3.1 mods!!!!
3.1 mods!!!!
What can i do with my V6. i have a K&n filtercharger. I plan on getting alot more than that but i need some help.What else can i do.Also is there anyone out there with a turbo or S\C 3.1?
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Supreme Member

Joined: Apr 2001
Posts: 1,049
Likes: 0
From: Garland, TX, USA
Car: 1992 Camaro RS & 1992 Camaro RS
Engine: 3.1 L v6 & 305 (5.0L) v8
Transmission: 4L60 Auto
Brian K
Yes it makes sense, because on our Camaros the computer likes to lean the fuel out A LOT at idle so the hoter the ignition the easier for the spark to jump thru the lean mixture thus igniting the fuel, instead of missing.
Yes it makes sense, because on our Camaros the computer likes to lean the fuel out A LOT at idle so the hoter the ignition the easier for the spark to jump thru the lean mixture thus igniting the fuel, instead of missing.
Supreme Member
Joined: Jul 2001
Posts: 4,461
Likes: 0
From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
just make sure the head in the gen motors catalog will fit the rwd platform.
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85 Firebird. $150.00
2.8 Auto.
Blown Head Gasket.
turbo has arrived
,
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85 Firebird. $150.00
2.8 Auto.
Blown Head Gasket.
turbo has arrived
, Supreme Member
Joined: Mar 2000
Posts: 1,777
Likes: 0
From: First one out of liberty city, burn it to the ground
Monkie, i have to disagree. I took out my MSD 6a and lost a lot of power... wasnt snappy after 2nd gear with the 6a, gas mileage sucked, my rear end also dropped a lot more with the box when u mash the gas.
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1989 Firebird. Modded.
700r4-->t5 w/ram clutch
Cold air, 1.6 rockers, 21lb injectors, 3" y-pipe, random tech cat, 3" ipipe, flowmaster 80 series 3" in 3" out hand made stainless tips, Lakewood LCA's, Msd 6a, Msd coil, Wonder Bar, 180* stat,
First 1500 bucks gets the car..runs great. no problems. needs paint.
rather run last in a full out race, than to NOT have run at all"
See my car Here!
In Memory of #3 Dale Earnhardt
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1989 Firebird. Modded.
700r4-->t5 w/ram clutch
Cold air, 1.6 rockers, 21lb injectors, 3" y-pipe, random tech cat, 3" ipipe, flowmaster 80 series 3" in 3" out hand made stainless tips, Lakewood LCA's, Msd 6a, Msd coil, Wonder Bar, 180* stat,
First 1500 bucks gets the car..runs great. no problems. needs paint.
rather run last in a full out race, than to NOT have run at all"
See my car Here!
In Memory of #3 Dale Earnhardt
I cant explain that. Everyone's car is different I guess. I had the same ignition box you had and I noticed nothing. So I sent it back and got a shift **** (which was a joke
) And my friend also got an ignition put in his car and he also noticed nothing. I guess you are just lucky.
) And my friend also got an ignition put in his car and he also noticed nothing. I guess you are just lucky. Supreme Member
Joined: Jan 2001
Posts: 1,221
Likes: 0
From: Halifax, NS,Canada
Car: 1995 Z28
Engine: LT1
Transmission: Built 4L60E
Axle/Gears: 3.23's - Limited Slip
<font face="Verdana, Arial" size="2">Originally posted by Bretts91RS:
What do i need to do in-order to bypass the TB?</font>
What do i need to do in-order to bypass the TB?</font>
[This message has been edited by Joe_L (edited September 18, 2001).]
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
I also noticed a bit of a difference at higher RPM's with my MSD 6AL box & MSD coil... but it wasn't much. In fact the car takes a split second longer to start after the box. Before, it took a half-second's worth of cranking. Now, it takes almost a second. I did the box because I'm running out of 2.8 mods! 
My TB's bypassed all year round, no problems. But, I do change from a 160 thermostat (summer) to a 195 thermostat ("stock" GM degree) for the winter.
My major tuneup post is here: https://www.thirdgen.org/messgboard/...ML/002189.html
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-Tom P (Hot rodded 1986 Firebird 2.8l)

My TB's bypassed all year round, no problems. But, I do change from a 160 thermostat (summer) to a 195 thermostat ("stock" GM degree) for the winter.
My major tuneup post is here: https://www.thirdgen.org/messgboard/...ML/002189.html
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-Tom P (Hot rodded 1986 Firebird 2.8l)
well GM says they will fit either one... but the kicker is you have to buy the intake(upper and lower) to make the heads fit right... go figure. If you start adding power, big power replace the pistons, they are the weakest link inside the engine.
They are available too... You just have to order different rings.(total seal) DOn't worry guys I am hoping this winter to be ripping my engine out and start fabbing!. Headers, intake, and yes the elusive turbo set up. Now please remember that these are not carb exempt(for now!) If I get alot of people asking and ordering these things I will see what is needed to get that carb eo #. I think it may just be a matter of putting a kit togeather and getting smogged before the kit and after the kit, and if the difference is minimal or non existant I can get it... I am not sure but I think it would work like that. You CA guys help me out here... I WILL BE HOOKING YOU GUYS UP!.
They are available too... You just have to order different rings.(total seal) DOn't worry guys I am hoping this winter to be ripping my engine out and start fabbing!. Headers, intake, and yes the elusive turbo set up. Now please remember that these are not carb exempt(for now!) If I get alot of people asking and ordering these things I will see what is needed to get that carb eo #. I think it may just be a matter of putting a kit togeather and getting smogged before the kit and after the kit, and if the difference is minimal or non existant I can get it... I am not sure but I think it would work like that. You CA guys help me out here... I WILL BE HOOKING YOU GUYS UP!.
<font face="Verdana, Arial" size="2">Originally posted by Bretts91RS:
What kind of pistons? is there a certain type of piston i need to get?</font>
What kind of pistons? is there a certain type of piston i need to get?</font>
Supreme Member
Joined: Jul 2001
Posts: 4,461
Likes: 0
From: BFE, MD
Car: 13 Ram 1500/ 78 Formy
Engine: 5.7 / 7.4
Transmission: 6sp / TH350
Axle/Gears: 3.55 posi / 3.23
P.A.W. has some rebiuld kits for the 6, caint find it right now, kinda amazing to lose a 1200 pg catalog, but they offer cast & forged kits.
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$150.00 2.8 Auto.
Blown Head Gasket.
turbo has arrived
,
this close / \ to getting parts to fix it.
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$150.00 2.8 Auto.
Blown Head Gasket.
turbo has arrived
,this close / \ to getting parts to fix it.
please help: should i buy that dual snorkal like i posted earlier? i need to know becuz its on ebay and if i can make into a ram air type thing for my 3.1 V6 i will get it. please give advice.
Depends on much they want for it. I paid $11 for one at a scrap yard and it only took about 3 min. to cut the air box off. Of course I had to also buy the filters, but hey $11 for the ducting is not bad. Most of the price was the K&N filters which came in at $32 a pop
the dual snorkal is in good condition. its only 9.99 on ebay and it ends tomorrow. aslso if i did buy it what k&n filters would i need i already have one in my stock air box will that work or is it different? help me!!!
my air box is big but there is the black tube that comes from it and it shrinks as it goes... the box is: http://www.imagestation.com/picture/...1/fe36b43e.gif should i cut the skinny part off with a hacksaw? mabie but it 1 inch from the box and add 4 inch dryer hoses for cold air?
[This message has been edited by c-5invalid (edited September 29, 2001).]
[This message has been edited by c-5invalid (edited September 29, 2001).]
You will need a new filter the stock filter wont work. The K&N part number is 33-2008, and just in case you want the original paper replacment filter (no good and restictive) is A918C.
It's not priced that bad, but if you want to save on shipping cost just pull one at local junkyard. It's no biggie. it only took me about 5 min, and I stoped for a smoke break.
I felt a pretty good improvment in throtle respones and acceleration after this mod. I was very happy with. Not only are you getting better air flow, but the intake ducting goes over the front of the radiator and sits just slightly above the gril. You get nice cold high presure air from this area.
c-5invaild,
Don't bother trying to cut that part off. You get a better air flow from the dual snorkle with the airbox cut. Each filter is about 4 - 5 inch squared and is fully exposed when you cut the bottom off the air box. If you cut the tube off your stock intake you will only have about a 3 inch oval opening. It's not a hard job at all. Just keep in mind that you can't do it to a firebird. The firebirds have a low slung hood that wont let it clear.
It's not priced that bad, but if you want to save on shipping cost just pull one at local junkyard. It's no biggie. it only took me about 5 min, and I stoped for a smoke break.
I felt a pretty good improvment in throtle respones and acceleration after this mod. I was very happy with. Not only are you getting better air flow, but the intake ducting goes over the front of the radiator and sits just slightly above the gril. You get nice cold high presure air from this area.
c-5invaild,
Don't bother trying to cut that part off. You get a better air flow from the dual snorkle with the airbox cut. Each filter is about 4 - 5 inch squared and is fully exposed when you cut the bottom off the air box. If you cut the tube off your stock intake you will only have about a 3 inch oval opening. It's not a hard job at all. Just keep in mind that you can't do it to a firebird. The firebirds have a low slung hood that wont let it clear.
I picked up a 3 1/2 long by 3 inch rubber tube that came with 2 screw type clamps at the hardware store to fill in the gap ware the MAF sensor would be. Total cost was abot $3.00 . I don't think GM or anyone else sells a stock tube that will work, but I could be wrong.
The tube from the hard ware store looks like it is suposed to be thare, becuase it matches the color of the intake ducting. I have seen others use a pice of PVC then paint it, but the rubber hose looks better and will flex when you need to move it.
The tube from the hard ware store looks like it is suposed to be thare, becuase it matches the color of the intake ducting. I have seen others use a pice of PVC then paint it, but the rubber hose looks better and will flex when you need to move it.
Just start with the CRANE 2030 cam, double roller chain and 1.52 roller tip rockers. Parts will run you 450, and labor will run you 250-300. Later toss on a dynomax cat back. Otherwise don't waste your money on pulleys, chips, or ignition mods.
Brian k- how much do you think this would shave off my 0-60 times. i plan on doing the big stuff first like a CAM and ROLLER ROCKERS after that ill do the little stuff like a chip and pulleys. i'll probably wont get an ignition set. i have money and i cant wait to spend it all on HP!!!!
Okay I’m back… Looking back on all the mods and mistakes if I had to do it all over again I would do it like this:
Dynomax cat back and high flow converter right off the bat. I needed a new exhaust so I just bought the muffler for like 88 bucks when for another 80 I could have had the whole setup. With the fab work I spent and wasted like 125 bucks just for the muffler to only replace the whole thing 3 years later doing it up right with the dynomax cat back and catco converter.
Then I would look into the CAM, Rockers and Double roller chain. I would do the 1.52 roller rockers first cause they are easy to do yourself or with the help of dad or a buddy who really knows cars. Then I would save up and have a shop install the cam and double roller chain.
Then I would look into a 50-70HP shot of nitrous
I would skip the whole chip thing all together, I would not waste my 80 bucks on pulleys and I would totally ignore so called high performance plugs.
I would then toss on a nice ignition box to help the NOS, rebuild my injectors, port the plenum.
I would then get a new torque arm and LCA’s to help traction and cornering and add some Sub Frames… Cause eventually a small block 400 might find it’s way in there and traction will not hurt our V6’s.. We do slip some too…
I would then look into my tranny.. 2800RPM of stall the B&M trans pak on the hardest setting it had.
Not to sound cynical, chips and pulleys are a waste of cash you could use for mods that would really liven up the old 2.8 and 3.1’s… This is just me and I respect all those that have great success with them, but the cam alone for 169.99 will give you better times and power than the K&N’s, Chips, and Pulleys combined and in the end for less money if you install it yourself.
Dynomax cat back and high flow converter right off the bat. I needed a new exhaust so I just bought the muffler for like 88 bucks when for another 80 I could have had the whole setup. With the fab work I spent and wasted like 125 bucks just for the muffler to only replace the whole thing 3 years later doing it up right with the dynomax cat back and catco converter.
Then I would look into the CAM, Rockers and Double roller chain. I would do the 1.52 roller rockers first cause they are easy to do yourself or with the help of dad or a buddy who really knows cars. Then I would save up and have a shop install the cam and double roller chain.
Then I would look into a 50-70HP shot of nitrous
I would skip the whole chip thing all together, I would not waste my 80 bucks on pulleys and I would totally ignore so called high performance plugs.
I would then toss on a nice ignition box to help the NOS, rebuild my injectors, port the plenum.
I would then get a new torque arm and LCA’s to help traction and cornering and add some Sub Frames… Cause eventually a small block 400 might find it’s way in there and traction will not hurt our V6’s.. We do slip some too…
I would then look into my tranny.. 2800RPM of stall the B&M trans pak on the hardest setting it had.
Not to sound cynical, chips and pulleys are a waste of cash you could use for mods that would really liven up the old 2.8 and 3.1’s… This is just me and I respect all those that have great success with them, but the cam alone for 169.99 will give you better times and power than the K&N’s, Chips, and Pulleys combined and in the end for less money if you install it yourself.
<font face="Verdana, Arial" size="2">Originally posted by Bretts91RS:
Are there any turbochargers or superchargers for the 2.8 and 3.1 MPFI ?i really want one but cant find anything for the mpfi.</font>
Are there any turbochargers or superchargers for the 2.8 and 3.1 MPFI ?i really want one but cant find anything for the mpfi.</font>
Soon enough... I am working on it over the winter hopefully. I will have the entire set up, headers, cross pipe intake pipe, turbo, and the exhaust pipes needed to hook up to the existing exhaust. I will even be offering a Intercooler set up as a option, but you have to use the hood I am designing for it to work properly. The intercooler and all I am looking around maybe 2k. For hood, turbo, all piping, all plumbing, boost controller, computer chip, and most importantly the boost guage. I can also sell the blow off valve seperately.
I will not be held responsable for you blowing your poistons to mars however. I will be selling thiese with the HIGH UNDERSTANDING THAT A REBUILD WITH LOWER COMPRESSION PISTONS IS REQUIRED..
Joined: Sep 2001
Posts: 634
Likes: 6
From: Richmond Hill, GA
Car: They all sit.
Engine: LS1, LB9, LB9, L98, LT1, LT4, LT4
Transmission: A4, T5, T5, A4, A4, T56, TR6060
i switched the dual snorkel air box from my dads 88 2.8L with my off to the side air box, it all fits togeather perfect except for the MAS, i just cut a pipe to fit between the two.and the air temp. sencor has to be moved to plug into the new air intake. i havent done that yet. since my dads car isnt running at the time i left my origional air box in and left it plugged in, a lot better responce now and a little more power. i would definatly recomend buying the tpi air intake
O.K... Does anyone know where to get a catback exhaust for my '91 RS 3.1L V6?? If it is in a magazine please tell me which one... brand name... etc... my mom told me 2 go ahead and start pickin out x-mas presents... so I'm lookin now haha Thanks!
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'91 Camaro RS (in readers rides)
Dark Metallic Blue
V6, 4th Gen Seats, Sony Xplod CD Player, Just took out Pioneer 3-Ways and Infinity Plates, Ordered DJ Sexay's Kicks Panels and then installing a component set, 2 RF Punch 12's, RF Punch Amp, Custom Made Black Carpeted Box, Kelly Charger Front Tires. Soon to come, New Rims, New Rear Tires, Carpet, Floor Mats, Paint Job, Interior Color Change.
E-mail me for any questions or comments.
AdidasPredator15@jam.rr.com
http://www.geocities.com/adidaspredator21/index.html
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'91 Camaro RS (in readers rides)
Dark Metallic Blue
V6, 4th Gen Seats, Sony Xplod CD Player, Just took out Pioneer 3-Ways and Infinity Plates, Ordered DJ Sexay's Kicks Panels and then installing a component set, 2 RF Punch 12's, RF Punch Amp, Custom Made Black Carpeted Box, Kelly Charger Front Tires. Soon to come, New Rims, New Rear Tires, Carpet, Floor Mats, Paint Job, Interior Color Change.
E-mail me for any questions or comments.
AdidasPredator15@jam.rr.com
http://www.geocities.com/adidaspredator21/index.html
After i install the Cam , roller rockers, pullys , chip , and dynomax catback with a hi-flow cat what kind of 0-60 times should expect? i heard that stock 3.1 auto's did it in mid to high 8's.
<font face="Verdana, Arial" size="2">Originally posted by CD MaroMan 91:
O.K... Does anyone know where to get a catback exhaust for my '91 RS 3.1L V6?? If it is in a magazine please tell me which one... brand name... etc... my mom told me 2 go ahead and start pickin out x-mas presents... so I'm lookin now haha Thanks!
</font>
O.K... Does anyone know where to get a catback exhaust for my '91 RS 3.1L V6?? If it is in a magazine please tell me which one... brand name... etc... my mom told me 2 go ahead and start pickin out x-mas presents... so I'm lookin now haha Thanks!
</font>
2011 Norwood Gathering
ThirdGen Firebird Rep
ThirdGen Firebird Rep
Joined: Jun 2000
Posts: 3,435
Likes: 4
From: Sarasota FL
Car: 99 WS6 / 00 SS / 11 CTS-V / 13 300
Engine: LS1 / LS1 / LSA / 5.7 Hemi
Transmission: 4L60E / T-56 / 6L80E / W5A80
Axle/Gears: 3.23 / 3.42 Auburn / 3.23 / 2.62
Sorry to dissapoint you Brett, but 4th gen 3.4 autos do 0-60 in 9.7. 2.8 3rd gen 5 speeds are 10.4. My educated estimate on a 3.1 auto would be 10.2-10.4. A 3.4 auto has such a better torque curve, especially off idle...
10.4 seconds to 60 in a 3.1? that seems kinda hard to believe.im gonna get out my stop watch and try to time my 0-60 times. 10.4 seems to slow? doseanyone agree with me?



