PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

408 Tuning

Old May 7, 2006 | 10:33 PM
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Default 408 Tuning

Any of you 408 guys have some tunes you can upload? I'll be starting tuning this week and would like to have a good base to start with. We'll be using HPT. Thanks alot guys/gals.
Chris
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Old May 8, 2006 | 12:47 PM
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Stock is normally a good base to start with.
Is this going to be a SD or OLSD tune?
and have you already changed injector size and adjusted for that?

I'm willing to offer help or advice as I'm probably just a few blocks away from you.
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Old May 8, 2006 | 03:51 PM
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I already tuned for 42# injectors, but I believe its still going to be way off because its tuned for the previous 346 turbo motor/methanol with the 4L60E. Now its 408 NA/Nitrous with the TH400. I'd think the VE's are going to be all wacked out.
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Old May 8, 2006 | 05:35 PM
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A stock VE table is a great place to start.
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Old May 8, 2006 | 05:51 PM
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Well, maybe I should just download a stock VE Table and go from there. I just figured it would be easier to gain access to a close 408 file and just make my minor adjustments.
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Old May 8, 2006 | 07:34 PM
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Originally Posted by LugNutLS1
Well, maybe I should just download a stock VE Table and go from there. I just figured it would be easier to gain access to a close 408 file and just make my minor adjustments.
Good luck If its like my car you will be slowly manipulating every table in the tune!
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