decide to step up to a 1.6 RR?