LS1RedZ

iTrader: (19)

I've seen people discuss this but I haven't seen any definitive answers.... Yet.... What rwhp will these things max out at? Has anybody tapped them out? I've seen ppl say 1k rwhp.

gnx7

iTrader: (28)

Dual 450lph pumps are a better choice.

Around 800-900rwhp you are going to run out of fuel without a boost a pump.

LS1RedZ

iTrader: (19)

Well I'm making 875rwhp right now @ 16psi. Wanting to swap pullies from a 4.13 to a 3.70 and see what she'll do. I have Lonnie's dual pump kit.

2muchboostNY

iTrader: (8)

If I am not mistaken Freed Engineerings 240sx 2JZ car want into the low 9s at above 900rwhp with 2. Just did some wiring upgrades for it....I will search around

1320

iTrader: (6)

By my calcs dual 450 s can go way further than 8-900....At 43.5 psi and figure around 20 psi of boost thay can take e85 to atleast 1350 at the crank. Zombies car ran dual 340's to 10.0 at 137 on e85 at 3920 lbs.....which figures to 775 to 810.

LS1RedZ

iTrader: (19)

Yeah I know a guy with a TT T/A making 1100 wheel with his dual 450 setup. I'm curious to know how much my 340s will allow me to make.

willizm

iTrader: (10)

Not sure how that would relate to me but I run dual 340's on e85 but don't have dyno numbers. I'm thinking i'm around the 800-900whp area but not sure. Car went recently 9.75@140mph on 20psi in a 3800lb car. Base fuel pressure is 37psi with boost reference fuel reg.

1320

iTrader: (6)

The 3920 weight was with me in it. I just use the hp to et and hp to speed calcs to get hp. If you ran 140 and you had a rather awesome 1.3 60 (nice job) I d guess you in the 800-850 area... but for the original poster.....there ya go two cars running dual 340s both run 9.75 to 10.00 at almost the same weight. Both figure in the 800-850 rwhp area and I know the 10.00 car was out....on the edge. It ran stock lines, stock rail, stock fp regulator.....so it couild be improved slightly.