Does anybody know off hand what the angle is on Gen 3 3100 heads for the valves and seats.Cause i was having my valves done and thought i might have them change the angle for better flow for performance.Example from 45 degrees to 30 Degrees.
-
1995 Cutlass Supreme 3100 SFI
Cold Air K&N Filter
58mm TB
Dynomax Duel Exhaust with Performance Catalytic Converter
FFP Underdrive Crank Pulley
1/4 mile 15.65 at 90.8 mph -
Stock valve seats are already 3-angle setups. The only way to really improve that is either 5-angle or something else which I can't think of the name of right now.-Brad-
89 Mustang : Future 60V6 Power
Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog -
So you think its good just the way it is,just have them reground.1995 Cutlass Supreme 3100 SFI
Cold Air K&N Filter
58mm TB
Dynomax Duel Exhaust with Performance Catalytic Converter
FFP Underdrive Crank Pulley
1/4 mile 15.65 at 90.8 mphComment
-
Yeah. 5-angle really isn't worth the extra cost unless you get into looking for every last bit of HP. And there are people who also say that a 5-angle can be bad for these heads... can't remember the reasoning behind it though.-Brad-
89 Mustang : Future 60V6 Power
Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blogComment
-
the reasoning ive always heard from guys about 5 angles is that with the 5angle you have more smaller areas of each cut. which over time due to the smaller seat angle/area's the seat wears out quicker than a normal 3 angle would, thus needing to do another valve job again to fix the worn seat angles. ect...
i hope that came out right....
i mean this instead of a seat with this much area between the cuts:
\
_\ (suposed to be one smooth cut...)
its this short between each cut:
\
thus less material the valve comes in contact, and over time it wears quicker..
now if thats true?? i cant say for sure.Colin
92 Sunbird GT, 3200 Hybrid 13.99@ 95.22 (2004)
90 Eagle Talon TSi AWD 10.54 @ 129mph.Comment
Comment