I have a car which was already mapped on a GT28 running 1.5 bar and with no signs of det and a/f was perfect. I want to change to a GT3076 and want to redo the map myself and was wondering will the Ignition map need to be redone? I am going to run the new turbo at 1.1-1.2 bar for the meantime as I need to change a few bits before I can run higher boost.
Will the ignition change much if any? If so i think I'll knock off 4-5 degrees to start of with and see if I hear anything on the det cans.
Re-tuning ignition with a bigger turbo and less boost?
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0). For tuning/troubleshooting questions, please attached a datalog and your MSQ file to your post.
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Matt Cramer
- Super Squirter
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- Joined: Sat Jul 03, 2004 11:35 am
Re: Re-tuning ignition with a bigger turbo and less boost?
That depends on how well the map was tuned at the kPa row you'll be running in now... And with the different back pressure level, there's a very good chance it will want a different amount of timing.
Re: Re-tuning ignition with a bigger turbo and less boost?
well the exhaust housings for both turbos are the same and I the previous turbo was mapped and run between 0.8-1.5bar in 0.5bar increments and there was no det whatsoever. I think I am gonna back of the timing 4-5 degrees and go from there if I don't hear any det.