what injectors will work good on a 3.1? I;ve eard hat 3.4 and 305 tpi will work, but has anyone tried them?

 

When I swapped the 1995 3.4 in there, I swapped the injectors on the recommendation.
Glad I did, also.
The spray pattern is different than the pintle style. It looks identical to a home shower head.
NOW, I was told MY current 3.4 injectors are the same as a 305.

BUT
Yesterday I was told they are 17lb injectors.

All I'll say is that the 3.4 ones I'm using work perfect.
Might be wise to shop around at places selling injectors and ask them what is the diff.
I can only say again, that the 3.4 ones I'm using and got with this 1995 3.4 engine are a perfect match. I am using them in the 1985 designed 2.8 upper intake system.
See my Smog Passing post for the results of the swap.

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

yep, their 17# karl. Im running 21# (if i remember what i had put in, their SVO)
------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

[This message has been edited by Graeme'sFirebird (edited June 24, 2001).]

 

grammy and 85, so you both are hapy wih the results of the 3.4 and the SVO injectors? Where do you get SVO injectors?

 

SVO injectors are available from ford motorsport...their a direct drop in. The only problem i had was the o-rings on the injectors were larger, so i bought some 3.4 injector o-rings and they went right in and work great. I have a HUGE 2 & 3 gears now just as a result of them

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

what do you mean you have huge 2 & 3 gears now? They pull harder or they last longer?

 

both

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

how much are they and how hard is it to put them in?

 

350 for 6 of them, for the 6cyl in the 3.8 mustangs..i couldnt tell u how hard, i didnt do it personally! I had a speed shop do it. It took him about 3 hours to doo...

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

Installing injectors is quite easy, in theory.
I mean, you remove parts of the intake to gain access. It's right there in plain view.
The hardest part was keeping dirt out of the injector rail.
I had to use a bit of a screw driver (to dig out dirt) & compressed air & carb cleaner to install/swap my 6.
ALSO, some really good lubricant it used for the o-ring. My buddy had it, I know not that oil name.

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

Graeme how much difference is there?

 

i can chirp 2-3 pretty well. I can roast my Tire(single til i have posi) very well, no matter if its 110 degrees out. My gas mileage went up some too...(apparently my injectors b4 were leaking) and basically with my 1.6 rockers and the injectors, i have a little more in 1st, but once i hit second and u nail it the whole rear DROPS and takes off like a bat outta hell..

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

KED, are you talking about the Multec injectors?

------------------
-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

Graeme if you HAD TO guess how much HP and torque you have what would you say? I think I have somewhere around 150hp in the V6 and there is NO WAY it will chirp 2 to 3. With all you mods what numbers do you think you have?

 

Hi Tom,
I can only direct ya to the same response I gave, earlier.
I know not what the other type looks like. I know the Pintle & the type I now have on the car. It does look like a shower head.
Anyone help us with better terms?

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

no idea...but, i will be hitting the 1/4 again and getting dyno'd the same day in a few weeks..

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

I tried 3.4L injectors from a Z34 in the bird for awhile, was way too much gas... Gas mileage went to total ****, and the car would flood at idle and die. I'd imagine you'd need a nice handfull of mods before bigger injectors would be neccessary.

BTW to swap the injectors is a 20 minute job R&R.

 

Graeme what kind of 1.6 rockers do you have? I'm trying to figure out what gave you so much gain to allow an actual gain from bigger injectors. How big of a diff did you feel from the rocker swap?

 

Im using the comp cam roller tip. It surprised me too... it was a night and day difference when they went on.

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

Sweet man! How much did they cost and the price to get them put on?

 

they were 140 dollars..and install was free since i did it myself with the help of someone. Install time was about 14 hrs straight...

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

Graeme, do you have the part # for these rockers???

 

yes i do...com-1414-12 comp cams magnum roller tip rockers. They hit the valve covers.. and ive been told arent produced anymore

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"

 

oh

 

were they made especially for a 6 or were they for an 8????

 

Found them COMP CAMS Magnum Rocker Arms (60* Chevy V6 173cid) 1.52 Ratio 10mm Stud........$110.99

 

monkie where at!!!!!!!!!!??????

 

sweet...

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"