86 305 tpi automatic, stock bottom end, removed smog pump and AIR tubes. adding World 305 heads, summit tpi cam, slp headers. what chip before i have it all back together? the guy that's putting it together said Hypertech stage 2. I don't have the time to toy with buying the equipment to burn my own. i also don't feel up to spending 350 on something i'm not sure will work. thanks

 

yellowiroc2

I was running almost the same setup and had a hypertech chip. I just called them about there tpi chips and told them what i was running and they sent me out a specific chip for the engine combo cost about $230 and works great.

Hope this helps,
87Irocz




[This message has been edited by 87Irocz (edited September 04, 2001).]

 

I just called Hypertech and they said they didn't have an off the shelf chip that'd work. He said they'd do a custom burn for 400.
I also called performance resource and the guy said their perf. chip is pretty aggressive and should meet my needs for $210, if not i can send it in towards credit on a $425 custom burn.
what should i do here

 

Guys, I would look for cheaper custom chips, I've seen them around for much less than $400+.

------------------
1990 Pontiac Formula 350
Rebuilt 355
COMPCAMS 212/212 .440/.440 cam
Flowmasters 80 series.

 

Well, the only thing that may need attention is due to the cam, depending on the grind, you may not need much PROM editing via Hypertech, etc.

I'd suggest before you spend your hardearned dollars, run the stock chip and monitor the ECM's functions, get a feel for the new setup and what else you may want to tune...

I/e say you have no ping/knocks at all, and the O2mvs indicate a good mixture, you may jsut want to have the timing curve adjusted for a little more oomph.

I can just about guarantee you that there is not an off-the-shelf chip that will be optimum for your setup, so if you're looking for all you can get from the ECM, you'll need to pay for a custom burn eventually, learn to do it your self...or go with the old standby of adjusting the base timing and playing with the fuel pressure.

 

who else beside fastchip is less than 400 for a custom burn?

 

now that im thinking about it the timing did have to be ajusted after I put in the hypertech chip. I wonder if the chip I bought had any differences at all. If Mike is right and the stock chip does work with just ajusted timing. I paided $230 for stock chip and I thought I was robbing them it did seem really low. keep me posted on how the stock chip does.

Later,
87Irocz