2.5L V6 individual runner vacuum reservoir volume.

IMACHU2 · Post by **IMACHU2** » Tue Nov 04, 2014 5:38 pm

I have been snooping through the forum and most of the projects appear to be 4cyl engines. Would the vacuum reservoir need to be any larger for a 2.5L V6 with individual runners? Could I run a hose to the power brake booster to the reservoir as well or would it disturb the signal to the map sensor? Thanks in advance

Post by **brentp** » Mon Nov 17, 2014 5:26 pm

If you have the carbs hooked up to the vacuum booster then the volume there will likely smooth out the signal. Best way is to observe the signal directly and note any fluctuations at idle.

Also: those are really cool carburetors! where did they come from?

IMACHU2 · Post by **IMACHU2** » Tue Nov 18, 2014 1:37 am

Thanks brentp. They are 2001 Yamaha YZF600R motorcycle carbs

The picture is not mine, I planned on replicating this project. I am going to chicken out and put a SR20DET in my Mustang instead. I just put one in my Locost 7 and the simplicity and performance are both great. I must put bike carbs on something someday though LOL.

toenee · Post by **toenee** » Mon Dec 08, 2014 7:30 pm

Wouldn't expect those to work anyway, look at the float bowl. This needs to be level.

hendrik6073 · Post by **hendrik6073** » Sun Jun 12, 2016 2:23 pm

i also added a vacuum bowl, did not have a AFR gauge before added that also. Now i got a very lean mixture (afr 19) at little throttle. Maybe that behavior was always there and i wasn't aware of it. I thought could this be happening because of the vacuum lines connecting the intakes? one intake might get (false) air from another one ?