home intake porting

06-15-2001, 12:43 PM

Putting my motor together this weekend... just pulled the new intake out of the box and there is quite a bit of casting irregularity in the ports..

I was thinking of taking a dremel and CAREFULLY cleaning them up..

how far into the port should I go?? any other suggestions??

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Black, 84 GT, T5, ground effects, shorty headers, dual exh., rear spoiler from a 87.. In the works; 4:10's, 89 ported heads, edelbrock Performer, matched cam and holley carb (?? size)

Rick 91GT · 06-15-2001, 03:43 PM

Yeah, I would clean up that casting flash also. Go about 1"-1.5" in the port and you want to clean it up but you still need a rough surface so the fuel atomizes and mixes with the air, I used 100 and 180 grit rolls. I used the 360's to polish the exhaust to a mirror finish as well which will help flow.

Hope that helps

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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP

06-15-2001, 04:13 PM

thanks rick, i forgot about the rough surface for atomization...

------------------
Black, 84 GT, T5, ground effects, shorty headers, dual exh., rear spoiler from a 87.. In the works; 4:10's, 89 ported heads, edelbrock Performer, matched cam and holley carb (?? size)

06-15-2001, 12:43 PM	#1
jerryIII Guest Posts: n/a	home intake porting Putting my motor together this weekend... just pulled the new intake out of the box and there is quite a bit of casting irregularity in the ports.. I was thinking of taking a dremel and CAREFULLY cleaning them up.. how far into the port should I go?? any other suggestions?? ------------------ Black, 84 GT, T5, ground effects, shorty headers, dual exh., rear spoiler from a 87.. In the works; 4:10's, 89 ported heads, edelbrock Performer, matched cam and holley carb (?? size)

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06-15-2001, 03:43 PM	#2
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	Yeah, I would clean up that casting flash also. Go about 1"-1.5" in the port and you want to clean it up but you still need a rough surface so the fuel atomizes and mixes with the air, I used 100 and 180 grit rolls. I used the 360's to polish the exhaust to a mirror finish as well which will help flow. Hope that helps ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon! FIRST TIME OUT 12.16@111 WHEELS-UP

06-15-2001, 04:13 PM	#3
jerryIII Guest Posts: n/a	thanks rick, i forgot about the rough surface for atomization... ------------------ Black, 84 GT, T5, ground effects, shorty headers, dual exh., rear spoiler from a 87.. In the works; 4:10's, 89 ported heads, edelbrock Performer, matched cam and holley carb (?? size)