HP Gains with these mods and TBI
HP Gains with these mods and TBI
oh....heeeeeeeerre we go
1. Vortec heads shaved .045
2. Cam - What grind for street use, and gas milage?
3. Intake - any vortec intake
4. TBI unit - Ultimate TBI
5. I have headers....there Hooker Supercomp Shorties, but I dont have a fuffin y-pipe so I have to have one made.
6. custom 3" from y-pipe to cat...to back.
thats all for engine mods
then I would go with a posi disk rear....with like 3.4x's....and an aluminum driveshaft....
All of this is to go on my 45,000 mile old (origional) Lo3. Is this gunna make a lil power? I have machine shop connections, and can get parts really cheap so putting in a 350 isnt really the option because...well just beacuse. Oh yeah....and a chip....a big nasty fat chip to get this all to work.
Phil-
1. Vortec heads shaved .045
2. Cam - What grind for street use, and gas milage?
3. Intake - any vortec intake
4. TBI unit - Ultimate TBI

5. I have headers....there Hooker Supercomp Shorties, but I dont have a fuffin y-pipe so I have to have one made.
6. custom 3" from y-pipe to cat...to back.
thats all for engine mods
then I would go with a posi disk rear....with like 3.4x's....and an aluminum driveshaft....
All of this is to go on my 45,000 mile old (origional) Lo3. Is this gunna make a lil power? I have machine shop connections, and can get parts really cheap so putting in a 350 isnt really the option because...well just beacuse. Oh yeah....and a chip....a big nasty fat chip to get this all to work.
Phil-
I estimate a hp gain from 50-100hp depending how well everything comes together. I've seen stock vortec heads on a LG4 run almost 100mph in the 1/4 so I believe the potential is there.
Keep your cam conservative. Talk with the cam manufacturers.
Definitely plan on a custom chip.
Keep your cam conservative. Talk with the cam manufacturers.
Definitely plan on a custom chip.
Ok....as for exact heads. I will be using L31's that are already made for pre 86 intakes, shaved .045-.055 ( compression woooooohooooooo) Torker II intake for even fuel dispersion. Turbo city tbi adapter, Ultimate TBI, open element air cleaner, and probably a comp xtreme energy 256 or 262 grind cam. Hopefuly some serious power, streetablility, and ok gas milage *crossing fingers* maybe 20+
Phil-
------------------
91 RS with an auto TBI 305. Metallic Maui Blue, Iroc nose and hood 40,000 on the ticker. No engine mods as of yet. I want a turbo....bad.
Phil-
------------------
91 RS with an auto TBI 305. Metallic Maui Blue, Iroc nose and hood 40,000 on the ticker. No engine mods as of yet. I want a turbo....bad.
edelbrock makes a Victor intake for those vortec heads. you need to see if the torker2 can be port matched to the heads. the intake ports are supposed to be pretty high.
------------------
-Tas
'89 Formula WS-6
[soon to be Performace Red =) ]
305, TBI, auto, 14x3 chrome flat based open element with K&N, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....
Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz
ICQ 82881207
------------------
-Tas
'89 Formula WS-6
[soon to be Performace Red =) ]
305, TBI, auto, 14x3 chrome flat based open element with K&N, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....
Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz
ICQ 82881207
comp cams and crane cams both have off the shelf pieces that would be able to take advantage of those heads. you may want to get a set of 350 injectors while you are at it, the stockers may lean ya out too much.
lata
tim
------------------
91 Camaro RS-LO3,Auto.
14.390 @ 94.99mph
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall), 36mm Front 25mm Rear Sway Bars, Eibach Pro Kit Springs, Bilstein Shocks and Struts, Steve Spohn Rear Rig( all rod ends), Poly Front Bushings, Baer Track Kit Front Brakes W/ Baer Disc Rears, 17x9 4th Gen SS Wheels, Ported TB, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
lata
tim
------------------
91 Camaro RS-LO3,Auto.
14.390 @ 94.99mph
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall), 36mm Front 25mm Rear Sway Bars, Eibach Pro Kit Springs, Bilstein Shocks and Struts, Steve Spohn Rear Rig( all rod ends), Poly Front Bushings, Baer Track Kit Front Brakes W/ Baer Disc Rears, 17x9 4th Gen SS Wheels, Ported TB, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
Cool. Its lookin like for under a grand and a week or two of downtime I'll be making some serious power. Hopefully in the neighborhood of 260-300. I'm still a little schetchy on the intake. I really need something that will fit under my hood, but in the same right will bolt to my vortec heads, which by the way I decided to go with the straight l31's....not the ones made for pre 86 manifolds. Also would it be in my best interest to go with a single plane intake, or a dual plane? If dual plane seems to work I can get the heads...haskets...rockers.....about everything i need for 700 bucks. Then all that leaves in the cam....and the y-pipe for my headers. I just got a 3.42 posi disk rear and aluminum driveshaft from Spillmans (local salvage yard) for a pretty good price (under 100). So that'll be going in before long. Its just kind of a wiznitch to work on my car. The guy before me put a 2" belltech kit in it. Oh well....maybe someone will make a low profile floor jack hehehehe. Anyways....off to sell my mustang....need the cash.
Phil-
------------------
91 RS with an auto TBI 305. Metallic Maui Blue, Iroc nose and hood 40,000 on the ticker. No engine mods as of yet. I want a turbo....bad.
Phil-
------------------
91 RS with an auto TBI 305. Metallic Maui Blue, Iroc nose and hood 40,000 on the ticker. No engine mods as of yet. I want a turbo....bad.
Thread
Thread Starter
Forum
Replies
Last Post
Glowsock
Tech / General Engine
2
Sep 11, 2015 11:09 PM





