gasporting OEM pistons for a street motor.
10-31-2006, 04:43 AM
#76
Re: (Dyno Dave)
Nope, I didn't get the GII. I have been looking into some non-traditional machines to do something a lil different. The BB would be nice for the "micro" machine shop though.
10-31-2006, 07:50 AM
#77
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yeah but a bit pricey for my workload right now.
you can do more with a bridgeport and tooling than you can with a dedicated seat and guide.
you can do more with a bridgeport and tooling than you can with a dedicated seat and guide.
11-01-2006, 05:07 AM
#79
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good news travels fast huh?
i made a centerless valve spinner that works on my surface grinder. its not the fastest or most consistent but some came out as good as the 45's that were ground by an $8500 centerless rottler refacer, so im pretty happy.
going to try making another one with a different design i thought up.
i made a centerless valve spinner that works on my surface grinder. its not the fastest or most consistent but some came out as good as the 45's that were ground by an $8500 centerless rottler refacer, so im pretty happy.
going to try making another one with a different design i thought up.
11-02-2006, 08:33 AM
#80
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Re: (mike_belben@yahoo.com)
Tech Talk Article 22
"The Importance of Gas Ports"
by David Reher
Check it out. I think you know where. And damn you milled the **** outta those heads, it's beautiful.
"The Importance of Gas Ports"
by David Reher
Check it out. I think you know where. And damn you milled the **** outta those heads, it's beautiful.
11-02-2006, 09:22 AM
#82
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im not going to spill the beans and ruin the suspense.
ill leave some hints though:
vertical milling machine
dummy cylinder
dividing head or rotary table
small grinding stone
1" arbor
ill leave some hints though:
vertical milling machine
dummy cylinder
dividing head or rotary table
small grinding stone
1" arbor
11-02-2006, 03:46 PM
#84
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Re: (mike_belben@yahoo.com)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike_belben@yahoo.com »</TD></TR><TR><TD CLASS="quote">good news travels fast huh?
i made a centerless valve spinner that works on my surface grinder. its not the fastest or most consistent but some came out as good as the 45's that were ground by an $8500 centerless rottler refacer, so im pretty happy.
going to try making another one with a different design i thought up. </TD></TR></TABLE>
Hell I've heard of po'dunk machine shops around my area that still use a cordless drill and a grinder to do the valve facing let alone back cutting lol
As I'm sure you noticed most valves aren't even perfectly round past the face so it probably shouldn't matter too much if you aren't dead on down to .000000001" like you are the rest of the time.
i made a centerless valve spinner that works on my surface grinder. its not the fastest or most consistent but some came out as good as the 45's that were ground by an $8500 centerless rottler refacer, so im pretty happy.
going to try making another one with a different design i thought up. </TD></TR></TABLE>
Hell I've heard of po'dunk machine shops around my area that still use a cordless drill and a grinder to do the valve facing let alone back cutting lol
As I'm sure you noticed most valves aren't even perfectly round past the face so it probably shouldn't matter too much if you aren't dead on down to .000000001" like you are the rest of the time.
11-27-2006, 04:45 PM
#86
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yeah, it gave me a nightmare of a time last week. an oversight on my part has the edge of the pistons tapping the non-thrust axis of the head upon startup. other problems arise in fixing it but its all straightened out now.
not being much of a tuner, i did a very mild timing map and rich a/f tune for it to get the owner around while he recoups from the cost and effort for a while. i still have to fab a header and exhaust for it, while he comes up with a better manifold and TB, all of those items were stock b16 stuff.
i did a lot of experimental piston dome shape stuff to try to accelerate burn rate. this motor starts amazingly fast, like first spark and its running. it also accelerates on very very slight throttle changes. like from 8% tps to 11% and the car is pulling forward. those were the only noticeable attributes so far. after the other parts are on ill do more street tuning, play with camshaft position, tune some more, then go dyno and see what its like. as i said, im not much of a tuner presently so...
not being much of a tuner, i did a very mild timing map and rich a/f tune for it to get the owner around while he recoups from the cost and effort for a while. i still have to fab a header and exhaust for it, while he comes up with a better manifold and TB, all of those items were stock b16 stuff.
i did a lot of experimental piston dome shape stuff to try to accelerate burn rate. this motor starts amazingly fast, like first spark and its running. it also accelerates on very very slight throttle changes. like from 8% tps to 11% and the car is pulling forward. those were the only noticeable attributes so far. after the other parts are on ill do more street tuning, play with camshaft position, tune some more, then go dyno and see what its like. as i said, im not much of a tuner presently so...
11-27-2006, 04:50 PM
#87
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Re: (mike_belben@yahoo.com)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike_belben@yahoo.com »</TD></TR><TR><TD CLASS="quote">I did a lot of experimental piston dome shape stuff to try to accelerate burn rate. this motor starts amazingly fast, like first spark and its running. it also accelerates on very very slight throttle changes. like from 8% tps to 11% and the car is pulling forward. those were the only noticeable attributes so far.</TD></TR></TABLE>
Sounds promising so far
Sounds promising so far
11-30-2006, 11:00 PM
#88
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I can't believe I didn't know about this thread, LOL. Computer came in today so i'm back online but the wallets hurting more.
Nevertheless, i'm determined to get things setup for tuning. Still taking it easy with the P30 but the motors running beautiful Mike.
Looking to do a compression test now that its broken in, sometime this weekend. I can't say enough about this guy. Hands down, "The Man" & all around great guy.
Just becareful when going through a taco bell drive thru with him or you might get some, super-tite JDM secret sauce on your "cheese quesadilla!!!"
Nevertheless, i'm determined to get things setup for tuning. Still taking it easy with the P30 but the motors running beautiful Mike.
Looking to do a compression test now that its broken in, sometime this weekend. I can't say enough about this guy. Hands down, "The Man" & all around great guy.
Just becareful when going through a taco bell drive thru with him or you might get some, super-tite JDM secret sauce on your "cheese quesadilla!!!"
12-01-2006, 05:00 AM
#89
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Re: (HatchSpeeD)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mike_belben@yahoo.com »</TD></TR><TR><TD CLASS="quote">yeah, it gave me a nightmare of a time last week. an oversight on my part has the edge of the pistons tapping the non-thrust axis of the head upon startup. other problems arise in fixing it but its all straightened out now.
not being much of a tuner, i did a very mild timing map and rich a/f tune for it to get the owner around while he recoups from the cost and effort for a while. i still have to fab a header and exhaust for it, while he comes up with a better manifold and TB, all of those items were stock b16 stuff.
i did a lot of experimental piston dome shape stuff to try to accelerate burn rate. this motor starts amazingly fast, like first spark and its running. it also accelerates on very very slight throttle changes. like from 8% tps to 11% and the car is pulling forward. those were the only noticeable attributes so far. after the other parts are on ill do more street tuning, play with camshaft position, tune some more, then go dyno and see what its like. as i said, im not much of a tuner presently so...</TD></TR></TABLE>
Good to hear its up and running. Keep us updated.
not being much of a tuner, i did a very mild timing map and rich a/f tune for it to get the owner around while he recoups from the cost and effort for a while. i still have to fab a header and exhaust for it, while he comes up with a better manifold and TB, all of those items were stock b16 stuff.
i did a lot of experimental piston dome shape stuff to try to accelerate burn rate. this motor starts amazingly fast, like first spark and its running. it also accelerates on very very slight throttle changes. like from 8% tps to 11% and the car is pulling forward. those were the only noticeable attributes so far. after the other parts are on ill do more street tuning, play with camshaft position, tune some more, then go dyno and see what its like. as i said, im not much of a tuner presently so...</TD></TR></TABLE>
Good to hear its up and running.
Keep us updated.
12-01-2006, 02:38 PM
#90
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man, that fool is lucky he didnt get my supa-tite JDM torque wrench up his ***.
hey, did i remember to give you some stickers?
hey, did i remember to give you some stickers?
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