vwdriver92

Well I am doing a turbo vr6 engine.
Well got a few questions???? for anyone who knows

I did all my calcs and my motor at redline need 41.lbs/min Well I want about 20 pounds and I figure a K turbo off of 911 and 944 would match my 2.9 pretty well. They are both lower revin cars with low end torqe

Well I have driven in many turbo cars. Most of them would spool about 2500 to 3000 and most of them the first 500 rpm would built up about half of the 20 ppounds they were runing. Know when I do my calcs on my motor I figure it would spool about 2500 to 3000 depending the turbo so I calced for 3000 and 3500 and my car needs somethin like 20 to 25 cmf. Well most turbos maps I have seen at 20 pounds and 25cmf they are well over the surge limit, and I will not see full boast till like 5000. Is this right or am i missing something.

Also I and still decideing what I want to do witht the head. I still want low end but everyone say to port it out like crazy cause with a turbo it will not matter, thelow end might be a little diffent depending turbo but they said low end will still be their. I have read to just polish and port match with a valve angle. People I talk to say to do everything. ANyone have any views

I have rebuilt many engines but not any for turbos so I not as knowledgable about lil tricks to do with turbos. I also want a semi quick spool. I know that the exhast housing has alot to do with it but I also want it to breath well up high with as lil back pressure. I also know to keep pipes as short as possible,

Please help.
my e-mail is woofers98@hotmail.com if you can help

Rick - '89 930

There is a used K27 turbo for sale under the classifed list. Look for #19.