How much boost?? - Page 2

KingLT1 · 07-01-2025, 09:32 AM

Your boost numbers are lower likely because of your cam. Bigger cam will bleed off boost due to the increased overlap (point where intake and exhaust valves are both open). More overlap is good for making more high rpm power, but there is a point where it starts to work against a Blower car.

19Nasty1le · 07-01-2025, 05:09 PM

Quote:

Originally Posted by Keithj3

I agree and I understand boost. I was stating an apples to apples comparison. Reason I went the X-port after the jokerz port is because I needed new bearings. The shop I use does deal with jokerz anymore so I went with the X-port. The car went from 858rwhp to 936rwhp, and now 60-130 4.86 in June Kansas City heat. X-port made the car faster. Same tuner same dyno.

You gained 80whp between a Jokerz port and Kong?

ZLRob · 07-01-2025, 09:47 PM

Quote:

Originally Posted by Keithj3

I agree and I understand boost. I was stating an apples to apples comparison. Reason I went the X-port after the jokerz port is because I needed new bearings. The shop I use does deal with jokerz anymore so I went with the X-port. The car went from 858rwhp to 936rwhp, and now 60-130 4.86 in June Kansas City heat. X-port made the car faster. Same tuner same dyno.

Was there any change in your TQ? If you can remember, where did it peak?

Keithj3 · 07-02-2025, 12:06 AM

Quote:

Originally Posted by ZLRob

Was there any change in your TQ? If you can remember, where did it peak?

I lost a lil bit of TQ it peaked about 3-400 rpm later. A only change was the X-port jokerz port I was on E-83 and and X-port E-70. Pulleys were untouched. About same temp outside. Even with 55 degree days I couldn’t get the car in the 4s 60-130, with X-port did it in June heat. I do have the latest X-port billet insert and the cnc thing he started doing in March. And the blower is WAY louder.

Keithj3 · 07-02-2025, 01:24 AM

Quote:

Originally Posted by ZLRob

Was there any change in your TQ? If you can remember, where did it peak?

Just looked brother my mistake made peak Tq 300 rpm later but made more was 829 tq now it’s 861

ZLRob · 07-02-2025, 01:14 PM

Quote:

Originally Posted by Keithj3

Just looked brother my mistake made peak Tq 300 rpm later but made more was 829 tq now it’s 861

Very very interesting.. this is good insight especially since nothing changed except your blower outside of your build!

KingLT1 · 07-02-2025, 01:23 PM

X port shifts curve to the right, so that makes sense.

07-01-2025, 09:32 AM	#15
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,561	Your boost numbers are lower likely because of your cam. Bigger cam will bleed off boost due to the increased overlap (point where intake and exhaust valves are both open). More overlap is good for making more high rpm power, but there is a point where it starts to work against a Blower car. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

07-02-2025, 01:23 PM	#21
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,561	X port shifts curve to the right, so that makes sense. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

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