8 cylinder EGT

rocket6706 · Post by **rocket6706** » Sat Nov 15, 2014 1:32 pm

I am new to the forum so forgive me in advance if there is an existing thread. I searched, but could not find. Has anyone developed an 8 individual cylinder EGT solution. My thought to minimize channel usage is to split left and right to one 0-5v channel each and sample each bank in a switched capacity such that every fourth record will be cylinder X. I could then decompose the two data sets using code to build the 8 EGT view. Just an initial thought.

brawta · Post by **brawta** » Sun Nov 16, 2014 3:08 pm

Another approach might be to use an analog-to-CAN conversion module. For example this comes up in a Google search: http://www.texense.com/en/produits/raci ... n_104.html. Don't know for sure, but it might be pricey.

rocket6706 · Post by **rocket6706** » Sun Nov 16, 2014 3:26 pm

Thanks Brawta: I will investigate. When I get my RCP ( soon) I will be able to protype multiple configurations and concepts. Based on my research here are the parts of the puzzle so far:
1. Employ an 8:1 MUX chip (analog deviced ADG526A) and feed it to a programmable port to decompose the signal and write results to a 8 channel file.
2. Started reading the section on virtual ports that may/may not work with number 1.
3. I scratched out a hardware only solution that works, just need to come up to speed on CAN bus protocol.

My vehicle is a 1934 Ford roadster with a naturally aspirated engine. The engine is a V8 305cid that spins upward of 10,000 rpm. EGT, is my number one problem. Inlet pressure second, and the rest nice to know.

Post by **brentp** » Thu Dec 18, 2014 11:35 pm

Keep us updated! if you want some help with the hardware design and contribute it as an open source project we can certainly help move that along. CAN bus integration is a really good idea.

rocket6706 · Post by **rocket6706** » Sun Dec 21, 2014 6:09 am

Brent: I will keep you posted and of course I am all about open source. Just need to get it from brain to paper and then to prototype. Should have something emulated by end of January.

brawta · Post by **brawta** » Thu Jan 15, 2015 5:03 pm

rocket6706 wrote:8 individual cylinder EGT solution

rocket6706, maybe you have already seen this: http://www.diyautotune.com/catalog/cane ... p-542.html

rocket6706 · Post by **rocket6706** » Fri Jan 16, 2015 4:40 am

Brawta: It is an intriguing device for sure. I did come across it doing some research.

Autosport Labs

8 cylinder EGT

8 cylinder EGT

Open Source

Re: 8 cylinder EGT

8 EGT