Porting a Fast 90
Thread Starter
Joined: Mar 2003
Posts: 1,223
Likes: 2
From: Hamilton Ontario
Porting a Fast 90 Now I know that porting a fast is a well guarded secret and that a simple mortal shouldn't attempt but I love a challenge. I have a lot of patience and have done alot of carving and freehand woodworking.
From articles that I have read smoothing the transitions while matching the intake to the heads is the point of this process.
So can I at least get pointed in the right direction.
Is the intake smoothed to the finish or is a filler used to get rid of the sanding wheel marks.
Which filler would you use?
Come on Tony let a couple of your secrets out.
From articles that I have read smoothing the transitions while matching the intake to the heads is the point of this process.
So can I at least get pointed in the right direction.
Is the intake smoothed to the finish or is a filler used to get rid of the sanding wheel marks.
Which filler would you use?
Come on Tony let a couple of your secrets out.
don't use filler...just sand and smooth things out, professionals also remove a lot of material from the whole runner which isn't wise without a flowbench and experience
you can however remove the large wedges in the runners and port match pretty easily...there are several threads on this type of porting and that's how I did mine...might not be as good as what a professional would do but it was free and it entertained me and might have given me a couple more HP than stock to boot
you can however remove the large wedges in the runners and port match pretty easily...there are several threads on this type of porting and that's how I did mine...might not be as good as what a professional would do but it was free and it entertained me and might have given me a couple more HP than stock to boot
here ya go.I gained 20 rwhp and have adyno graph in there.The 20 hp gain is from a stock ls6 intake to ported fast.My cam has only 570 lift by the way,so if i had a bigger cam,the gains probably would have been a few more
https://ls1tech.com/forums/generatio...90-intake.html
https://ls1tech.com/forums/generatio...90-intake.html
