Project Cars or Member’s Cars sub forum for the build threads so readers can follow the creation or re-creation of a high performance Caddy. Whether it is a CTS-V, a 1970 Eldorado, a Northstar powered Eldo, etc. , an organized way of finding and enjoying and learning from others who have the need to modify their rides for performance or racing.
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We baselined our car a few days after we got it and made 417hp/405tq on a Dynojet. With a bit of tuning and ramping up the boost we made 520/506tq. We then added FASTERPROMS downpipes, which resulted in a 550/533 — with no additional tuning — after more tweaking to the spark and fuel map, we were rewarded with a 558/539. We then added FASTERPROMS drop-in filters and cut out the air box and added AlkyControl methanol injection and made 580rwhp and 560rwtq. The GM PCM was complex in its methodology for managing torque. It will bleed off boost or limit spark advance or shut the throttle if it sees more torque than commanded, and most of the time you cannot just command more.
More then likely it your data link by pass they have very good reputation more then like installer error. I'm not a expert but I know a guy who is Lessco Electronic his name is Martin he deals with alarms bunches of you tube stuff. He's from New York Area now lives in Florida he can help you
check those knuckle bushings.
Dont even have to lift the car.
Grab ahold of the top of the tire and pull in and out. If you feel play and hear noise they are shot.
I have had to do them on every e/k model I have ever dealt with.
Replace both upper and lower. Enjoy the new ride.
Shocks will loosen as they get exercised. That is normal. They are air right?
Only other thing that would make a bad ride is the springs in the rear but I have never really had any issues with them
Monroe spectrum for my 92 eldorado 4.9 from eBay or rockauto 63.47 shipped from eBay no problems or codes. But Logan has knowledge as well struts I've mentioned are directed ride control replacement also change my mounts done labor myself on ground just be careful with spring compression. Here's a good question for you are sure your purchase from strut master are correct ones for ride control? I've took a look on there site before making my purchase just recently all they seem to deal with was selling from active aka ride control to passive for deleting ride control for front? I'm not caddy tech by far but believe it does make a difference. Logan or dude call caddy tech body fisher from this site have better input this site is by far the best Cadillac sites lot of newer models but they still help with early model like we own. Personally would trade my off for anything purchased year ago it was rough but foundation was there made improvements little by little . No regrets
This sounds more like the worn rear knuckle bushing problem to me. There is a MOOG service kit available. Funny you mention the rear...its kinda always the same description about the rear end dancing around...it's been posted here before.