VR memcal EPROM settings

EPROM EEPROM SRAM NVRAM Flash chips, reading/writing hardware and software
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hoopstar
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VR memcal EPROM settings

Post by hoopstar »

Hi Chaps

About to program my first memcal and wondering what device type I need to select on the programmer for a factory VR EPROM?

Plan is to erase the cal that's on there and install the $11P V104 BLCC V8 bin (VR V8 Auto).

Cheers in advance.

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immortality
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Re: VR memcal EPROM settings

Post by immortality »

27c512 if I'm not mistaken.

If you are using the GQX4 programmer use the identify device function to get a more specific device type.

Read and save teh COME tune and post it here, always good to add more info.
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Re: VR memcal EPROM settings

Post by hoopstar »

Cheers Immortality..

I'm not using the GQX4 but managed to id the device (27C512).

I didn't think we were allowed to post COME Racing cals due to copyright?? If that's not the case, I am happy to put it up here..

Also, I have a stack of 27C512 EPROMs here but they are 100ns unit.. are they fast enough to use?
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Re: VR memcal EPROM settings

Post by immortality »

Not sure TBH, would need to ask a admin.
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Re: VR memcal EPROM settings

Post by Holden202T »

yeah, not supposed to!
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Re: VR memcal EPROM settings

Post by antus »

Keep in mind that with no knock filter you will want to max out the knock retard temp so that it never enables. Else it'll pull 9 degrees timing, always. Unless of you have the knock filter and are reinstalling it, in which case disregard.

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immortality
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Re: VR memcal EPROM settings

Post by immortality »

My bad......
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hoopstar
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Re: VR memcal EPROM settings

Post by hoopstar »

antus wrote:Keep in mind that with no knock filter you will want to max out the knock retard temp so that it never enables.
Is this the correct setting Antus??

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Re: VR memcal EPROM settings

Post by immortality »

Yep, that's the bugger.
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Re: VR memcal EPROM settings

Post by j_ds_au »

hoopstar wrote:Also, I have a stack of 27C512 EPROMs here but they are 100ns unit.. are they fast enough to use?
I have a vague recollection that you need 90ns or faster.

Joe.
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