{"id":5109,"date":"2010-01-23T19:53:05","date_gmt":"2010-01-24T01:53:05","guid":{"rendered":"http:\/\/caddyinfo.com\/wordpress\/?page_id=5109"},"modified":"2010-01-23T20:00:09","modified_gmt":"2010-01-24T02:00:09","slug":"mods","status":"publish","type":"page","link":"http:\/\/www.caddyinfo.com\/wordpress\/caddyinfo-cadillac-articles\/mods\/","title":{"rendered":"Modifications"},"content":{"rendered":"

Cadillac Northstar Supercharger Project (discontinued)<\/a>\"\"<\/span><\/h3>\n

Performance Reports<\/a> AP22<\/a><\/span><\/h3>\n

Top Speed?<\/a><\/strong><\/span><\/p>\n

Northstar Mod Summary<\/span><\/a><\/h3>\n

Cadillac Northstar Exhaust Options<\/span><\/a><\/h3>\n

Northstar Peak HP Test<\/span><\/a><\/h3>\n

Northstar Intake Test – Airbox vs Cone<\/span><\/a><\/h3>\n

Northstar Dyno Results<\/span><\/a><\/h4>\n

1993 Eldorado ETC 295 HP Dyno<\/span><\/a><\/h4>\n

OBDScan tests<\/a><\/p>\n

What about under-drive pulleys?<\/span><\/a><\/h4>\n\n\n\n\n
Transmission Performance<\/th>\n Mark<\/a><\/th>\n 1:46 pm monday march 25, 2002<\/th>\n<\/tr>\n
From a reliable source at Powertrain Engineering, it will not hurt the transmission to lock in 2nd and redline shift 1-2. It just raises the line pressure in the trans which gives you the
\nfirmer shift. It does not override the \u00a0“torque management” used to protect the trans during the shift.
\nThis will certainly improve 0-60 and qtr mile times.<\/p>\n

Enjoy
\nMark 99STS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

RMS Performance Parts<\/a><\/p>\n

Info from Wheel to Wheel<\/a> — Mar 8, 2001:<\/p>\n

\n

Bruce,
\nThank you for your interest in our Cadillac related products.\u00a0 We are currently working on performance products to offer for the Cadillac DTSi and the STSi.\u00a0 These product will resemble the Tim Allen Designs DTSi that many enthusiast’s saw.\u00a0 We are hoping to have complete kits available in the next 4 – 6 months.
\nPlease bear with us during this time period.\u00a0 We will not offer any
\nproducts to the public until they have passed or stringent engineering and quality requirements.
\nMike Gauss
\nWheel to Wheel Inc.
\nAftermarket Product Development
\n<\/em>
\nTim Allen Design Car & Driver Article<\/a><\/p><\/blockquote>\n<\/blockquote>\n

Info from Pro-Tech Transmissions:<\/p>\n

\n

Bruce,
\nWe can build any Model & Year transmission High Performance and\/or Heavy Duty. We also cover Allante 89-93, Deville 87-95, Eldorado 87-95, Fleetwood 87-94, Seville 87-95 with our Pro-Tech Chip. On the Cadillacs we rage from 17-35hp gains & 30-45ft\/lbs of torque gains. If you would like to get more information you would have to send or call with a specific year, model, & engine size so we can give you an exact figure. You can reach us toll free @ 1-866-PRO-TEC1.
\nThanks,
\nPro-Tech Transmissions<\/em><\/p><\/blockquote>\n<\/blockquote>\n

Cadillac Hotrod Fabricators <\/a>— Mar 6 2001 Update: CHR specializes in use of the NS in Street Rods, not in the Cadillacs they came in.\u00a0 “We use only aftermarket computers that can be programmed via a laptop computer.\u00a0 The heads alone are worth 100 hp.\u00a0 The head and cam package is up to 425-430 hp.\u00a0 We have a 5.0L engine planned that will put out 650 hp with no boost.\u00a0 It is very expensive about 17K.\u00a0 The crank is being made now.\u00a0 Stay tuned.”\u00a0 Alan\u00a0 — in San Clemente, California (south of LA) Voice: (949)498-7000.\u00a0 They are also in the process of moving to a larger factory.<\/p>\n

Performance springs — www.eibach.com<\/a> Intrax<\/a> [Suspension, Intrax]<\/p>\n

Performance Chips — www.fastchip.com (93-95 engines only)<\/a>.\u00a0\u00a0 www.superchips.com<\/a><\/p>\n

With outstanding performance and superior quality, the Hydra-Matic 4T80-E continues to live up to the expectations of those who drive high-tech, luxury performance vehicles. Its electronic controls, viscous torque converter clutch and ability to handle higher combinations of torque and speed than any other front-wheel drive passenger car transmission in the world, make it the ideal luxury vehicle transmission.
\nAssembled in Ypsilanti, Mich., at the Willow Run assembly site, the 4T80-E is available on the Cadillac Seville, Eldorado and DeVille, as well as the Oldsmobile Aurora. Its adaptive shift quality is designed to provide the same high level of performance for many years.
\nShift timing is carefully monitored and line pressure is adapted to maintain optimum shift feel. This adjustment compensates for changes in the operating condition of the vehicle system, which occur naturally over time. The adaptive shift quality also adjusts for minor variations in each new unit, so that every 4T80-E will meet its customer’s
\nhigh demands for many years.
\nThe 4T80-E is mated to GM’s 4.0-liter and Northstar 4.6
\nliter engines.<\/strong><\/span><\/p>\n

Shine Street Aerodynamic Package “Tycoon” for the Seville<\/a><\/p>\n

Accel Wires<\/a><\/p>\n

\n

Time: Tue, 28-Sep-1999 14:34:03 GMT\u00a0\u00a0\u00a0\u00a0 IP: 209.154.225.181
\nMark Gogots writes:<\/p>\n

For all ’98-’99 STS owners, I have found an easy “free” mod you can do to really help your Northstar breath better. It takes about 30 minutes with common hand tools. If you installed a K&N filter, this mod will help even more.
\nIf you take your air filter out, you will notice a hole at the bottom of the air box. Believe it or not, this hole goes down to a “black box” that is COMPLETELY sealed. Go figure!? Not much fresh air coming through there. Go under the car, just in front of the driver’s side front tire. Pull back the plastic liner that covers the bottom. Be careful when pulling out the plastic plug clips – there are two at the bottom front of the front tire’s wheel well. Those should be the only ones you will need to snap off. Carefully pull back the liner. Once that liner is pulled back, you will see the “black box”. Cut the bottom of the box out. I drilled a few holes first,
\nthen used a hack saw blade and easily cut through the plastic. Sand the edges down smoothly. Once the bottom is removed, you will see the hole which leads up to the air filter. Finally, cut an approx. 8″ x 6″ hole out of the plastic liner directly under the box. GM was nice enough to give you an indentation to use as a template. Make the hole just large enough to allow the air to get up into the black box. Again, sand
\nthe edges down smoothly. Carefully pull the liner back into position. Clip the two plastic clips back into place and you’re ready to go! Optionally, I also removed the metal screen located in the throttle body to help further increase air flow
\ninto the runners. But it’s up to you if you want to do that.<\/p>\n

Net result is that the throttle response is MUCH better and the Northstar really sucks some cool fresh air now. Also there is a great sound when you
\npunch the gas – but not overly loud or annoying. Good luck.<\/p>\n

\n

Carol Heim writes:<\/p>\n

I just recently changed my plugs and wires in my 98 SLS and I upgraded to 8mm MSD instead of stock 7 mm, Might of been just the plugs but It chopped a sec. off my 0-60. I was just looking under the hood of my SLS one day. And There was a big oval shaped plastic cylinder connected to my rubber intake guide so I took it off and put a bottom of a cup in there to close the hole. I found that it was drastically reducing the airflow to my engine. I ran my car with it first and got a 6.6 0-60 after I ran a 6.45. So it shaved some time off and it also gives it some added gurr on the the way up and on the way down it gives almost a pocket rocket sound.<\/span><\/a><\/p>\n

Mods for Car & Driver’s One Lap of America Car, 1998:<\/a><\/p>\n

The Caddy wasn’t quite stock. Thanks to Scott Badenoch and his merry men at Delphi Automotive, the suspension electronics had been reprogrammed to provide a little more roll stiffness and a considerably higher threshold for the onset of the StabiliTrak spin-control system.<\/p>\n

We also used 18-inch P255\/45ZR Michelin Pilots (versus 16-inch P235\/60ZR Goodyears, the STS’s optional tire) mounted on a handsome set of BBS wheels, plus harder brake pads and a Borla exhaust system. The first two tweaks yielded more grip and shorter stopping distances in a quickie predeparture test — 0.84g versus 0.82g on the skidpad, and 169 feet from 70 mph versus 188 feet in our December 1997 test of an STS wearing H-rated Goodyears. The Borla pipes didn’t do much other than lend a wonderfully menacing rumble to the exhaust note.<\/p>\n

\n

Mods for the STSi “Cunningham” edition:<\/a><\/p>\n

While Cunningham and Cadillac are still evaluating additional modifications to the vehicle the initial features include:<\/p>\n