whats the best way to get the most horse power out of my 305? with breaking my wallet? just mainly things like adjustments.
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whats the best way to get the most horse power out of my 305? with breaking my wallet? just mainly things like adjustments.
it runs really good. better than we suspected after rebuilding it. i don't know if you all will beleive this but i have gotten it up to 120mph. thats good from what i have heard. the motor that was in it before was a 350 and it was torn up inside. the intake manifold had a crack so the old owner did not fix it and it screwed it up. so one of these days i will rebuild that one too. but why do you say "techinspector1 DO NOT, I repeat DO NOT spend over $50 on this lump. The 305 was Chevy's redheaded stepchild. If you want more horsepower, sell the car and buy something with a 350 in it."?whats wrong with em?:(
Did you also say you rebuilt this?
What do the heads on the broken 350 look like?
What have you got for exhaust, cam, carb, intake now on the 305?
" Speed costs money. How fast can you afford to go?"
You can prolly pick up a used running 350 for under $500. That would be the cheapest what to make the 305 go faster...replace it!
the 350 will bolt in, but if you have a single exhaust, the Y-pipe is a bit wider on a 350.
if u dont wanna spend the money, gears and nitrous sound good to me, save ur money and dump it a 350. If ur bent on making the 305 work, cam change possibly, carb, intake, distributor, tune up. In other words, it wont be cheap so start rebuilding.
the heads are just filled with crap. so were the exhaust manifolds and the intake manifold was cracked and filled too. i already know that most 305 parts are compatible with 350's or is it the other way around?
but exhaust i'm not sure. ithink that thats still stock. i have a quadra jet edelbrock carb. cam? and distributer? i'm not sure.
speed took a downward slope but it wasnt that steep. time im not sure. but gas mileage SUCKS severly what can i do to better it?
the heads are just filled with crap. so were the exhaust manifolds and the intake manifold was cracked and filled too.
-crap...as in cow manure? cabon? JB Weld? Mud? Depending on what it is(was) means it may be removeable, and you should know what it is so taht you don't get it again!
but exhaust i'm not sure. ithink that thats still stock. i have a quadra jet edelbrock carb. cam? and distributer? i'm not sure.
----before you can diagnose what is wrong with your current engine, and therefore decide what to do first, next, etc, you'll have to know what you got! -Edelbrock makes many carbs...Quadrs-Jet is a trademarked name for a Rochester made carb. So you have a spreadbore 4 barrel by edelbrock? What numbers are on it - see Streets for tath, he may be able to identify it, or check the summit or edelbrock sites. Most likely a 650 CFM carb with vac secondaries...but there are other possibilites. It may not be set up right. Did it come on teh 305 or did you move it from teh 350?
Cam...stock or aftermarket, if aftermarket then what cam? The cam is the brains of the engine - it will determine what RPM youwill make power at, and to a lesser degree what you should think about for intake, exh etc.
As to the bad MPG...check the plugs, timing, cap and rotor...does it start and run OK, idle OK, etc? If the exhaust is stock you will have cast iron 'log' style manifolds and a Y pipe and 1 tail pipe with a catalytic ocnverter in it (most likely...what car is this again? what year?)
You pulled the 350 and put in teh 305? Where'd the 305 come from (what car)?
By MPG sucks...what is sucks? 15 is OK, 20 is good. 12 is bad, (for a normally driven camaro with a 305) BUT that depends on other factors - a 4x4 truck with 4.10 gears and a load of engine blocks in teh back might get only 8, so 12 would be GOOD for that vehicle...with a 305. If youare diring it with the secondaries open on the 4bbl, or the powervalve is mis adjusted, or timing is retarded (or vac advnace inop) then you will get bad MPG.
We need MUCH more info than you are giving us!
horsepower 305 is right up there with military intelligence!!! Scrap the thing and drop in a big inch motor. The only substitute for cubic inches is more cubic inches.
ok as you all can tell i am not very fluent in motors but what i do tell ya'll is what i know i don't know that much about the engine this is my first truck i'm only 17 looking for a way to make my truck better. the crap inside the engine is removeable but not without a lot of work. it came from water getting inside it. i'ed scrap it if i had the money to get me a better one but i don't so this has to suffice the rest i really don't know about. the timing IS off a little or so i beleive because both my grandfathers build engines hotrods from scratch (no lie) and they both said so. the carb is aftermarket but we did take it off the 350 and put in on the 305 the 305 came out of an 85 van. it was the best thing running for the price. i geuss the gas mileage is good. i just didnt realize it. i get about 14 mpg give or take a few. its duel exhaust it doesn't y off the carb has 4 "holes" in it and the cam i don't know about it is an 82' chevy silverado "305". its not 4x4:( i wish it was in a way 4bbl? powervalve?i don't know what your talking about. vac advance inop?well thats all i can say for now so later!
Let see if i got this...
you have an 82 silverado pick up with teh 305 from an 85 van?
You moved the 4bbl carb from teh 350 that came in the Silverado, and put it on teh 85 305?
You know little, but you can learn. So how did you swap teh motors?
If your grand fathers build hot rods, and 'know' the timing is off, why have they not helped you set the timing?
14 MPG is not unreasonable for a pickup. The carb from teh 350 could probably used rejetted and cleaned and set up for the smaller motor.
On your distributor, there will be a silver cone shaped device sticking out the side of it, with a hose on it. this is the vacuum advance. to set timing you will need a timing light (read the directions with it or ask Grandpa) and then you disconnedt this hose to the vacuum unit, plug the hose (golf tee, screw, vice grips, etc) and then check timing with engine warmed and idleing at right speed (650 rpm most likely) in park. set timing - have grandpa help, he'll know how if he has built hot rods. you may want to advance the timing 1 or 2 degrees. DO NOT go by the specs on teh sticker under the hood of the truck - you need the specs for an 82 305 van motor!!!!!!!!!!!!!!!!!!!1
if timing is retarded that will hurt mileage.
if the carb is set up for a 350, that may hurt mileage a bit too and you will run a tad rich, not enough to foul plugs.
The gearing for a 305 is likley diff than that of a 305, so you are probably lacking in acceleration and therfore drive with your foot deeper into the gas, hurting mileage more than anything else!
If the vac advance hose is NOT hooked up right, that can hurt mileage too. you say you moved carbs...why?
streets..he says aftermakrt carb from 350 was moved to 305...
i would think TBI on trucks was late 80s item..not positive on that tho.
i would suspect cam is stock 85, and should be replaced! perhaps the 350 cam into the 305? what is mild for 350 would be more potent in a 305...cost is gaskets and time. price is knowledge, a bit lacking here.
i have to wonder howthe engine swap was acomplished when he has no clue as to exhaust, or even timing....
Are the 17 yr old ricers this far, umm, behind? no wonder their cars are s l o w and funny lookin and weird soundin'.
you see my dad helped me move the engines. no were not that far behind i just am. i have not been into motors all my life. on my carb it says the logo quadra jet. whats TBI? my dad did say that it was running rich and i didn't know what he meant. i haven't been to my grand fathers houses in a long time. they've come over but didn't feel like messing with it. Screamer, explain this more please...."i would suspect cam is stock 85, and should be replaced! perhaps the 350 cam into the 305? what is mild for 350 would be more potent in a 305...cost is gaskets and time. price is knowledge, a bit lacking here."i don't get it. during the swap, i mainly hooked up parts underneath and a few above. my dad and brother-in-law connected and timed everything. i don't think they have a hot tank. how can i change the carb settings to a 305?
OK, TBI stands for Throttle Body Injection. The cam is the shaft in the middle of the engine that opens the valves. A 350 cam is higher lift because it has to allow greater air/fuel mixture flow to the cylinders. However, the factory 305 cam from the 80s sucked. If the 350 cam is still good, change it into your 305. If your 305 is computerised, it should change the settings itself, to a point. You may have to swap the jets if they are to large. I hope thats it.
Rich/Lean - there is an optimum ratio of fule to air taht an engine needs. A bigger engine, bigger mans it pumps more air, needs more fuel. So you moved the 350 carb to the 305 and you have a carb 'expecting' to feed an engine about 12% larger than what it is feeding.
Add to that, the camshaft - it controls when teh vlaves, open, for how long and how far. An engine is a system- every part has to be designed to to produce similar results...meaning, a big cam (high lift) is used when you have the intake, carb and exhaust and heads designed to flow the air the cam is allowing in to the engine. Put THAT cam in your engine and it may run, but not very well (as in 'right' or 'efficient')
Generally speaking, everything is a compromise... you can have horsepower or fuel economy, but not lots of both. you can make lots of horsepower, but the most is made at high RPMs, not good for street use. A cam can be made for low rpm torque (good for trucks, towing and low rpm use) but if you wnat to race a Vette, you'll lose if this is your cam choice, BUT you'll be able to pull a house off it's foundation.
larger engines have larger cams - more lift and or duration (time valves are open as mesured in degrees of rotation of the engine). So a stock 350 cam in a stock 305 will improve performance overall - hore HP, more torque. Possibly more MPG..that depends on many other factors. All else being equal, if you engine makes more HP, it takes more fuel to do that. BUT if you make your engine more efficient (more HP from same size motor) then you can, in theory, use less gas pedal to drive at teh same speed so you may see better gas mileage...
You moved a motor from one vehicle to another, granted both chevy's, but different years, engines, etc. You should double check that all the vac lines are hooked up right.
Jets...the little items in a carb that control how much fuel can flow. the larger the jet (the bigger the hole in it) the more fuel can flow. The carb came from a larger engine, so it is jetted to flow more fuel than you need now. Also, teh rear end ration and or trans rations may have been a factor in jetting from teh facotry too (federal rules on emmissions and MPG are in effect here)
You know something? if (certain)people had unlimited time and unlimited money, a lot of the world would be set right. Hmmm, maybe thats what they origionally invented the welfare system for!
Folks have unlimited time and money and they fall into 3 categories...
1. Hollywood Stars - self indulgent brats, but harmless to most folk
2. Carnegie and the like, that actully do something good with their money. They are still around but less visible and usually a bit more self serving than 100 years ago
3. Dictators like saddam Insane, castro, etc. This path solves no problems and can cause quite a few!
Just remember...if the world didn't suck, we'd all fall off.
Category 2 I suppose. THIS is your museum, your depository of knowledge, where you flush your brain...wait, that ain't right is it?;)
well, bribe the guards, or where you are kept, do they call them guards or orderlies? :LOL: They must not keep you strapped down all the time, unless your punishment, i mean, treatment, is to contribute to this forum.:D
I never said i wasn't crazy, it's just the guys in the white coats haven't caught me yet:D
Also, i am, umm, between engagements, sponging off the state of PA (hey, i paid my taxes, i EARNED it) and taking car of my toddler boy. A second child is due Oct 9, and by year end i need to find gainful employment again. I will still be home 'days' as daycare for 2 rugrats is prohibiitive. Besides, hanging out with me all day will make them, umm, more interesting adults!**) Si I should still be contributing here, sorry!:eek:
I'll have to find the pics of the cars i drove back in college - they say alot about my substance abuse, err, state of mind.:whacked:
if i had a nearby fellow with a like mind (or lack there-of) and mechanical ablity the world would be a more dangerous place :LOL: I'd fit right in with those junkyard/monster garage folks. My son won't be too young for long...and kids have such great imaginations!
Adult legos anyone?:HMMM:
I could get my kid to mow the yard!!! ;)
Dave Brisco
do you know where san antonio is? well seguin is located about 30 miles east of s.a. how hard would it be to change tha cam? where are you from streets?
what do you mean by cost is gaskets and time. price is knowledge, a bit lacking here? so how do i alter the carb??? well answer these ? please and thanks for all the help ya'll have given me;)
I'm glad to see you guys are explaining & trying to help . And just to add my 2 cents,...........lanceX ... I have never seen a good 305 ( heard about them but never seen one ). If thats all you got , thats how it is (but don't wast your money on it ). just start saving for a 454 or to rebuid the 350 . And while your saving & working, ask lots of questions . Pay-ATTENTION & don't eat your books. It sucks but thats how it is sometimes . Just like these guys are saying" its not worth it", SAVE YOUR MONEY.:( and you have two ways to go , fast of efficient .
Go see your grandfather ,he's probably forgot more then you'll ever know.
Streets is in NY, I am in Pennsylvania.
Hot Tank - a large tank of casutic chemiclas that isheated to help them work better. the whole engine block, heads, etc is put in teh tank to clean off all the old grime, gunk, paint, etc.
To change a cam you will need gaskets for:
water pump, intake, timing cover, vavle covers, possibly oil pan.
you remove water pump and timing cover, valve covers and intake manifold, distribuotr and fuel pump (unless it is elec), fan shroud and alternator/AC. you then remove the lifters and push rods, timing chain. cam will slide out the front of the motor. In the truck you MAY be able to leave the rad in place, but it it easier if you remove it (the coolant is out anyway). You will need torque specs for the intake for reassembly.
To do this you will be removing the distributor, so you'll have to set the motor on TDC #1 (top dead center on #1 cylinder on teh compression stroke) BEFORE taking things apart, and make sure the motor stays there. verify this as you install the cam, dist and then again before you go to start it up. then you can check timing again.
taking hte cam out of your old 350 will be a good primer as to what you will have to do on teh 305 to put it back together.
if you can get experienced help GET IT, otherwise get a book and read it - 3 times.
He's a bit young to mow...i started on a cub cadet at about 7. Why i wasn't killed for doing donuts i'll never know...
He's almost 3...so 4 more years and he can take over. Why?
A) cheap driving lessons (i can get so close side to side in ANY vehicle i scare passengers)
B) he wants to eat, wear clothes, sleep inside:D
C) Cause i said so
D) Cause he thinks its fun (Dont YOU tell him different!)
:LOL:
E) Cause he wants a car at age 16, and this is the ONLY way I might be talked into helping him get one (yeah right. Just like on TV, he can have my car, I can get a Vette to repalce it...):3dSMILE:
OK here is a link fer upping the horse on yer 305. I also have a 305 i am putting in the nova wagon i'm buildin fer the lady. If I had the money to do these options then I would buy a 350. but if the 305 is what yer workin with and ya wanna slowly attain horse these parts can be added one or two at a time. Anyway take a look at the link. :)
http://www.goingfaster.com/spo/carcraft325hp305.html
I am in the same position in that I have a 305 in my 82GMC. Thses are the things that I have done that worked great with out breaking the bank. I call them my under 200 dollars each mods. Ecapt for the intake and Carb.
First I replaced the intake with a Wieand Stealth dual plane and Holley 600cfm vaccum secondarys.
Accel HEI. I latter added the MSD 6al locked out the Distibutor and put in the MSD Timing computor with 4 degree retard at 2500rpm.
Next a catco cat and then a Flow master mufller. I made my own exausht pipes going staight out the back. I did make my own y pie to go from a 1-2 tail pipes it is a delta shape with an internal expansion chamber then it feeds into my 2.5 inch pipes works real good for scavanging.
A home made ram air set up 15.00 dollars in parts.
These mods have really made a big difference in both the performance and gas milage. My buddy has an 80 model chevy pickup his is the standard bed mine the long bed he has a 350 . I can blow him a way going down the road he avreages 12mpg I average 17 mpg
What I am trying to say is dont blow a large chunk of cash but allso you do have a lot of potential. Allso all these mods will bolt to a 350 if you ever get one.
??????CAN SOMEONE TRANSLATE THIS??????? it makes very little sense to me! HEI? MSD 6al? catco cat? I've no clue!!
Quote:
Originally posted by billy marr
I am in the same position in that I have a 305 in my 82GMC. Thses are the things that I have done that worked great with out breaking the bank. I call them my under 200 dollars each mods. Ecapt for the intake and Carb.
First I replaced the intake with a Wieand Stealth dual plane and Holley 600cfm vaccum secondarys.
Accel HEI. I latter added the MSD 6al locked out the Distibutor and put in the MSD Timing computor with 4 degree retard at 2500rpm.
Next a catco cat and then a Flow master mufller. I made my own exausht pipes going staight out the back. I did make my own y pie to go from a 1-2 tail pipes it is a delta shape with an internal expansion chamber then it feeds into my 2.5 inch pipes works real good for scavanging.
A home made ram air set up 15.00 dollars in parts.
These mods have really made a big difference in both the performance and gas milage. My buddy has an 80 model chevy pickup his is the standard bed mine the long bed he has a 350 . I can blow him a way going down the road he avreages 12mpg I average 17 mpg
What I am trying to say is dont blow a large chunk of cash but allso you do have a lot of potential. Allso all these mods will bolt to a 350 if you ever get one.
Put yer glasses on!:LOL:Quote:
HEY JUSTIN ????? YA FERGOT TO PUT THE LINK IN THERE.....
http://www.oldengine.org/unfaq/hei.htm http://www.driveajeep.com/hei/heiinfo.htm http://www.davessmallbodyheis.com/ http://www.311s.org/tech/ignition/msd6al.html http://www.msdignition.com/1ignstre.htm http://www.sdpc2000.com/cart.asp?act...1451&pid=13240 http://www.exhaustsoundclips.com/gm.html http://www.mx3gsr.freeservers.com/catco.htm "let me know if that helps"........?:whacked:
??????CAN SOMEONE TRANSLATE THIS??????? it makes very little sense to me! HEI? MSD 6al? catco cat? I've no clue!!
- HEI - High Energy Ignition. Gm's name for electronic igition where the coil is in the distributor cap.
MSD - Multi Spark Discharge (also a company that makes ignitions). Stock ignition systems make ONE spark to fire the mixture. MSD ignitions fire multiple sparks very quickly to fire the mixture.
6AL - a model of ignition made by MSD. Go to http://www.summitracing.com and search on MSD and you will see that they make many different types of ignitions - some you can set at what RPM the ignition cuts out, etc.
catco/cat - both shortend versions of catalytic converter. installed on 99% of gasoline cars in teh USA since 1975. looks like a muffler, costs lots more. assuming a proper fule mixure is burnt, the exhaust then goes into teh cat and using catalyzers (metals, and other chemicals) the exhaust is scrubbed clean of some pollutants. IF the car is running too rich, you will smell sulphur from the exhaust (rotten eggs). Also, the cat will overheat and melt down.
NEXT!
now SCREAMER...........He is still learning................... We should help him understand, that way he will stop eating his books...........NOW EVERYbody ........back away from screamer ,...very slowly............." give him some room" ..........AND don't make eye-contact.:LOL: :LOL: :D :LOL:
I know he is still learning. I am too. Need to learn to e x t en d my reach a bit - HEY HOLD STill you tree killer you!:D:D:D
NEXT, refrers to next in line...
You got a Cracker Jack badge to go with that COP pile parts?:LOL:
Hi-po,.................:LOL: :LOL: :LOL: :LOL: get it? there we're some kids talkin about "Hi-po parts 4 they're cars & another kid told them the he new where a old 90's high-way patrol car was" :LOL: I know some, of the cops have a little diffrent set up , but, thats not what he was trying to say:LOL: It made me think of the blues bro.:3dSMILE: "I crack my self up" when will streets be back? I don't even have to type when he's around, I just sit here and LMFAO. hope he gets back soon.:)
Hows that go...half a pack of smokes, full tank of gas, sunglasses on and it;s dark outside...hit it!
Had a friend years ago had a retired Fury police car...440 motor, interesting tweaks inthe car, as in fast idle controls, and such.
chris
6 weeks for Streets?? Too short for a jail term, so the surgery might be a valid excuse.
add a 300 shot of N.O.S.:D
marksdoor what are you talking bout? keep it original. ya'll know, this sounds odd ya'll talking bout me. "ya he is still learning" and all that. but what are all those links for?:confused:
These links from Treekiller are you you to read and learn.
http://www.oldengine.org/unfaq/hei.htm http://www.driveajeep.com/hei/heiinfo.htm http://www.davessmallbodyheis.com/ http://www.311s.org/tech/ignition/msd6al.html http://www.msdignition.com/1ignstre.htm http://www.sdpc2000.com/cart.asp?ac...=1451&pid=13240 http://www.exhaustsoundclips.com/gm.html http://www.mx3gsr.freeservers.com/catco.htm "let me know if that helps"........?
These links are to Mark's truck (no, you can't drive it)
http://flashbuilder.net/users/marksdoor69/ web site
http://www.mychevytruck.com/mygallery.asp?id=3905
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dang marksdoor69! thats a nice truck! so it had a 305 in it originally? how much was the engine? well im gonna have to get a new transmission and a new rear end real soon. i can't turn my truck on with out jiggling my shifter;) j/k but lately i have to put it in neutral to start and i am also getting tired of turning the inition over many times to get my truck started in the morning. i need an electric choke i think.
Jiggling the shifter and starting in neutral is NOT the trans - you have a neutral safety switch and it is worn out or out of adjustment.
see
http://www.infodotinc.com/basae/38.htm