kc95sc400
New Member
- Messages
- 524
- Location
- Charlotte, NC
Short history:
Bolted a Vortech V-9 F trim supercharger on my 95 SC400 in late 2007. Since then have made a ton of modifications, slowly improving power as well as 1/8 and ¼ mile times. Mid 2011 I finally (after several hundred track runs on a high mileage mostly stock V8) did some damage to the motor. Didn’t kill it but had low compression on 2 cyls. Built myself a mild motor. Never ran it until this last Saturday. Running a little slower than before I built the motor but I blame this mostly on my driving, it has been along time. Also last year I wrecked my 95. Bought a 96 and transferred as many parts as possible over.
Modification list: (not in any particular order)
Vortech Supercharger V-9 F trim
Water Methanol injection
Reversed intake manifold
Electric cooling fans
Very large aluminum radiator
Ross pistons 8.5 to 1 CR
The “thick” factory rods
ARP head studs
Cometic head gaskets
ACL bearings
Block and heads resurfaced
Intake and heads ported (gasket matched)
Adaptronic e420c ECU
Bosch idle control valve
3bar GM map sensor (no MAF)
ABS / TRAC delte
Suprastick transmission controller
Built transmission
PI Dragon convertor
Supra Torsen LSD (stock gear ration)
Supra Illumina adjustable shocks / swift lower springs
ALL poly bushings
Solid front diff mounts
Reinforced rear subframe mounts
IMF headers
2.5 inch exhaust
x-pipe
1 AEM and 1 Innovative wideband
CarPC
Well, that’s the short list, LOL. I’m sure I’m forgetting something.
Anyway, planned upgrades:
Crower springs and titanium retainers
Kelford cams 207-a
Vortech V2 Si trim
The cams aren’t super aggressive over stock so probably won’t be a huge increase there. The springs and retainers should do the engine allot of good and allow me to up the rev limit a little. Still can’t go too crazy without converting to either shim under bucket or shimless lifters.
The new supercharger should be capable of HUGE gains over my current setup.
Specs to compare:
V-9 F-trim
Max impeller speed = 52000 rpm
Max boost = 13.5psi
Max flow = 750 cfm
Max horsepower = 550
Peak efficiency = 76%
V-2 Si trim
Max impeller speed = 52000 rpm
Max boost = 22psi
Max flow 1150 cfm
Max horsepower = 775
Peak efficiency = 78%
Going to be bad ass! LOL. About 35% more flow and more efficient and capable of much higher boost levels.
So I'm not really sure what my motor can handle. I figure I will start with about 10psi, which is what I was making at the track the other night, and work my way up from there. I plan to run a 2.62 diameter pulley and spin the motor to about 6800rpm. This will = 51389 rpm supercharger speed. In theory this will give me about the max boost the thing will make. I plan on using some sort of air valve (possibly an electronic BOV or a wastegate setup) controlled by my ECU to limit the boost. I'm going to try a regular solenoid activated air / water valve to start. Any ideas welcom. This will give me more boost at lower RPM's yet keep the boost from going higher than I want.
For reference later, I ran twice last Saturday. Felt awesome but only managed a best of about 8.2 @ 87mph (1/8 mile). At that MPH I should have been running 7.9's but as I said, I'm out of practice. Mostly wasn't pushing enough on the launch, Most of my time was lost in the 60ft I think.
My previous best with the other motor in the other car was a 7.703 @ 88.xxx mph, I plan to crush that number. Goal is to approach 7.0 if not into the 6's. This would give me a car that can do high 10's in the 1/4 mile.
Guessing about 400rwhp now, looking for somewhere between 500-600. I think it is capable of it.
It's going to be a bit before I get my supercharger. The order just went in to Vortech today. Brand new unit. I have the springs and retainers and waiting on the cams to show up. Will probably go ahead and get those in as soon as possible after I get them.
Stay tuned!
Some pictures of current setup:
Bolted a Vortech V-9 F trim supercharger on my 95 SC400 in late 2007. Since then have made a ton of modifications, slowly improving power as well as 1/8 and ¼ mile times. Mid 2011 I finally (after several hundred track runs on a high mileage mostly stock V8) did some damage to the motor. Didn’t kill it but had low compression on 2 cyls. Built myself a mild motor. Never ran it until this last Saturday. Running a little slower than before I built the motor but I blame this mostly on my driving, it has been along time. Also last year I wrecked my 95. Bought a 96 and transferred as many parts as possible over.
Modification list: (not in any particular order)
Vortech Supercharger V-9 F trim
Water Methanol injection
Reversed intake manifold
Electric cooling fans
Very large aluminum radiator
Ross pistons 8.5 to 1 CR
The “thick” factory rods
ARP head studs
Cometic head gaskets
ACL bearings
Block and heads resurfaced
Intake and heads ported (gasket matched)
Adaptronic e420c ECU
Bosch idle control valve
3bar GM map sensor (no MAF)
ABS / TRAC delte
Suprastick transmission controller
Built transmission
PI Dragon convertor
Supra Torsen LSD (stock gear ration)
Supra Illumina adjustable shocks / swift lower springs
ALL poly bushings
Solid front diff mounts
Reinforced rear subframe mounts
IMF headers
2.5 inch exhaust
x-pipe
1 AEM and 1 Innovative wideband
CarPC
Well, that’s the short list, LOL. I’m sure I’m forgetting something.
Anyway, planned upgrades:
Crower springs and titanium retainers
Kelford cams 207-a
Vortech V2 Si trim
The cams aren’t super aggressive over stock so probably won’t be a huge increase there. The springs and retainers should do the engine allot of good and allow me to up the rev limit a little. Still can’t go too crazy without converting to either shim under bucket or shimless lifters.
The new supercharger should be capable of HUGE gains over my current setup.
Specs to compare:
V-9 F-trim
Max impeller speed = 52000 rpm
Max boost = 13.5psi
Max flow = 750 cfm
Max horsepower = 550
Peak efficiency = 76%
V-2 Si trim
Max impeller speed = 52000 rpm
Max boost = 22psi
Max flow 1150 cfm
Max horsepower = 775
Peak efficiency = 78%
Going to be bad ass! LOL. About 35% more flow and more efficient and capable of much higher boost levels.
So I'm not really sure what my motor can handle. I figure I will start with about 10psi, which is what I was making at the track the other night, and work my way up from there. I plan to run a 2.62 diameter pulley and spin the motor to about 6800rpm. This will = 51389 rpm supercharger speed. In theory this will give me about the max boost the thing will make. I plan on using some sort of air valve (possibly an electronic BOV or a wastegate setup) controlled by my ECU to limit the boost. I'm going to try a regular solenoid activated air / water valve to start. Any ideas welcom. This will give me more boost at lower RPM's yet keep the boost from going higher than I want.
For reference later, I ran twice last Saturday. Felt awesome but only managed a best of about 8.2 @ 87mph (1/8 mile). At that MPH I should have been running 7.9's but as I said, I'm out of practice. Mostly wasn't pushing enough on the launch, Most of my time was lost in the 60ft I think.
My previous best with the other motor in the other car was a 7.703 @ 88.xxx mph, I plan to crush that number. Goal is to approach 7.0 if not into the 6's. This would give me a car that can do high 10's in the 1/4 mile.
Guessing about 400rwhp now, looking for somewhere between 500-600. I think it is capable of it.
It's going to be a bit before I get my supercharger. The order just went in to Vortech today. Brand new unit. I have the springs and retainers and waiting on the cams to show up. Will probably go ahead and get those in as soon as possible after I get them.
Stay tuned!
Some pictures of current setup: