Wait for me tune

pj5454302 · 10-16-2009, 02:38 PM

Well after searching the fourm i deduced that this is the way to go. Some questions though, do you remove your ecm and send it in? if you do than you just dont have your vehicle for a week? just need some questions answered.

00s104.3 · 10-16-2009, 10:22 PM

It's my understanding that you can send in your PCM to be tuned and then your truck would be out of commission until it comes back or you can buy a tuned PCM from them as well but then you may need to have a crankshaft relearn procedure done buy a capable shop.

badhombre · 10-18-2009, 10:29 PM

00s104.3's right... my truck runs great with their tune... I had them lower idle...raise shift points...torque management...and 93 octane tune...

gchemist · 10-21-2009, 01:00 AM

It's less expensive to send yours in. I parked my Jimmy for a week. The tune is great! I gained about 1 mpg in the city. 2-3 on the highway. My Jimmy can cruise 80 MPH and get 20 MPG. At 70, it can get 22-23. I like the tune. Especially the torque management reduction. I had it reduced 75%. Shifts are great. Accelleration is better too. The rev limiter goes higher on shifts. Best $86 spent on my Jimmy!!

I still have the document I sent in with my PCM. If you want a copy send me your e-mail address. You can update information on it and send it.

00s104.3 · 10-21-2009, 04:13 AM

Quote: Originally Posted by gchemist

It's less expensive to send yours in. I parked my Jimmy for a week. The tune is great! I gained about 1 mpg in the city. 2-3 on the highway. My Jimmy can cruise 80 MPH and get 20 MPG. At 70, it can get 22-23. I like the tune. Especially the torque management reduction. I had it reduced 75%. Shifts are great. Accelleration is better too. The rev limiter goes higher on shifts. Best $86 spent on my Jimmy!!

I still have the document I sent in with my PCM. If you want a copy send me your e-mail address. You can update information on it and send it.

That sounds pretty good. What grade of fuel did you have it tuned for?

gchemist · 10-21-2009, 02:01 PM

I use 87 octane. The difference in city milage is torque converter lock up. In Blazers and Jimmys, the converter is really loose. I could drive for miles on the highway before it would lockup. Sometimes, I had to slow down then speed up slowly to get it to lock. The tune changes how the converter behaves. The converter is locked above 45 MPH if the tranny is in OD. The same goes for driving in 3rd. Removal of the rev limit changed accelleration. The engine can rev past 5000 RPMs before shifting! First gear is really fun. It's even better for S-10 trucks.

Higher octane gas has better improvements.

00s104.3 · 10-21-2009, 05:54 PM

Quote: Originally Posted by gchemist

I use 87 octane. The difference in city milage is torque converter lock up. In Blazers and Jimmys, the converter is really loose. I could drive for miles on the highway before it would lockup. Sometimes, I had to slow down then speed up slowly to get it to lock. The tune changes how the converter behaves. The converter is locked above 45 MPH if the tranny is in OD. The same goes for driving in 3rd. Removal of the rev limit changed accelleration. The engine can rev past 5000 RPMs before shifting! First gear is really fun. It's even better for S-10 trucks.

Higher octane gas has better improvements.

Wow thanks for the info. I don't really know much about torque converter lockup and such but it sounds like there is an improvement for how it behaves. I have been wanting to get a tune and I have been reading about them online and the only thing I'm unsure of is the torque management. I'm scared to mess with it for fear of tranny problems later on.

pj5454302 I apologize for hijacking your thread.

gchemist · 10-21-2009, 07:34 PM

Torque management is only a GM technical term. Engines with torque management change how an engine and tranny act. The PCM reduces timing during the shift. Trannys are shifted "smooth" by reducing line pressure. Reducing the management keeps timing at engine RPMs. Oil line pressure is increased for firmer and faster shifts. 75% is the recommendation. Anything more and the tranny will shift too hard for the street. A high milage tranny wont live long either. You can request a lower reduction rate, like 50%.

ZQ8 Blazer · 10-22-2009, 11:45 PM

Higher mileage won't last long @ 75%? I'm going to get this done on my Blazer but don't really know what all to have done.

gchemist · 10-22-2009, 11:54 PM

Reducing torque management above 75%+ for a stock tranny could shorten its life. Especially a high milage tranny. For my piece of mind, I added an external oil cooler.

ZQ8 Blazer · 10-23-2009, 12:02 AM

oh ok, thanks

10-16-2009, 02:38 PM	#1
pj5454302 Registered User Age: 19 Join Date: Mar 2009 Posts: 129 Location: Green bay Wi User is: OffLine	Wait for me tune Well after searching the fourm i deduced that this is the way to go. Some questions though, do you remove your ecm and send it in? if you do than you just dont have your vehicle for a week? just need some questions answered.
	[Reply w/Quote]

10-16-2009, 10:22 PM	#2
00s104.3 Ellismate FTW!! Join Date: Nov 2005 Posts: 767 Location: Nevada User is: OffLine	Re: Wait for me tune It's my understanding that you can send in your PCM to be tuned and then your truck would be out of commission until it comes back or you can buy a tuned PCM from them as well but then you may need to have a crankshaft relearn procedure done buy a capable shop.
	[Reply w/Quote]

10-18-2009, 10:29 PM	#3
badhombre Registered User Join Date: Jan 2003 Posts: 70 Location: t-town User is: OffLine	Re: Wait for me tune 00s104.3's right... my truck runs great with their tune... I had them lower idle...raise shift points...torque management...and 93 octane tune...
	[Reply w/Quote]

10-21-2009, 01:00 AM	#4
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Wait for me tune It's less expensive to send yours in. I parked my Jimmy for a week. The tune is great! I gained about 1 mpg in the city. 2-3 on the highway. My Jimmy can cruise 80 MPH and get 20 MPG. At 70, it can get 22-23. I like the tune. Especially the torque management reduction. I had it reduced 75%. Shifts are great. Accelleration is better too. The rev limiter goes higher on shifts. Best $86 spent on my Jimmy!! I still have the document I sent in with my PCM. If you want a copy send me your e-mail address. You can update information on it and send it. Last edited by gchemist : 10-21-2009 at 01:03 AM.
	[Reply w/Quote]

10-21-2009, 04:13 AM	#5
00s104.3 Ellismate FTW!! Join Date: Nov 2005 Posts: 767 Location: Nevada User is: OffLine	Re: Wait for me tune Quote: Originally Posted by gchemist It's less expensive to send yours in. I parked my Jimmy for a week. The tune is great! I gained about 1 mpg in the city. 2-3 on the highway. My Jimmy can cruise 80 MPH and get 20 MPG. At 70, it can get 22-23. I like the tune. Especially the torque management reduction. I had it reduced 75%. Shifts are great. Accelleration is better too. The rev limiter goes higher on shifts. Best $86 spent on my Jimmy!! I still have the document I sent in with my PCM. If you want a copy send me your e-mail address. You can update information on it and send it. That sounds pretty good. What grade of fuel did you have it tuned for?
	[Reply w/Quote]

10-21-2009, 02:01 PM	#6
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Wait for me tune I use 87 octane. The difference in city milage is torque converter lock up. In Blazers and Jimmys, the converter is really loose. I could drive for miles on the highway before it would lockup. Sometimes, I had to slow down then speed up slowly to get it to lock. The tune changes how the converter behaves. The converter is locked above 45 MPH if the tranny is in OD. The same goes for driving in 3rd. Removal of the rev limit changed accelleration. The engine can rev past 5000 RPMs before shifting! First gear is really fun. It's even better for S-10 trucks. Higher octane gas has better improvements.
	[Reply w/Quote]

10-21-2009, 05:54 PM	#7
00s104.3 Ellismate FTW!! Join Date: Nov 2005 Posts: 767 Location: Nevada User is: OffLine	Re: Wait for me tune Quote: Originally Posted by gchemist I use 87 octane. The difference in city milage is torque converter lock up. In Blazers and Jimmys, the converter is really loose. I could drive for miles on the highway before it would lockup. Sometimes, I had to slow down then speed up slowly to get it to lock. The tune changes how the converter behaves. The converter is locked above 45 MPH if the tranny is in OD. The same goes for driving in 3rd. Removal of the rev limit changed accelleration. The engine can rev past 5000 RPMs before shifting! First gear is really fun. It's even better for S-10 trucks. Higher octane gas has better improvements. Wow thanks for the info. I don't really know much about torque converter lockup and such but it sounds like there is an improvement for how it behaves. I have been wanting to get a tune and I have been reading about them online and the only thing I'm unsure of is the torque management. I'm scared to mess with it for fear of tranny problems later on. pj5454302 I apologize for hijacking your thread.
	[Reply w/Quote]

10-21-2009, 07:34 PM	#8
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Wait for me tune Torque management is only a GM technical term. Engines with torque management change how an engine and tranny act. The PCM reduces timing during the shift. Trannys are shifted "smooth" by reducing line pressure. Reducing the management keeps timing at engine RPMs. Oil line pressure is increased for firmer and faster shifts. 75% is the recommendation. Anything more and the tranny will shift too hard for the street. A high milage tranny wont live long either. You can request a lower reduction rate, like 50%.
	[Reply w/Quote]

10-22-2009, 11:45 PM	#9
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,722 Location: Western, Ky User is: OffLine	Re: Wait for me tune Higher mileage won't last long @ 75%? I'm going to get this done on my Blazer but don't really know what all to have done.
	[Reply w/Quote]

10-22-2009, 11:54 PM	#10
gchemist Registered User Join Date: May 2006 Posts: 356 Location: Austin User is: OffLine	Re: Wait for me tune Reducing torque management above 75%+ for a stock tranny could shorten its life. Especially a high milage tranny. For my piece of mind, I added an external oil cooler.
	[Reply w/Quote]

10-23-2009, 12:02 AM	#11
ZQ8 Blazer ZQ8 Blazer Age: 26 Join Date: Jul 2004 Posts: 8,722 Location: Western, Ky User is: OffLine	Re: Wait for me tune oh ok, thanks
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