Hur mycket effekt pallar automatlådan på en 740 TIC -88?
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Hur mycket effekt pallar automatlådan på en 740 TIC -88?
Som topic, hur mycket effekt kan man köra med en original automatlåda som sitter på en 740 TIC -88?
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zf eller aw71?
16V/HX40 billet/filat lite överallt & vems. 540hp & 566Nm på naven @ 1.5 bar
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är det lock up på den?
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Re: Hur mycket effekt pallar automatlådan på en 740 TIC -88?
Hur identifierar man lättast om man har aw71 eller zf automat? står det något på lådorna eller? Har en liggandes. Växlade fint och mjukt iaf. Minns inte mycke om den förutom det. Den åkte ur bilen andra dagen i min ägo. Min har lockup..
EDIT: Hittade att jag har aw72 pga b234f motorn.. Den pallar tydligen aningen mer vrid än 71an.. Och har annan utväxling på 4an(överväxeln) och kickdownen drar till 6k rpm..
EDIT: Hittade att jag har aw72 pga b234f motorn.. Den pallar tydligen aningen mer vrid än 71an.. Och har annan utväxling på 4an(överväxeln) och kickdownen drar till 6k rpm..
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aw71 har iaf lockup. det har inte ZFn, sen sitter det en ZF logga på sidan av lådan .
16V/HX40 billet/filat lite överallt & vems. 540hp & 566Nm på naven @ 1.5 bar
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Not sure what that means, however-stadigare lammelpaket
AW71 and AW72 are both Asin A43D/DL transmissions.
The differences between a 71 and a 72:
Gear ratios
Governor spring pressure (controls shifting when transmission is in "D")
They use the same clutches and the same number of clutches in both transmissions. There might be some very small differences in the spring rates used in the shift valves.
An Aw71 is probably a stronger transmission, as the aw72 uses a slip on gear 'collar' going into the planetary gears coming out of the center brake cluster, the aw71 uses a solid one-piece gear for this part of the assembly.
AW71 gear (top right corner of the bin)
can't find a picture of the aw72 gear
Anyway, to get one to last longer behind a stronger volvo motor, you will need to lock the accumulators (the three pistons in the case)
This will cause the transmission to shift 'quicker', no lag between gears. There are also ports in the valve body that can be drilled out to make it shift harder, as well as cause it to run full line pressure before full throttle. I do not have pictures of these modifications.
Also, manually upshifting the transmission is probably better for it as well, since it forces fluid to travel through fewer parts of the transmission.
1990 740 gl
2003 Evo 8
2003 Evo 8
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very interesting in what position should the pistons be locked och what is the best way to lock them?linuxman51 skrev:Anyway, to get one to last longer behind a stronger volvo motor, you will need to lock the accumulators (the three pistons in the case)
This will cause the transmission to shift 'quicker', no lag between gears. There are also ports in the valve body that can be drilled out to make it shift harder
does one have to be a rocket scientist to find the ports in the valve body or does it become obvious when you take it apart?
sounds good but what different does it make in reality?linuxman51 skrev:as well as cause it to run full line pressure before full throttle.
aah well, text is better than nothing most swedes are too stupid to realize the benefits of an automatic transmission = the general knowledge is very low over herelinuxman51 skrev:I do not have pictures of these modifications
No Victim - No Crime
noen som vet om den klarar med 300hk ??
Volvo 242 600hk 800nm
Volvo 242 Gr-A 350hk
Volvo 242 Banebil 350hk
Volvo 242 16v turbo 400hk
Volvo 245 Turbo bruksbil 300hk
http://www.volvo-racing.i2.no" onclick="window.open(this.href);return false;
Volvo 242 Gr-A 350hk
Volvo 242 Banebil 350hk
Volvo 242 16v turbo 400hk
Volvo 245 Turbo bruksbil 300hk
http://www.volvo-racing.i2.no" onclick="window.open(this.href);return false;
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min har en trimmad FK. laddar fult v/ 2500rpm, varvar til 6000rpm
Volvo 242 600hk 800nm
Volvo 242 Gr-A 350hk
Volvo 242 Banebil 350hk
Volvo 242 16v turbo 400hk
Volvo 245 Turbo bruksbil 300hk
http://www.volvo-racing.i2.no" onclick="window.open(this.href);return false;
Volvo 242 Gr-A 350hk
Volvo 242 Banebil 350hk
Volvo 242 16v turbo 400hk
Volvo 245 Turbo bruksbil 300hk
http://www.volvo-racing.i2.no" onclick="window.open(this.href);return false;
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You need to know what to drill, there are lots of holes in the valve body plate.^MeTaNoLiC^ skrev: very interesting in what position should the pistons be locked och what is the best way to lock them?
does one have to be a rocket scientist to find the ports in the valve body or does it become obvious when you take it apart?
In this picture, the two circled in red would be for the 1-2 shift and then the 2-3 shift, those holes would be drilled a bit larger, but not bigger than the checkball unless you plan to remove the ball.
I locked my accumulators so that they had ~ 1/8th of an inch or about 2mm of movement down. You can use anything.
Sooner the line pressure is up the more pressure is applied to keep the clutches engaged, the less likely it is to slip as much. its the slipping in between shifts thats partially responsible for wearing the transmissions out at higher power levels.sounds good but what different does it make in reality?
aah well, text is better than nothing most swedes are too stupid to realize the benefits of an automatic transmission = the general knowledge is very low over here [/quote]linuxman51 skrev:I do not have pictures of these modifications
Well, after spending some time looking at the AW7X transmissions, more to satisfy my own curiosity, I've come to the conclusion that most people want nothing to do with asin transmissions. Not sure why really, they're great transmissions and have a lower friction design than most GM transmissions.
The A341e from the 960 is the same basic transmission as the mk4 supra turbo, if one made a bellhousing for that, you could put that transmission behind a redblock, after some modifications it could hold a lot of power.
1990 740 gl
2003 Evo 8
2003 Evo 8