Do I need a tune for a rebuilt engine?
09-09-2019, 07:36 PM
#1
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Do I need a tune for a rebuilt engine?
Recently, I have rebuilt a b18c engine and run with power fc.
I had tuned the engine before rebuilt. but at the time I tuned for it , the engine not in perfect condition, just 150psi compression across 4 cylinder.
I rebuilt the engine with 1mm+ oversize piston, same camshaft as before. In this situation , Do I need to retune?
For now, the engine with no issue and I dun have to air/fuel ratio to monitor. So, I dont know does the map fit for my rebuilt engine.
Or any way to know the map is good or bad for my engine.
Thanks.
I had tuned the engine before rebuilt. but at the time I tuned for it , the engine not in perfect condition, just 150psi compression across 4 cylinder.
I rebuilt the engine with 1mm+ oversize piston, same camshaft as before. In this situation , Do I need to retune?
For now, the engine with no issue and I dun have to air/fuel ratio to monitor. So, I dont know does the map fit for my rebuilt engine.
Or any way to know the map is good or bad for my engine.
Thanks.
Last edited by Brembomaster; 09-09-2019 at 09:08 PM.
09-09-2019, 09:07 PM
#3
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Re: Do I need a tune for a rebuilt engine?
Recently, I have rebuilt a b18c engine and run with power fc.
I had tuned the engine before rebuilt. but at the time I tuned for it , the engine not in perfect condition, just 150psi compression across 4 cylinder.
I rebuilt the engine with 1mm+ oversize piston, same camshaft as before. In this situation , Do I need to retune?
For now, the engine with no issue and I dun have to air/fuel ratio to monitor. So, I dont is that map fit for my rebuilt engine.
Or any way to know the map is good or bad for my engine.
Thanks.
I had tuned the engine before rebuilt. but at the time I tuned for it , the engine not in perfect condition, just 150psi compression across 4 cylinder.
I rebuilt the engine with 1mm+ oversize piston, same camshaft as before. In this situation , Do I need to retune?
For now, the engine with no issue and I dun have to air/fuel ratio to monitor. So, I dont is that map fit for my rebuilt engine.
Or any way to know the map is good or bad for my engine.
Thanks.
09-10-2019, 10:31 PM
#4
Honda-Tech Member
Re: Do I need a tune for a rebuilt engine?
If the tune was based on a weakened/compromised engine, a healthy engine will make more power... and this means that your current tune will be lean. Lean is dangerous. Get a re-tune.
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