S2 users, how much vacuum (Hz) are you guys running at idle?

 

10

 

My gauge is usually hovering at 10-11 at idle.

Sorry not sure what the conversion for Hz is

 

Wow 10hz? Didn't think the s2s would read that low.

 

mine reads around 10-12 vaccum on my boost gauge and on my evoscan it reads 43.75 - 50hz idle was at 1030-1090 rpm

 

Awesome thank you!

 

Any fuel trim problems at idle ?

 

Oh no, not at all. I'm still on stock cams and was wondering for knowledge sake as well as the fact Ill need to get a different Tial BOV spring when the switch happens. I wasn't expecting such a dramatic drop from -17/-18 right now at stock, to -10/-11 on S2's. S3's or a full 280 duration higher lift cam like HKS's maybe.

I woulda bought the wrong spring for sure.

 

Yea, i think the softest tial spring goes with the S2/S3 cams, as well as my buschur's.

 

i have a crap mechanical boost gauge so its not going to be the most accurate, so take this with a grain of salt. Evo 8 stock turbo stock cams, idle around 20. sotck 8 turbo, S2 cams w/ full valvetrain, right around 9-10 depending on how i adjust the biss. usually right around 10. big difference, i was surprised big time too. idle is a little hard to dial in and diff when hard braking to a stop.

but the cams pull like a MF!!! they pull way harder up top than the lil 8 turbo can support. love these cams, def get them.

not going to compare dynos or anything like that, and this isnt a straight up comparison (bc thats not how i spend my money). but with the addition of the cams, IC piping (stock FMIC), and an intake, i gained approx 47whp.

yea i know, other mods, more boost, diff temps blah blah blah. just giving you an idea with stock 8 turbo. gl brotha

 

Thank you very much. Yeah, I had my mind set on these cams. They definitely give quite a bit of HP on VIII 's and a lil on IX's and make a good difference uptop without sacrificing bottom end or mid range power.

 

to be honest man i think u meant in/HG inches of mercury aka vacuum haha, me personally on mine during cold start warm up wont even register my boost gauge will just shake somewhat haha then after like 5-10 seconds, it will rest about 10-11 like others.

 

mine is around -13 at idle