Fireindc's attempt to build a decent miata. (the search for more torque).
#523
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After looking at the intake manifold again today, i'm almost 100% sure that is where the oil was pouring in through. My worst automotive fail to date, I think.
The port on the IM that I had the valve cover port hooked up to.
The inside of the IM, oil pooled under where that port is.
Heads both look like this:
Headgaskets looked fine:
Cylinders:
The carbon on the pistons seems to flake off in big chunks, I'm guessing that is new from the suck-by (reverse of blow-by).
Thinking I'll clean the tops of the pistons, clean out the intake manifold, get some new gaskets and go back together. Learn something new everyday.
The port on the IM that I had the valve cover port hooked up to.
The inside of the IM, oil pooled under where that port is.
Heads both look like this:
Headgaskets looked fine:
Cylinders:
The carbon on the pistons seems to flake off in big chunks, I'm guessing that is new from the suck-by (reverse of blow-by).
Thinking I'll clean the tops of the pistons, clean out the intake manifold, get some new gaskets and go back together. Learn something new everyday.
#525
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D.I.Y. brz/frs! I came across this a few weeks ago:
I think i'm going to wire brush the pistons, clean the mating surfaces, and slap it back together with some felpro gaskets this weekend.
I've read tons of people liking the felpro stuff, and some people who only swear by OEM. I know the felpro is the "revised" style gasket, so i'm not too concerned.
Any tips on cleaning the head/block? I'm thinking razor blades very carefully, then maybe scotch bright pads and degreaser.
I think i'm going to wire brush the pistons, clean the mating surfaces, and slap it back together with some felpro gaskets this weekend.
I've read tons of people liking the felpro stuff, and some people who only swear by OEM. I know the felpro is the "revised" style gasket, so i'm not too concerned.
Any tips on cleaning the head/block? I'm thinking razor blades very carefully, then maybe scotch bright pads and degreaser.
#526
D.I.Y. brz/frs! I came across this a few weeks ago:
I think i'm going to wire brush the pistons, clean the mating surfaces, and slap it back together with some felpro gaskets this weekend.
I've read tons of people liking the felpro stuff, and some people who only swear by OEM. I know the felpro is the "revised" style gasket, so i'm not too concerned.
Any tips on cleaning the head/block? I'm thinking razor blades very carefully, then maybe scotch bright pads and degreaser.
I think i'm going to wire brush the pistons, clean the mating surfaces, and slap it back together with some felpro gaskets this weekend.
I've read tons of people liking the felpro stuff, and some people who only swear by OEM. I know the felpro is the "revised" style gasket, so i'm not too concerned.
Any tips on cleaning the head/block? I'm thinking razor blades very carefully, then maybe scotch bright pads and degreaser.
#532
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Stay healthy! I want constant updates in your thread
#533
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^ lol @24 hour sickness, I felt better for one day and got a little done on the motor.. then was sick for over a week straight. It was seriously one of the most horrible experiences. Finally starting to feel okay now but I'm not pushing it.
Made 1 side of the motor look like this:
Soon enough I'll get back up to the shop and knock this scoob out, i'd like to work on my miata soon. Starting to get the itch.
Made 1 side of the motor look like this:
Soon enough I'll get back up to the shop and knock this scoob out, i'd like to work on my miata soon. Starting to get the itch.
#537
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Thanks guys. Just thinking about boost and looking at these forged rods and the gt2860 sitting on my desk is getting me excited for spring. Tenative plan now is to knock out this scoob, which can hopefully become the DD (yay for mountain biking vehicles with roof racks), then I can get busy on my BP. Excited about it, i'm hankering for some boost. This time of the big boy variety.
#538
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TURBO MIATA related question:
I've noticed my IAT corrections are off, i know this is the issue. The car runs great at 70+ deg IAT temps, when i drive the car with 40* IAT it's lean in cruise, going into boost it still hits the targeted low 11 AF/R - but cruise gets so lean it stumbles, and part throttle is off too.
Anyways, what is the proper way to go about tuning this? Do i need to ensure my base VE map is tuned with these corrections off? IIRC the corrections come on at 80 deg or colder. So, do I tune my base VE table when the IATs are >80, then adjust the corrections so everything is right when it's colder than that?
I've noticed my IAT corrections are off, i know this is the issue. The car runs great at 70+ deg IAT temps, when i drive the car with 40* IAT it's lean in cruise, going into boost it still hits the targeted low 11 AF/R - but cruise gets so lean it stumbles, and part throttle is off too.
Anyways, what is the proper way to go about tuning this? Do i need to ensure my base VE map is tuned with these corrections off? IIRC the corrections come on at 80 deg or colder. So, do I tune my base VE table when the IATs are >80, then adjust the corrections so everything is right when it's colder than that?
#540
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I think I'll tune it with IAT's in the 80's, because 90% of the time (read: spring/summer) it will be in that area. Then I can adjust corrections accordingly.