Help! Am I gonna be too lean?

Dwilly · 11-30-2010, 02:17 AM

Hi all, I've tried searching and couldn't find a blunt exact answer to this question. I have Berk hfc and cbe on their way and am wandering if I will NEED to tune after install. These will be the only performance mods I put on other than maybe a drop in filter. I am not so concerned with the couple of horsepower I might be missing out on if I don't tune. I would really rather not tamper with the ecu. However I will if I HAVE to. The only 2 things I'm wandering are will the car be too lean with these mods and no tune. And if I install with no tune am I even goin to notice a performance increase with said mods. I know on a dyno they improve numbers even without a tune but numbers can be deceiving. Will I FEEL a difference with them, I guess would be a better way to ask.

thanks in advance for your help and I'm sorry if this has been covered before.

Dwilly · 11-30-2010, 05:27 PM

I actually talked to Bryan at Berk today and got the info I was looking for.

wilsonp · 11-30-2010, 05:28 PM

So, share?

Dwilly · 11-30-2010, 05:41 PM

Bryan said that our cars come with factory wideband O2 sensors and the computer while not as versatile as an aftermarket tune is capable of compensating with more fuel. Enough to support just these mods. He did concede that I would pick up another 5whp or so with a tune but that I certainly did not require one to be safe or to feel 80% of the gains these mods could supply

11-30-2010, 02:17 AM	#1 (permalink)
Dwilly Base Member Join Date: Nov 2010 Location: Clearwater, Fl Posts: 5 Drives: 40th Anniversary Z Rep Power: 15	Help! Am I gonna be too lean? Hi all, I've tried searching and couldn't find a blunt exact answer to this question. I have Berk hfc and cbe on their way and am wandering if I will NEED to tune after install. These will be the only performance mods I put on other than maybe a drop in filter. I am not so concerned with the couple of horsepower I might be missing out on if I don't tune. I would really rather not tamper with the ecu. However I will if I HAVE to. The only 2 things I'm wandering are will the car be too lean with these mods and no tune. And if I install with no tune am I even goin to notice a performance increase with said mods. I know on a dyno they improve numbers even without a tune but numbers can be deceiving. Will I FEEL a difference with them, I guess would be a better way to ask. thanks in advance for your help and I'm sorry if this has been covered before.

11-30-2010, 05:28 PM	#3 (permalink)
wilsonp A True Z Fanatic Join Date: Jul 2010 Location: Virginia Posts: 1,134 Drives: 2009 Touring Sp Nav Rep Power: 17	So, share? __________________ 2014 Cayman S PDK Sport Chrono White/Black Was 2009 370Z Touring Sport+Nav 7AT Metallic Black/Persimmon Was 1991 NSX Auto Black/Black

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11-30-2010, 05:27 PM	#2 (permalink)
Dwilly Base Member Join Date: Nov 2010 Location: Clearwater, Fl Posts: 5 Drives: 40th Anniversary Z Rep Power: 15	I actually talked to Bryan at Berk today and got the info I was looking for.

11-30-2010, 05:41 PM	#4 (permalink)
Dwilly Base Member Join Date: Nov 2010 Location: Clearwater, Fl Posts: 5 Drives: 40th Anniversary Z Rep Power: 15	Bryan said that our cars come with factory wideband O2 sensors and the computer while not as versatile as an aftermarket tune is capable of compensating with more fuel. Enough to support just these mods. He did concede that I would pick up another 5whp or so with a tune but that I certainly did not require one to be safe or to feel 80% of the gains these mods could supply