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Fitting HFC without remap

Looking at getting HFC fitted next week on my 2018 370 Nismo. As the car is onky 4 weeks old don’t really want to remap the car with an upshift

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Old 02-09-2018, 09:57 AM   #1 (permalink)
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Default Fitting HFC without remap

Looking at getting HFC fitted next week on my 2018 370 Nismo.
As the car is onky 4 weeks old don’t really want to remap the car with an upshift or ECUtek map.
However also a bit concerned that the car may be running lean after fitting the HFC which could cause temp to rise and potentially burn out the valves.

Going to get a dyno run done on the std car then another dyno run after fitting the HFCs.

Anyone with experience of having fitted HFC with and without a remap?
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Old 02-09-2018, 10:04 AM   #2 (permalink)
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If all you're doing is HFCs you will be fine.
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Old 02-09-2018, 11:13 AM   #3 (permalink)
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For DDs, the rule-of-thumb is: Intake mods only don't require a tune. Exhaust mods only don't require a tune. Intake + exhaust mods need a tune.

If you're worried about running lean, get an ODB/CAN tool that will allow you to monitor O2s, AFRs, etc, in real-time.
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Old 02-09-2018, 11:56 AM   #4 (permalink)
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Thanks guys

Any idea what gains should be achieved by fitting 200cell cats?
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Old 02-09-2018, 12:18 PM   #5 (permalink)
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Quote:
Originally Posted by Bikeracer1098 View Post
... Any idea what gains should be achieved by fitting 200cell cats?
https://www.google.com/search?q=site...m+200+cell+cat
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Old 02-12-2018, 11:21 AM   #6 (permalink)
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Thanks
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Old 02-14-2018, 06:14 PM   #7 (permalink)
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Had the 200cell HFC fitted today. Before and after dyno charts





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Old 02-20-2018, 07:24 AM   #8 (permalink)
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Drove 40miles home after fitting these HFC without a problem, however whilst driving 12miles to Nissan HPC for a warranty claim this morning the engine management light came on.

Managed to clear the ECU and engine management light by using the throttle/gas peddle technique. Hopefully that will prevent the engine management light from comming on again,

This morning the tuner informed me that I would have to ha e the ECU reflashed to prevent the engine warning light from re-appearing.
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