Hi,
This topic has been discussed here:
https://ls1tech.com/forums/showthread.php?t=497893

Take a look at my post, I have done this conversin on my Tahoe.

Please also take a look at the linked page to a Swedish Ethanol forum,
the link points to the English section where there is a very good link to a discussion on the hardvare VS ethanol.

Here is a copy of my post, but please read the whole thread, it is quite informative.

Quote:
Hi,
Sorry to say, GM has closed public acces to the "Tech line" site.
But when it was open, i found GMs official statement of what can happen if you run your non E85 car on this stuff.

There was the obvius warnings about MIL/SES on, but thatīs of no concern if you are converting your car.

The other warning was that E85 MIGHT cause accelerated corrosion.
Nothing on the subject of rubber part damage.

On the WWW there are a lot of sientific info on the properties of Ethanol and the E85 blend. There you can read that the risk of corrosion starts when the water contet is above 0,5%. At least here in sweden the E85 fuel contain a lot less water than that. (can you say a lot less??)

I have converted my Tahoe, and it runs perfectly. ( HP Tuner)
If I want to "flex fuel it", I just set the stoich mid way betwen gas and E85.
The LTFT takes care of the rest.
Best result is acived by only using E85 and tune the PCM for that, but the LTFT takes care of the ocational emergency gas fill up, if E85 is unavalible.


There is a BIG movement in Sweden converting gas cars to E85, due to the gas prices over here. ( Gas 12,3 sek/litre E85 6,9 sek Litre)

You might want to take a look at this:
http://etanol.nu/forum/viewforum.ph...b5a0767acbacd9f

BR //

 

Excellent! That's exactly the type of info I've been after!!!