Knock on the VQ37VHR - gear heads step inside

BerkTech · 01-20-2009, 03:35 AM

The OEM's are sqeezing more and more power & thermal efficiency out of these motors. From the factory many of these cars are actually tuned quite close to the edge considering how detuned OE's used to deliver their cars.

The two dyno's I'm talking about are the only two dyno's I've seen of the 370z. One from Z1, which is a 100% bone stock car, it's showing knock response right around 4250rpm. Second, is GTM's dyno of their test pipes. Their test pipes showed good gains at ~12rwhp, but with looks like knock response @ 5500rpm.

Don't know where the talk of forced induction came in though.... these cars are both NA.

WShade · 01-20-2009, 08:19 AM

Picture for reference on the Z1 sheet.

01-20-2009, 08:19 AM	#2 (permalink)
WShade Track Member Join Date: Jan 2009 Location: San Antonio, TX Posts: 765 Drives: 09 370Z T/S/N Rep Power: 188	Picture for reference on the Z1 sheet. __________________ Q50S Q60 RS400

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01-20-2009, 03:35 AM	#1 (permalink)
BerkTech The370Z.com Sponsor Join Date: Jan 2009 Location: Irvine CA Posts: 279 Drives: Lots.... Rep Power: 273	The OEM's are sqeezing more and more power & thermal efficiency out of these motors. From the factory many of these cars are actually tuned quite close to the edge considering how detuned OE's used to deliver their cars. The two dyno's I'm talking about are the only two dyno's I've seen of the 370z. One from Z1, which is a 100% bone stock car, it's showing knock response right around 4250rpm. Second, is GTM's dyno of their test pipes. Their test pipes showed good gains at ~12rwhp, but with looks like knock response @ 5500rpm. Don't know where the talk of forced induction came in though.... these cars are both NA.