SCCA ITS specs for 911 T & E Corrected
07-13-2003, 09:34 PM
#1
Race Director
Thread Starter
SCCA ITS specs for 911 T & E Corrected
The August Sportscar list the corrected specs for the 911 in ITS. I'm not familiar enough with the 911 to know if they are correct, but here they are:
August 2003 Sportscar F-189
Improved Touring
ITS
2. Porsche 911 T & E (68-73), p27., correct specs as follows: model years 68-69, comp. ratio: 9.1, wheelbase(in): 1968: 87.0, 19699: 89.3.
3. Classify Porsche 911 T & E (70-72). Add new spec line to ITCS p27, Porsche 911 T & E (70-72), Engine Type: 6 Cyl SOHC, Bore(mm) x Stroke(mm)/Displ.(cc): 84.0 x 66.0 / 2195, Valves IN & EX(mm): 46.1(I), 40.1(E), Comp Ratio: 9.8, Wheelbase(in): 89.3, Wheel Dia(in): 15, Gear Ratios: 3.09, 1.63, 1.04, 0.79, & 3.09, 1.89, 1.32,1.04, 0.79, Brakes Std.(mm): (F) 282 Disc, (R) 290 Disc, Weight(lbs.): 2485
4. Classify Porsche 911 T & E (73). Add new spec line to ITCS p27, Porsche 911 T & E (73), Engine Type: 6Cyl SOHC, Bore(mm) x Stroke(mm)/Disp.(cc): 84.0 x 70.4 / 2341, Valves IN & EX(mm): 46.0 (I), 40.1 (E), Comp Ratio: 8.0, Wheelbase(in): 89.3, Wheel Dia(in): 15, Gear Ratios: 3.09, 1.63, 1.04, 0.79, & 3.09, 1.89, 1.32, 1.04, 0.79, Brakes Std.(mm): (F) 282 Disc, (R) 290 Disc, Weight(lbs): 2585
August 2003 Sportscar F-189
Improved Touring
ITS
2. Porsche 911 T & E (68-73), p27., correct specs as follows: model years 68-69, comp. ratio: 9.1, wheelbase(in): 1968: 87.0, 19699: 89.3.
3. Classify Porsche 911 T & E (70-72). Add new spec line to ITCS p27, Porsche 911 T & E (70-72), Engine Type: 6 Cyl SOHC, Bore(mm) x Stroke(mm)/Displ.(cc): 84.0 x 66.0 / 2195, Valves IN & EX(mm): 46.1(I), 40.1(E), Comp Ratio: 9.8, Wheelbase(in): 89.3, Wheel Dia(in): 15, Gear Ratios: 3.09, 1.63, 1.04, 0.79, & 3.09, 1.89, 1.32,1.04, 0.79, Brakes Std.(mm): (F) 282 Disc, (R) 290 Disc, Weight(lbs.): 2485
4. Classify Porsche 911 T & E (73). Add new spec line to ITCS p27, Porsche 911 T & E (73), Engine Type: 6Cyl SOHC, Bore(mm) x Stroke(mm)/Disp.(cc): 84.0 x 70.4 / 2341, Valves IN & EX(mm): 46.0 (I), 40.1 (E), Comp Ratio: 8.0, Wheelbase(in): 89.3, Wheel Dia(in): 15, Gear Ratios: 3.09, 1.63, 1.04, 0.79, & 3.09, 1.89, 1.32, 1.04, 0.79, Brakes Std.(mm): (F) 282 Disc, (R) 290 Disc, Weight(lbs): 2585
07-14-2003, 09:51 AM
#2
Addict
Rennlist Member
Rennlist Member
So, what's the consensus from the rear-engine crowd? Are these going to stand a chance at being competitive in ITS?
07-14-2003, 06:01 PM
#3
Rennlist Member
first 70-71 is the 2.2L, 72-73 is the 2.4L.
Im not real familiar with ITS rules, what can be done to the engine, i.e. what kind of injection system, can you use larger size carbs, can you use a more aggressive cam shaft. Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
Im not real familiar with ITS rules, what can be done to the engine, i.e. what kind of injection system, can you use larger size carbs, can you use a more aggressive cam shaft. Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
07-14-2003, 08:24 PM
#4
Race Director
Thread Starter
Originally posted by Stuttgart
first 70-71 is the 2.2L, 72-73 is the 2.4L.
first 70-71 is the 2.2L, 72-73 is the 2.4L.
Can you point me to a reliable (and readily available) reference that I can use to correct this?
Originally posted by Stuttgart
Im not real familiar with ITS rules, what can be done to the engine, i.e. what kind of injection system, can you use larger size carbs, can you use a more aggressive cam shaft.
Im not real familiar with ITS rules, what can be done to the engine, i.e. what kind of injection system, can you use larger size carbs, can you use a more aggressive cam shaft.
Originally posted by Stuttgart
Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Originally posted by Stuttgart
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
07-15-2003, 04:15 AM
#5
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Rennlist Member
Rennlist Member
Originally posted by Stuttgart
first 70-71 is the 2.2L, 72-73 is the 2.4L.
Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
first 70-71 is the 2.2L, 72-73 is the 2.4L.
Judging so far by scca's lack of knowledge about these cars i think they would be hard pressed to figure out what would be considered cheating and what wouldn't be.
Also, the min. weight seems a little high as the stock weight for the 70-71 911 as listed in pca club racing (stock interior) is 2250, and 2310 for the 72-73 911. I'm guessing this includes the driver, so with the interior removed this should allow you to make these cars have more of a 50/50 weight distribution with creative use of ballast.
Thank you for calling!
If you're looking for a place to race an IT Porsche and be competitive, you may wish to check out the GTS Challenge: www.gtschallenge.com
07-19-2003, 12:02 AM
#6
Burning Brakes
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Re: SCCA ITS specs for 911 T & E Corrected
Originally posted by Geo
3. Classify Porsche 911 T & E (70-72). Add new spec line to ITCS p27, Porsche 911 T & E (70-72), Engine Type: 6 Cyl SOHC, Bore(mm) x Stroke(mm)/Displ.(cc): 84.0 x 66.0 / 2195, Valves IN & EX(mm): 46.1(I), 40.1(E), Comp Ratio: 9.8,
3. Classify Porsche 911 T & E (70-72). Add new spec line to ITCS p27, Porsche 911 T & E (70-72), Engine Type: 6 Cyl SOHC, Bore(mm) x Stroke(mm)/Displ.(cc): 84.0 x 66.0 / 2195, Valves IN & EX(mm): 46.1(I), 40.1(E), Comp Ratio: 9.8,
