305 hop up

I have a 84 Camaro with a stock 305 TBI out of a 91 Caprice that I want to get a little more power out of and incress the presentation factor. I am looking at the following choices to go with the cam and headers and would like input on what may give me the best results. Or if you have any suggestions please let me know. Also I know I could put a 350 in it, but want to keep my 305.

1. Holley Stealth Ram MPFI system ( looks cool, gives me MPFI but $2,300 :eek: )
2. Weland 142 supercharger W/ Holly 700cfm carb (should make the 305 scream, $2080:HMMM: )
3. Eldelbrock Dual Quad intake w/2 500 cmf eldelbrock carbs ( looks cool, $900)
4. Eldelbrock performer intake w/ 600 cfm carb ( How much over the stock 170 hp will I get??, $400)


Thanks,

Charles:

Charles, here are some naturally-aspirated buildups of the 305 that might help, but I think the blower will be the best bang for the buck....
http://www.goingfaster.com/spo/325_h...chevrolet.html
http://www.hioutput.com/tech/343hp/343hp.html
http://www.jalopyjournal.com/forum/a...hp/t-1494.html
http://www.goingfaster.com/spo/290hp305.html
http://www.goingfaster.com/spo/carcraft325hp305.html
http://www.hioutput.com/tech/400hp/400hp.html

One of tghe first things I did with my 305 besides having it bored, was to install a edelbrock performer dual plane intake with a 600 cfm carb. Was good for an estimate 12HP. Headers,cam. etc. brought it near 290HP. I was going to put a dual quad w 2 500 cfm carbs but was told to much carb for that engine. With a small blower and a 700 cfm carb should make a big difference. Just be sure to mate a cam with the blower and keep you compression down to no more than 8 to 1 or you won't be able to have full boost levels. Maybe others have tried a blower on a 305 and could give you more info.

Yep, you need lower compression ratio using a carb with a blower, 8:1 would be just right. You don't need a lot of cam either. Something in the range of 215-220 degrees of duration @ 0.050" lift would be plenty. Blower motors also don't like a lot of overlap, so have the cam ground on 114 degree lobe centers.

My truck has the 305 with tbi, would all of these upgrades work on mine as well? Car craft has a build up that i like, (the first link that tech posted)

Also, I was told the other day about a truck that had a 350 block with 305 computer, heads, tbi, enlarged injectors. It was basically a 305 with a lot more cubes...How does this work out? It seemed to me that it was actually really impressive. Lemme know...

Quote:

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Originally posted by Hopper111
My truck has the 305 with tbi, would all of these upgrades work on mine as well? Car craft has a build up that i like, (the first link that tech posted)

Also, I was told the other day about a truck that had a 350 block with 305 computer, heads, tbi, enlarged injectors. It was basically a 305 with a lot more cubes...How does this work out? It seemed to me that it was actually really impressive. Lemme know...

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A 350 block with a 305 crank is a .......350....... Same stroke.

be ware of the computer issue with the engine and transmission. this year was computer controled and I personaly has found out the computer does not like cam changes.

Thanks,

So much info and so much to pick from:D :D

Hopper111

On the first link follow it back to the home page and it will give another hop-up stroking the 305 to a 335 and using a better TBI unit from Holley.

Thanks again, I had asked this question in another site for 3rd gen Camaros where most everyone is under 22 and never turned a wrinch:whacked: two weeks of smart a$$ remarks from them and had all the info I need here in a couple of hours:D :D

Great group of guys:D :D

Charles

300 hp from the 305 is a good number!!!plus they give the 305s away,should do well on gas untill I try to push the accelerator thru the floor!!:LOL:

n/m

bump...added more links to 305 builds

Stop please stop:D :D

So much to pick from:D so little money:mad:

Charles

Hold the phone people!! the 335 stroker motor, whats that gonna do on gas milage? I love the idea but i have to drive this puppy everyday and i dont exactly want to put my paycheck into my gas tank! Any idea on how much worse my milage will be on a 335 stroker motor as opposed to the stock 305 or a 350?

Hopper111

Not sure, will be more then the 305 but should be better then a 350. Also if you are running a carb or EFI should be the big factor. For me the Camaro is my weekend toy so gas milage is not a big factor but you may want to ask the guys that put out the stroker kit for some names of customers that you can talk to and get it from the horses mouth, hope it would not be from the other end :D




I have to decide by Saturday if I am going to go with the Holley TBI or go with a carb and drop the computer when I pick up the 305. (the guy I am getting the 305 from will sale me the computer and wireing hookup for 125) Got pros and cons each way, TBI I can keep everything under the hood but have the computer to work with, carb I can drop the computer and teach my son about carbs but may have to change the hood to a cowl or ram air hood to fit everything:confused: Just not sure whach way to go.

Charles

I go with the scooped hood anyways just because they look nice :LOL:

So what kind of horse power can i expect from the 305 bored to 335 and stroked, using a mild cam, the holley tbi setup, i want hooker headers and exhaust dumpin out under the bed.

Any suggestions on heads? Or Cam? lifters?

I'm asking for help on getting quality ingredients for a quality finely tuned torque monster.

Any help on what brand makes what good component: like who makes great rockers, who makes a great cam...ect. you get the picture.

Lemme know.

Hold off choosing a cam until you know whether you're gonna use carb or efi.

Hopper111

Check out this link:
http://www.goingfaster.com/spo/modthel03.html

They used World heads and talk about getting over 360hp.

I am going to pull the TBI on the 305 and go with a carb being I do not want to mess with putting the computer system in the Camaro But think I can get up to 340 to 350 HP when I finish.

Charles

Well, the link that i was given to goingfaster.com said that the Holley TBI setup would give better flow and power than carburation. They also said that the injection gives better milage. Ill take a look at those heads because i can get the world heads for about 150 or so each. 300 bucks for a set of assembled torquer heads is a helluva deal...whatcha think?

Still looking for help on the build up (what products i should use from the brands)

If anyone has time could you post a list of EVERY part needed to build an engine. (i.e. block, heads (also what goes on the heads), ect.)

Check this out...Tell me...could i use this build and still bore it and stroke it to gain the extra hp and torque?

http://http://www.goingfaster.com/sp...chevrolet.html

The link doesn't work. Go back to the six links I posted and tell us which one it is.

its the very first link...its the buildup that car craft did on a 305 and im wondering if i can do the build up and still bore it and stroke it?

yes

Can someone give me a list of every piece needed to build a complete running engine? Ill then take the list and check off the parts i can salvage out of my truck now. Then ill start buying the parts that i still need. Thanks!

Block, crankshaft, connecting rods, pistons, piston rings, main bearings, rod bearings, cam bearings, cam, timing chain, timing chain cover, oil pump, oil pan, oil pump pickup, oil pimp shaft, fuel pump, heads, intake, carburator, distributor, coil, plugs, plug wires, water pump, alternator, thermostat, radiator and hoses, exhaust manifolds, a lot of bolts, gasket set, lifters, push rods, rockers, valve covers, air filter, oil filter, flywheel, starter, fan, v-belts, freeze plugs, sensors, battery, harmonic ballancer, pulleys, oil, antifreeze, motor mounts

some of these parts you will need to check before you order them. Like the bearings and piston and rings. if the crank or block needs machine work or has been machined, you will have to order oversized

Quote:

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Originally posted by CEThomas
Thanks,

So much info and so much to pick from:D :D

Hopper111

On the first link follow it back to the home page and it will give another hop-up stroking the 305 to a 335 and using a better TBI unit from Holley.

Thanks again, I had asked this question in another site for 3rd gen Camaros where most everyone is under 22 and never turned a wrinch:whacked: two weeks of smart a$$ remarks from them and had all the info I need here in a couple of hours:D :D

Great group of guys:D :D

Charles

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what are you doing to get 335?
your gas milage is all based on how long you keep the pedal to the floor.:3dSMILE:

Hopper111

Are you going to use an engine that you already have or do you need to start from the ground up? I got a 91 305 with auto trans and everything on the engine yet ( AC, starter, PS pump, ect.) for $199 off E-bay:D If you have an engine I can send you my shopping list, it's a combo to the two from above. I went with everything from the TBI build except for the cam choice from the Car Craft list and I am going with the carb over the TBI. I am only going with the carb due to my 84 would need all the wiring and computer moved from a doner car into my 84 and my son wants to use a "old school carb":rolleyes:


Charles

I work at a garage so we have 305's stacked to the roof. Im going to just grab one, have the machine work done to it and then start building it back up to a complete engine in my spare time. I already have the 700r4 trans in my truck Ill just carry it over....i WOULD LOVE FOR THAT SHOPPING LIST...I'll pitch it to the guy (my girlfriend's dad) that is teaching me to build and see what he thinks...He might be able to get certain components for better prices..ect. Thanks!

OK, PM your e-mail address and I can e-mail it to you tonight. I have the part numbers and the price from the summet catalog.

Charles