Got to thinking about cost effective hop ups of an LG4. Sure, you could go the cam, heads, intake, headers, route.....

But say you just bought the car, it runs fine, you don't want to tear the engine all down. But you need some power, so you simply save up and shell out for a roots supercharger, the Weiand 144 (I think), about 1400 bucks. Slap it on the stock engine, re-tune the carb, maybe back the timing off a bit, and you're ready to rock and roll.

Sure, you won't get stellar gains with the stock heads/cam/exhaust, but it'll be worthwhile, and if the engine blows after a while, then you'll be ready for a build up with better parts!

Soooo, tell me why it won't work

 

There could be better gains for $1400 on a stock LG4.

 

Don't mod your 305. Its a waste of money. There is a guy who bought a blower on his 305 and it ran a fast time of around mid 14's. Complete waste of money and they have no potential in the long run. Save ur money and get a better engine to drop in there. You will end up spending the same amount.

 

Conv389drv I am not saying this is the route you should go because to get reliable power gains out of the blower you have to do more than the supercharger itself no matter what size of engine...... lol 91Bird305 if you think you can't have a very fast 305 you are wrong there are a couple of them on this board!

 

Cool. How fast? Couple of fast 305's out of how many and after how much money?

 

Its not impossible to go 12's or even 11's with a 305 thats built right but I bet with the same money and good parts selection you could go twice as fast with a bigger motor. Hey, some guys love modding 305's its something different and its more of a challenge - more power to 'em. But as said above, why spend $1400 for such a small power gain? If you wanna go power-adder why not nitrous? It'll be very cheap and wont put a constant strain on your poor little motor.

 

Its not impossible to go 12's or even 11's with a 305 thats built right but I bet with the same money and good parts selection you could go twice as fast with a bigger motor. Hey, some guys love modding 305's its something different and its more of a challenge - more power to 'em. But as said above, why spend $1400 for such a small power gain? If you wanna go power-adder why not nitrous? It'll be very cheap and wont put a constant strain on your poor little motor.

 

absolutly great idea.


because if you have the cash right then for the blower... you'll go faster.... you can drive around for a bit. and already have a nice pickup of power...


then in a lil bit, when you do put headers on, and a exhaust, you'll see a even larger gain...


and then when you get a 350 or whatever, you build a nice mild 327/350/383/400.... bolt it on.....and hit low 12s with it.... easily.


:lala:



and if you ever change your mind, you can sell it back on ebay for only a couple hund less then what you paid for it new.

 

Exactly what I am saying. In the long run, it is not benefical.

 

Bet Willie will disagree with ya..

But what the hay... I've got twin roots on a 305.. BW

 

Can you bolt it onto a properly built 350 later? Yes.

Therefore, not a bad idea, unless your 305 is mechanically hurt already (more power will jsut kill it quicker, regardless of how you make that power). You should get about a 60-70 horse bump on a stock LG-4 right from the get-go, plus bagfulls of bottom end torque. 80-100HP when you slap some headers and a decent 3" exhaust on it in place of the stock pea-shooter exhaust. This upgraded exhaust system can also be re-used on an even stronger 350 later.

Main thing is not to buy parts that just get thrown out when you build up the motor you REALLY want later.

Just remember to factor in the cost of a new 4" cowl hood to fit the blower under. They call it an "underhood blower." Unless you got a 57 Chevy or something else with a LOT of hood room it won't come close to fitting under the stock sheetmetal.

 

Twin Roots and u run what 1/4 mile time?

 

Low 14's on a junk motor, on street tires.

Looking for 12's, with newer roller 305. Which is fine with me considering the $1500 spent doing it. Thats blowers, intake and engine and all the bits I fabbed to do it.. BW

 

Tough call. I would never think about running a blower on that motor without at least four driven injectors and an ability to remap it. Thing is once you buy it and put it on you'll have it and it can always put it on a new engine. Nothing cures the speed bug but that huffer will increase your demand and eat your wallet and soon you'll be seeing the whole daily driver argument that was a dominent yet false theme in the 90's never meant jack. After all not all arguments are purely arguable from only one angle.

 

------------------------
Main thing is not to buy parts that just get thrown out when you build up the motor you REALLY want later.
--------------------------



That's pretty much what I was thinking. If you're building up a 305, some of the stuff you use will be specifically for a 305, and won't switch over well to a 350 when the 305 finally blows up.

Heads for a 350 give a low compression ratio on a 305. Many aftermarket heads have valves too big for a 305. If you mill a 350 head down to 305 chamber cc, then it'll be too much compression when you go to a 350.

Also, a cam for a 305 combo won't be optimal for a 350 combo. Exhaust and intake should work the same for either, but with a roots blower the intake manifold is integral anyway.

 

305's are fine if you aren't looking for a race car. Its pretty easy to hit low 14's with a 305. I talk to a guy on here who goes 14.7s on a bone stock lo3. All he has is 1.6 rockers, exhaust, and suspension mods. I think thats pretty impressive. If he would get a decent cam and heads hed probably hit a high 13.

That fast enough for most people.

 

Wow, I can't believe how much there is on here. Hmm, bone stock LO3 going 14.7 in the 1/4 mile huh? BWHAHAHA. Yeah right, LOL. I am holding the BS flag so high right now its ridiculous. Looks like the TBI board hasn't changed since I left it. It is NOT easy to make a 305 TBI car fast, AT ALL so don't believe this guy. I have been there and done it. Not worth a DIME. Fastest LO3 I ever saw was Joe's Nitrous LO3 that ran a 13 and he had a lot done to it including nitrous. Wow, 13's. Even Joe gave up on the 305. Everyone does. I see it all the time "I want to make my 305 a sleeper!" 2 years later its still slow and they give up on it. Do yourself a favor and don't mod that 305. My buddy Brad just bought a 92 Camaro RS. This kid is the cheapest kid I know and yet he found a way to build a budget 350 in a winters time and actually put down some nice numbers! All on a cheap *** budget and he goes faster then he ever would have in his 305 if he would have put that money into it. I am just doing as the saying goes "Friends don't let friends mod 305's"

 

91 ... 14.7 is not THAT unbeleivable, bone freakin stock, i ran 15.5, headers, and exaust, i could probably hit very very low 15 or high 14's. now if my motor had 150k less miles on it, and 1.6 rockers, i BET you i could go 14.7. especialy if i could cut something better than a 2.3sec 60'.

personaly , i like the idea of the roots on his car, as long as he is willing to accept the chance that it may not last long at all, i bet it will be a blast to drive. and all of the roots blown torque, will make it all that much more so.

 

Sorry, 14.7 with a LO3 motor with just rockers and a suspension. No.....

 

He has LCA's, panhard rod, springs, shocks struts, 3.73s with zexel torsion posi, 1.6 rocker arms, open element, full exhaust.

14.7 sounds about right to me. Since he has gotten a probuilt 700r4 with a 9'' 2500 stall. He may be alittle faster now.

 

Just because you can't do it, doesn't mean it can't be done.

 

LoL ok you die hard 305ers. Mod the hell out of your 305's. Spend lots of money on them and then come on the board a year later and post your AWESOME times. It never happens. I have been on this board a LONG time and on the TBI board for awhile and I have seen this come and go. Die hard 305 "sleeper" guys run into one trouble after another trying to get 305's to run with the big dogs. So I say Good luck to all of you and come back in a year and post your incrediable 305 sleepr times. They would be the first I have ever seen.

 

no one ever said that a 305 is going to play with the big cubes. we are not stupid. BUT, this thread is not about that. you said 14.7 on TBI not doable, it is. this thread is not even about TBI.

i'm not going to continue with an offtopic argument with you. if you have a problem with me or what i said, PM me or better yet, come and race my "lo3". if you have something on topic to contribute, then lets see you bring the tech. so far all you have said is to put down what others have said and done. what have you done?

 

I am by no means a 305 die-hard. I ditched my lo3 over a year ago. Ditched TBI to. I'm just saying you can run decent times with a 305 if you do it right. 305 TPI 5 speed cars tend to run pretty good.

I would put the money into full exhaust, intake, carb, and suspension instead of a roots blower on a stock lg4. You'd probably see just as much gain plus it will help later down the road if you decide to get a better motor. A roots blower would also help but you know a new motor won't run much better with stock lg4 stuff on it.

Nitrous would definetly be cheaper and give you just as much gain.

 

Wrong. A STOCK 305 TBI (LO3) will not run a 14.7. No it won't. Sorry. Show me the time slip or the video and I will believe you but it won't be a stock LO3.

If I was you guy with the LG4 and you HAVE to put money into your 305 from some *** forsaken reason then spray it. Its cheap and you will get to where u wanna go I guess. But if you were smart, you wouldn't spend a dime on it, let alone all this money. Take some advice from a guy who has seen it happen over and over again by different people.

 

LoL, kid, you don't want what I got. I have been around the block a lot more then you. I have done the 305 thing. Tell ya what though, if you want a piece of the new motor, its just a V6. Think you could beat a V6?

 

the motor in question was not 'stock'

read what i f***ing wrote. with 1.6 rockers, and exaust 14.7 is not some unobtanable number, like you stated in several of your posts.

 

Hey eric why dont you chil out a little bit. Your attitude isnt winning anyone over. It looks like you are posting for your own amusement. If thats the case, STOP IT NOW. Your not adding anything to the post so chill.

You have been warned. If you continue, Ill turn you into the admins and they will do something about it.

 

Big deal... So your swapping to a TTA style driveline.. So what. Turbo sixes are easy.. How fast do you want to go? Just pick your ET and select your favorite copy of the dozens that have been there before. When you have the skills to do what you want, why follow in someone eles's path.. Personally, I'm having a blast beating the crap out of my 305. When/if it goes bang, I'll build something else. A turboed North * could be entertaining.... BW

 

huh, not an L03, but my crossfire 305 was TBI (actually, rather similar, just split the 2 bores across 2 TB's, they're the same size…), ran a best run of a 13.8 with a stock long block (everything before and after the heads was pretty heavily tweaked though). It ran mid 14's with 2 intake lobes wiped out...

I see no good reason why an L03 couldn't be made to run similar times.

 

i've posted it before, i am running low 14's with the stock swirl port heads, on a shortblock with 180k miles on it. stock intake manifold, and stock TBI unit.

 

the problem with teh north * is that it's pretty much designed to be disposable. It's not easily rebuildable, no room for easy overbores and common parts.

Lately I've been on a caddy 472/500 kick The one that we're swapping into the '66 leamans (funny thing, that big boat is light, right around 3K, maybe 3300 fully loaded) isn't even done and we're already considering power adders. My friend that owns the car wants to run low 11's/high 10's with 2.56 gears

 

hehe, i've been eyeing the LQ9 myself. a re-boreable LS1, with a few more cubes, and better flowing heads, really peaks my fancy.

 

We did a 500 Caddy into a buddies 73 Monte about 20 years ago..

Man that thing was fun.. We flipped the pan and extended the pickup. Kept having problems with hitting the oil pump housing at full lock, finally swapped to different offset wheels and tires.

Had sparkers in the 4" rear pipes, would shoot nice 10-15 foot flames.

BW

 

Your right, turbo 6 swaps are so dumb and easy. I will put my motor against your dream turbo caddy north * anyday.

Like I said, mod the hell out of ur 305 LG4, throw a roots blower on it and see what happens. Good luck buddy. Weeeeeeeeeeeeeee, LoL. :lala:

 

If I really gave a crap about ET's, I'd just drop a 468 BB or 500 Caddy in, maybe a 150-200 shot, and watch you whine about not having enuf boost, cubic inches, etc...

Guess Willie's just wasting $$ with his splayed bolt 305.

Running 10's in a Malibu ain't all that hard. Like your turbo six swap... lots of combo's to choose from. BW

 

I don't much care about who I can or can't beat at the track. I'm just pondering what is the easiest, most cost effective way to have fun with a 305 equipped car.

I've spent lots of thought about going the heads/cam/etc. route, but there seem to be very few choices for performance heads on a 305 that aren't a big compromise in some way.

Anyway, the whole idea here is just to mod the 305 for kicks and see what you can get away with. If it explodes, then fine, time for a bigger engine.

If I just wanted a double throw-down drag car, I'd put in a crate 502 motor, THEN add a blower onto that

 

Would a, could a, should a saturn boy. "if i wanted to I could do this and this" lol. Sound like a rycer after loosing. I have already been warned so I will stop. And I never run out of boost.

 

LOL.. rycer. Rather than discuss the topic, you rather toss insults.

Got any timeslips with that new engine yet? Woulda, coulda, shoulda, nadda?

I don't know why your so sour about 305's other than maybe you couldn't get yours to run or that you think your some hot shot now that you've gone with a turbo 6.

The thread was about adding a roots blower to a 305. My own demons said two would be good. I've got nothing against a turbo 6, a turbo 6 is nice, a buddies got a 4.1 pushing the same HP he used to have, at half the boost (~15 psi) from his old 3.8.

Your the one who brought up ET's..

If ET was the topic.. then I'd agree, better engines to use than a typical 305, and better chassis to use than a typical thirdgen F-body. But it's not. If the thread starter wants to add a roots, go for it. Run the dog snot out of it. I'm sure hes well aware that a 350 is a better platform than his 305, but its what hes got.

If ET's were my priority I would use a BB most likely in the Malibu since I already have a Turbo 400 and 9", a simple weekend swap... Or heaven forbid sell the Malibu, buy an old 80's Fox chassis and run with a 351W. BTDT with my old 82 Capri years ago. Many ways to skin a cat.

I've just decided not to be a herd animal and follow my own path.. whether it works or not.. After all, thats what rodding cars is about. BW

 

hey 91 bird, ever heard of Preston Smith? He was running 9's 6 years ago with a factory 305 mill , some extrude honed Trick flow heads and a vortech T-Trim blower.

He has switched his combo around since then but the fact remains, it was a factory 305 block, using bolt on pieces and it ran 9's.

 

I am glad some guy went 9's on a 305 but I am sure it wasn't just "bolt on" parts. Everything "bolts on". And it probably wasn't ur everyday chassis either.

Like I already said in the post above. I am done talking about the 305. Lets see you guys put up or shut up. I have only seen ONE fast 305 on here and that was a camaro from Ill. Its probably that ***** guy you people are talking about. 1 fast 305 out of everyone on here over the years talking about making a fast one. I am just sayin, I have been on this board since 99 and I have seen LOTS of people TALK about making their 305 a sleeper but I have NEVER seen anyone actually go thru with it. They always go with a different engine in the long run. :shrug: I am not just basing this on my 305 experience but on others that I have seen come and go on the TBI board as well. But prove me wrong by making one and then I will be impressed.

And the only reason I brought up my current setup is because I got called out. So don't think I am bragging.

So go ahead and tell that guy to throw a roots blower on a stock LG4 and see what happens.

 

Heh, wonderful conversation here… we could throw out about half of what's been posted here in the last couple of days (all from one person), and loose abslolutly no technical content or anything at all interesting.

Hey Saturn, do you know anyone that has any hard numbers on the big caddies (as in what they'll take before they fly apart)? Right now it's really looking like the thing will _need_ about a 150-250hp shot to make us happy, but I'm not sure what that thing will realistically tolerate (assuming good tuning/no bs).

Heh… I'm next to positive that when I kill one of the 350's in one of my vehicles now I'm actually going to search out a 305 to build up. There are enough advantages there that I'm willing to loose the cubes, and I just can't resist taking pot shots at some of the dumb **** that's been said about them, mostly here...

 

What are the many advantages of a 305 over a 350?

Get to work on that sweet 305 build up, I can't wait to see it.

 

I think tossing a blower on a 305 is a great idea personally.

It's not too expensive, and you get more power.

Ignore the 350 lovers IMO. Yeah, 350's are great. So is a ZZ572

 

Biggest advantage: He already has one

What is the problem with tossing on a roots blower onto an engine he already has? I don't recall him saying anything about how he was going to pour tons of money into a 305, and a blower can be reused on another engine.

Don't get banned. This is a cool forum.

 

Actually, I don't own a 305 right now (my crossfire did have one, I parted it out and got rid of it a few months ago), I currently own my L98, an LO5 (350 tbi), an f-body LT1 and a b-body LT1. All 350's.

As far as advantages I've posted tons on this before. Do a search.

As far as when it's going to happen, well, either when I wear one of the 350's out or do something dumb and blow it up… since I've never blown up an engine by mistake that could be a while.

 

Hmm, many advantages huh? Ok, if u say so. Go 305's :lala:

 

So, gone to the College of Humanities and Social & Behavioral Sciences? Guess you didn't learn.

Outlaw91 in Battlefield 1942

91Bird305 at /www.fishprofiles.com

J007golden@aol.com AKA Eric Natzke

http://www.hypertech-inc.com/customer.html

Hypertech huh? *laughs* Read our Prom forum

 

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um, I am confused. Did u need to know some stuff on me? Do u wanna get to know me better? If so, you could of just asked. LOL. But I don't swing that way ok bud? I am currently single and I like long walks on the beach and a good book, hahaha. Do some more google.com searches on me and see what else comes up. Hahaha