Worth it to upgrade return line on Lethal budget?

[greenflash00]

I'm going to be running a TVS on e85 with about 21lbs. Can't decide if I should just keep the -6an or go ahead and run -8/-8?

Fuel specs are:
Div x Hat
2 Walbro 465 pumps
Div X regulator
-8an Feed instead of stock line
80s

Keep the -6 or upgrade?

 

[evolve]

No need IMO. You should be all set.

 

[JeremyH]

Absolutely go full 8an if its e85 with those pumps and 900lph+ of flow. Any reason for such big pumps and small injectors. dual 465's will support 1000rwhp on e85 but the 80lb injectors are going to be done around 650-700rwh at 40psi base pressure and 20+ lbs of boost.

 

[greenflash00]

Absolutely go full 8an if its e85 with those pumps and 900lph+ of flow. Any reason for such big pumps and small injectors. dual 465's will support 1000rwhp on e85 but the 80lb injectors are going to be done around 650-700rwh at 40psi base pressure and 20+ lbs of boost.

Just because I only wanted to swap pumps once. I figured do it once, do it right. I will be on pump gas 95% of the time but really just want an e85 tune for race days.

 

[mod mod t56]

Im doimg a similar setup the guy at hpp said those PUMPS would be good to 800 on e85. Also told that 80# injectors would be good to about 800 as well ....I wont see those numbers...just sayin ...

 

[cj428mach]

Im doimg a similar setup the guy at hpp said those PUMPS would be good to 800 on e85. Also told that 80# injectors would be good to about 800 as well ....I wont see those numbers...just sayin ...

I think you're going to need to really bump up your pressure to run 800 rwhp on 80's. When I was looking id1000s for my car they needed to be ran at 50psi base pressure to not be maxing them out shooting for the low 700's. I can't remember off the top of my head but I the id1000's are like 98lb injectors.