DynoJet HP on 993 GT3/GT3R
08-18-2003, 01:13 PM
#1
Rennlist Member
Thread Starter
DynoJet HP on 993 GT3/GT3R
Can anyone give an actual dyno jet hp/tq graphof either of these two racers? Including the porsche motorsport upgrade?
Thanks,
Marc
Thanks,
Marc
08-19-2003, 12:51 AM
#6
A Banned 'Haiku Victim'
Join Date: Aug 2002
Location: los angeles, san francisco, phoenix, tokyo, taipei
Posts: 2,367
Likes: 0
Received 0 Likes
on
0 Posts
how many ft-lbs of torque to the wheels Chris?
it sounds like Cup car with Speedvision upgrade makes more than GT3R (which normally runs mandatory FIA air restrictors correct?).
actually I'd be very interested to get the run files. if you don't mind sharing. let me know. thanks.
it sounds like Cup car with Speedvision upgrade makes more than GT3R (which normally runs mandatory FIA air restrictors correct?).
actually I'd be very interested to get the run files. if you don't mind sharing. let me know. thanks.
08-19-2003, 08:07 PM
#7
Rennlist Member
I dont think the torque matters too much in these cars with their close ratio 6 speed gear boxes. revs up to 8500+rpm too!!! max torque is never needed as its really about ave hp to the wheels!
The GT3RS and R have restrictors, yes, but have individual throttle body style intake systems. They also are lighter cars and have a very trick suspension set up, along with a wider wheel base.
mk
The GT3RS and R have restrictors, yes, but have individual throttle body style intake systems. They also are lighter cars and have a very trick suspension set up, along with a wider wheel base.
mk
Originally posted by GhettoRacer
how many ft-lbs of torque to the wheels Chris?
it sounds like Cup car with Speedvision upgrade makes more than GT3R (which normally runs mandatory FIA air restrictors correct?).
actually I'd be very interested to get the run files. if you don't mind sharing. let me know. thanks.
how many ft-lbs of torque to the wheels Chris?
it sounds like Cup car with Speedvision upgrade makes more than GT3R (which normally runs mandatory FIA air restrictors correct?).
actually I'd be very interested to get the run files. if you don't mind sharing. let me know. thanks.
Trending Topics
08-20-2003, 04:06 PM
#9
Rennlist Member
I guess was thinking of Tim Hankie's (sp?) #36 cup car, that was measured at about 335 at the wheels, and was considered strong.. Now the new ones 2001+ have more hp, so I would think 340 or 350 could be expected like you saw. Im amazed on how much more power the motorsport upgraded engine makes. looks like very close to the GT3RS, but then again, look at times at Sears point SpeedGT. 1:43ish on DOT toyos and at 2500lbs vs the 2300lbs/much larger slicks of the GT3RS in the ALMS race running 1:38s!@!
mk
mk
Originally posted by Derrek Khajavi
On an engine dyno we saw 485 on a GT3RS engine. We have had a few cup cars making 340-370 or so depending on what they have done.
On an engine dyno we saw 485 on a GT3RS engine. We have had a few cup cars making 340-370 or so depending on what they have done.
08-20-2003, 04:13 PM
#10
Three Wheelin'
I would say the tires have a LARGE part to do with that difference. What are some of the differences between the years of 996 cup cars? Is each year more HP? I head that one year, 2001?, had heavy brakes or something.
Mitch
Mitch
08-20-2003, 07:38 PM
#11
Rennlist Member
the first cup cars ( 996GT3) were rated at 370hp flywheel (common to see 335rear wheel hp), now they are rated at 380. there have been other changes to make them even faster!!
MK
MK
Originally posted by MJR911
I would say the tires have a LARGE part to do with that difference. What are some of the differences between the years of 996 cup cars? Is each year more HP? I head that one year, 2001?, had heavy brakes or something.
Mitch
I would say the tires have a LARGE part to do with that difference. What are some of the differences between the years of 996 cup cars? Is each year more HP? I head that one year, 2001?, had heavy brakes or something.
Mitch
08-21-2003, 01:23 AM
#12
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Join Date: Jun 2001
Location: CT
Posts: 151
Likes: 0
Received 0 Likes
on
0 Posts
Cup car differences through the years,...
Basic changes:
1999 360hp
2000 370
2001 370
2002 380
2003 390
2000 car received cable shifter as change over from mechanical linkage
2000 car delivered with clear lower lenses and not amber on front head lamps
2000 car delivered with clear rear lenses with red. No longer amber/red
2001 car received updated wing
2001 car received larger central radiator as on GT3RS
2001 car had ducting in nose for more efficient cooling through larger central radiator
2001 car delivered with enhanced GT3R rear toe links
2002 car received transmission cooler as on GT3RS
2002 car received 350mm front disks and larger front caliper(previous cars use 330 mm turbo rotors and calipers)
2002 car received more efficient aerodynamics on front as bodywork style and front lights change
2002 car comes delivered with fire suppression system and not just extinguisher
2002 wheels become 9 and 11 x18 up from 8.5 and 10.5
2002 car gets fractionally wider front fender as part of body style change
2002 gets quieter exhaust which now exits in center of rear bumper
2002 receives ECU as in GT3RS
2003 has more carbon fiber in rear deck-rear, doors and other areas
2003 delivered with window frame
2003 received shorter gear ratios in 4/5/6(ring and pinion stays the same)
2003 received mildly different aero package with different side rockers Front essentially same as 2002
2003 received larger fuel tank now 89 liters increased from 68
2003 received adjustable sachs shocks
2004 very similar to 2003
Chassis stiffer each year
Spring rates same through all years as is basic suspension geometry
lap times remarkably similar for 1999-2002 in carrera cup and supercup. In 2003, this year the car appears slightly quicker...mostly due to adjustable shocks and certainly shorter gears
Recently 2000 cup car with 76 hrs on motor dyno at only 15hp less than fresh 2003 car; 2000 car made 2 ft-lb more torque than 2003.
The hp ratings are deceiving...the earlier cars may be not as high at peak, but perhaps stronger in lower rpm areas and hence a bit more drivability.
In 2001:
Cup car 380hp @ 7250rpm with rev limit of 8000;
GT3RS 430hp @ 8200rpm with adjustable limiter, but basically set at 8600.
Cup car -single throttle body, NO restrictor
GT3RS- 6 throttle bodies, and restrictors in each plenum
SV motor upgrade: No restrictor, different pistons, cams, rev limit, electric power steering as GT3RS, subsequent compression increase with different pistons, reprogrammed ECU, and many other changes over standard cup not listed here. HP as Chris stated.
Differences between GT3RS and cup car would take several pages,.....
1999 360hp
2000 370
2001 370
2002 380
2003 390
2000 car received cable shifter as change over from mechanical linkage
2000 car delivered with clear lower lenses and not amber on front head lamps
2000 car delivered with clear rear lenses with red. No longer amber/red
2001 car received updated wing
2001 car received larger central radiator as on GT3RS
2001 car had ducting in nose for more efficient cooling through larger central radiator
2001 car delivered with enhanced GT3R rear toe links
2002 car received transmission cooler as on GT3RS
2002 car received 350mm front disks and larger front caliper(previous cars use 330 mm turbo rotors and calipers)
2002 car received more efficient aerodynamics on front as bodywork style and front lights change
2002 car comes delivered with fire suppression system and not just extinguisher
2002 wheels become 9 and 11 x18 up from 8.5 and 10.5
2002 car gets fractionally wider front fender as part of body style change
2002 gets quieter exhaust which now exits in center of rear bumper
2002 receives ECU as in GT3RS
2003 has more carbon fiber in rear deck-rear, doors and other areas
2003 delivered with window frame
2003 received shorter gear ratios in 4/5/6(ring and pinion stays the same)
2003 received mildly different aero package with different side rockers Front essentially same as 2002
2003 received larger fuel tank now 89 liters increased from 68
2003 received adjustable sachs shocks
2004 very similar to 2003
Chassis stiffer each year
Spring rates same through all years as is basic suspension geometry
lap times remarkably similar for 1999-2002 in carrera cup and supercup. In 2003, this year the car appears slightly quicker...mostly due to adjustable shocks and certainly shorter gears
Recently 2000 cup car with 76 hrs on motor dyno at only 15hp less than fresh 2003 car; 2000 car made 2 ft-lb more torque than 2003.
The hp ratings are deceiving...the earlier cars may be not as high at peak, but perhaps stronger in lower rpm areas and hence a bit more drivability.
In 2001:
Cup car 380hp @ 7250rpm with rev limit of 8000;
GT3RS 430hp @ 8200rpm with adjustable limiter, but basically set at 8600.
Cup car -single throttle body, NO restrictor
GT3RS- 6 throttle bodies, and restrictors in each plenum
SV motor upgrade: No restrictor, different pistons, cams, rev limit, electric power steering as GT3RS, subsequent compression increase with different pistons, reprogrammed ECU, and many other changes over standard cup not listed here. HP as Chris stated.
Differences between GT3RS and cup car would take several pages,.....
08-21-2003, 04:06 PM
#13
Instructor
Join Date: Feb 2002
Location: Egg Harbor
Posts: 242
Likes: 0
Received 0 Likes
on
0 Posts
Lynn,
Thanks, great info.
The differences between cup cars and GT3RS can be found through the following link.
http://content2.eu.porsche.com/prod/.../rennfahrzeuge
What is the difference between carrera cup and supercup?
Thanks, great info.
The differences between cup cars and GT3RS can be found through the following link.
http://content2.eu.porsche.com/prod/.../rennfahrzeuge
What is the difference between carrera cup and supercup?
08-21-2003, 04:37 PM
#15
Addict
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Join Date: Jun 2001
Location: CT
Posts: 151
Likes: 0
Received 0 Likes
on
0 Posts
Glad the info is helpful. The pic on the start page is from the 2001 Grand Am race at LRP. It was a little wet!
The cars are identcle in supercup and carrera cup. They use the GT3 cup car and teams use the latest model(or a slightly older model upgraded to the current year's specification). Supercup is the European series that serves as the F1 support series. Carrera cup is a regional series primarily in Germany. Many drivers cross over between Supercup and Carrera cup though, so the quality of professional level driver is similar between the 2 series.
Go to
http://www.farnbacherracing.com
check out the gallery and then video. Load the mid level length video. It is in car footage from JB, who is one of the Porsche factory works drivers. It demonstrates quite nicely the ability of the series drivers and the car itself.
The cars are identcle in supercup and carrera cup. They use the GT3 cup car and teams use the latest model(or a slightly older model upgraded to the current year's specification). Supercup is the European series that serves as the F1 support series. Carrera cup is a regional series primarily in Germany. Many drivers cross over between Supercup and Carrera cup though, so the quality of professional level driver is similar between the 2 series.
Go to
http://www.farnbacherracing.com
check out the gallery and then video. Load the mid level length video. It is in car footage from JB, who is one of the Porsche factory works drivers. It demonstrates quite nicely the ability of the series drivers and the car itself.