Z06 Fuel pump
Originally Posted by stik6shift93
Wow man, do you need somebody to stroke your ego? Ls7's are sae 505 i believe and put down 440-450 at the wheels, bust out your calculator. Rule of thumb is 15% on manual 18-20% loss on an auto.
Actually the LS7 is making around 525 at the crank..Chevy historicly has always under rated their engines and still does. Hot Rod Magazine did a dyno pull on a LS7 crate motor it made 546 HP...through stock exhaust manifolds without cats or mufflers they figured that the cats and muffers would soak up about 22 HP..so that puts the FWHP at 524.. all the stock C6 Z06's I have seen on the chassis dyno are making between 450-460 RWHP..
TECH Enthusiast
Joined: Jul 2006
Posts: 638
Likes: 0
From: San Diego
Did HOT ROD magazine also forget to install the factory air box and ALL engine accessories? The way the factory rates an engine is " As installed in the vehicle". And is very acurate. In '04 there was a huge lawsuit involving several manufactures regarding advertised h.p.. Honda lossed big because they were using race fuel (so the cumputer wouldn't rob timing), and they were caught using the exhaust sytem from a Passport (which flows better) to rate the output of the Accord. G.M. actually blew the whistle. Then S.A.E. stepped in and re-wrote the rules on what was allowed, they eliminated the use of race fuel, which G.M. never used, and they required that the exhaust system had to be the system that was installed on that particullar vehicle, not simply a factory stock system (A loophole that Honda exploited). LOng story short G.M. rerated everything under the new guidelines, the ZO6 was originally rated at 495, with the new S.A.E. rules they were able to re-test the vette and came up with 505 h.p.. Same for the Caddy XLR, it got a bump as well, I think it was rated at 474 up from 469. Chevy may have underrated engine output in the past (10 years ago), but not anymore, it is a very serious offense that can lead to multi-million dollar lawsuits.
Well then using your therory the drive train loss from 505 to 460 is even less than 12%..you sir are a tool..you talk in circles..trying to communicate with you is impossible..you should log onto www.webemorons.com and find some new friends..every post you make confirms your status .. 
Nate answered the question a dozen posts ago..he is an expert on the subject and a vendor on here ... he knows fuel systems as well as anyone..the rest was just playing with the tool..you know..low level intertainment..
Last edited by slt200mph; Aug 16, 2006 at 05:22 PM.
wow... thanks for stealing my thread dicks... hahahhahah J/K 
so realistically... what in the hell should i do about my fuel pump setup??? in tank?? in line??? boost a pump??? im planning on 800 RWHP on spray... i obviously need an upgrade lol
so realistically... what in the hell should i do about my fuel pump setup??? in tank?? in line??? boost a pump??? im planning on 800 RWHP on spray... i obviously need an upgrade lol
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo NASTY N8 aka Nate is the man when it comes to fuel systems..he is a vendor here I got mine from him and he will shoot straight with you..that is who I'd contact if I had any kind of fuel system questions ..
NASTY PERFORMANCE
847-458-4858
ASK FOR NATE
NASTY PERFORMANCE
847-458-4858
ASK FOR NATE
TECH Enthusiast
Joined: Jul 2006
Posts: 638
Likes: 0
From: San Diego
LOL, you're right, back to topic. Honestly if I were building (another) engine making that kind of power, I would rig up a belt driven mechanical pump, or at minimum a 400GPH + electric external. Let me guess, now everyone here will say that a stock pump will handle the power? Maybe so, but at that power level you can't have too much fuel at the ready.
TECH Resident
Joined: Oct 2005
Posts: 787
Likes: 0
Originally Posted by GOaT Cheese
LOL, you're right, back to topic. Honestly if I were building (another) engine making that kind of power, I would rig up a belt driven mechanical pump, or at minimum a 400GPH + electric external. Let me guess, now everyone here will say that a stock pump will handle the power? Maybe so, but at that power level you can't have too much fuel at the ready.
800 hp - worst case scenario BSFC on nitrous .60 pounds of fuel required per/hp.
800 * .60 = 480 pounds of fuel required per hour.
BP Ultimate in my area averages a specific gravity of .76 (I called some time ago)
Water has a specific gravity of 8.33. 8.33 * .76 = 6.33 lbs per gal of fuel.
480 / 6.33 = 76 gal of fuel required per hour @ 60 psi worst case. It is likely that the 800 hp nitrous engine will be more efficient and require less fuel.
Why then would you recommend a 400 gal per pump for this engine? Are you aware of a 400 gph pump for efi? Not an electric one at 60 psi.
A belt pump? Be serious. You're not going to successfully feed an engine with a rear mounted tank and a front mounted belt pump with gasoline. Gas can't take the vacuum required on it to move that kind of volume without turning to vapor in the feed line.
An Aeromotive belt pump will move 5 gpm or 300 gph at 100 psi. Waterman and others have similar or higher flowing pumps for front mounted fuel cells and ultra high HP. 3 gpm is good for over 3000 hp on gas.
To put the 800 hp fuel usage in perspective an Aeromotive A1000 moves 72 gph or so at 60 psi. An Eliminator moves 90 gph at 60 psi. Both of these numbers are at 12v. The 13.5-14 volts available with the engine running will improve volume by 10% or a bit more. Other pumps are similar, but I have knowledge of what the Aeromotive pumps actually do.
No, the factory pump hasn't got a chance with or without a BAP.
TECH Enthusiast
Joined: Jul 2006
Posts: 638
Likes: 0
From: San Diego
I must admit, I forgot we are talking about factory type fuel injection. But as for suggesting an 800 h.p. engine will only require 76 gph @60 psi.? I don't know about you , but I've built lots of very high output engines, none of which would survive on such a lean diet. Fuel delivery is the most neglected system in the hobby. Don't get me wrong, I'm not arguing with your math. Simple thermal dynamics proves you are correct, but in the real world 76 gph. @60 psi. will create alot of aluminum BB's in his oil pan ( at the 800 RWHP level of corse).
