Need help identifying injector size
02-20-2012, 08:07 PM
#11
4th Gear Member
Join Date: Sep 2009
Location: NC
Posts: 1,481
A tune is the only change needed if swapping from 19# to 24#?
No MAF change needed?
I know I am running my 19# quite hard and I'm still pondering an upgrade of injectors to 24#. The math says my 280-285rwhp (335flywheel) is putting my injectors on the edge.
No MAF change needed?
I know I am running my 19# quite hard and I'm still pondering an upgrade of injectors to 24#. The math says my 280-285rwhp (335flywheel) is putting my injectors on the edge.
02-20-2012, 10:00 PM
#13
2nd Gear Member
Thread Starter
Join Date: May 2009
Location: New York
Posts: 476
where at in NY are you? i got a set of pink tops (21#) with less than 30k miles on them. they're still weathered, and they could prolly use some new pintle caps/o-rings, but other than that they're great. i'll send em to ya if ya pay for shipping or come get 'em. I'm in central jersey (mcguire afb)
I've also got a set of green tops, but i cant just part with those, need at least 150. also in need of pintle caps/O-rings.
I've also got a set of green tops, but i cant just part with those, need at least 150. also in need of pintle caps/O-rings.
02-20-2012, 10:14 PM
#14
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Join Date: Nov 2007
Location: NJ / MA
Posts: 1,337
sounds 'bout right. IIRC i found them for about 3$ per injector online, so $20 is on the mark. my local FLAPS dont stock them nor can i special order them. I got a set of 65'ers in EV6 now, so the 42's and 21's are just sittin. might use the 42's on a 6.0 LQ4.
02-20-2012, 10:40 PM
#15
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Join Date: May 2009
Location: New York
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02-21-2012, 06:04 AM
#16
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Cliffy,
I realize upgrading the injector lb/h size is all about getting them to a lower duty cycle (under 80% ideally correct?). I've found a 21lb/h set for $75, and I'm wondering if that size is big enough for my minor/bolt-on mods, or if I should just wait to find a good set of 24lb/h injectors. Using your formula:
I calculated these injectors would supply 268.8HP @ 80% duty cycle. This is flywheel HP correct?
Ford claimed the 2000GT came with 260HP, so even if my mods (CAI, Cat-back exhaust, 75mm TB/plenum, and Bama tune) made only a slight increase in HP, would I be limiting myself in the higher RPMs? Just guessing here, say my car has 280HP (flywheel), that puts the injectors at a 83% duty cycle. With a set of 24 lb/h injectors that would give me a 73% duty cycle. Is that enough of a difference to concentrate on the 24lb/h injectors exclusively?
I realize upgrading the injector lb/h size is all about getting them to a lower duty cycle (under 80% ideally correct?). I've found a 21lb/h set for $75, and I'm wondering if that size is big enough for my minor/bolt-on mods, or if I should just wait to find a good set of 24lb/h injectors. Using your formula:
I calculated these injectors would supply 268.8HP @ 80% duty cycle. This is flywheel HP correct?
Ford claimed the 2000GT came with 260HP, so even if my mods (CAI, Cat-back exhaust, 75mm TB/plenum, and Bama tune) made only a slight increase in HP, would I be limiting myself in the higher RPMs? Just guessing here, say my car has 280HP (flywheel), that puts the injectors at a 83% duty cycle. With a set of 24 lb/h injectors that would give me a 73% duty cycle. Is that enough of a difference to concentrate on the 24lb/h injectors exclusively?
New pintle caps, O-rings and filterswill cost $30 or so...
02-21-2012, 09:44 AM
#17
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Thread Starter
Join Date: May 2009
Location: New York
Posts: 476
Looks like the kit (single 1.5mm discharge hole) will work regardless.
02-21-2012, 10:11 AM
#18
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Join Date: Dec 2006
Location: Saint Augustine, FL
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I was aware of that, and if I were doing a Mustang I would get the 4-hole caps--then again I would not buy used injectors unless they were dirt cheap, or squeaky clean/low mileage from a reliable source. If there is a problem beyond O-rings and caps it will cost $20 to $30 a pop to get them rebuilt--a false economy IMHO.
Last I knew Brothers Performance still had some of the M-9593-AA302 24 lb/h (Jetronic) units in stock for $170 a set...
Last I knew Brothers Performance still had some of the M-9593-AA302 24 lb/h (Jetronic) units in stock for $170 a set...
02-21-2012, 11:35 AM
#19
2nd Gear Member
Thread Starter
Join Date: May 2009
Location: New York
Posts: 476
I was aware of that, and if I were doing a Mustang I would get the 4-hole caps--then again I would not buy used injectors unless they were dirt cheap, or squeaky clean/low mileage from a reliable source. If there is a problem beyond O-rings and caps it will cost $20 to $30 a pop to get them rebuilt--a false economy IMHO.
Last I knew Brothers Performance still had some of the M-9593-AA302 24 lb/h (Jetronic) units in stock for $170 a set...
Last I knew Brothers Performance still had some of the M-9593-AA302 24 lb/h (Jetronic) units in stock for $170 a set...
The link you posted is for the EV6 body style, will those work in replacing my EV1's if I were to upgrade?
02-21-2012, 12:13 PM
#20
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Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
Zero2005 (see above) is sending me his 21lb/h set for just the shipping (thanks again!) with only 30k miles through them. My car is approaching 100k miles, so I'm feeling comfortable putting the new ones in once I put them through a thorough cleaning and o-ring/filter replacement.
The link you posted is for the EV6 body style, will those work in replacing my EV1's if I were to upgrade?
The link you posted is for the EV6 body style, will those work in replacing my EV1's if I were to upgrade?
EV1 and EV6 are the body style, the connectors can be Jetronic/Minitimer or USCAR type--our cars the use Jetronic type connector. The FRPP M-9593-AA302 units (discontinued by FRPP nearly 2 years ago) have the Jetronic connector--I run them in my car...
There are EV1s with USCAR connectors and EV6s with Jetronic/Minitimer connectors, and vice versa...