Quote:
Originally Posted by GD1981
Agreed, Map 1 I didn’t feel like much. Map 2 did make a difference to me according to dragy....but the substantial difference was realized once i mixed in some E85 juice and then bumped up to Map3. I’m planning to install a DP and an EWG connector in the coming days which also should see a substantial gain.
Unfortunately for us 2021 guys, its the only route(for now) we can take in terms of tuning.
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Exactly..People running the higher jb4 maps like 3 and up need to be adding octane in order to get full effect of the extra boost pressure. 91 or straight 93 octane with the added boost will probably cause ignition timing to be retarded, especially in hot weather. I run a jb+ maxed out which would kind of be like in between map 2 and 3 on jb4 at 4.5psi over stock. I also run a E85/93 mix, around 96 octane and the car runs great. Pulls hard to redline and traps 117mph in the 1/4. Wish I could run 2psi more for 120mph traps. Might trade the jb+ in on a jb4