у кого есть характеристики валов сток аан, аду и 7а

[brider]

?
заранее спасибо

[кот 500]

такое штоль?

NM (Атмо 160 PS) 034 109 022 B 9,6 mm 34° vUT 3° vOT 034 109 021 AD 9,6 mm 2° nOT 34° nUT

7A (Атмо 170 PS) 54 109 022 10,2 mm 42° vUT 3° vOT 54 109 021 9,6 mm 6° nOT 38° nUT

RR (Turbo 220 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AJ 8,3 mm 2° nOT 25° nUT

3B (Turbo 220 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AJ/AQ 8,3 mm 2° nOT 25° nUT

ABY (Turbo 230 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AP 8,3 mm 2° nOT 25° nUT

AAN (Turbo 230 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AP 8,3 mm 2° nOT 25° nUT

ADU (Turbo 315 PS) 034 109 022 F 9,5 mm 24° vUT 1° nOT 034 109 021 AN 8,3 mm 13° nOT 35°

[brider]

такое штоль?

NM (Атмо 160 PS) 034 109 022 B 9,6 mm 34° vUT 3° vOT 034 109 021 AD 9,6 mm 2° nOT 34° nUT

7A (Атмо 170 PS) 54 109 022 10,2 mm 42° vUT 3° vOT 54 109 021 9,6 mm 6° nOT 38° nUT

RR (Turbo 220 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AJ 8,3 mm 2° nOT 25° nUT

3B (Turbo 220 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AJ/AQ 8,3 mm 2° nOT 25° nUT

ABY (Turbo 230 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AP 8,3 mm 2° nOT 25° nUT

AAN (Turbo 230 PS) 034 109 022 E 8,8 mm 42° vUT 9° vOT 034 109 021 AP 8,3 mm 2° nOT 25° nUT

ADU (Turbo 315 PS) 034 109 022 F 9,5 mm 24° vUT 1° nOT 034 109 021 AN 8,3 mm 13° nOT 35°

ага! спасибо
только фазы не пойму какие у них

[Van Helsing]

http://www.s2forum.com/forum/showthr...?t=1477&page=2



3B/ABY/AAN:

TIMING:
Intake opens 3° after TDC, exhaust opens 42° before BDC

DURATION:
Intake 202°; Exhaust 213°; no overlap -> intake opens 12° after exhaust closes;

ADU:

TIMING:
Intake opens 13° after TDC, exhaust opens 24° before BDC

DURATION:
Intake 202°; Exhaust 205°; no overlap -> intake opens 12° after exhaust closes;

7A:

TIMING:
Intake opens 7° before TDC, exhaust opens 42° before BDC

DURATION:
Intake 224°; Exhaust 213°; no overlap -> intake opens 3° after exhaust closes;

ADU exhaust on 3B/ABY/AAN:

TIMING:
Intake opens 3° after TDC, exhaust opens 24° before BDC

DURATION:
Intake 202°; Exhaust 205°; no overlap -> intake opens 2° after exhaust closes;

7A exhaust on 3B/ABY/AAN:

TIMING:
Intake opens 3° after TDC, exhaust opens 42° before BDC

DURATION:
Intake 202°; Exhaust 213°; no overlap -> intake opens 12° after exhaust closes;


This means that:

1) as a matter of "TIMING" RS2 cams are designed to give best flowing efficiencyes at lower rpm compared to 3B/ABY/AAN. High rpm efficiency is however ensured by a higher exhaust lift of 9.5mm instead of 8.6mm (and by the higher flow and boost rate of the RS2 turbocharger). I belive RS2 cam settings where designed to have best compromise between low rpm and hig rpm performances.

2) using a 7A exhaust cam with a 3B/ABY/AAN intake cam, timing will be the same but you'll have 10.5mm lift instead of 8.6mm which is a sensible difference in final EFFECTIVE FLOW which will more likely be usefull in the higher rpm. Since timing is not changed there are no changes in efficiency rpm ranges.
Compared to the ADU cam you'll have more high rpm efficiency but will have less low rpm torque.

[brider]

Спасибо!

[Van Helsing]

Спасибо!