Cadillac Powertrain Control Module (PCM) Tuning Discussion, 93 to 95 Northstar Tuning in Cadillac Engine Technical Discussion; Originally Posted by med
I also looked at the exhaust side cam/lifter/tappet issue and I'm siding with AJ -- it ...
I also looked at the exhaust side cam/lifter/tappet issue and I'm siding with AJ -- it exists. It also explains redesign to rollers. How to cure that problem with flat tappets I don't know. Oil thickness (fix by sumping? if due to starvation), high heat condition (reflow cylinder head?), ZDDP/additives lacking (Clarkz71?), or dare I say crappy motor and just give up altogether. Just some thoughts.
Run a good diesel oil, I use Rotella 10/30 and/or use GM EOS or the
Valvoline synpower additive.
I just got a e-mail back from Wester and for the way I want to go with my Engine they said to work on the Exhaust side of the cam. Also have been talking to a pcm company to see if I can replace the Cadillac unit with there unit. Which they offer some direct replacements for gm car. It sound like a lot of work but I got time to burn there software is plug and play which I like so we will see.
Yah. The added lines help to compare the graphs of the 2 motors. LD8 spends more time (over the RPM range) above 250 ft/lbs (never below?). Both motors seem to be best in the 3200 to 4400 RPM range. It would be nice to overlay graphs, etc. to see which gives best area under the curve.
Is Westers and Fastchip the only tuners for the 93-95 Northstars?.....Can my local GM tuners do it to or is it Taboo and exclusive?........Ya know what I mean? And what HP are they claiming? Also what parameters are they changing?......I have a 2001 STS, but Im asking, cause Im frustrated and may get a 95......Any response would be graetly appreciated (preferably from obd1 owners, with experience)......
I have the chip in my car...planning on selling the car though!!!
Anybody know where I can get a used transmission pretty cheap? I'm going to sell the car but the transmission is out and I figured I'd get more out of it with a cheap transmission installed. If I have to pay 2500 for a new transmission and only get 3000 out of my car then its not really worth it.
Automobile(s): 1994 Cadillac Eldorado Touring Coupe
Re: 93 to 95 Northstar Tuning
AJ - Would you have any interest at all in tuning my 94 Eldorado ETC? I am willing to pay you cash money to do this. Let me know, I can't message you yet as this forum is setup with a retarded "feature" that won't let me PM people until I have 30 posts. Let me know, thanks!