how much hp can I support?
Thread Starter
TECH Veteran
iTrader: (6)
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
how much hp can I support? I have:
- Walbro 340 (255 Liter/hour) intake pump
- converted to "standard" return style system
- 97 corvette fuel rail (adjustable regulator on rail)
- SVO 36# injectors (flow 46.7# @ my 66psi fuel pressure)
1) I want to do a 441 CI motor (4.125" bore and 4.125" stroke) and "HOPE" to make ~550rwhp.....
2) THEN, "some time" down the road I MIGHT do a 150hp port injection wet shot on top of the 441....
Do I need to upgrade my system or will I be good to go?
- Walbro 340 (255 Liter/hour) intake pump
- converted to "standard" return style system
- 97 corvette fuel rail (adjustable regulator on rail)
- SVO 36# injectors (flow 46.7# @ my 66psi fuel pressure)
1) I want to do a 441 CI motor (4.125" bore and 4.125" stroke) and "HOPE" to make ~550rwhp.....
2) THEN, "some time" down the road I MIGHT do a 150hp port injection wet shot on top of the 441....
Do I need to upgrade my system or will I be good to go?
Re: how much hp can I support? you pump lines, rails should be albe to suport a little over 600rwhp.
looks like your limiting factor will be your injectors? how much will 36's support?
looks like your limiting factor will be your injectors? how much will 36's support?
Re: how much hp can I support? 46.7# works out to 600 flywheel HP @80% duty cycle, 750 flywheel @100% duty. Are those SVOs rated at 39 or 43.5 psi? If they are rated at 43.5 (3-bar) then they'll flow slightly less, 44.3 at your pressure.
Thread Starter
TECH Veteran
iTrader: (6)
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Re: how much hp can I support?
46.7# works out to 600 flywheel HP @80% duty cycle, 750 flywheel @100% duty. Are those SVOs rated at 39 or 43.5 psi? If they are rated at 43.5 (3-bar) then they'll flow slightly less, 44.3 at your pressure.
cool...that’s what I calculated but wanted to get a second opinion....
I have been "told" that SVOs are rated at 39psi (anyone else know?)...
with a M6, the drivetrain loss is at about 12% (I think). If so:
600 flywheel * .87 = only 522rwhp
I don't know if I'm going to have enough injector...
Re: how much hp can I support? Hmm. Well your looking for 550 HP + 150 shot. If the shot is direct port, that'll also tax the injectors right? A base wet kit would supply it's own fuel. So if direct port, 550 + 150 = 700 RWHP or 800 flywheel. That's gonna blow past 100% duty whether they are rated at 43.5 or 39 lbs. If you ran a regular wet shot, 550 RWHP = ~630 flywheel. That's over 80%, but under 100%. . . about 84% duty. What kind of shot you want?
Thread Starter
TECH Veteran
iTrader: (6)
Joined: Feb 2002
Posts: 4,766
Likes: 0
From: Phoenix, AZ USA
Re: how much hp can I support?
Hmm. Well your looking for 550 HP + 150 shot. If the shot is direct port, that'll also tax the injectors right? A base wet kit would supply it's own fuel. So if direct port, 550 + 150 = 700 RWHP or 800 flywheel. That's gonna blow past 100% duty whether they are rated at 43.5 or 39 lbs. If you ran a regular wet shot, 550 RWHP = ~630 flywheel. That's over 80%, but under 100%. . . about 84% duty. What kind of shot you want?
way to do a wet system (none of this BS of having fuel flow down through the TB 
). Therefore I’m not worried about the injectors when I go with the "spray" (only can they supply the engine for N/A operation), rather will the fuel pump and lines be able to flow enough fuel TO the rail to support the injectors (for 550 rwhp) AND the 150 port shot. Trending Topics
Re: how much hp can I support? Just for precaution I would go to a -10 size line designed for fuel injection. You are just saving your own *** in doing this. Using a stock system is playing roulette. Your number just might come up. You might give Goodridge a call and get a catalog, or maybe get a tech on the horn and tell him your application and what you are wanting. They are knowledgable and friendly. Everbody uses them from a Indy to CART to stock cars. They have a reputation, and they don't **** around. With a machine like you've got you most definitely have the tools to properly route and fabricate fuel line once you get the line, hose and fittings from Goodridge.Here's a few places to call. I'd call Goodridge first and get a giant catalog. The others are racer shops.
www.goodridge.net
www.bakerprecision.com
www.hoerr-racing.com
www.goodridge.net
www.bakerprecision.com
www.hoerr-racing.com
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
