VP Q16 race gas

cdh124 · 04-06-2014, 08:19 AM

I am wondering about switching from Sunoco Maximil to VP Q16. What is the jet size increase when doing this? Is there a performance increase?

Doug Humes

jmarkaudio · 04-06-2014, 12:56 PM

What carb?

C and W Racing · 04-06-2014, 02:46 PM

You may have to do some changes to the metering blocks as well. On my combination I picked up 25 hp
Chuck

Adger Smith · 04-06-2014, 05:33 PM

Depending on jet area 2 to 4 jet sizes. Going from Maximal I would say you need to do the higher # 7 back down. I would start with 2 out of the timing and work it up. Depending on the carb the extra required Q-16 might not like the passage sizes in the metering blocks and boosters. That is "May not"!!

04-06-2014, 08:19 AM	#1
cdh124 Junior Member Join Date: Nov 2010 Location: Battle Creek, Michigan Posts: 59 Likes: 214 Liked 0 Times in 0 Posts	VP Q16 race gas I am wondering about switching from Sunoco Maximil to VP Q16. What is the jet size increase when doing this? Is there a performance increase? Doug Humes

04-06-2014, 12:56 PM	#2
jmarkaudio Junior Member Join Date: Apr 2008 Posts: 83 Likes: 0 Liked 0 Times in 0 Posts	Re: VP Q16 race gas What carb?

04-06-2014, 02:46 PM	#3
C and W Racing Senior Member Join Date: Jul 2007 Posts: 554 Likes: 5 Liked 10 Times in 1 Post	Re: VP Q16 race gas You may have to do some changes to the metering blocks as well. On my combination I picked up 25 hp Chuck

04-06-2014, 05:33 PM	#4
Adger Smith VIP Member Join Date: Dec 2001 Location: Texarkana Ark/TX Posts: 2,348 Likes: 435 Liked 677 Times in 261 Posts	Re: VP Q16 race gas Depending on jet area 2 to 4 jet sizes. Going from Maximal I would say you need to do the higher # 7 back down. I would start with 2 out of the timing and work it up. Depending on the carb the extra required Q-16 might not like the passage sizes in the metering blocks and boosters. That is "May not"!! __________________ Adger Smith (Former SS)