Miata with SAFC and 440cc hard to start
#21
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Im already using a map sensor instead of the TPS sensor as the "fake tps signal" in the SAFC. I knew that already i just forgot to mention it.
And as you can read clearly like i said. Its really giving an IMPRESSIVE pull for the 800$ I spend... i doubt you could find a miata with a total of 800$ engine mod to pull that good as mine... not saying im the number 1, im just saying i think i did good with a budget that low. I planned at the beginning a 1000$ turbo kit just for fun.
Well anyway i'll try to figure this out tomorrow.
BTW if it could interest anybody i made a video of my miata project online if anyone curious to see how its running
Projet miata jdm turbo 1989 - YouTube
And as you can read clearly like i said. Its really giving an IMPRESSIVE pull for the 800$ I spend... i doubt you could find a miata with a total of 800$ engine mod to pull that good as mine... not saying im the number 1, im just saying i think i did good with a budget that low. I planned at the beginning a 1000$ turbo kit just for fun.
Well anyway i'll try to figure this out tomorrow.
BTW if it could interest anybody i made a video of my miata project online if anyone curious to see how its running
Projet miata jdm turbo 1989 - YouTube
Being proud of that, is like being proud of a giant smelly diarrheal dump you took in the bathroom.
#22
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And as you can read clearly like i said. Its really giving an IMPRESSIVE pull for the 800$ I spend... i doubt you could find a miata with a total of 800$ engine mod to pull that good as mine... not saying im the number 1, im just saying i think i did good with a budget that low. I planned at the beginning a 1000$ turbo kit just for fun.
Most people here spend more on engine management than you did on your entire turbo system. Which is why theirs start and yours doesn't.
#25
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Hay gauyzzzzz I also want my miata to tow 8000 lb. I baught a class 1 hich and hooked it up but now when I connect my horsey trail0r to it the hitch touches the ground and my car looks like it's going to flip over. Wat shud i do-ezzz? I was able to tow my roach coach hotdog stand before but I need to tow my horsy's now.
How ridiculous does this sound to you? because what you have told us OP is not far off.
How ridiculous does this sound to you? because what you have told us OP is not far off.
#27
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Wow... i was hoping to get help or advice... not this kind of answer...
guys how can u juge someone's car without even see the result of it.. you guys should be less negative and be more open mind to others idea than spend 10 gran and expert a race car.. this is a daily car and not intend to drag race .. its just for fun
guys how can u juge someone's car without even see the result of it.. you guys should be less negative and be more open mind to others idea than spend 10 gran and expert a race car.. this is a daily car and not intend to drag race .. its just for fun
Are you having fun with your car that doesn't run even close to right at the moment?
#28
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Hay gauyzzzzz I also want my miata to tow 8000 lb. I baught a class 1 hich and hooked it up but now when I connect my horsey trail0r to it the hitch touches the ground and my car looks like it's going to flip over. Wat shud i do-ezzz? I was able to tow my roach coach hotdog stand before but I need to tow my horsy's now.
![](https://www.miataturbo.net/images/smilies/bowrofl.gif)
![](https://www.miataturbo.net/images/smilies/bowrofl.gif)
![](https://www.miataturbo.net/images/smilies/bowrofl.gif)
If youre still listening, THIS^ is real advice. If you had spent 10 minutes searching you would have known this.
This forum is so tailored to budget enthusiast that you see it mentioned in grassroots motorsports, but even we consider an MS1 a MINIMUM. Anything less is dangerous and stupid.
#30
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Sorry if I skipped over it, but is the SAFC tuned? Like someone mentioned before, it sounds like the car is super rich when cranking. It would be pretty easy to use the SAFC to pull fuel below 500 or 1000 rpms and hopefully resolve, or at least minimize, your cranking issues.
Are you insinuating that you can actually tune with an SAFC?
#32
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That much i knew.... i have one. I just figured it belonged in a museum display case along with this freshness i'm putting in my display.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68783-miata-safc-440cc-hard-start-20130208_225316.jpg?dateline=1362080219)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68784-miata-safc-440cc-hard-start-20130206_191156.jpg?dateline=1362080219)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68785-miata-safc-440cc-hard-start-20130206_191347.jpg?dateline=1362080219)
Although.... my SAFC looks too modern.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68786-miata-safc-440cc-hard-start-20130208_225352.jpg?dateline=1362080219)
Maybe i need one of the originals that was just one **** that adjusted the entire rev range at once. As you can imagine, it was REALLY useful.
ACHIEVE THE DRIVING HIGH. APEXI, IT'S THE SUPREME.
![](http://www.rx7club.com/attachments/2nd-generation-specific-1986-1992-17/371074d1262021746-original-apexi-afc-install-question-apexi_afc-jpg)
Then they were all like **** GUISE!!! WE NEED SOMETHING SUPER!!! ADD MORE *****!!!
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68783-miata-safc-440cc-hard-start-20130208_225316.jpg?dateline=1362080219)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68784-miata-safc-440cc-hard-start-20130206_191156.jpg?dateline=1362080219)
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68785-miata-safc-440cc-hard-start-20130206_191347.jpg?dateline=1362080219)
Although.... my SAFC looks too modern.
![](https://www.miataturbo.net/attachments/diy-turbo-discussion-14/68786-miata-safc-440cc-hard-start-20130208_225352.jpg?dateline=1362080219)
Maybe i need one of the originals that was just one **** that adjusted the entire rev range at once. As you can imagine, it was REALLY useful.
ACHIEVE THE DRIVING HIGH. APEXI, IT'S THE SUPREME.
Then they were all like **** GUISE!!! WE NEED SOMETHING SUPER!!! ADD MORE *****!!!
![](http://wctsmultiservizi.com/wp-content/uploads/2012/09/145.jpg)
#35
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Sorry if I skipped over it, but is the SAFC tuned? Like someone mentioned before, it sounds like the car is super rich when cranking. It would be pretty easy to use the SAFC to pull fuel below 500 or 1000 rpms and hopefully resolve, or at least minimize, your cranking issues.
"because its a piece of junk, it cannot manipulate start up enrichments, therefore pulling fuel at low rpm will simply make it super lean when its actually running"
that and the fact that OP said its already on maxed out trying to take out fuel.
#36
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I'm gonna go with something along the lines of:
"because its a piece of junk, it cannot manipulate start up enrichments, therefore pulling fuel at low rpm will simply make it super lean when its actually running"
that and the fact that OP said its already on maxed out trying to take out fuel.
"because its a piece of junk, it cannot manipulate start up enrichments, therefore pulling fuel at low rpm will simply make it super lean when its actually running"
that and the fact that OP said its already on maxed out trying to take out fuel.
This, to the point that he's started to **** with the spring in his air metering system...
Which you know, tricks the ECU into thinking the load being presented to it is less than it actually is.
Sooo.... YAY! MOAR TIMING!!!!!
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#39
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hello again miata turbo peeps!!
I just wanted to update you guys about the solution I used!!
I simply put a relay on the fuel injection fuse (keeping it fused of course) this allow me to cut fuel injection for the first 2-3 crank then activate it and start perfectly!
BTW thank you Leafy, your answer was clear and simple and you where polite.
I just wanted to update you guys about the solution I used!!
I simply put a relay on the fuel injection fuse (keeping it fused of course) this allow me to cut fuel injection for the first 2-3 crank then activate it and start perfectly!
BTW thank you Leafy, your answer was clear and simple and you where polite.