Is the 07 STI Limited suspension really going to be different???? - Page 2

amdmaxx · 08-29-2006, 03:21 PM

^^^ translate this into 0-60 & 1/4 mile times..

**twiSTies** · 08-29-2006, 04:09 PM

Quote:

Originally Posted by amdmaxx

^^^ translate this into 0-60 & 1/4 mile times..

should gain a significant amount of trap speed.

heres a gearing chart i just plugged in with stock tires and wheels.

HTML Code:

RPM	1st Gear	2nd Gear	3rd Gear	4th Gear	5th Gear	6th Gear
500	3	4	6	8	10	13
600	3	5	8	10	12	15
700	4	6	9	12	14	18
800	4	7	10	13	16	20
900	5	8	11	15	18	23
1000	5	9	13	17	20	25
1100	6	9	14	18	22	28
1200	6	10	15	20	24	30
1300	7	11	16	22	26	33
1400	7	12	18	23	27	35
1500	8	13	19	25	29	38
1600	8	14	20	27	31	40
1700	9	14	21	28	33	43
1800	9	15	23	30	35	45
1900	10	16	24	32	37	48
2000	10	17	25	34	39	50
2100	11	18	26	35	41	53
2200	12	19	28	37	43	55
2300	12	20	29	39	45	58
2400	13	20	30	40	47	60
2500	13	21	31	42	49	63
2600	14	22	33	44	51	66
2700	14	23	34	45	53	68
2800	15	24	35	47	55	71
2900	15	25	36	49	57	73
3000	16	26	38	50	59	76
3100	16	26	39	52	61	78
3200	17	27	40	54	63	81
3300	17	28	41	55	65	83
3400	18	29	43	57	67	86
3500	18	30	44	59	69	88
3600	19	31	45	60	71	91
3700	19	32	46	62	73	93
3800	20	32	48	64	75	96
3900	20	33	49	65	77	98
4000	21	34	50	67	78	101
4100	21	35	51	69	80	103
4200	22	36	53	70	82	106
4300	23	37	54	72	84	108
4400	23	37	55	74	86	111
4500	24	38	56	75	88	113
4600	24	39	58	77	90	116
4700	25	40	59	79	92	118
4800	25	41	60	80	94	121
4900	26	42	61	82	96	123
5000	26	43	63	84	98	126
5100	27	43	64	85	100	128
5200	27	44	65	87	102	131
5300	28	45	66	89	104	134
5400	28	46	68	90	106	136
5500	29	47	69	92	108	139
5600	29	48	70	94	110	141
5700	30	49	71	95	112	144
5800	30	49	73	97	114	146
5900	31	50	74	99	116	149
6000	31	51	75	101	118	151
6100	32	52	76	102	120	154
6200	32	53	78	104	122	156
6300	33	54	79	106	124	159
6400	34	55	80	107	126	161
6500	34	55	81	109	128	164
6600	35	56	83	111	129	166
6700	35	57	84	112	131	169
6800	36	58	85	114	133	171
6900	36	59	86	116	135	174
7000	37	60	88	117	137	176

here's a comparison between the old usdm ratios and jdm ratios in 5th and 6th (all other gear ratios remained static in the comparo).

JDM 5th and 6th vs. USDM 5th and 6th *updated with the 07 ratio changes*!

this is a very welcome change..

jawwadh · 08-29-2006, 04:13 PM

ooh wow they are significantly longer...

**twiSTies** · 08-29-2006, 04:16 PM

Quote:

Originally Posted by jawwadh

ooh wow they are significantly longer...

helloooo higher trap speeds with stock turbos!

cndxrs · 08-29-2006, 04:25 PM

how big of difference is the wheelbase going to make in terms of performance?

amdmaxx · 08-29-2006, 04:57 PM

Is 3rd gear still required for 0-60?

JJ18Sniper · 08-29-2006, 05:06 PM

Quote:

Originally Posted by amdmaxx

Is 3rd gear still required for 0-60?

Apparently not. Looks like 2nd will reach it.

amdmaxx · 08-29-2006, 05:09 PM

good news for magazine freaks, too bad not many editors will start testing sti all over.. Maybe Limited..

cndxrs · 08-29-2006, 05:10 PM

Quote:

Originally Posted by czechsmix

So it looks like even the standard STI gets a downgrade. No getting around it.

Is the 0.6" going to really be much of a downgrade? I.e. will the other suspension components used on the spec-c remain? Is it possible that this geometry with suspension setup may improve rotation?

cndxrs · 08-29-2006, 05:18 PM

Rev. D (2004): The WRX STi received the same Peter Stevens-designed facelift that rest of the Imprezas received. The WRX STi is now capable of being ordered with DCCD.

The WRX STi Spec C Type RA was released. It sported a carbon-fiber wing and a carbon fiber lip. It also had a new set of BBS wheels as well as a newly tuned engine.

The WRX STi V-limited was released. It sports 4-way dampers tuned by Subaru World Rally Team's Group N driver Toshi Arai.

The WRX STi was used for Group N homologation.

Rev. E (2005): The WRX STi receives the same increase in wheelbase as the Spec C. All STis received additional rear fender flaring in order to allow an increase in wheel size. The wheel size went from 17" x 7.5" to 17" x 8". In accordance with the increased wheel width, steering lock-to-lock turns have been reduced. Wheel hub strength was improved. The P.C.D. was changed from 5 x 100 to 5 x 114.3.

The DCCD mechanism is improved with the addition of a yaw rate sensor that helps the AWD's computer determine torque distribution to the wheels.

The WRX STi Spec C WR-limited was used for Group N homologation.

Rev. F (2006): The WRX STi continues on relatively the same. The Impreza line's looks have been changed by Andreas Zapatinas.

The WRX STi Spec C's receives the Arai tuned dampers and a 21-mm swaybar. The rear suspension is changed from rubber bushings to pillowball bushings. The strut tower was further stiffened for improved handling and stability. The strut towers were reinforced for better handling and better ride characteristics. The engine mounts were changed from metal to liquid-filled plastic mounts to reduce vibrations into the car's cabin.

The DCCD is updated with the use of a torque-sensing mechanism inside the DCCD. The torque split is changed to 41/59.

The WRX STi Spec C was used for Group N homologation.

^^^ looking through the enclosed it looks as if all STI's went to the same wheelbase in 05...? Wonder if the spec-c will also be changing, or if the USDM is going to be more standard with the WW STI with the Spec-c being a JDM only specialty car?

fullerton · 08-29-2006, 05:19 PM

the tech manuals subaru puts out aren't always correct when it comes to the sti.

Stee · 08-29-2006, 05:58 PM

Quote:

Originally Posted by czechsmix

I can also tell you the gearing has changed in the 6-speed transmission for 2007 STI Standard and Limited.

Here is the comparison:

2006 STI 6-speed
1st - 3.636
2nd - 2.375
3rd - 1.761
4th - 1.346
5th - 0.971
6th - 0.756

2007 STI 6-speed
1st - 3.636
2nd - 2.235
3rd - 1.521
4th - 1.137
5th - 0.971
6th - 0.756

OK, there's one discrepency here. According to this site, only the 3rd and 4th gear ratios as different for 2007 STI:
http://www.cars101.com/subaru/imprez...tml#mechanical

2007 STI
6speed manual
1st: 3.636
2nd: 2.375
3rd: 1.521
4th:1.137
5th:0.971
6th: 0.756
final 3.9
reverse: 3.545

JJ18Sniper · 08-29-2006, 06:01 PM

^^^ Interesting... possible typo on one of the sites? Which source of information is more dependable?

czechsmix · 08-29-2006, 08:18 PM

Quote:

Originally Posted by JJ18Sniper

^^^ Interesting... possible typo on one of the sites? Which source of information is more dependable?

My source is directly from the latest Subaru Service Manuals. I have a subscription to http://techinfo.subaru.com

Ver7wannabe · 08-30-2006, 05:09 AM

Quote:

Originally Posted by czechsmix

My source is directly from the latest Subaru Service Manuals. I have a subscription to http://techinfo.subaru.com

Can you confirm that the Standard STI wheelbase went down to 99.4" in 2005 like cndxrs said?

08-29-2006, 03:21 PM	#16
amdmaxx Stage 2 Moderator Car: 06 Saabaru 9-2x Aero Fav Mod: Larger breasts Location: Northern NJ, USA Posts: 1,389 Join Date: Nov 2002 Trader Rating: (0)	^^^ translate this into 0-60 & 1/4 mile times.. This ad is not endorsed by this member. Please register or login to hide this ad.

08-29-2006, 04:13 PM	#18
jawwadh Grassroots STI Racer Car: 04 wrb sti Fav Mod: AP st2 Location: oak lawn, il Posts: 521 Join Date: Dec 2005 Trader Rating: (1)	ooh wow they are significantly longer...

08-29-2006, 04:25 PM	#20
cndxrs Junior STI Driver Location: Canada Posts: 168 Join Date: Jul 2005 Trader Rating: (0)	how big of difference is the wheelbase going to make in terms of performance?

08-29-2006, 04:57 PM	#21
amdmaxx Stage 2 Moderator Car: 06 Saabaru 9-2x Aero Fav Mod: Larger breasts Location: Northern NJ, USA Posts: 1,389 Join Date: Nov 2002 Trader Rating: (0)	Is 3rd gear still required for 0-60?

08-29-2006, 05:09 PM	#23
amdmaxx Stage 2 Moderator Car: 06 Saabaru 9-2x Aero Fav Mod: Larger breasts Location: Northern NJ, USA Posts: 1,389 Join Date: Nov 2002 Trader Rating: (0)	good news for magazine freaks, too bad not many editors will start testing sti all over.. Maybe Limited..

08-29-2006, 05:18 PM	#25
cndxrs Junior STI Driver Location: Canada Posts: 168 Join Date: Jul 2005 Trader Rating: (0)	Rev. D (2004): The WRX STi received the same Peter Stevens-designed facelift that rest of the Imprezas received. The WRX STi is now capable of being ordered with DCCD. The WRX STi Spec C Type RA was released. It sported a carbon-fiber wing and a carbon fiber lip. It also had a new set of BBS wheels as well as a newly tuned engine. The WRX STi V-limited was released. It sports 4-way dampers tuned by Subaru World Rally Team's Group N driver Toshi Arai. The WRX STi was used for Group N homologation. Rev. E (2005): The WRX STi receives the same increase in wheelbase as the Spec C. All STis received additional rear fender flaring in order to allow an increase in wheel size. The wheel size went from 17" x 7.5" to 17" x 8". In accordance with the increased wheel width, steering lock-to-lock turns have been reduced. Wheel hub strength was improved. The P.C.D. was changed from 5 x 100 to 5 x 114.3. The DCCD mechanism is improved with the addition of a yaw rate sensor that helps the AWD's computer determine torque distribution to the wheels. The WRX STi Spec C WR-limited was used for Group N homologation. Rev. F (2006): The WRX STi continues on relatively the same. The Impreza line's looks have been changed by Andreas Zapatinas. The WRX STi Spec C's receives the Arai tuned dampers and a 21-mm swaybar. The rear suspension is changed from rubber bushings to pillowball bushings. The strut tower was further stiffened for improved handling and stability. The strut towers were reinforced for better handling and better ride characteristics. The engine mounts were changed from metal to liquid-filled plastic mounts to reduce vibrations into the car's cabin. The DCCD is updated with the use of a torque-sensing mechanism inside the DCCD. The torque split is changed to 41/59. The WRX STi Spec C was used for Group N homologation. ^^^ looking through the enclosed it looks as if all STI's went to the same wheelbase in 05...? Wonder if the spec-c will also be changing, or if the USDM is going to be more standard with the WW STI with the Spec-c being a JDM only specialty car?

08-29-2006, 05:19 PM	#26
fullerton abracious Car: AW GDF-D Fav Mod: Track time Location: Near a 100oct pump Posts: 16,538 Join Date: Oct 2005 Trader Rating: (10)	the tech manuals subaru puts out aren't always correct when it comes to the sti.

08-29-2006, 06:01 PM	#28
JJ18Sniper Silver Member Car: 05 Subaru WRX STi Fav Mod: DB 20G, Diamond Black BBS RE's, S2K retrofit Location: NY Posts: 4,591 Join Date: Jul 2004 Trader Rating: (6)	^^^ Interesting... possible typo on one of the sites? Which source of information is more dependable?