Flowing a vr6 head

[oettingerA4]

Was thinking would it be worth flowing and doing the 3 angle valve thing.... Car is turbo'd so cams not nec. Anyone know who is reliable and do it proper first time .

[maranou]

u must be fooling me,cams is the best thing a vr6 turbo ever got,the power lasts til redline,just get rev kit,as big boost on big turbo T61 up keeps the valves open,been there broken plenty motors got the 320kw and 550nm on std 2.8l sub,if u want pics and dyno graph,go check my facebook,because of the moer long and short ports a vr6 has u gone struggle to open the ports up,u can flow the head yes,it wil only help a little on turbo,best is get a 2.9 import sub and pocket piston professionaly to get 8.2cr and fit arp rod bolts,or get wiseco's thats R8000+

u wil be asking but what profile cam..........keep it small is al i wil say

[razzor]

flowing gains on turbo is not that big.
turbo cams are available but would recommend 268's to move the power band up a bit and no need to rev more than 7000 rpm.
reliability on the VR engines comes down to how good the timing chain and guides are.
Another common issue is valve seats falling out due to above as well as oil pickup sieve getting blocked from pieces of broken chain guides.
Other than the above from experience i have seen plenty engines break do to tuning, the main culprit being excessive timing.
One of the fastest VR6T cars runs early 9 secs on the quatermile and makes around 700+hp on a stock VR engine with only a set of 288 cams and ARP rod bolts fitted.
Car runs on ethanol at oe compression ratio of 10:1.

[maranou]

flowing gains on turbo is not that big.
turbo cams are available but would recommend 268's to move the power band up a bit and no need to rev more than 7000 rpm.
reliability on the VR engines comes down to how good the timing chain and guides are.
Another common issue is valve seats falling out due to above as well as oil pickup sieve getting blocked from pieces of broken chain guides.
Other than the above from experience i have seen plenty engines break do to tuning, the main culprit being excessive timing.
One of the fastest VR6T cars runs early 9 secs on the quatermile and makes around 700+hp on a stock VR engine with only a set of 288 cams and ARP rod bolts fitted.
Car runs on ethanol at oe compression ratio of 10:1.

give that man a bells

[oettingerA4]

Thanks..but anyone know in jhb or PTA who can do a proper job.... Not done nothing the vr in years so I don't really know anyone anymore, and the one person who I did moved to Canada

I want daily driver not a race car, and happy with the power, but,if i can get it to go bit better at same boost why not. The car got a slight miss at idle , but, i reckon burnt valve ? BUT still goes like the bomb

[maranou]

Supertech springs,send the cams to nellis to get cut to 264 deg R1200+- ,that is al,more power same boost

[razzor]

the 264 is a very underated cam and works great on a n/a car too.

[maranou]

jip,fitted the same 264 cams to a 2.9l import sub with big valve head and flow ,made 139kw and 250nm before and 160kw and 260nm after ..... i was like first vr6 i drive that pulls til limiter,customer was like and we uped the cr abit......