850 N/A tuning with the VVIS experience ?

patrycyo · Post by **patrycyo** » 23 May 2010, 02:13

HI, i read this on the forum...

www.matthewsvolvosite.com/forums/viewtopic.php?f=5&t=24681

Like this it seems to be something interesting for the N/A engine 2.5....

But Is there any feedback from people who have tested this ? Does the engine still ok with the time ? not suffering ?

It keep it Same safe and reliable way ?

Thanks.

onscar · Post by **onscar** » 23 May 2010, 19:49

My 850 didnt come with the VVIS but i installed it on my mine with lil mods....check it out here.http://volvospeed.com/vs_forum/index.ph ... 0-na-peps/

patrycyo · Post by **patrycyo** » 24 May 2010, 05:57

regarding the guy who have create the VVIS thread and selling the electronic stuff ??? no more news ?!

how it s working this solution !? the 9 hp gain is really there without trouble in long term !?

Post by **charlyW** » 24 May 2010, 06:03

Depending on your some 850's didnt come with VVT those that did it was only on the inlet cam. Easy way to see if yours did spray the three cam bolts so you know alignment, remove the belt loosen the cam bolts to see if you can rotate the cam sprocket by 3-5 degrees or 1-2 teeth if you can you have VVT I know my 97 850 doesnt

patrycyo · Post by **patrycyo** » 24 May 2010, 08:23

ok.

i have check in the engine and i have the exact parts mention in the PDF picture, the small thing on the near of the air box hold by 2 screw with the volvo oem electric plug in there with a small hose on the back... it seems to be the VVIS.

I m in contact with razorx since today, he contact me.