MS2 and e85 tunning

[denz]

Want to run e85 with my MS and have done some research and came to this ? Can I use the same ve table but add more pulse timing to my inj to add the needed fuel.

[Stinger]

No

[denz]

Ok thanks.

[Stinger]

You'll have to re-tune the ve table but you can just start by adding about 30% more to all of it. I think you can actually change your required fuel settings though instead, not positive on that though.

[Stinger]

I did a little research and it appears all you need to do is change your required fuel afr to 9.7 and this should get you very close (if not perfect) for the whole tune.

[denz]

thanks stinger this is also what i found out. it is now running on e85. but just as i got it running again the stinger header failed. blew the gasket out at the head. so i got it off know and im taking it to ge resurfaced. let u know how it goes,

[Stinger]

Once resurfaced you may try not using a gasket and just putting a layer of copper spray on it or high temp rtv.

[denz]

well I always run a gasket and some high temp. but maby ill try it without it. also u say 9.7 others say 9.87 where did u get your info.

[Stinger]

I got mine from a turbo buick forum. It's just the e85 stoichiometric ratio which doing another google search seems to confirm the 9.7:1 figure. 9.87 would give it 6% less fuel than 9.7 so either one would be "close" but its best to use the one that's correct

[denz]

cool ill change it, header back on now the ex wastegate flange is leaking. have to fix it. Thanks for the help.

[Stinger]

No need for a gasket on the wg either as long as the surface is flat.