Honeycomb for better air flow
04-02-2017, 04:22 PM
#32
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Location: Carlsbad, CA - Papaikou, HI
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No worries Mat, I post to hear the comments of others. Your experimentation is outside my willingness to have a car that I can't smog test successfully but it is fun to test a few things that should not alter the emissions much.
In conclusion on the honeycomb, I pulled it tested it set at 380 Ohms and then at the blinker test point it liked with just Ken,s chips which was 232 with the honeycomb and 351 without it. I have to say the car pulled harder set richer but not enough to run out of spec at idle or just at a cruse.
So the honeycomb did restrict the air flow a small amount but also did smooth out the idle a bit and up from idle to cruse. Fun stuff to play with.
If you have a 86 and have not installed Kens chips and the '87 FPR it is worth the $300.
Back to debugging electrical accossories.
Cheers, Steve
In conclusion on the honeycomb, I pulled it tested it set at 380 Ohms and then at the blinker test point it liked with just Ken,s chips which was 232 with the honeycomb and 351 without it. I have to say the car pulled harder set richer but not enough to run out of spec at idle or just at a cruse.
So the honeycomb did restrict the air flow a small amount but also did smooth out the idle a bit and up from idle to cruse. Fun stuff to play with.
If you have a 86 and have not installed Kens chips and the '87 FPR it is worth the $300.
Back to debugging electrical accossories.
Cheers, Steve
04-02-2017, 06:23 PM
#33
Rennlist Member
Hey Steve it sounds like the Ohms with the honeycomb installed were lower to meet blinkr than without...which is telling me for same volume of air, there is an efficiency gained if the MAF can be set lower to meet blink'r than without?
Am I understanding your comments correctly?
Am I understanding your comments correctly?
04-02-2017, 11:41 PM
#34
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Sorry I have a typo in the numbers.
after installing the honeycomb the blinker required an Ohm setting of 232. After removing the honeycomb 251.
This car blinker tested at 380 without the Porken chip-set.
I concluded the biggest change was from the chip-set and '87 Higher pressure FPR.
Clearly there was a small change based on installing the honeycomb.
I just know that to reach the higher Ohm setting without the honeycomb you have to adjust the MAF to a richer setting. I tells me the there is slightly more air getting to the O2 sensor without the honeycomb so turning the CO adjuster to a richer setting is needed to meet the set point of the O2 sensor. Have I got that wrong? The change in how the motor runs was also slight but it did smooth out the idle and changes in throttle. The big change in performance was from the Porken chip-set and '87 FPR. When I set the Ohms to the std 380 I do feel the car had a bit more power. I think you are correct that a rich mixture makes the car a bit more responsive.
Cheers, Steve
after installing the honeycomb the blinker required an Ohm setting of 232. After removing the honeycomb 251.
This car blinker tested at 380 without the Porken chip-set.
I concluded the biggest change was from the chip-set and '87 Higher pressure FPR.
Clearly there was a small change based on installing the honeycomb.
I just know that to reach the higher Ohm setting without the honeycomb you have to adjust the MAF to a richer setting. I tells me the there is slightly more air getting to the O2 sensor without the honeycomb so turning the CO adjuster to a richer setting is needed to meet the set point of the O2 sensor. Have I got that wrong? The change in how the motor runs was also slight but it did smooth out the idle and changes in throttle. The big change in performance was from the Porken chip-set and '87 FPR. When I set the Ohms to the std 380 I do feel the car had a bit more power. I think you are correct that a rich mixture makes the car a bit more responsive.
Cheers, Steve