View Full Version : list of mods
05-02-2002, 04:50 PM
if you were to make a detailed list of all the engine mods to do to your SC....what would it be in chronological order?? I know exhaust would be first, but then it gets a little sketchy with OD pulleys, intake plenums, MAF, chips, larger throttle body etc
thanks for your time
05-04-2002, 05:09 AM
ok since this isnt working how about we start be you guys sharing what mods you've done to your cars in chronological order please...thanks for your time
05-04-2002, 08:33 AM
Remove air silencer
05-05-2002, 05:44 PM
3.73 gears and rebuild rear end and traction lock
Kooks med length headers w/jet hot ceramic coating
SCP down tubes & high flow cats
SCP exhaust with 3" center pipe
SCP 3/4" raised top
trans-go shift kit
AOD performance rebuild (extra clutches and Kevlar OD band)
MN12 IC fan 400 CFM................................15.0 @ 88 mph
K&N panel and removed silencer
190 lph pump
ZR intake w/7" cone
73 MM C&L MAF.......................................14.3 @ 92 mph
70 MM TB
ESM DBL IC
900 CFM IC fan
ESM ported early blower w/ titainum shaft
ESM 10 rib quick change pulley system
ESM 2.84 and 2.75 dia pulleys 10 rib pulleys
ESM 1.25 raised top.................................14.0 @ 95 mph
Dante 17 x 9 Chrome Cobra Rs
Nitto 255-45-17 tires
Alpine head unit w/CD
Lentech street terminator VB w/ OD delete
Lentech non-lock 12" converter
Lentech hardned 3-4 shaft
B&M 24K GVW stack plate tranny cooler
Window tint 35% sides and back................13.8 @ 98.1 mph
Wise Racing Engines balanced and blueprinted Short Block includes Ross pistons, CAT rods, Total seal rings, Crane cam, and on and on and on.....
ESM Custom heads and matching intake manifold
ESM ported and diffused intake adaptor
ESM ported and diffused IC tubes
MSD 50# injectors
255 lph FI pump
6AN braided steel fuel supply line
76 MM C&L MAF
75 MM TB
Custom torque strap
Solid Transmission Mount
Taylor spiral core wires w/ 32PP plugs
EEC tuner with several files from Dr. Fred
H&R lowering springs
Mr. Gasket rear spring spacers (1/2" lift)
Reflective bumper lettering and center cap decals/ Todd J.
Dual gauge pillar pod
Auto meter full sweep fuel pressure gauge
Auto meter air/fuel ratio gauge
ESM aluminum tensioner pulleys
NGK Iridium plugs..................................13.6 @ 103.8 mph
ESM 10 rib overdrive jackshaft pulley
ESM upgraded nose cone with high speed bearings, viton seals, titainum shaft and custom coupler.
Lentech 9.5 non-locking 2700 stall converter
Lentech cast aluminum transmission pan
Auto meter electric trans temp gauge
Jerry dyno tune and chip................Possible ET& MPH ???????
Thats about it, except I've got to add more transmission cooling within the next month or so.
05-05-2002, 10:56 PM
removed air silencer
cold air induction kit (goes thru fender wall)
bypass hose blocked
32PP plugs gaped to .045
3.55 gears with traction lock pumpkin (have gears, gotta get the pumpkin from vernon)
05-06-2002, 12:11 AM
ahahaha, way to go David, make everyone feel inadequate ;)
05-06-2002, 12:17 AM
Sheesh, nice list there, :p
Where is your list Darryl, I wanna see it too, :)
05-06-2002, 06:38 AM
Here you go:
05-06-2002, 08:20 AM
I didn't realize the list was that long until writing it all down. I would have saved a ton by stopping at 13.8 (my original goal) instead of changing it to 12.8. No wonder my wife has cut off the car funding for a while.
05-07-2002, 09:01 PM
Mods in order that I would do them if I were to do it again....
180 degree thermostat and rewired cooling fan.
APP103 (colder plugs)
big fan of homemade ram air
CAI of some sort
73-76MM mass air
upgrade rear end gears
block SC bleeder hose
That will get you solidly into the 14's, won't break the bank, and won't affect reliablilty.
2.25" X-pipe and move the cats back to the rear end of the tranny (or remove them altogether)
Headwork and cam
Port exhaust manifolds
Now you have spent some good change, but the result is a much more fun-to-drive car, and lower boost. Probably about 9psi. Car should run low 14's.
42lb injectors and 255lph fuel pump
75MM TB and a blower upgrade of choice
aluminum flywheel/CF clutch or high stall converter and lentech
Now your car will be running mid 13's and will require DR's or better to hook up. It can still be a stock bottom end, but you are at about the limit. You will be looking at engine management in a whole new way, and the prospect of going much faster gets a little ominous.
Did I miss anything important?
05-08-2002, 01:58 AM
5% pulley worth it
Densecharger CAI w/ Kand N filter worth it. ( same as all the other inlets/airboxes)
Flowmaster FOrce II cat back system nice sound
cats removed replaced with 2/1/4 in tubes
05-08-2002, 03:33 AM
What about a raised top and EEC tuner Dave? Where would those fit in?
Heres my combo for now:
SCP Intake: Sorta worth it, not much more power increase than just removing the silencer. A little more SC whine.
EEC Tuner: Not worth it stock unless you can get a good deal on it (I did) and like messing with idle and fan settings.
B&M Ripper Shifter: Easily worth it, quicker, more precise shifts. Feels more solid than stock.
15.213 at 92.24mph on my fourth 1/4mile run ever. Im hoping for a sub-15sec time with some better tires in the next few weeks.
05-08-2002, 01:36 PM
thanks for all the replies...im slowly learning quite a bit
quick question: what type of intake is best for the money??
thanks for your time
05-08-2002, 01:39 PM
Travis - they don't.
Boomin Boy - I prefer the ZR motorsports although I have a MAC and it seems to work well. As far as a ram air goes, ya gotta build your own.
Bill A McNeil
05-08-2002, 11:12 PM
The 2 Daves are ANIMALS!!! :cool:
What a list of mods.....unreal. Keep up the good work guys.
SC YA LTR
05-09-2002, 02:56 PM
Here is my list:
SCP Intake w/9" K&N Cone Filter.
2.5" from cats to single 3" to single 18" Magnaflow.
ASP Underdrive Pulleys.
10% Overdrive SC Pulley.
1.25" ESM Raised SC Top.
76mm C&L MAF
255 lph Fuel Pump.
Sitting in my garage:
Cobra Calipers & Rotors.
05-09-2002, 03:28 PM
this is my list in order of when they where done. also if any of you guys have similar mods and have dynoed your car, let me know what numbers you guys got.
1. removed air resonator
2. removed rear mufflers
3. installed terminator resonator
4. gutted cats
5. transgo shift kit
6. 2300 high stall tq convertor
7. 10% overdrive pulley
8. 180 t-stat
9. cool fan switch
10. asp underdrive pulleys
11. 70mm bbk throttle body
12. port match plenium to throttle body
13. 3 inch intake tube
14. cone filter
15. custom ram air ducting
16. 255 lph fuel pump
17. 38lb injectors
18. 76mm c&l maf
19. ported stock manifolds
20. crane cam 208
21. 3 angle valve job and porting of heads
22. intake port match
24. windage tray
25. new stiffer valve springs and pushrods
i think thats it, i havent got the car back yet from mods #16-#25. im hoping to see a huge improvement from those. brian
05-09-2002, 03:39 PM
Cat back exhaust (no cats)
SCCoA Fresh Air Induction w/K&N
Sold SCCoA intake for Evanoff intake
255 50 BFG drag radials
Polished stock SC wheels
ST lowering springs
Ram air hood
255lph fuel pump
McLeod 28# flywheel
Ported polished heads/lower intake
BFG 315 35 drag radials
Dynomax "stubby" exhaust
White faces and FP & A/F Ratio gauges
Magnaflow exhaust (another system)
Ported stock blower
Nitto 275 40 drag radials
ZR intake w/ autophysics filter
Ported 95 blower
Diablo chip w/ Jerry tune.
And this all progressed from Spring '98 till now.
05-09-2002, 11:34 PM
mn12perf exhaust minus cats
5% sc od pulley
dual mode j-chip
Borla mufflers replacing dynomax
*14.6@96 dyno'd 220rwhp/337trq
Stegimier Speced cam
Ported lower inake
Ported Stock exhaust manifolds
1.73 Roller Rockers
05-09-2002, 11:53 PM
SweetSC- you said you changed from dynomax to borla...did you really like the difference?? Is it worth the price to pay more for borla performan
thanks for your time
Hot Rod Joe
05-10-2002, 02:04 PM
95 sc auto
1999 4R70W trans with modified separator plate and ford 140k converter,
full mn12 exhaust
89 blower pulley,
iced down blower
190 lph fuel pump,
*looking for solid 13's
I have everything but the intake in my basement. No idea when I will get to the rest of the mods.
The total cost of 13's should be less than $2500. I was writing a series on this but got side tracked with my SHO.
05-10-2002, 11:15 PM
Ya borlas are worth it. Only thing I would do different is possibly get the longer ones for a little deeper sounds. There is no drone whatsoever. I had nastly high load, low rpms drone with the dynomax... just puttin on the borlas killed that.
05-12-2002, 10:27 PM
- 70mm TB
- Used 94 blower (still for sale... someone PLEASE buy it!!)
- 91 pulley
- ported stock valve heads
- dual 2 1/4" - 3" - dual 2 1/4" exhaust Flowmaster resonator and Dynomax Super Turbos in the back
-Tokico Illumina II shocks
- Holley 190 lph fuel pump
- Centerforce I 11" clutch
- 1" raised blower top
- MN12Performance polyurethane front suspension kit
- Cervini ram air hood
- Autolite 2543 plugs
- Accel Extreme 9000 wires
14.54@95mph 2.1x 60' 13-14 PSi max
- Mark VIII aluminum differential w/3.08 gears and rebuilt trac-lok
- Eibach 1" springs
- Autometer oil and water gauges in A pillar pod
- 36# injectors
- 76mm C&L MAF
- EEC Tuner
14.5@92mph 2.0x 60' 13 PSi max (had to shift to 4th ~150ft before the lights)
New Motor Round 1
- Bored .020" TRW forged pistons with custom cut domes
- 90 rods w/arp bolts
- windage tray
- BHJ Dynamics harmonic balancer
- Competion Cams reground cam (210/220 duration @.050" lift .490" max lift)
- Morana Racing adjustable double roller timing chain
- Self prepped heads with 1.84" and 1.56" valves
- Wolverine 1.73 pedastal mount adjustable roller rockers
- Comp Cams pushrods
- Kooks headers and Catco 2 1/4 Cats
- Holley 255 lph Forced Induction fuel pump
- Accel 48# injectors
- Mallory AFPR
- SCP intake kit
- ASP underdrive pullys
- Centerforce II 11.5" clutch
- Raxles passenger side axle
- 96 Sport front brakes with KVR carbonfiber pads (incredible upgrade!!!!)
13.5@101mph 1.9x 60' 10-11 PSi max (3.08s still killing me at the track)
New motor round 2 (don't ask....)
- 95 SC rods previously mentioned pistons cut for spirolocks
- Crane reground cam (specs...ummm.... more aggressive than round 1)
- ESM Dominion IV blower w/3" pulley and matching inlet plenum
- ESM diffuser return plenum adapter
- Denso Iridium plugs
- 75mm TB
- Airbag in rear passenger side spring
- Autometer boost gauge
No new times (just got it back Feb 2:cool: 10-10.5 PSI max.... see upgrades below.....
Mods to be completed this month (already in the works)
- ESM 10 rib blower pulley kit and 8 rib jackshaft drive kit (hopefully to get boost up to 13 PSi for 'street' duty and 15 PSi for 'track' duty)
- dual 2 1/2" exhaust (picking it up tomorrow) with Magnaflow resonator and Hooker Super Competition mufflers out back.
- 3.31 gears in the aluminum diff
- ESM double IC
- H2O injection
- Relocate battery to trunk
- Airbag in driver side rear spring
- Aluminum driveshaft
- Raxle for the driver side
I'm sure I missed some stuff.... but that's the majority of it.
05-12-2002, 10:40 PM
"block SC bleeder hose"
What is this mod?
09-04-2002, 03:13 AM
I want to know the same thing about this blocked bleeder hose.....
09-05-2002, 09:23 AM
It's the 4 or 5 inch long vacuum hose that connects the Intake Plenum to the Intake Manifold adaptor.
Removing it and capping the ports saves a small amount of boost from leaking over to the Intake Plenum when the bypass valve is closed. It also makes the bypass much more sensative and causes it to close quicker.
I had mine blocked for several months, but got annoyed by the supercharger whine everytime you barely touch the gas pedal. Couldn't tell any improvement power wise, just makes the throttle a little more responsive and burns more gas.
09-06-2002, 05:59 PM
k&N panel filter
removed air silencer
removed bridge out of stock maf
10% OD pulley
Accell plug wires
removed resonator and replaced it with a y-pipe.
Swapped in a 99 Cobra aluminum T-lock diff. w/ 3.27 gears.
PU diff bushings
Ported 94 blower
Ported stock SC top
Ported stock TB
Ported stock exhaust manifolds
no-cat 2 1/4 down tubes to 3" dynomax bullet into 2 1/2" summit turbo muffs
190 lph fuel pump
80mm Pro-M maf w/ cone filter
Custom intake tube
Denso irridium IT20 plugs
EEC tuner w/Dr. Fred file
Battery relocated to trunk
Ported and polished Heads
1.84 intake 1.6 exhaust valves (Manley undercut)
Comp cams valve springs
Trick Flo pushrods
Dr. Fred .520" lift cam
2" raised SC top
2" raised/stretched IC
Ported lower intake
Polished IC tubes
86MM Throttle body
4" intake tube
Ported inlet plenum (to accept 86mm TB)
BFG 255/50/16 Drag Radials
Aluminum roller Rockers
March Aluminum underdrive pullies (when they come in)
09-06-2002, 06:12 PM
Mods are in my SIG..1/4 mile time to come soon:O)
09-10-2002, 01:11 AM
Is it really that much louder? And How do you go about capping off the ports? Thanks for the help.
09-11-2002, 01:34 AM
RELEASE THE HOUNDS!!!!
Morana Stage III Motor
Stage III Porting
Dr. Fred Custom Competition Cam
5 Angle Valve Job
1.83 Intake, 1.60 Exhuast
Ported Lower Intake Manifold
TRW Forged Pistons
Eagle I-Beam Rods
ARP Rod Bolts
ARP Head Studs
ARP Main Studs
Fel-Pro Gaskets (everywhere)
Morana Stud Girdle (w/windage tray)
Custom Moly Pushrods
1.73 Roller Rockers, stud mounted
Go-Fast Parts (Hi-Po)
MagnaPort II MP Blower
MP Inlet Plenum
MP 3/4" Raised SC Top
Borla Custom XR-1 Racing Exhaust
10% Overdrive HyperTech Pulley
ASP Underdrive Pulleys
Dual Friction Centerforce Clutch
3.27 SVO Gears
42# FMS Lightning Injectors
85mm Magnum Powers TB
90mm Lightning MAF
Billet 4" MAF adaptor
3.5" MP intake tube
255lph Holley Fuel Pump
Eibach Lowering Springs
Bridgestone S-02 255/45R17 Tires
Triple Core Radiator
9mm FMS Racing Ignition Wires
32pp Motorcraft Plugs
Morana Ported Exhaust Manifolds
95 Oil Pump
Mark VIII Brake Upgrade
Competition Engin. Torque Link
Solid Motor Mounts
Solid Tranny Mount
09-11-2002, 01:40 AM
Bill, never realized that the list was that long. DAMN!
I need some more mods.:mad:
- Eibach 1.5"lowering springs
- Tokiko Illumina 2 struts
- Kenny Brown strut tower brace
- Cross Drilled Rotors
- MAC cold air intake system
- K&N 9" cone filter
- EEC Tuner
- Tuning By Dr. Fred Holzhauer
- C&L 76 mm mass air flow sensor
- BBK 70 mm throttlebody
- Ported Inlet Plenum
- Raised Supercharger Top
- Ford 32PP spark plugs(.047 gap)
- New spark plug wire set
- 180 degree thermostat
- New Radiator
- Full custom exhaust system, 2.5"-single 3"-dual 2.25"
- No cats
- Magnaflow resonator
- 3:55 Gears
- Rebuilt Rear End
- TransGo Shift Kit
- Turbo mufflers
- New motor mounts
- 90 Blower pulley
- Removed air silencer
- Castrol Syntec Motor Oil
- Custom paint job - Sikkens pearl blue
- Mondera Mystic 17" chrome rims
- Goodyear 255/40/ZR17 F1 in rear
- Goodyear 245/45/ZR17 in front
- Pioneer DEH - 6000 CD player
On the Way:
- AC Delete
- Battery relocation
- Intercooler fan
- 255 lph fuel pump
- ;) ;)
09-11-2002, 01:41 AM
Ya man. It gets addictive. You're already in too deep.
09-11-2002, 01:44 AM
I know......... my wife points that out daily :D
06-08-2006, 09:31 AM
Found this thread looking for something else and I got a good kick out of it. Back when we were all running 13's and it seemed like 11's were out of the question. LMAO!
Anyway, it would be cool for some people to list what they've done these days to get to a certain performance level. It would be neat to see how people's perceptions have changed.
Of course not everyone here had posted their results with their mods. It would be nice to see the results posted with whatever it is that you've done with your SC.
Randy N Connie
06-08-2006, 10:37 AM
first pull 10% OD RWHP 273.4
Second pull 20% OD RWHP 280.8 RWTQ419.2
same day next dyno pull Head gasket started to seap RWHP 265.4 RWTQ369.2
DAY AFTER DYNO PULL SEAPING HEAD GASKET13.89 1/4 ET. With treaded tires.
stock long block
76mm C&L MAF
3.5'' COLD air tube
MP RAISED TOP
Performance Tech manifold/plenum mod.
gas only 91 octain.
Stock rear end gears.
lentech AOD non-lock convertor
06-08-2006, 01:55 PM
When I started out I did a lot of stuff at once:
K&N filter and removed silencer
3/4 raised top
75mm MAF & 70mm TB
Exhaust 2.25 dual - 2.5 Single - 2.25 dual out with high flow cats.
I eventaully got to a 13.94 from this on stock injectors and stock unported maniflds using BFG DR's.
Then I added:
ZR Motorsport intake
With this I got 13.82 @ 98.8mph again with lots of practice and 254hp/357rwt on the dyno.
Then I added:
180 deg Tstat
255 fuel pump
mild ported heads with stock valves
mild cam 208/509 crane grind
ported exaust maniflds
I never improved my time with this setup due to rusty driving skills, but got 277hp/368rwt
Got it tuned by XR7Dave to 287rwhp/377rwt
Then I added the AUTOROTOR!
No other changes made under the hood besides AR. With a bad tune and still poor driving skills I got a 13.2 @ 105 on ET streets.
I have added 50lb injectors and got it tuned properly but no dyno #'s or ET's yet. I would like to make a few minor changes(Add Alc Inj, IC fan, better exhaust) and see what it will do when I get out again.
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