I need more fueling with alcohol-help.

Rocket468 · 09-19-2006

Another thing. We did some testing with intank pumps, and we found them to corrode. We used standard pumps in our testing. So this may not be an issue with what you have, I am not telling you to quit using what you have just be aware of our finding so you can watch for signs of failure before it happens. Which may not happen at all.
We are not sure what is different with the flex fuel pumps other than the seals are ethanol compatible. Eth is not corrosive like Meth is. So its possable its just a seal change. Eth likes to eat plastics and rubbers, Meth likes to eat metals..

drmatera · 09-19-2006

Rocket, thanks for the info. I have a 1.8gpm shurflo pump that i plan to install shortly. I've never experienced the "bog" people talk about so i was always concerned about what size nozzle i needed.

drmatera · 09-22-2006

Well, the fuel pump i'm using has been sitting in the resevoir now for about 6 months, which does concern me. That is why I plan to swap it out for this shurflo pump, plus the benefit of higher pressure

. I have noticed since going from 10psi of boost (a/f would drop from 12.4 to 11.4) to 15psi (a/f drops from 12.4 to 12.0) that I may be stretching it a bit.

Rocket468 · 09-25-2006

Yea, you need more injector when up on top.

09-19-2006	#12 (permalink)
drmatera Water Injection Newb Year: 1991 Make: Ford Model: Mustang 5.0 Turbo Join Date: Sep 2006 Posts: 13	Rocket, thanks for the info. I have a 1.8gpm shurflo pump that i plan to install shortly. I've never experienced the "bog" people talk about so i was always concerned about what size nozzle i needed. __________________ 1991 mustang coupe - T70 turbo - DIY meth 10.45 @ 134mph , 22psi boost , pump gas Megasquirt1

09-22-2006	#13 (permalink)
drmatera Water Injection Newb Year: 1991 Make: Ford Model: Mustang 5.0 Turbo Join Date: Sep 2006 Posts: 13	Well, the fuel pump i'm using has been sitting in the resevoir now for about 6 months, which does concern me. That is why I plan to swap it out for this shurflo pump, plus the benefit of higher pressure . I have noticed since going from 10psi of boost (a/f would drop from 12.4 to 11.4) to 15psi (a/f drops from 12.4 to 12.0) that I may be stretching it a bit. __________________ 1991 mustang coupe - T70 turbo - DIY meth 10.45 @ 134mph , 22psi boost , pump gas Megasquirt1

09-19-2006	#11 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,121	Another thing. We did some testing with intank pumps, and we found them to corrode. We used standard pumps in our testing. So this may not be an issue with what you have, I am not telling you to quit using what you have just be aware of our finding so you can watch for signs of failure before it happens. Which may not happen at all. We are not sure what is different with the flex fuel pumps other than the seals are ethanol compatible. Eth is not corrosive like Meth is. So its possable its just a seal change. Eth likes to eat plastics and rubbers, Meth likes to eat metals..

09-25-2006	#14 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,121	Yea, you need more injector when up on top.