Another Injector Question

grey88gt · 02-12-2006, 06:30 PM

My car is all stock except for Flowmaster cat back exhust, AFR, 190LPH fuel pump, and upper intake spacer. 88 SD AOD car. I did a search on injector size and read alot of great posts, and learned alot. I plan on in the future, bulding a 300-350hp 302 for my car. Right now Iam replacing the lower intake gasket, and I know Ive got a bad injector. Iam sure I could fine some used 19# injectors pretty easy. Has any body here run 24# injectors on a stock SD car. I thought about upgradeing to them and adding some spray while I build the other engine. I know need to convert to Mass AIr to, but wanted to wait until Iam done with the new block. Thanks!

tmoss · 02-13-2006, 08:27 AM

I would not do it - I've seen more fail than get it to work with SD. Try finding a set of Orange body 19# injectors on an Explorer or Mountaineer - I got mine with my Explorer intake and they work great.

redsn95vert · 02-15-2006, 10:22 PM

I'm not too sure the speed density system can handle a injector upgrade like that. Used injectors are easy to find, I've got a set of 19s in my garage, let me know if you're interested

Dark_5.0 · 02-16-2006, 09:10 AM

My car didnt like the 24 #ers with Speed Density.

Pig rich!!!!!

Unit 5302 · 02-18-2006, 03:31 PM

Old friend used 24's on his almost bone stock '87. Got a little idle surge, but it handled the swap pretty much okay otherwise.

Doing an injector swap to an otherwise relatively stock SD engine will put the computer pretty much at it's maximum ability to adjust. You're better off going with 19s rather than risking it.

88workcar · 02-18-2006, 05:42 PM

you will be fine up to around 380hp with SD and 19s

grey88gt · 02-18-2006, 09:18 PM

Thanks for the replys. 19#ers it is for nowand Ill stay SD. If I can get 350 hp out of a SD setup thats great. If I can get down in the low 13's Ill be very happy. Again thanks for the help!

tmoss · 02-19-2006, 11:52 AM

the 350HP is gonna be flywheel, not rear wheel..........SD with 19# can get you into the 12s depending on the weight of your car.

grey88gt · 02-19-2006, 01:37 PM

Yah I relize that on the HP at the fly-wheel. I used to work for Cummins Southern Plains Power, run many truck on a chassis dyno. I used to recal Cummins PT (presure time) fuel fumps and injectors. This Mustang is the first car injection ive messed with. But with the help Ive found here with all you guys , dont think Ill have any problems figureing it out. Again Thanks

88workcar · 02-19-2006, 05:33 PM

I have gone 11.60s @ 116 on a not perfect pass. With 19lbers and SPEED DENSITY. I finish a motor today. A stocker with the holly set up on top. 19s on it, I,ll make a pass next week. Then I am going to spray the hell out it. That should be 11.20 or so. I,ll keep you posted

tmoss · 02-19-2006, 05:41 PM

Wet spray I hope.........

02-12-2006, 06:30 PM	#1
grey88gt Registered Member Join Date: Feb 2004 Location: Skiatook, Oklahoma Posts: 193	Another Injector Question My car is all stock except for Flowmaster cat back exhust, AFR, 190LPH fuel pump, and upper intake spacer. 88 SD AOD car. I did a search on injector size and read alot of great posts, and learned alot. I plan on in the future, bulding a 300-350hp 302 for my car. Right now Iam replacing the lower intake gasket, and I know Ive got a bad injector. Iam sure I could fine some used 19# injectors pretty easy. Has any body here run 24# injectors on a stock SD car. I thought about upgradeing to them and adding some spray while I build the other engine. I know need to convert to Mass AIr to, but wanted to wait until Iam done with the new block. Thanks!

02-13-2006, 08:27 AM	#2
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: Another Injector Question I would not do it - I've seen more fail than get it to work with SD. Try finding a set of Orange body 19# injectors on an Explorer or Mountaineer - I got mine with my Explorer intake and they work great. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

02-15-2006, 10:22 PM	#3
redsn95vert Registered Member Join Date: Jul 2000 Location: Rochester Posts: 323	Re: Another Injector Question I'm not too sure the speed density system can handle a injector upgrade like that. Used injectors are easy to find, I've got a set of 19s in my garage, let me know if you're interested __________________ 95 GT convertable, ported+polished GT40 heads, port matched upper and lower Cobra intake manifold, Flowthech headers, Catco hi-flow h-pipe with 2 hi-flow cats, Mac true fit catback exhaust, 3.73 gears, underdrive pullies, Edelbrock 70mm throttle body, Mac cold air intake, FMS 24lb injectors, Granatelli 75mm mass air

02-16-2006, 09:10 AM	#4
Dark_5.0 Registered Member Join Date: Apr 2001 Location: Staging lane Posts: 4,337	Re: Another Injector Question My car didnt like the 24 #ers with Speed Density. Pig rich!!!!! __________________ 92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim. 00' Lightning-Stock 88'CRX-13 second ego killer

02-18-2006, 03:31 PM	#5
Unit 5302 Registered Member Join Date: May 1999 Posts: 5,246	Re: Another Injector Question Old friend used 24's on his almost bone stock '87. Got a little idle surge, but it handled the swap pretty much okay otherwise. Doing an injector swap to an otherwise relatively stock SD engine will put the computer pretty much at it's maximum ability to adjust. You're better off going with 19s rather than risking it.

02-18-2006, 05:42 PM	#6
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: Another Injector Question you will be fine up to around 380hp with SD and 19s __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

02-18-2006, 09:18 PM	#7
grey88gt Registered Member Join Date: Feb 2004 Location: Skiatook, Oklahoma Posts: 193	Re: Another Injector Question Thanks for the replys. 19#ers it is for nowand Ill stay SD. If I can get 350 hp out of a SD setup thats great. If I can get down in the low 13's Ill be very happy. Again thanks for the help!

02-19-2006, 11:52 AM	#8
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: Another Injector Question the 350HP is gonna be flywheel, not rear wheel..........SD with 19# can get you into the 12s depending on the weight of your car. __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/

02-19-2006, 01:37 PM	#9
grey88gt Registered Member Join Date: Feb 2004 Location: Skiatook, Oklahoma Posts: 193	Re: Another Injector Question Yah I relize that on the HP at the fly-wheel. I used to work for Cummins Southern Plains Power, run many truck on a chassis dyno. I used to recal Cummins PT (presure time) fuel fumps and injectors. This Mustang is the first car injection ive messed with. But with the help Ive found here with all you guys , dont think Ill have any problems figureing it out. Again Thanks

02-19-2006, 05:33 PM	#10
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Re: Another Injector Question I have gone 11.60s @ 116 on a not perfect pass. With 19lbers and SPEED DENSITY. I finish a motor today. A stocker with the holly set up on top. 19s on it, I,ll make a pass next week. Then I am going to spray the hell out it. That should be 11.20 or so. I,ll keep you posted __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

02-19-2006, 05:41 PM	#11
tmoss Registered Member Join Date: Mar 2003 Location: Saint Louis, MO Posts: 634	Re: Another Injector Question Wet spray I hope......... __________________ Tom (Torque) Moss 88Gt 5spd Vert, FLowmaster Catbacks, stock cam advanced 4° @ 108.5° ICL, NMRA prepped GT40P heads 1.85/1.55 valves and 1.7 rockers, MAC P headers Jet-Hot coated, 97 Exlporer intake (ported lower), TB and injectors. 277RWHP/330RWTQ (SAE). http://www.fastlanecars.com/