Max hp with 19lb injectors.

95blackbeauty · April 17th, 2008, 01:50 PM

Well i think the title says it all...what exactly is the most hp the stock 19 punders can handle? Im upgrading my fuel pump to a 190lph but was just wondering about the injectors.

HMUSN · April 17th, 2008, 01:59 PM

500cc per minute is approximately equal to 49lbs per hour which is equal to approximately 100hp.
lbs/hour = cc per minute / 10.5
lbs per hour = HP / 2.04
cc per minute = lbs per hour x 10.5
cc per minute = HP x 5
HP = cc per minute / 5
HP = lbs per hour x 2.04

95blackbeauty · April 17th, 2008, 02:05 PM

Originally Posted by HMUSN

500cc per minute is approximately equal to 49lbs per hour which is equal to approximately 100hp.

lbs/hour = cc per minute / 10.5

lbs per hour = HP / 2.04

cc per minute = lbs per hour x 10.5

cc per minute = HP x 5

HP = cc per minute / 5

HP = lbs per hour x 2.04

I love it when you talk dirty to me...

HMUSN · April 17th, 2008, 02:07 PM

you don't need new injectors with the mods in your sig

95blackbeauty · April 17th, 2008, 02:16 PM

heh. I know that...but im going to gt40p's with 1.7rrs and cobra intake...can I make it with the stockers? Im also going back with a 75 shot and a dyno tune. sooo looking at around 350 to 375hp...hopefully

HMUSN · April 17th, 2008, 02:20 PM

you could always upgrade.
injectors don't add power. they allow it. you will need to get a tune if you upgrade injectors though.

95blackbeauty · April 17th, 2008, 02:31 PM

ya...but I figured I would just be close to the max. Think ill be alright?

HMUSN · April 17th, 2008, 02:36 PM

I'd wait for the 5.0 guys to answer..
I'm more of a 4.6 guy

95blackbeauty · April 17th, 2008, 02:59 PM

ahh but you're like god

HMUSN · April 17th, 2008, 03:00 PM

not even close but thanks

Bullitt95 · April 17th, 2008, 06:41 PM

Originally Posted by 95blackbeauty

Well i think the title says it all...what exactly is the most hp the stock 19 pounders can handle? Im upgrading my fuel pump to a 190lph but was just wondering about the injectors.

The formula is:

Maximum HP = (Injector rating x duty cycle x no. of injectors)/Brake specific fuel consumption

Assuming a duty cycle of 85% or 0.85, and a BSFC of 0.50, we get the following:

Maximum HP = (19 x 0.85 x 8)/0.50 = 258hp

That's only a rough estimate but it gives you an idea. How's that for dirty talking?

95blackbeauty · April 17th, 2008, 07:05 PM

heh thanks...Means im gonna need 24 pounders. Damn. But i know there is a guy running around on here with tw heads and the stock injectors. I could prolly get by on the stockers if I didnt add the nitrous right away. Then when I did add the spray just upgrade the fuel too.

fogged306 · April 17th, 2008, 08:48 PM

right around 300 crank hp is the max for 19#ers. at 350 to 375, 24's will be perfect.

April 17th, 2008, 01:50 PM	#1
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	Max hp with 19lb injectors. Well i think the title says it all...what exactly is the most hp the stock 19 punders can handle? Im upgrading my fuel pump to a 190lph but was just wondering about the injectors. __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

April 17th, 2008, 01:59 PM	#2
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	500cc per minute is approximately equal to 49lbs per hour which is equal to approximately 100hp. lbs/hour = cc per minute / 10.5 lbs per hour = HP / 2.04 cc per minute = lbs per hour x 10.5 cc per minute = HP x 5 HP = cc per minute / 5 HP = lbs per hour x 2.04 __________________

April 17th, 2008, 02:07 PM	#4
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	you don't need new injectors with the mods in your sig __________________

April 17th, 2008, 02:16 PM	#5
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	heh. I know that...but im going to gt40p's with 1.7rrs and cobra intake...can I make it with the stockers? Im also going back with a 75 shot and a dyno tune. sooo looking at around 350 to 375hp...hopefully __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

April 17th, 2008, 02:20 PM	#6
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	you could always upgrade. injectors don't add power. they allow it. you will need to get a tune if you upgrade injectors though. __________________

April 17th, 2008, 02:31 PM	#7
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	ya...but I figured I would just be close to the max. Think ill be alright? __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

April 17th, 2008, 02:36 PM	#8
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	I'd wait for the 5.0 guys to answer.. I'm more of a 4.6 guy __________________

April 17th, 2008, 02:59 PM	#9
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	ahh but you're like god __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

April 17th, 2008, 03:00 PM	#10
HMUSN Doc 1986 SVO Join Date: Nov 2006 Posts: 36,836 iTrader: 9 reviews	not even close but thanks __________________

April 17th, 2008, 07:05 PM	#12
95blackbeauty Enthusiast 95 5.0 too slow Join Date: Mar 2007 Location: Athens, TX Posts: 911 iTrader: 0 reviews	heh thanks...Means im gonna need 24 pounders. Damn. But i know there is a guy running around on here with tw heads and the stock injectors. I could prolly get by on the stockers if I didnt add the nitrous right away. Then when I did add the spray just upgrade the fuel too. __________________ 95 gt H.O. Udp's, Pypes O/r X, flowmaster 40's,CAI, 3.73 gears, C&L 76mm MAF,GT40p's, Shorties, 1.6 rr's,Gt40 manifold, short throw, Back Seat Delete BOOSTED

April 17th, 2008, 08:48 PM	#13
fogged306 MM Fanatic 89 GT Join Date: Apr 2007 Location: NY Posts: 4,666 iTrader: 1 reviews	right around 300 crank hp is the max for 19#ers. at 350 to 375, 24's will be perfect.

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