Best way to Manually Shift?

Manarius · #1 11-08-2006, 08:40 AM

Quote:

Originally Posted by sharky512345

This is not true. With the gear selector in 2 the car will shift at 7000 whereas when it is in D it will shift at 6500. I'm not sure about other gears if it is the same or not.

But i don't really think manually shifting the car would be beneficial to accelerating for the extra 500 RPMs, but it could be.

Shift point being 500 rpm different is irrelevant. It's still way out of the torque range.

Earthworm · #2 11-08-2006, 08:53 AM

Quote:

Originally Posted by Manarius

Shift point being 500 rpm different is irrelevant. It's still way out of the torque range.

If I left the shifter in 3rd it would shift to 4th at 210kph instead of 200kph. It took noticably longer to reach 210kph when it shifted at 200kph.

Manarius · #3 11-08-2006, 11:28 PM

Quote:

Originally Posted by Earthworm

If I left the shifter in 3rd it would shift to 4th at 210kph instead of 200kph. It took noticably longer to reach 210kph when it shifted at 200kph.

That's courtesy of having to dig out of 3rd at that point in time. It's still way out of the torque range. Do you think people trying to get max dig out of their 5MT's shift at redline? No. They shift when the torque band runs out. I know my Legacy has no dig after 5500...it's just running out the end of the gear.

TomsSVX · #4 11-09-2006, 08:13 AM

manarius is right. I still rarely take it to 6500 even... just not worth it as there is no power there

Tom

oab_au · #5 11-09-2006, 03:42 PM

Quote:

Originally Posted by TomsSVX

manarius is right. I still rarely take it to 6500 even... just not worth it as there is no power there

Tom

Well Tom, thats why we did the inlet cams,

to extend the torque further up the rev range.

Harvey.

n00b on demand · #6 11-09-2006, 05:30 PM

So basically if it says that your car reaches max horse power at 5500 RPMS, thats where you shift?

TomsSVX · #7 11-09-2006, 08:58 PM

Quote:

Originally Posted by oab_au

Well Tom, thats why we did the inlet cams,

to extend the torque further up the rev range.

Harvey.

Who did, I install 3 sets of cams... THey are not in any cars that are still auto... Anyone else should be shifting sooner than later

Tom

sharky512345 · #8 11-08-2006, 09:09 AM

Quote:

Originally Posted by Manarius

Shift point being 500 rpm different is irrelevant. It's still way out of the torque range.

When have you tried this? I can have the svx shift out of 2nd in D going 80 at 6500 RPMs or wait almost no more time and have it shift out of 2nd going 90 at 7000 RPMs. At 7k RPMs in 2 there is more power than at ~3 or 4k in 3rd.

Hose92SVX · #9 11-08-2006, 12:27 PM

I'm sorry. I didn't mean to start a big debate over shift points. To be honest I was trying to tell the topic host that the main advantage of manual shift comes into play during twisty roads. My bad for not being accurate over the rev limiter and shift points.

mikecg · #10 11-08-2006, 01:15 PM

If you have a stock ECU, your tranny will never shift at 7000rpms. Stock ecu cuts out lower then that. ECUTne ECU have a raise rev limit of something like 7200rpms at the request of the manual guys.

sharky512345 · #11 11-08-2006, 03:04 PM

Quote:

Originally Posted by mikecg

If you have a stock ECU, your tranny will never shift at 7000rpms. Stock ecu cuts out lower then that. ECUTne ECU have a raise rev limit of something like 7200rpms at the request of the manual guys.

The stock ECU will let the SVX rev to 7000 rpms. My stock ECU will not shift higher than 6500 rpms if it is in drive. If i'm in 1,2, or 3 then my stock ECU will be allowed to rev to 7000 rpms, where it will bounce off of the rev limiter.

Ira Davis · #12 11-08-2006, 07:13 PM

Normally I don't tend to say much, I just sit back and take it all in; but this time I think I'll enter the fray.

First I see no reason why shifting gear to gear would harm any automatic transmission. It's designed to be able to do that; however if you don't have a manual valve body (a modified valve body, which allows the operator to determine shift points) I don't really see what the benefit would be. At this point I don't own an SVX (about to change) but I assume that the computer still controlls the shift points like in every other electronically controlled transmission.

Now as someone who has built and dynoed several automatic transmissions I would agree that power braking might not be the thing you want to do in a stock SVX.

These are just my opinions of course, so take it with a grain of salt.

Off subject (sort of) but has anyone thought of having an SVX automatic modified with a manual valve body? As I am about to buy a couple of SVXs I think that might be a project I am willing to take on. Never ripped apart a Subaru automatic before but it functions the same as any other automatic does, which means in theory it can be done. What would the benefit be? Manual shifting; of course!

Now out of curiosity where can I get a manual that details the rebuild of a 4EAT? Basically I need to have flow charts for the clutch packs etc.