V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

2.8 performance parts

Thread Tools
 
Search this Thread
 
Old Aug 24, 2004 | 02:23 PM
  #1  
shak3r's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2004
Posts: 21
Likes: 0
From: Illinois
Car: 1988 Firebird
Engine: 2.8
Transmission: 700r4
2.8 performance parts

Ok Im staring at 3 brand new 2.8 blocks in my garage. One im looking to see what the max NA (Naturally Aspirated) hp can be gotten. The other will be a full nitrous hog, and the third will be supercharged. Ok I was browsing the internet looking for parts for the 2.8. Yeah I know why mess with the 2.8 why not do a 3.1 or a 3.4. Nah to many doing it not enough focusing on one thing at a time. Never put the carraige before the horse . Anyways I was told by a close friend of mine who runs a very respectable machine shop I can see 250hp easily from a NA 2.8. He said more then likely it wouldnt be emission legal but there is a slim chance it could pass if i leave it fuel injected. Anywayz based on what he and I have come up with for the past 3 months we have been working on this. Ive noticed there isnt much aftermarket goodies for the 60 motors but have notice not to much mentioning on the 2.8's that were in the fieros and all the performance parts that they have for those cars. for example they offer a replacement upper plenum for the 2.8 in the fieros which I assume would work with the birds and camaros, but im guessing some mild modifying?!? Not positive but it should go in without mods , correct me if i am wrong. Or is the throttle setup different and make it non-compatible

This Manifold replaces the top half of the Fiero intake manifold, giving you an effective increase of 64% in the intake air flow and efficiency for highly modified 2.8 V-6 and 3.4 engines.

Only slight modifications to electrical are required to accomplish this install.
1. Relocation of coil pack may be necessary and is recommended in any case for heat reduction.
2. Removing water lines to the Throttle body and blocking off.
3. Extending vacuum lines.
4. New Air intake tubing from Holly Throttle bodies to air cleaner is provided.
5. Stock Throttle cable and cruise cable are used for this installation.

$700.00

Also found these items

We are the ONLY supplier of these hard-to-find Roller Rocker Bolts. These will thread into the stock Fiero head without modifying the rocker arm stud hole. These are 10mm x 3/8" Studs.$57.50
per
set of 12

West Coast Fiero full roller rockers are available in 1.6 to 1. These will greatly reduce valve train friction and increase performance and horsepower output. These will greatly valve float at higher RPM due to less valve train friction and less heat generation than conventional rockers. $302.00
per
set of 12

http://www.westcoastfiero.com/engine...rdware_60.html

Just curious I dont want to run carb, i want to stay fuel injected but besides the edelbrock intake setup i have not seen anything else. If all else fails then ill just have Jim fully prep the stock intake setup doing the whole sha-bang to it. From what I see of the intake it would probably bolt up but the throttle linkage would be on wrong side and wouldnt that make the throttle reversed compared to fromt engine cars!?!? Sorry if I seem stupid but Thats why im asking cause im not sure if most or if any fiero parts will bolt up to our third gens.
Reply
Old Aug 24, 2004 | 02:48 PM
  #2  
Dale's Avatar
TGO Supporter
iTrader: (12)
 
Joined: Jun 2002
Posts: 6,819
Likes: 3
From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
playing with desktop dyno today, out of a 3.4 the most I could make it with OTC parts was 241hp and like 280tq.

their are more parts then you think for these engines, you just gotta hunt!
Reply
Old Aug 24, 2004 | 02:57 PM
  #3  
kretos's Avatar
Supreme Member
 
Joined: Nov 2003
Posts: 3,383
Likes: 0
From: surrey b.c. canada
Car: 89 Iroc
Engine: lb9
Transmission: wc t-5
Axle/Gears: 10 bolt 3.08 posi
just add a turbo watch that 241 jump

a 3.4 turbo thats badged like a 2.8, can anyone say sleeper?
Reply
Old Aug 24, 2004 | 03:27 PM
  #4  
V6sucker's Avatar
Supreme Member
 
Joined: Feb 2003
Posts: 1,287
Likes: 1
Car: a car being parted out
Engine: blown up
Transmission: in peices
also, alot of parts from the V8 can be migrated to the V6 as far as valvetrain.

The biggest improvement you can do is a full on intake (replacing everything from the lower intake up) and ALOT of head work.

everything else is about the same with any engine.
Reply
Old Aug 24, 2004 | 03:39 PM
  #5  
shak3r's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2004
Posts: 21
Likes: 0
From: Illinois
Car: 1988 Firebird
Engine: 2.8
Transmission: 700r4
Im trusting my long time friend since he believes it can be done, i was playing with Desktop as well and couldnt see where he was getting the numbers from im gonna call him now and ask him how he figures and then ill share it with everyone here. ok i got off the phone with him, Im assuming he plans on custom pistons, radical cam , heads matched to the cam and intake setup. I believe he was talking about looking into a full roller setup but i was baffled. He said that he will design the setup to become roller motor. To me that sounds alittle fishy but since hes the machinist expert so ill take his word for it now and go with the flow. He is talking about a full roller design, I asked him about thew cam size and he said you will notice a lumpy idle so I dont know what crazy scheme he has for a cam size when i have more info I will post it and I will be posting the dyno pulls once motor is done , heads done up to the max but still be streetable, intake done up to the max running 10.5 to 1 comp. to keep it pump gas friendly bigger throttle body he wants me to run a 65mm setup. Hes gonna girdle the bottom end forged rods, pistons, hes going to bore it to max bore allowed and he mentioned what he would bore it to but i forgot the size (should of wrote it down) I asked him about the crankshaft and he said that I could have a forged one made for about $690. He believes he will achieve our goal of 250hp. I cant wait to see the dyno pulls to this motor. I get to machine the heads tonite and we are ordering the forged crank today as well, rods and pistons coming from J/E. When I have more detailed specs on motor I will post as for now this is all I have gotten from him about the info.

Oh what do you make of this http://www.60degreev6.com/index.php?p=pages&pid=16

Last edited by shak3r; Aug 24, 2004 at 03:45 PM.
Reply
Old Aug 24, 2004 | 04:09 PM
  #6  
FbodTrek's Avatar
Supreme Member
 
Joined: Oct 2003
Posts: 1,668
Likes: 1
From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
Originally posted by kretos
just add a turbo watch that 241 jump

a 3.4 turbo thats badged like a 2.8, can anyone say sleeper?
It's fun having a cammed 3.4 Badged as a 2.8 lol, You should see the lok on peoples faces.
Reply
Old Aug 24, 2004 | 04:33 PM
  #7  
shak3r's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2004
Posts: 21
Likes: 0
From: Illinois
Car: 1988 Firebird
Engine: 2.8
Transmission: 700r4
Here is a 2.8 on Desktop Dyno that says it can be gotten to 310hp @ 7500 Rpm. Yeah a bit extremely but the lil 6 can hold the rpm built right So this is my goal for the little motor that can.
Attached Thumbnails 2.8 performance parts-desktop-dyno.jpg  
Reply
Old Aug 24, 2004 | 09:07 PM
  #8  
Dale's Avatar
TGO Supporter
iTrader: (12)
 
Joined: Jun 2002
Posts: 6,819
Likes: 3
From: AR
Car: 1991 Camaro RS Vert
Engine: 350 S-TPI
Transmission: T5
Axle/Gears: GU5/G80/J65
Good luck. I see all the info. But some of that is gonna be very expensive to do. Plus I hope you dont plan on street driving it.

Might want to try dropping that timing a bit, I think the marker only goes to 20?
Reply
Old Aug 24, 2004 | 09:45 PM
  #9  
Doward's Avatar
Supreme Member
 
Joined: Aug 2002
Posts: 3,827
Likes: 1
From: Gainesville, FL
Car: 1988 Chevy Camaro Hardtop
Engine: Turbocharged/Intercooled 3.1
Transmission: World Class T5 5 Speed
How are you planning on getting 500cfm of induction?
Reply
Old Aug 24, 2004 | 11:02 PM
  #10  
oil pan 4's Avatar
Supreme Member
iTrader: (1)
 
Joined: Feb 2004
Posts: 1,040
Likes: 1
From: High plains of NM
Car: 89 Firebird
Engine: L98
Transmission: T-56
Axle/Gears: 3.73
If you want to see heads, intake and valve train work check out my car domain site. I P&P my heads and intake, I built my valve train up with titanium retainres, after market valve locks, springs and more.
Reply
Old Aug 24, 2004 | 11:42 PM
  #11  
shak3r's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2004
Posts: 21
Likes: 0
From: Illinois
Car: 1988 Firebird
Engine: 2.8
Transmission: 700r4
Originally posted by Doward
How are you planning on getting 500cfm of induction?
That is just a rough draft of what I believe the car will be asking for. Stock is roughly about 250- 300 cfm. Depending on the engines shape. But as me and Jim figured is that IF and I mean if calculations are correct putting on a throttle body from the stock 52mm to 62mm - 68mm will bump up the demand the engine wants to breathe with. So if the stock demand is 250- 300 a fully gungho 2.8 should demand 500cfm maybe more but wont know true specs till the motor is put together and dyno'd and tested on the demand it pulls on the dyno. So basically we arent 100% sure what the motor will draw or demand but Jim says that he believes the motor will draw 500 or real close to the goal we are looking for the only problem we might run into is programming the ecm to accept radical adjustments to the motor but then again that is a different ballpark and a different day right now im focusing on the needs of the motor. Based on what another person said to costing alot actually its really not to expensive the worst part of the machining is the conversion to roller cam and custom made roller cam. That will be a hefty sum but not to bad. I know some of you v-8 guys are probably reading this and thinking to yourself why bother with doing something like this I could sink the large sum of money into a v-8 and be running 8's. My question to you is this what makes your 350 or 383 or 400 stand out from the rest? Not to much its like a hole in the ground. Everyone has one and runs 13's - 10's all day. How many 2.8's do you her about? How many can break the 14 second barrier into 13's without nitrous, turbos and superchargers? Exactly not many so I chose a different road and dare to be different. And the comment of it being driven on the street, you better believe i will be putting this baby on the street. it will be classified as a Race car therefore making the car exempt from emissions. The class I am running in requires the car to be driven 20 miles before actual racing begins. So the car can and will be drivin on the street without the problems of emissions. One of many loop holes that you can go into with a car that probably wont pass emissions. but anyways as the engine progresses I will keep everyone who is interested in this up to date get as much info as I can to help other people who are trying to build their engine

Last edited by shak3r; Aug 24, 2004 at 11:47 PM.
Reply
Old Aug 25, 2004 | 01:33 AM
  #12  
FbodTrek's Avatar
Supreme Member
 
Joined: Oct 2003
Posts: 1,668
Likes: 1
From: Houston
Car: 86 Berlinetta 84 MonteCL
Engine: 3.4 MPFI 3.8 229
Transmission: 700r4 T350
....a few things aren't right though. Like, the valve diameter , don't think you can take out that much material reliably. Injection isn't sequential. Displacement and RPM dictate CFM (head flow aside), I' don't think the motor would breathe that much until about 8000 RPM. And the cam profile isn't like any cam avilable for these cars (darn sure wouldn't be very streetable). I dunno, I guess Im jealous . I've been thinking of going all motor and tryig to hit 13's, Im lazy though (and poor). Gas is expensive, and a 10.5:1 CR doesn't care for 87 octane lol.
Reply
Old Aug 25, 2004 | 10:15 PM
  #13  
shak3r's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2004
Posts: 21
Likes: 0
From: Illinois
Car: 1988 Firebird
Engine: 2.8
Transmission: 700r4
Your right some of it maybe abit difficult to cherry out but I believe it can be done im just curious to as how he will turn it to a roller motor. the valve diameter will be 1.72 int 1.42 exh im pretty sure of it. The block is completely aluminum weighing in at a whole 60 pounds. lol. J/E pistons and rods (forged of course) custom forged crankshaft 4 bolt splayed main caps, the heads are cast iron for the fact that the alumiinum heads will not hold up to that kind of pressure this motor will be pushing out. full crane roller rocker typical 350 rockers, lunati will be doing the custom ground camshaft (roller) Alot of machining pretty much left I have 80% of the parts for it. Itll be able to be driven on the street but wont be a daily driver lol. itll see the streets on the nice summer nights of course ill trailer it to the track but its being designed for endurance because like i said the class im running requires you to drive the car before you race it down the strip. The motor really hasnt cost me that much ive put maybe 5k into her and have the bulk of the stuff, the rest is minor parts and typical instalaion crap ya need to have. if you put away a set amount of money per week or month for the motor wont take long to get the stuff you want. The old saying never say never. Anything can be done if you put your mind to it and work towards it. Ive been toying with this idea for awhile and finally got the wife to let me do it, alot of begging and alot of massaging in my near future lol.:hail: You can get a good set of heads for 650 brand new cast iron brand new block if you want the cast iron for 300 -350 crank for 690 thats shipping and everything, rods for 350, pistons for 300. So its not really that bad if you look at it but if you want a aluminum 2.8 block 3k is what youll pay not including shipping n handling. Welp im off to bed I have a long day at the machine shop tomorrow. We finishing the block up tomorrow and then begin assembly

Last edited by shak3r; Aug 25, 2004 at 10:17 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Cleotiz
Electronics
7
Jan 6, 2018 08:56 PM
LT1Formula
Engine/Drivetrain/Suspension Parts for Sale
20
Nov 14, 2015 12:02 AM
armybyrd
Engine/Drivetrain/Suspension Wanted
0
Aug 17, 2015 08:59 AM
GVMV
Exterior Parts for Sale
0
Aug 16, 2015 07:08 PM
1nastygta
Firebirds for Sale
2
Aug 8, 2015 07:38 PM




All times are GMT -5. The time now is 07:02 AM.