Anyone that has a ported head and a Turbonator cal, can you post your PumpEff table? Specifically looking for one for a ported swirl head, on a 2.5 if it matters. Got a Daytona with a 2.5 CB and a fully ported big-valve swirl head w/ beehives and an F4 cam, trying to get it tuned. Running an '87 LM.
As a starting point, I would take the stock 2.5 PEFTBL, and 'rotate' it around the 3000rpm point. Basically, lower the low RPM data points 1-2 percentage points, and the points closer to 3k by 0.5-1 point. Then, raise everything above 3k similarly. Though with big valves you'll want to increase the top end more. The points above 4.5k you should raise 3-4 points at least, maybe 5-6 even; and then push them to the right ~200rpm. The 'flat spot' above ~6k I would leave. It ensures a richer mixture at high rpm to help save the head gasket.
When you say points, you mean each 1%, not just just one click of the arrow key right?
Right, Percentage points. About 2 cursor clucks per point (very roughly).Originally Posted by Force Fed Mopar
What did your PumpEff end up looking like?
Wayne H.
'91 Dodge Spirit ES 2.5L turbo 5spd
'05 PT GT 2.4T HO autostick (RIP)
'89 Plymouth Acclaim 2.5L turbo auto, "Slugmobile" yes, THE Slugmobile!
'89 Dodge Caravan SE 2.5L turbo auto, "Mean Mini" yes, Gus' Mean Mini! (Current best 11.699 @ 114.43 mph! - Oct 15th, 2022 Cecil County Dragway, MD)
MeanMini dragracing videos: https://www.youtube.com/playlist?lis...URZLB1RxGYF6vw
and other cars, trucks and motorcycles
https://www.youtube.com/user/SlugmobileMeanMini
I haven't finished it yet lol, my available time for playing with this stuff is somewhat shorter now that I'm assistant manager at Oreilly'sI'll probably get some done on it tomorrow while I'm off, in between honey-do lists...
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