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Old 02-09-2014, 11:51 AM   #1
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Default Not as much power than before with 99/00 head

What am i doing wrong. Can somebody look at my tune and datalog?

The car has a 99/00 engine swap on my original 94 swap. The head itself was rebuild, but just oem stuff nothing special. Car has Intake and exhaust.

According to my datalog my 80-120km/h is around 1,5 sec slower. My fastest before was 5,9s. And now its only around 7,4. I can also feel its slower


2014-02-09_16_modified.msl downloaden

2014-02-09_16.43.25.msq downloaden


EDIT: I'm still learning into tuning with megasquirt
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Old 02-09-2014, 12:20 PM   #2
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You sure the mechanical timing is correct?
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Old 02-09-2014, 12:23 PM   #3
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Yes, the timing was set with a timing light at 10 degrees, this was correct with the tunerstudio after trigger wizard. after that i started to change the timing table.

I can check it again to be sure

EDIT: The car runs fine, has nice idle etc
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Old 02-09-2014, 12:32 PM   #4
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I just rechecked it, the car was still hot.. And yes the timing is correct at 10 degrees. It is the same as tunerstudio after the trigger wizard
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Old 02-09-2014, 12:43 PM   #5
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Not ignition timing, cam timing.
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Old 02-09-2014, 02:10 PM   #6
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Cam timing is okey, i'm pretty sure.

I've got the problem, the problem is there are 2 marking dots on the pulley. one yellow, one white. I used the white one which was wrong.

Car seems to be fine now
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Old 02-09-2014, 02:28 PM   #7
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I think some pulleys have a mark for 10*, and one that points at TDC when at 10*.

Always good to check that pulley mark too. Put a socket extension in #1 and find TDC, then make sure that mark points at the "T". They can slip.
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