T O P I C R E V I E W
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coupe5oh
Member # 10411
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posted
im going to port my gt40s but i have a set of e7s that im going to pratice on first..any tips/tricks?also what is a good p&p kit to get? thx in advance [ June 16, 2011, 02:46 AM: Message edited by: coupe5oh ]
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50DADDY
Member # 3076
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posted
Just remove the casting flash(smooth out the inside of the runners).This is the safest way to get decent results if your a novice porter. You should be able to find a kit with a mandrel shaft and sandpaper rolls at a machine shop or even an auto parts store.Theyre most commonly made by a company called Standard Abrasives.If want to get more agressive you can use stones first then smooth it out with sandpaper rolls after.
[ June 16, 2011, 03:19 AM: Message edited by: 50DADDY ]
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coupe5oh
Member # 10411
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posted
i found this...worth it? http://www.summitracing.com/parts/TFS-90001/
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50DADDY
Member # 3076
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posted
No stones in there but that'll do it.
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coupe5oh
Member # 10411
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posted
quote: Originally posted by 50DADDY: No stones in there but that'll do it.
cool...now for the tool...air powerd?battery?corded? brands?
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x42bnx
Member # 9529
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posted
Go to home depot, they sell the sets with rolls and with grinding stones. Then a normal dremel with high RPM will work, just buy from walmart it's like $70 then return it.
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50DADDY
Member # 3076
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posted
quote: Originally posted by coupe5oh: quote: Originally posted by 50DADDY: No stones in there but that'll do it.
cool...now for the tool...air powerd?battery?corded? brands?
Ive actually used a regular old drill before,slow but it worked.Ruined my drill too,lol,but it'd be best to have a die grinder(air or elecric) and if you cant do that a Dremel.
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2stangs69-91
Member # 1951
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posted
most of your hp gains will be in the short turn and blending in the bowl and guide areas. Good luck
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Duncan Motors
Member # 7045
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posted
i couldn't even imagine the time it would take to use the tools u guys mentioned lol.but it will all work. air is cool if u dont mind stoppin all the time for the air compressor to work, electric is good, but not with a dremel but will take a long time, a drill is way to big and bulky and slow, real slow. but it will keep u ocupied for a good long while! i salute u guys all for tryin and makin it happen!
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clone nprogrss
Member # 10342
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posted
make sure u have safety glasses on at ALL TIMES! dnt b like me n sydewayzlx50 n get metal shavings in ur eye!! i had a total of 8 pieces of metal removed from my eyes!! not fun!
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sinisterblk
Member # 8425
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posted
The electric makita 1/4 grinder is a good unit. If you have a very healthy compressor plenty of cheap good air ones out there. Flexible shafts make them easier to maneuver
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79 cobra
Member # 10137
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posted
quote: Originally posted by clone nprogrss: make sure u have safety glasses on at ALL TIMES! dnt b like me n sydewayzlx50 n get metal shavings in ur eye!! i had a total of 8 pieces of metal removed from my eyes!! not fun!
SAFETY FIRST
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BlownSnake95
Member # 10578
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posted
i suggest taking it to some one that knows what they are doing. to try this with no practice or knowledge is a good way to screw up your heads and lose a lot of power with out knowing it until its to late. but good luck
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Secnd2nun64
Member # 1431
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posted
I'd use a corded drill and a sanding roll. That way with the low speed you can take your time and see your progress. Scribe your ports using your gaskets as a reference so you know where to stop and to keep the ports the correct shape. People get into trouble when they rush and then realize they took too much off or loose control of the tool and hit a valve seat. I'm no expert by any means but I've done two sets of heads just port matching and smooting/opening up the exhaust ports never messing with the fuel bowl or combustion chamber..When I did my 289 heads I picked up a tenth at the drag strip just doing the exhaust ports. Not too bad for a 30 year old drill and $5 in sanding rolls. Yea you could have a pro do it if your trying to squeeze every last horsepower but where is the fun in that? I say definitely do it yourself and be proud of YOUR accomplishments.
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phil a
Member # 6951
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posted
quote: Originally posted by x42bnx: just buy from walmart it's like $70 then return it.
Classy
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SLOWSN95
Member # 8269
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posted
I've got the best trick and tip.. take the heads to a professional
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sinisterblk
Member # 8425
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posted
quote: Originally posted by SLOWSN95: I've got the best trick and tip.. take the heads to a professional
Bad advice, you can do this yourself. Do a little research it's not string theory. That's what being a car guy is about too many people take it to a "professional" who at one point was just a hobbyist like us.
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cali95gt
Member # 8940
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posted
Best advice is to sell them and apply that $100 in supplies you were going to use towards porting, add another $100 or so and get some aluminum heads that will outflow and be lighter than your "Home ported" GT40 Irons"
No other way to put it bro, and this is coming from a super cheap guy
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2TONE
Member # 4216
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posted
gt40s FTW
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SLOWSN95
Member # 8269
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posted
quote: Originally posted by sinisterblk: quote: Originally posted by SLOWSN95: I've got the best trick and tip.. take the heads to a professional
Bad advice, you can do this yourself. Do a little research it's not string theory. That's what being a car guy is about too many people take it to a "professional" who at one point was just a hobbyist like us.
I know that.. I'm just givin him a hard time cuz I know him
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