LottaBallsCamaro

I have an LO3. I want to stay with TBI and 305ci. so please dont start with that. I know it would be easier but that wouldnt be any fun or original at all.

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Pretty damn smart with cars for 17!
91 Camaro RS, 305 TBI
No mods yet...Hopefully:
Convert to dual-cat with headers and Borla catback exhaust.
Edelbrock MPFI system.
RAM air hood & Z28 wing.
Z28 cam.
ABS system.
Positraction rearend with rear disc brakes.
Rebuilt front and rearend suspension with polygraphite bushings.
Strutbrace.
Rollbar.

Tas

hmm... 4 bolt caps, forged 6.0" rods, good pistons, Fast Burn heads, solid lifter cam, 454TBI/670TBI, Edelbrock Victor Jr intake. 7000+ redline.

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-Tas
'89 Formula WS-6
[soon to be Torch Red with black hood and headlights =) ]

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz
ICQ 82881207

91Bird305

There u go, now get to work.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

El Guapo

l got the recipe you want. Stand over your car, and say the words "Unga Pandunga" over and over. Its guaranteed to give you 400 Hp and over 600 Ft/Lbs of torque! And best of all, it'll be unique. No one will guess that thats how you did it.

Do you really expect to find a cheap "bolt on" recipe for 350HP for a 305? Notice that the operative words are cheap and bolt on.

It can be done. Im sure it has. Im also sure it cost a whole heck of a lot more money than you have available. Or else we'd both be driving a 4th gen or a Corvette.

Here's some questions for you. What engine are you going to build?
a) The one in your car (no driving it for 3 or 4 months while engine being built)

b) Buy a 305 to build

c) swap in 305 to car and rebuild 305 from car

Two of the options involve buying a motor. The third involves not driving your car for a while (believe me, it would be a while). Remeber that, it'll be important later.

You mentioned fun. It all seems like fun and games till you get to that point where things dont go acording to plan. Then it gets frustrating. The fun is AFTER the buildup. Not during. Remember the time frame. As super mechanic, your build up will only take a week. Then you realize youre not Super Mechanic and it goes towards 1 month+.

Youre right. A 350HP 305 would be cool. Beat up on the big bad 350. But guess what? If I take your recipe and put it on my 350, who is going to beat up on who? Its a fact that similar mods, the bigger engine will win. "There is no replacement for displacement". Since at my local junkyard you can get a 350 w/ a 30 day warranty for $700 and a 305 for $600, doesnt it make sense to invest $100 in 45 more cubes of displacement?

Now here is what lm suggesting. Why not buy a 350, and build it. The fun factor is the same (trust me on that one) Since you're gonna have to buy an engine anyway (probably) wouldnt it be smarter to start with as big an engine as possible? (engine loyalty be damned) Just my suggestion. Its your money. Think about it.

Clayton

91Bird305

"There is no replacment for displacment"
I like that saying.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

LottaBallsCamaro

Then why dont all yall go buy a 502. At the beginning of the topic I said not to start with that stuff like yall do everytime someone talks about building up there 305's. I was wanting to know if anyones done it nd there recipe. I can build my own engine and I've access to a full shop with lifts and all that good ****. If you want to down me start your own damn topic. I plan on ****ing rebuilding it and not with just ****ing bolt ons. Achually you could do it with bolt ons. With a 200hp shot of nitrous!

------------------
Pretty damn smart with cars for 17!
91 Camaro RS, 305 TBI
No mods yet...Hopefully:
Convert to dual-cat with headers and Borla catback exhaust.
Edelbrock MPFI system.
RAM air hood & Z28 wing.
Z28 cam.
ABS system.
Positraction rearend with rear disc brakes.
Rebuilt front and rearend suspension with polygraphite bushings.
Strutbrace.
Rollbar.

[This message has been edited by LottaBallsCamaro (edited January 29, 2001).]

scauffiel

On my website I have an article done by Car Craft that has them making 325HP out of a 305 with bolt-ons. Total cost was around $1500. Throw another $2000-3000 at it in the form of a S/C and you're in there. That's probably as cheap as you're going to get, fact of life.

Steve

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Steve's Trans Am Temple

91Bird305

Was that 305 a TBI or TPI in Car Craft?

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

[This message has been edited by 91Bird305 (edited January 29, 2001).]

cobrakiller1989

iTrader: (1)

I think you would be better off jsut rebuilding your engine with some good performance parts and not shooting for the goal of 350hp, because i think your hopes and dreams may be shot $5000 down the road unless it has a power adder. You should just do all the mods to the engine that you can and get what you can out of it.

I know you said that you didnt want to hear this, but this is kind of a question that i would like to hear an answer to. Isnt a 350 cheaper to build up than a 305? Or the same price? So if your removing your engine anyway, Why not do it the right way .

91Bird305

I agree, if ur gonna pull the engine, might as well drop a 350 in it. Sell the 305 and put the money towards modding the 350 more. Sorry man, but if u want to get 350hp I guess u could do it the 305, but u wouldn't have anymore room for improvments. You would reach 350hp with the 350 with less mods then u would with the 305 and that way u could have even more room to build. Money wise, this would be the better idea if ur looking for power and are going to pull the engine.

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

TonyC

iTrader: (1)

The car craft engine was carbed, and you could easily add a 100hp shot of nitrous to it. If you wanted, you could use a carb-> TBI adapter and use a 454TBI or a Holley 670. Good Luck

Spyder

Okay here we go again, (No flames intended) but the whole 350 is better thing; yes it is but some people want to keep there 305. You make it sound like it is so hard to push that much power out of a 305 but its not. Go talk to the guys that do road racing. They have 400, 500, 600+ HP out of 305's. I will admit that some aspects of the LO3 are weak but then again, it was in a RS (for the camaro people) and not the Z-28. If you want a winning combo it is not going to be bolt on but its not that hard. In third gen's you can swap cams and swap heads with out too much effort. I know guys that could easly do it in a afternoon. Granted that other parts such as inake manifold need attention those are what make the power in these cars. Heads and cam. Inake is the next bottle neck followed by the TBI unit. You could easly do Head+Cam+Intake+TBI for well under 2,000. Crate motor is what 3,000? Anyways whats the fun it buying a crate motor? Hell for alot of us there is seasonal driving, winter is here for a reason; building motors if you want to go that route. Yes I will not deny that a 350 would make more but still 350 is not hard at all for a 305.


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--Spyder--

1992 Z-28
305 TPI, T-5, T-tops, 255-50-16 GSC's, Borla cat back, otherwise all stock

1992 Camaro RS
LO3, T-56, ported and polished heads (as if you can do more), 14X3 Open Element w/ K&N, hiflow cats (and thats it), 245/45/16 GSC, 170 stat w/ fan switch, STB, Subframe connectors, KYB's

1982 Z-28
LU5, Auto, T-tops, Bone Stock

[This message has been edited by Spyder (edited January 29, 2001).]

91Bird305

Can u link me to these 305's please. Thanks.
BTW: I just thought since he talked about pulling is 305 out of the engine bay anyways, he might as well sell it and put the money towards a 350. Cause he is gonna have the engine out, might as well put something back in with more displacment. Cause with the money in mods he spends on the 305 rebuild and modding, he could do the same to the 350 and have room left over for more improvments in the future.
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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

[This message has been edited by 91Bird305 (edited January 29, 2001).]

Spyder

Go up to B.I.R. in MN, go talk to anyone that does road racing. Hell the local 1/2 oval guys running hobby stock have to run 305's and you see pulls from those guys in 400's all day long. Then again there are 350's with two barrel's that run 475-525. Back up your point, yes if you are going to pull a motor from the car yes, 350 okay; but you can do head and cam with the motor still in the car. Done it several times in third gens.

91Bird305

Yeah ok man.
But this guy isn't going to do just head and cam work. He wants to pull the motor out and rebuild it I guess. And I am on the phone now dialing B.I.R. LoL. Calm down dude. BTW: What kind of injection systems are they running on them high hp 305's? Is it TBI?

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Eric Natzke
91 Firebird 305 TBI
"It Ain't Stock"
http://members.aol.com/j007golden/91firebird.html
For info on certain parts or mods go to the site below
http://members.aol.com/j007golden/modeval.html

[This message has been edited by 91Bird305 (edited January 29, 2001).]

lars92RS

Dude, I know your feelings I too am building a 305 for 350+ HP. N/A no power adders and TBI TOO!!! I did a complete rebuild on mine. Here's my recipe:
Hypereutectic pistons, at least 10:1, but no higher than 11:1. Get a good set of heads, Vortecs flow as much as any aftermarket head and cost 1/3 as much, have them milled .045. Put about a 222*/230* @ .050 .470/.490 cam in it. Then Get a Vic Jr intake or Perf RPM. Adapt a 670 TBI to it. Get a full exhaust 1-5/8" headers, and 3" Catback, prolly will need high flow cat for some back pressure. Now go to the prom board and read up. Learn to do custom proms, Don't ask questions right away do searches for your questions, chances are they have already been asked and answered. After you have this completed you will have learned enough to know what a 305 likes and what it needs to run harder and faster than the next guy. Also dont forget the ignition, MSD 6 digital seems to be the wave of the future. I'm with you all the way man!!! 305's RULE!!! Email me with q's

Later,
Lars

Spyder

No all those guys are running a carb set up but 670CFM TBI is in the area of a 600 CFM Edelborck. I don't remember who had it on here but it was a nice dual TBI setup so if you wanted 1,000+ CFM with TBI it is something that you can do. If you want there is currently another post going on about high HP 305's some guy has a 9 second 305, here read about it
https://www.thirdgen.org/messgboard/...ML/000420.html

Spyder

I agree on one side I do agree that if you swap pistons that leaving the head would be a good idea but then again, the swirl port heads on the LO3 are a major bad spot on the car. If you want high HP that would be a huge bottle neck.

snflupigus

good job of managing your own post lotsaballs.

Im glad to see it went back to 305 talk.

I personally like a challange. I think thats what hot rodding is all about. Its what racing is all about. thats why they have classes and restrictor plates and all kinds of stuff like that. I want to know what the best possible combo is for a 305. i want to see how much i can squeeze out of it. even if it costs more than a 350 with more power. Hes right, if you want a best for 5k. then get the 502. i want to have fun, playing with my setup. when im 50. ill get the 502. then ill have had my fun with setups, and be more results oriented, instead of enjoying the process of making power.

cobrakiller1989

iTrader: (1)

Do you plan on using this as your daily driver? I think if you squeeze every ounce out of that little engine, then its not going to be too street friendly. If you are going to use it on a weekend warrior, then i say go ahead and have fun. And keep us updated.

Since you do want to get all of the power you can, i would start with a good exhaust like you mentioned in your sig. Then, I would get a good intake(single plane carb intake with TBI adapter seems to be what works good). Also, I would upgrade to a bigger TBI unit. Now that you have all of that done then you can do the big stuff like heads and cam, higher compression pistons... Or, If you canafford to have your car off of the road then jsut pull the engine and do it all at once.

LottaBallsCamaro

Thank yall for getting back on 305's!!! You know if it was carbed though none of this stuff would happen!

Tas

Snyper, I was refering to leaving the 350 Vortec heads alone. The L03 heads should be the 4th thing to go after the stock air cleaner, intake manifold, and exaust.

By using pop up pistons you can just bolt the 350 heads to the 305. But of course anyone doing this should weigh the cost of modifying the L31 heads vs. pop up pistons. I haven't, so I can't say for sure.

From a simplicity standpoint, milling this that and the other thing might slow you down if you don't have much experiance.

snflupigus

cost vs benefit to. is it worth spending $ getting the pistons, so that you dont have to ruin the heads if you ever do want to put em on a 350.

thats saving money there too. so spend money to be able to use heads on something other than a 305. hmmm, i would like to see a good break down of that. i dont think i have a jegs handy