is there any benefit to grinding/porting the head on the bp 1.8, i can use a dremel and do whatever, i'm just wondering where to grind that works the best and what kind of difference it would make.
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I would leave this type of **** to a professionalRyan The middle child is always ignored
BP powered 97LX Touring Edition
Vibrant strut tower brace, KVR front brake pads, Tungsram Megalicht H4 headlight bulbs, Phillips Halogen H3 foglight bulbs.... 91 GT rims w/ 195 60 14 Yokohomo Mirada GTX sport -
it's actually not that complicated. if anything the only hard part is figuring out the best places to grind/polish, i was just wondering if you guys know.Originally posted by midnightblue97Comment
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thank you leet head master. i will give up this easy project now that you've told me i might do it wrong.Originally posted by TheMANyeah.... let's break out the dremel and "port and polish" the head under the tree in the backyard then get inconsistent flow rates across the head
despite your skepticism i think i can handle this michaelangelo-esque space shuttle tolerance perfect grinding job.
can we keep the replies to people that have something to offer please?Comment
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Just gasket match the ports..........Or smooth down the walls deep as you can,dont get to greedy........Leave the valve job and shaving to a machine shop.1996 Escort GT
2005 stg3 srt4 450hp 508tq 29psi
1986 Mustang cpe 408 strokerComment
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read a book on flow characteristics, you'll change you mind on doing it yourself, especially with a dremel"Discontent is the first necessity of progress."
-Thomas A. Edison
"There is a fine line between ballin' on a budget, and dreamin' on an empty wallet."
*Junked* 92 mx3, BP swap- milage whore, beaten up and down the east coast
*Junked* KLZE powered 323 on Megasquirt 1
172.60HP & 156.93 TQ with only headers and short ram intake. back under the knife for a BPT swap.
New Daily stock 1.6L 1999 Mazda Protege LXComment
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Originally posted by 1967cutlassthank you leet head master. i will give up this easy project now that you've told me i might do it wrong. despite your skepticism i think i can handle this michaelangelo-esque space shuttle tolerance perfect grinding job.
can we keep the replies to people that have something to offer please?
~Mar.
Now say it with me... B-R-A-K-E.
Good job!Comment
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thats what i was thinking, i'm definately not touching the valves. do you know if there are any areas that are commonly taken care of that are restrictive? on some of the older cars that i've ground heads on they have some pretty ridiculous engineering. i guess once i get the car i'll just look for myself.Originally posted by srad2dragComment
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When I rebuild my BP at the end of this summer I'm going to take about .040 off of the head and port both the intake and exhaust ports! I wouldn't worry about taking much out of the runners or making the port much bigger, just mainly do bowl work around the valve stem and smooth everything over. Also focus on where the intake port splits and goes to both valves. Take out all the casting marks and try to be consistant. People that say not to touch your head just don't have any balls. CNC machining for porting heads hasn't been around for very long and heads have been ported way before any of us were ever born. Don't get greedy with removing material or you will fck them up. Keep it simple and just smooth everything over! You will notice a HUGE difference in the top end of the motor by porting the intake. You will loose some bottom end torque by porting the exhaust side, but it's worth it when you wrap the motor up to about 5k. Milling the head down will bring up the bottom end torque that you lost by porting the exhaust side!Last edited by Geoffwhite18; 06-12-2005, 02:45 AM.Comment
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If you do get the valve job, a 15/45/75 is better than a 30/45/60 angle on the BP.Comment
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