A few 3.0 v6 tech questions
Posted: Wed Apr 25, 2007 8:29 am
Hi, been lurking on this ste for about 8 months now and have learned alot. there must be something wrong with me because i just purchased my second alfa, an 81 GTV6. the car is in good condition (i.e. very little rust) but not so nice that it needs to be kept in perfect original condition. so on the schedule is a 3.0l transplant from a donor 164S. i tried getting some of this info on the alfabb site but all they seem concerned about are 4 bangers and i got no answers. so i'm hoping that i can get some here. anyway heres a copy and paste of my original thread from alfabb. oh and the name of the software is called "pipemax".
my buddy and i are playing with some software that helps with designing headers and intakes for engines. you plug in some numbers about your engine then it spits out all kinds of data that can help with header and intake tract lengths and sizing and potential power output. i'm hoping that at least some people here will know the numbers i'm looking for. i've been using the service manual and found most but here's what i need still for a stock 164 S engine.
1. intake and exhaust cam duration @ .050 in. of lift.
2.cam lobe center degrees for both intake and exhaust
3.rocker arm ratio for exhaust so we can figure the actual exhaust valve lift
4.intake port centerline length
5.volumetric efficiency of the head (optional but the more data the better)
i've also been on pins and needles about jim k's new v6 book.
thanks in advance.
Ciao
my buddy and i are playing with some software that helps with designing headers and intakes for engines. you plug in some numbers about your engine then it spits out all kinds of data that can help with header and intake tract lengths and sizing and potential power output. i'm hoping that at least some people here will know the numbers i'm looking for. i've been using the service manual and found most but here's what i need still for a stock 164 S engine.
1. intake and exhaust cam duration @ .050 in. of lift.
2.cam lobe center degrees for both intake and exhaust
3.rocker arm ratio for exhaust so we can figure the actual exhaust valve lift
4.intake port centerline length
5.volumetric efficiency of the head (optional but the more data the better)
i've also been on pins and needles about jim k's new v6 book.
thanks in advance.
Ciao