Need tune
Thread Starter
Cruising
Joined: Jun 2020
Posts: 11
Likes: 0
Need tune
I am installing a set of LT headers w/xpipe so I’d like to buy a simple Email tune to download with my tuner? Does anybody know where I can get one? SCT hasn’t been helpful AT ALL! Thanks
Last edited by Dave R. Quintero; Jun 19, 2020 at 08:20 AM.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
My understanding is that when doing a gear change on a C5 you DO NOT have to make a speedo correction--because the speedo sensor is on the output of the trans axle
However you do have to make a "shift point correction" by a % based on the + or - % of the change For example if you had a 2.73 gear and installed a 3.42 gear -- you would need to alter both the P/T and WOT MPH shift points by -25 %
Most common reasons for a P1870 code is a stall converter OR the shift point corrections were not made -- You would notice the code at WOT sometimes
Could also be your trans is indeed slipping !!!
However you do have to make a "shift point correction" by a % based on the + or - % of the change For example if you had a 2.73 gear and installed a 3.42 gear -- you would need to alter both the P/T and WOT MPH shift points by -25 %
Most common reasons for a P1870 code is a stall converter OR the shift point corrections were not made -- You would notice the code at WOT sometimes
Could also be your trans is indeed slipping !!!
Thread Starter
Cruising
Joined: Jun 2020
Posts: 11
Likes: 0
Thank you, But, I was getting an 1870 code because of the gear change, no my transmission is not slipping. I already took care of that with my tuner. I am well aware of how gear changes effect a C5. I even stated in my thread “it worked like a charm.” However that’s not what I was asking. My point was, since I now have that tuner, I am looking for an email tuner who sets up compatible tunes which I can install with Derive and my SCT X4
Thread Starter
Cruising
Joined: Jun 2020
Posts: 11
Likes: 0
Not at all true. When you change to a higher rear end gear you get a P1870 because the computer detects trans slippage. But like I said before. IFIXED IT!. There is nothing wrong with the install! I’M LOOKING FOR A TUNE FOR MY HEADERS AND AIR CLEANER!
