|
Finally got my MAF from Granatelli. Times
improved slightly(.08sec) I ran a |
||||||
|
4/14/2002 BIGGVJF@cs.com
Car: 94 sts w/ cone filter & superchips upgrade and
dynomax ultra flows and using mobil1 oil. G-tech pro. |
||||||
|
Luke tested his 94 STS with the G-tech in Sioux
Falls, SD. Temp was 19'F, Baro-30.5", |
||||||
|
99 SLS Driver: Robert Lange Total Weight with Driver: 4180 LBS Front: 2560 LBS Rear: 1620 LBS Fuel: 92 Octane Modifications Removed plastic shielding under airbox and air intake under airbox completely. Removed airbox completely and replaced with 7" long K&N Cone Replaced MAF with Granatelli MAF that has a removed screen and is ported. 3" diameter echaust pipe from the resonator on back, to a 2.5" Y pipe, to dual 2.5" Dynomax Super Turbo Flow Mufflers with Stock tips replaced. Mobil 1 Synthetic 5W-30 Sunday 4/14/02 3:30 AM Weather Conditions G-Tech Pro Data 1/4 Mile Runs Run # 0-60 1/4 Mile Speed MPH 1. 6.01 14.39 102.9 2. 6.08 14.46 101.8 3. 6.10 14.53 100.5 4. 5.98 14.36 102.7 5. 6.11 14.49 102.1 Front Wheel Horsepower Run # 1 250 Run # 2 259 |
||||||
|
3/2002 Dustin:
I ran two runs with the STS, just to get the feel of the G-tech.
Conditions were the same as with Rob. Weight was 4088 lbs. I just
punched the car and it ran: |
||||||
| We took the car (96STS) out a bit ago. Temp is 29'F,
wind at
15mph from N
(90 angle to car) and 72%Humidity. I raised the rear tires to 50psi and power braked to 1600rpm's for both runs. They turned out well, with the traction not turning on during the first run (??). That is alright, but it spun almost on into 2nd gear. Run #1: 0-60: 5.58 1/4: 13.78 @109.6 (YES!) Run #2: 0-60: 5.70 1/4: 13.9 @107.8 I have found the power brake helps, but will try more with the mods switched around. I'm thinking the 0-60 may improve with less wheelspin, so we're lowering the front to 28psi. I really do think these mods are doing well; at least I'm satisfied with them. Will do more testing on both cars and get back to you in a bit with Rob's car and mine! The gas tank is nearly empty with 90 octane fuel. It is getting some 92 with no ethanol for the next tests! Later- Dustin & Rob |
||||||
| After fidgeting with the car, we have some times for
you! And I
brought
the camera to take pics when the G-tech flashed the times. Temp-25'F, Wind-15-20 NW (90' angle to car), Humidity-70%, Barometer-30.20". Elevation-1380 ft above sea level. With all mods, 92 octane no ethanol gas. Rear tire 50psi, Front tire 28psi. Power brake to 1700rpm. Gear Selector left in 1st. Run #3 0-60: 5.34 s 1/4: 13.66 @110.2 mph (We were VERY happy with this!) Run #4 0-60: 5.59 s 1/4: 13.82 @108.6 mph For the last runs to experiment: Added stock MAF w/ screen and stock T.B. with ppr filter, but removed plastic for open air box, no TPS. Run #5 0-60: 6.3 s 1/4: 14.46 @101.6 mph Add Granatelli MAF (it has no screen) w/ K&N Run #6 0-60: 5.9 s 1/4: 13.9 @106.4 mph The Granatelli is certainly worth gains, as are the throttle body porting, K&N, and possibly the MAF delete. It shifts harder with the MAF gone, but the service soon light is on. This cold weather can't hurt anything, either. On to Rob's car. We'll write back in a bit! It should be noted the engine does its best when being driven ways with the temp guage at 1/3. When it gets hot, the times start rising. Bill said the polished heads help well with the air/fuel flow. The exhaust mods showed improvements on torque and HP, especially at 3500+RPM's. I did one more run for fun and it did a 13.8 again. So the mods to the car should be worth about 1 full second off the 1/4 mile. I have to get going back to SF, but Luke should have some times for you soon, if not tomorrow granted it doesn't snow more. thanks a lot! Later- Dustin S |
||||||
| I purchased a TPS enhancer and
did runs with and without and difference is not measurable, but I did
learn something else. All of my runs previously have been trying to
avoid wheel spin as much as possible, but after reading Robs' post on
the runs they have been doing. He got the best results just letting the
computer take over, so I thought I would give that a try. Ironically my
times are better just nailing it and let the computer do its
thing. Times and conditions as follows: All runs with full tank of gas. 4/04/02 Locked in "2nd" Temp. 42F Humidity - 55% 1st run -5.78 2nd run--5.74 3rd run 5.76 All with a lot of wheel spin and traction coming on. If I got some decent rubber (currently Goodyear Integrity) I think times would come down a lot. Also I forgot to upshift to 3rd and the computer auto shifted even though I was locked in 2nd. Interesting! Will let you know when I get new MAF installed with updated times. Thanks Mark |
||||||
| NOTES on Wheel Hp versus Crank Hp A chassis dyno, and meters like the G-tech Pro or AP-22 measure horsepower at the wheels (WHP). Conventional wisdom for an Automatic Transmission is that around 20% of the power is lost to the transmission and drivetrain. When Greg Garnes dyno'd his 4L w/4T80e, he got 189/250 hp, for a 24.4% loss. When Hotrod dyno'd an ETC they got 216/300 hp, for a 28% loss. So the Cadillac 4T80e probably has 24-28% losses, which is high. By comparison, a GTP w/4T65e dyno's at 190/240 hp for a 21% loss. With a 20% loss, a stock 300 hp car should put out around 240 WHP, (and a 275 hp engine 220 WHP). The bottom line, though, is how much power you have at the wheels. Power at the crank is both hard to calculate, and does not have much meaning if you do. I think if we continue to collect performance reports and report WHP we're focused on the right thing. |
||||||
|
||||||
| Bruce's 1996 STS
Performance Best so far: 14.78 ET at 101.4 mph G-Tech Pro See AP22 review for more info and updates |
||||||
| Bruce's 1992 STS Performance Best so far: 15.57 ET at 93.7 mph G-Tech Pro | ||||||
| Little Mike notes: I have a 94 SLS and there are a few modifications you can perform that I've found to improve performance as well as gas mileage. The first thing was to replace the stock air intake box with a K&N Filter charger.... My car went from 217 HP at the wheels to 231 HP... A gain of 14 HP... Cost- $65 The next modification was to remove my cat-conv... Not really a legal mod. but never the less 6 more HP. Drawback.... Car became noticeably louder. Trick #3... New mufflers from Dynomax...Almost a direct replacement of the stockers... 11 more HP. Drawback... Even louder now and my wife is starting to wonder what the $%^& is going on... I like the sound though. The last Mod was the installation of a chip from Superchips... This shut off my speed governor (115mph) and 20 more HP. The grand total= 268 HP at the wheels and 16.4 avg mpg. WATCH OUT ALL YOU STS IMPALA SS CAMARO SS ....There a new Sheriff in Town and he's driving an SLS not an STS | ||||||
| Motor Trend 7/95 1995 STS 0-60 6.4 sec; quarter mile 14.7@96.9 mph | ||||||
| The Mountain Democrat Online 2001 STS 0-60 in 6.48 sec; top speed limited to 130 mph. | ||||||
| The AutoChannel 1999 STS 0-60 mph in 6.7 sec; one run at 6.21 sec; limited to 150 mph. | ||||||
| XMS 2000 STS Modified for a claimed 365 hp; 0-60 mph in 5.85 sec | ||||||
| Paul Steinmetz 2000 STS 0-60 mph 6.7 sec; limited to 130 mph. | ||||||
| Best Quarter | Best 0-60 |
Who/What? | Mods? |
| 12.96 sec @ 110 mph
on nitrous, 14.03 @ 103 mph on Engine |
STS Type R (GM Forums) |
Lower profile tires, 225/45 zr 17 which are a little less diameter and help the car off the line a lot faster, it also gets it in its powerband a lot quicker. Engine rebuilt and bored 30 over, five angle valve job, heads ported and polished. Superchip (obd1 computer). k&n filter in a modified box where it only sucks air from right behind my foglights. Removed catalytic converter and replaced it with a cherry bomb. 2.5 inch piping all the way to the tips with dynomax super turbo mufflers. Generic msd ignition and 8mm wires connected to just plain old ngk copper plugs. this was all tested at the lapeer dragstrip in 75 degree weather, my intake was iced down also as well as having my oil just about an eighth of an inch over the add line. Using a 150 shot kit made by nos. its the gm e.f.i. kit designed for the 3800 | |
|
13.66 sec @ 110 mph |
5.34 sec | K&N Cone, no MAF, TPS tuner, Exhaust, ported throttle body, polished heads | |
| 5.39 sec |
Dpower |
96 Seville SLS 16"
Dayton classic 100 wire wheels RSM 80mm throttle body Intrax Sport Springs E&G Billet grille Casper Electronics throttle enhancer MSD DIS-4 ignition and coils Moroso 10mm wires NGK Iridium IX plugs hi-flow cat, HKS SS Cat back system Rockford Symmetery eq Nakamichi cd700 Focal Utopia subs and mids Focal TLR tweeters Lunar amplification 100+ lbs Dynamat Extream, RSM Racing throttle body, throttle body mount |
|
| 13.92 sec @ 107 mph | 5.70 sec |
Mark 99 STS |
K&N Cone, Corsa Exhaust |
| 14.26 sec @ 103.1 mph |
IceHeart400 |
Ravin Mufflers Purple Eibach lowering springs 1.5" front, 1.0" rear Mille Miglia, ImperaII 18" wheels Potenza S-03 Pole Position Z-rated 245/45/18 K&N air filter N20 Kit from NOS, (some problem with rich fuel on launch yet to be solved) | |
| 14.36 sec @ 102.7 mph | 5.98 sec | K&N Cone, Granatelli MAF, TPS tuner, Exhaust | |
| 14.69 sec @ 97.20 mph |
IceHeart400 |
Ravin Mufflers Purple Neon
underlights Billet Grille Eibach lowering springs 1.5" front, 1.0" rear Mille Miglia, ImperaII 18" wheels Potenza S-03 Pole Position Z-rated 245/45/18 K&N air filter |
|
| 14.70 @ 100 mph | 6.40 sec | Stock. | |
| 14.73 @ 93.98 mph |
Rdillonh |
Synthetic oil, Granatelli MAF | |
| 14.78 sec @ 101 mph | 6.32 sec | K&N Panel, no MAF screen | |
| 14.93 sec @ 99 mph | Dean 93 STS |
Stock |
|
| 15.42 sec @ 98 mph | K&N, Dynomax Ultraflow, but 101F weather | ||
| 15.57 sec @ 93.7 mph | Edelbrock muffler, Fastchip, K&N panel, ignition. 4.9L OHV Engine. | ||
|
Year & Vehicle |
0-60 mph |
Quarter mile ET at Speed |
Top Speed |
HP |
Weight |
Lb/HP |
| 2003 CTS 5spd |
7.1 sec |
220 hp | 3,509 lbs | 15.9 lb/hp | ||
| 2003 CTS Auto |
|
220 hp | 3,568 lbs | 16.2 lb/hp | ||
| 2002 STS |
6.9 sec |
150 mph | 300 hp | 4,027 lbs | 13.4 lb/hp | |
| 2002 Escalade |
7.8 sec |
16.0 sec at 86 mph |
108 mph | 345 hp | 5,662 lbs | 16.4 lb/hp |
| 2001 Catera Sport |
8.3 sec |
16.5 sec at 83 mph |
126 mph | 200 hp | 3,897 lbs | 19.5 lb/hp |
| 2001 DHS |
8.0 sec |
112 mph | 275 hp | |||
| 2001 DTS |
7.3 sec |
130 mph | 300 hp | |||
| 2001 Seville STS |
6.7 sec |
150 mph | 300 hp | 4,001 lbs | 13.3 lb/hp | |
| 2001 Seville SLS |
7.7 sec |
112 mph | 275 hp | 3,970 lbs | 14.4 lb/hp | |
| 2000 Seville STS |
6.8 sec |
300 hp | 4,001 lbs | 13.3 lb/hp | ||
| 2000 STSi |
6.4 sec |
14.8 sec at 94.0 mph |
150 mph | 350 hp | 4,050 lbs | 11.6 lb/hp |
| 2000 Deville DTS |
6.8 sec |
15.1 sec at 93.2 mph |
300 hp | 4,047 lbs | 13.5 lb/hp | |
| 2000 BMW 740i |
6.8 sec |
128 mph | 282 hp | 4,255 lbs | 15.1 lb/hp | |
| 1998 Seville STS |
7.64 sec |
15.9 sec at 92 mph |
300 hp | 4,001 lbs | 13.3 lb/hp | |
| 1997 Seville STS | 300 hp | 3,960 lbs | 13.2 lb/hp | |||
| 1996 Seville STS |
7.1 sec |
300 hp | 3,869 lbs | 12.9 lb/hp | ||
| 1996 deVille |
7.2 sec |
15.4 at 90.7 mph |
300 hp | 3,981 lbs | 13.3 lb/hp | |
| 1995 Seville STS | 300 hp | 3,950 lbs | 13.2 lb/hp | |||
| 1994 Seville STS |
7.0 sec |
295 hp | 3,893 lbs | 13.2 lb/hp | ||
| 1993 Seville STS | 295 hp | 3,721 lbs | 12.5 lb/hp | |||
| The weight for the 93 included the Northstar combo, which is 100 lbs heavier than the 4.9L/4T60e; it should have probably been 3,893 lbs in 1993 for a power/weight ratio of 13.2 lb/hp. | ||||||
| 1992 Seville STS | 8.2 sec | 200 hp | 3,721 lbs | 18.6 lb/hp | ||
| 1991 Seville STS | 8.5 sec | 200 hp | 3,565 lbs | 17.8 lb/hp | ||
|
Fuel Economy Reports |
||||||||||||
|
||||||||||||