A Poll on your shift points

[Rkammer]

I'm interested in hearing where folks have their WOT shift points and rev limits set on their normally aspirated (and reporgrammed) 03 and 04 MMs. Please list in RPM and in order: 1-2 shift, 2-3 shift, Rev limit. Thanks for your feedback. Mine is currently set at 6100, 6000, and 6500. I'm considering going higher.

[Joe Walsh]

1-2@ 6100, 2-3@ 6100 & 6500 rev limit.

Seems to be about right. I might try 6200/6200 on the shifts.

[Blackened300a]

1st@ 6100

2nd@ 6200

3rd@??? I haven't wound it all the way out

[bugsys03]

6200 all shifts, never hit the limiter, dont want to know :D

[Dark_Knight7096]

6100 in 1st, 6200 in 2nd, and haven't wound it all the way out in 3rd.

[MENINBLK]

Lidio's Tune...

6100 RPM at all shift points.
Rev Limiter disabled...

If you want to go more than 6500 RPM, you need some
serious engine work in order to keep the engine from grenading.

[Smokie]

Lidio's Tune...

6100 RPM at all shift points.
Rev Limiter disabled...

If you want to go more than 6500 RPM, you need some
serious engine work in order to keep the engine from grenading.Do you mean the speed limiter is disabled??? If you disabled the rev limiter how do you protect the engine from accidental over revving???

[Joe Walsh]

Lidio's Tune...

6100 RPM at all shift points.
Rev Limiter disabled...

If you want to go more than 6500 RPM, you need some
serious engine work in order to keep the engine from grenading.

You just got me thinking..I've got a forged internal engine that should be good to 7000 rpm,
BUT on the dyno there was not any sense in running it past @6100-6200 rpm because the power curve was dropping off.
Do the S/C Marauders really want to rev past @6200??....and are they still making good power up there??? (please...No S/C war!)

[MENINBLK]

Do you mean the speed limiter is disabled??? If you disabled the rev limiter how do you protect the engine from accidental over revving???

I don't accidentally over-rev my engine.
Since I installed the Tune, I leave it in D and let the Tune do the shifting.
When driving around town, I disable the OD.

No worries about over-revving here...

[Rkammer]

I don't accidentally over-rev my engine.
Since I installed the Tune, I leave it in D and let the Tune do the shifting.
When driving around town, I disable the OD.

No worries about over-revving here...
.....and in the unlikely event that your tranny gives up an input shaft while you're on one of those bonzai runs or for some other reason slips out of gear, your engine if free to rev till it flies apart. For safety sake you should establish a rev limit in your program. :D

[Smokie]

You just got me thinking..I've got a forged internal engine that should be good to 7000 rpm,
BUT on the dyno there was not any sense in running it past @6100-6200 rpm because the power curve was dropping off.
Do the S/C Marauders really want to rev past @6200??....and are they still making good power up there??? (please...No S/C war!)I will try to answer in general terms. Yes the S/C Marauders can make some power past 6200 rpm's, centrifugals will make more power than Roots past 6200 rpm's since usually by 6200 the roots blower is no longer creating higher boost pressure where as the Centrifugals will continue to increase boost past 6200 rpm's.

The point to consider is this: at what rpm's does your tranny shift??? Any power your engine makes ABOVE your shift points will not produce any results you can use since your tranny is not letting you get there, so in my opinion a dyno run does not NEED to go more than maybe 1000 rpm's above your shift points. That's how I see it ...opinions will vary...:D

[SergntMac]

Back up a second and look at history?

Custom tunes on a hand-held programming tool is not the birth of shift points.

A gear shift should occur when the maximum power in the present gear has been achieved, and exhausted. When you cannot get anymore power from your present gear, shift to the next lowest gear.

This is exactly why we lust for a manual tranny, so, we can make this decision for ourselves. But, that's not going to happen, and we are left to endure what others believe works for us.

It's not an "across the board" setting, every individual Marauder will be different, and this is why I suggest that all who have bought custom tuning from anyone, get dyno tuning ASAP.

Until you do, your tuning is a "suit off the rack". Get that tailored, you'll feel much better, and your "suit" will fit your use.

[Joe Walsh]

Back up a second and look at history?

Custom tunes on a hand-held programming tool is not the birth of shift points.

A gear shift should occur when the maximum power in the present gear has been achieved, and exhausted. When you cannot get anymore power from your present gear, shift to the next lowest gear.

This is exactly why we lust for a manual tranny, so, we can make this decision for ourselves. But, that's not going to happen, and we are left to endure what others believe works for us.

It's not an "across the board" setting, every individual Marauder will be different, and this is why I suggest that all who have bought custom tuning from anyone, get dyno tuning ASAP.
Until you do, your tuning is a "suit off the rack". Get that tailored, you'll feel much better, and your "suit" will fit your use.

I couldn't agree more...When I had my new engine combo dyno-tuned prior to MVIII the stock program made 293.47 HP & 288.43 LB/FT Torque.
We then installed a 'custom tune' I had purchased on a SCT 9100.......
We promptly LOST 6 HP and aborted the dyno run early because it was running so lean.**
After Kaufmann's installed their base tune and tweaked it I had gained 24 HP & 52 FT/LB of Torque!!! (317.06 HP & 339.78 FT/LB Torque :banana: )
We then spent TWICE as much time tweaking my tranny's shift points, OD lock-up point, shift firmness and max shift rpms....
all changes were accompanied by a test drive to check the new settings.
I am so glad that we spent so much time on the tranny because it is now awesome...

** God only knows what I would have done to my brand new engine if I had just downloaded that 'custom tune' and started to run it hard!!! :eek: :eek: :eek:

[HwyCruiser]

I've got my WOT shifts set to 6000 rpm across the board, rev limiter set at 6400 rpm.

At 6000 rpm the dyno read right at 450 rwhp. At just a tad higher than 6200 rpm the dyno read 464 rwhp. Of course those numbers will vary on temperature, but we felt WOT shifting at 6 grand was a good point to whoa the horses.

Another issue to look at with a blown car is pegging the MAF. Fortunately I still have room to spare shifting at 6000 rpm. Maybe not so much when it cools off outside.

I spanked the rev limiter when I invariably lost traction at WOT just before the 1-2 shift with the stock rubber on. Needless to say I'm very happy with the drag radials now that I can run her through the gears and not worry about it.

[Zack]

I go through the traps at about 7000 rpm's.
Nothing to worry about.
With a centrifugal, shifting at any less than 6500 is silly, it will keep making power until your foot gets tired.