WhiteIrocZ

iTrader: (3)

My car made 260 hp and 404 ft lbs today on a dynojet at Upstate F body Club's dyno day at Napalm Auto Sports in Greer, SC. The only mods to the car are MSD wires, K&N filters, and Hedman shorty's with y pipe and a dynomax super turbo muffler,and a Compucar nitrous setup with a 75 shot, it also has a stall but that would hinder horsepower instead of helping it. I thought that was pretty damn good numbers for having $500 in performance parts on this car. Graph on hand for all the non believers.

CRUSHER

Thats pretty good....but like the old saying goes.. "Nothing like a small block 350"

87IROCZCamro

but that car is a sleeper. Good job on the mods.

TheRealBlkBird

I always like when people say "its completely stock...except for", that always cracks me up.

1fastam

iTrader: (1)

please post up the sheet so i can show my son who has a gtp and doesnt believe a 305 can possibly make those #s . i like the 305, i also have an s-10 with a 350 like them both.oh and way to go great #s, later jimmy

1989GTATransAm

iTrader: (3)

Was that on the motor only?

NowTheBadNews

iTrader: (3)

So basically you made 260 by using nitrous .... So in a sense day to day you still have what a 200hp 305 ..... Or am I missing something? or did it make 260hp without spraying?

WhiteIrocZ

iTrader: (3)

Yes I was spraying. The horsepower was excellent on the gas taking power to the wheels in perspective. Think about it, a 1987 Iroc Z LB9 is rated at 190 hp at the crank from the factory. On a good day that means about 160 hp. A 100 hp gain from full exhaust, drop in K&N's, and a mere 75 shot is pretty damn good in my opinion, and probably everyone else's. Not to mention 404 ft lbs of torque at 3k rpm. Sorry it didn't meet your expectations, but it blew everyone I have told's mind.

It was hilarious to see my whole car clubs jaws drop when they saw the torque numbers. Mods costed me $500 bucks, and they all knew that and weren't expecting big numbers. My $100 wet kit, $30 purge, $35 nozzle, $50 bottle fill, $150 headers, $100 Y pipe, and $35 in plug wires. The muffler and filters were in the car when I bought it.

The first run on the dyno, the car bogged when the dyno operator sprayed it without purging, explaining the skew lines, and lower torque numbers.

Abubaca

iTrader: (3)

It's not that anyone is hatin' on you by any means, but your club is probably mostly 4th genners, (mine is) who don't appreciate what can be done with what you have. Here on TGO, we KNOW what can be done.

....but that doesn't mean it's a bad thing by any means. GREAT numbers! ....we're just harder to impress.

....You've got more than I do on the gas.....

Spitzfiya

Um a Pontiac Sunfire beat me in my 305 Firebird S/E today...It was real sad. I saw preformance mod stickers on his windows so i dunno...what a dumb car to rice up tho...common

once i get my GTA going tho...mannn

WhiteIrocZ

iTrader: (3)

They are mostly 4th gens, but they all know what a TPI will do out of the hole. I don't roll race like most of them, it takes all the skill out of racing. Its not that I don't get respect from them, its that on this board, 305's are talked about badly. I plan to stay with a TPI setup, so I just don't see the point in building a 350 with all the goodies only to bolt up TPI onto it, even the 350's weren't impressive at all to say the least. This is my daily driver, so I don't care to get terrible gas mileage or put a lot of money into performance, hence the 75 shot. By the time you go and spend the money for a nice 350 with AFR's and a nice HSR setup with all the tuning and time spent on it you could have swapped an LS1 with bolt ons, mid sized cam and a 150 shot and put down 550 hp, 621 ft lbs. just like a good friend of mine, and get 28 miles to the gallon on the highway. To each his own, and for me, I'll keep my little bore small block with pretty big potential.

BTW, took the car to the strip today to test out the recent mods and it ran a 9.09 and I backed it up with a 9.07 both at 79.8 mph. Only sprayed in 2nd both times. 1st gear off the stall spraying resulted in massive tire smoke but was worth a try. Keep in mind it has 2.73 rear gears in the car. Some DR's and a 3.42 and I am sure to see mid 8's and all that would be invested then would be around $1000.

Abubaca

iTrader: (3)

Well, ya gotta remember, the same $500 you spent on your 305 could be spent on a 350, and then once again, the 350 is faster. That's where I think a lot the negativity comes from. At the end of the day, you're better off starting with the 350. Some people don't have the option for whatever reason, and that's fine, you work with what you have.......

....but don't blame ME because I chose to buy the bigger 350.

....but regardless, 260hp isn't too shabby.

WhiteIrocZ

iTrader: (3)

Trust me, if the 305 blew up tomorrow, it would wind up at the scrapyard and I would have a 350 on the stand to build. Its just not cost effective to build a 350 TPI if you already have a good 305 like mine (uses no oil, doesn't smoke, perfect compression, etc...). If you are shooting for 400 hp, personally I wouldn't have TPI in the first place trying to put up those numbers. Trust me, I am not knocking a 350 by no means, I am a huge small block chevy fan and a 350 is definitely a better platform to start to build power with. All I am saying is that I feel that the 305 is a decent platform to make some decent power and not spend the $1500 or so to build a 350. If I had $1500 in the 305, it would outrun the majority of 350 TPI's and LT1's for that matter around this area and at the local drag strips. Granted that is with spray but I am just getting the word out that a 305 isn't a worthless motor like almost everyone portrays it to be, and that decent power and good times can be achieved relatively cheaply without that much squeeze.

jay_d

hehe my 350 makes 360 hp with the same mods.......im running a truck cam and 305 heads the only differnce in my engine and yours is the bore

Kevin84Z28

iTrader: (3)

I don't think that theres anything wrong with a 305. It's just that when these cars were introduced by GM they were inovative, modern, looked radical and a very exciting car. But the weakest point was the unimpressive 305. It was adequate but thats all, just adequate. I have a 305 with a 5 speed. I have lots of fun with it. Decent low end torque, but my wife's 4.8 ltr. (260 hp) Jeep Grand Cherokee smokes it.

Stevo

iTrader: (45)

Your named just sumed it up. lol


I guess i'm a 305 hater, i'm not that impressed.

Should have just left out the "For all you 305 haters" then i would have had no problem complimenting your car.

WhiteIrocZ

iTrader: (3)

Why wouldn't you be impressed with a 305 making 404 ft lbs with $500 in it?

360 hp with TPI Jay_D?? Now that would be impressive with a cam and the added compression from the 305 heads.

I mean I am not trying to get anything started with anyone about the 305 vs. 350 argument, the winner of that battle is obvious. But, with as little that is done to the car I was impressed with it.

And to the Jeep comment, I raced a friend of mines 07 Hemi AWD Cherokee today, and those things are stought, but I still beat it on motor. Thats ironic you brought up a Jeep.

mw66nova

iTrader: (13)

305's suck...

Daniel U

I'll say it, I'm impressed. My '84 5.0 H.O. was anythin but High Output. You probably could smoke my 5.7 with 225k miles. Mine burns 1 qt. between changes and smokes like a chimney. I'm going 6.3 with the 5.7 block after reading this:
http://www.compcams.com/Community/Ar...?ID=1737510521
I'm looking for 400bhp and be just under 3000lbs. Like said before, to each thier own! Good job on the dyno! I love sleepers.

WhiteIrocZ

iTrader: (3)

I appreciate the complements guys. BTW, sweet looking Iroc Daniel U, I was thinking about going with a similar color if I ever decided to change from white.

I did expect to get a little flamage from the hardcore 350 guys, but I honestly didn't mean to offend anyone by the thread title, its to be taken lightly.

vipershark11

iTrader: (6)

sorry if im wrong but arent dynojets rated high and not to the wheels?

WhiteIrocZ

iTrader: (3)

Power is definitely to the wheels, its not an engine dyno. I have heard that dynojets were a little higher than a mustang dyno, but I have not personally dynoed on a mustang dyno due to the fact that there arent many around this area. As far as the dyno being high, most of all of my club members that have dynoed on there current setups have dynoed higher other places. A few members went to Vengance less than 2 weeks ago and dynoed about 20 hp more. One member dynoed at PCM for Less and also dynoed more there. Another member dynoed 22 hp more at Jeff Creech's shop just a couple of days before the club dyno day...so as far as it being high, I would think not.

jay_d

hey, at least you can outrun a stock mustang...........they are 260 at the crank, and no mine doesnt have tpi im running a gas guzzling 650 holley, 305s arent bad motors, its just for most ppl its not cost effective, even in your case a 350 would have made you come out better............ok say you had 1200 dollars in your setup instead of 500 (you can buy a 300hp crate 350 for 1200) thats 300 hp at the crank with no power adder, now when you take in consideration the potentail wear and tear from nitrous on your 305, and the stock "ill make this hp all day and all night" of the 350 which do you think sounds better.The only way i can see modding a 305 for power is if these cars are worth somthing one day and the car has the matching numbers engine. I mean dont get me wrong 305s are great engines i'd rather tote a 305 on my back than ride behind a 302 ford, but a 350 is just the happy meduim for everybody

86Z

iTrader: (4)

there's nothing wrong with a 305, it's true you can make more power with a 350 with the same mod's but if you have a good 305, it takes money to build up a 350, cause lets face it, i wont put a used 350 in my car it has to be fully rebuilt, and hay while i'm there, lets add some goodies, it gets costly.

jay_d

point well taken, are those s10 wheels on your car?

WhiteIrocZ

iTrader: (3)

Ill tell you why they are worth modding, because every single part that I have purchased bolts right up to any cubic inch SBC. I wouldn't waste my time or money in a 305 only part. And that crate motor wouldn't even make 300 at the crank if that is all I purchased. Crate motors are ran on the engine dyno with an ideal intake and cab setup along with full lenth headers and most likely no mufflers, totalling another $800 round about if bought new if decided to go carbed. If I would have dumped $1200 into that particular crate 350 and bolt my TPI onto it and use all stock components with it, it would be doing good to make 250 hp at the crank with stock manifolds, cats, and muffler, along with everything else bone stock down to the paper filters. Not to mention buying injectors, spark module, knock sensor, and getting a prom burned in order to run a 350 would add a few hundred to that total. I just spent $1500 on a 350 to get outran by a 5 speed 305 with a couple bolt ons. I see what you are saying by buying the crate motor. It is definitely a better platform to build power on without nitrous, but dollar for dollar under 300hp at the wheels, it really isnt worth it to me. BTW I went down 2 fuel jets to lean the car out a little more since the a/f was around 11 to 1 and it feels much stronger on the butt dyno. That was also hurting my numbers running that rich. The wideband is reading about 12.4 to 1 now. I am thinking with a little tuning I could get away with a little more timing, but I havent logged the car on the squeeze yet so I'm not sure.

8T9 BANDIT

yeah,, gotta luv the "305 haters" there's lots of em on here. its funny when 80% of thirdgens came with 305's. anyway there's quit a few n/a 305 on here runninh in the 12's. pretty respectable in my book for a nice street car. theres a dude floating around here with am 89 formy with a lb9 and a 5speed that runs mid 12's all bolt ons. and of course it be a bit faster with the 45 more cubes. but build what u got, make it fast and powerfull. and enjoy it. thats whats important. and remeber people hp is what sells cars and impersses people. tq is really what wins races..

89305formula

iTrader: (5)

if your talking about my car i havent gotten to mid 12s yet but i did go a 12.81 at 108 last friday night with out the spray

8T9 BANDIT

no, not you. youre car is just a slow 305. j/k..lol

Codename 47

iTrader: (4)

My 400 small block makes 430 hp and 525 ft/lbs with 200 dollar stock vortec heads.

I'm still hating the 305.

8T9 BANDIT

so you run the same 1/4 time as that 305 in post #28, no wonder you still hate the 305...
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im refering to codename 47

Codename 47

iTrader: (4)

Right. But give me the budget he's on and I'll run low 10's.

My car will go mid 12's when it's tuned and 11's on nitrous. I'm having difficulties launching since I'm a bad driver

89305formula

iTrader: (5)

i have about 6 grand in the whole car including what i paid for it, i bought everything used or found good deals on stuff, and im only 19 and i live on my own and have 2 cars i have no extra money for my car

Codename 47

iTrader: (4)

My point still remains. Take a 400 short block and a 305 short block. Spend 3 grand on the top end. I bet the 400 will make more power. You can essentially do anything to a 400 that you can do to a 305 and it will make more power due to the displacement.

I'm not saying your car isn't impressive, because it is.

FormulaL98

Hey 89Formula, u need to post an in car video next time ur at the strip lol. that thing looks like it launches good. But I dont ever see any reason to not build a 305 unless u just happen to have a 350 (or better). Build what you got. My old mans 68 Z28 will rip harder than any other stock (ish) small block ive ever drivin. Granted the 302's were alot meaner than 305's but still small displacement. All that matters is that WhiteIrocZ's 305 is gonna rock many a Mustang right?? lol

Ricco

Why does everyone get so hung up about displacement (or number of cylinders for that matter)? Where i come from a 5 Litre motor is far from "small".. From what i understand, the 305 SBC has a bad bore to stroke ratio (small bore, long stroke), its not that it just provides a small overall displacement. As the guy above me wrote the 302 motors have near as damn it the same displacement but afford more power from it.

I had an Impreza Turbo before I moved over stateside and i bet it would be quicker than any car on this board over a fun country back roads bumps and twists - and guess what... Only 4 cylinders and 2 Liters!!!

So anyway, ease up on people b/c they have a 305 or a V6 or a 4 banger or whatever.. Not everyone wants to put in a used 350 or has the budget to build one.

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I think this is also the point.. The original poster didnt spend $3,000 on his 305, nor did he have it built. I'm sure if he had $3,000 to spend, he wouldn't of built the 305.


__________________________________

Fun is NOT in a straight line :-)

Codename 47

iTrader: (4)

It's easy as hell to find a 350 or 400 block and it's not that expensive. If you're going to spend money on the top end, you might as well spend a little more on the bottom end and gain some extra power from the displacement. Plus it sets you up for the future.

I just don't understand why people defend it like it's the best thing out there since sliced bread. It's not. The first thing I did when I got my car was ditch the 305 and get a better platform. After having a slow 400 with 882 heads for a summer, I upgraded.

My motor still has potential. 89305formula already has quite a lot done to his car. I would imagine he could go forced induction and see some good gains. I could simply stick a set of aftermarket heads and a cam on mine and make 500 hp.

8T9 BANDIT

i comes down to this- our cars mostly all have some kind of sbc in them. there great fast powerfull motors with lots of potential. build them up, run em, make youre car look good. and drive and enjoy. thats what this hobby is all about. fun and tire smoke. i think we all agree on that. we should all respect eachothers cars here, its the 1 main thing we all have in common.
and RICCO, saying youre imprezza would have taken any thirdgen on the borad on any twisty road is outright ridiculous..

Ricco

Why is it ridiculous exactly? You obvioulsy dont know what a twisty bumpy road is....

89305formula

iTrader: (5)

im not trying to say that the 305 is the best thing ever as soon as i have the money im building a big inch small block with afr heads and all the other goodies, i built up the drivetrain first so when i do have alot of power it will be able to hold it, i have no intentions of trying to make this 305 any faster short of going from a 150 shot to a 175-250 shot

Codename 47

iTrader: (4)

I'd go 500 shot

8T9 BANDIT

actually i do, my dd is an 97 bmw m3. indipendent suspension with a ton of work. and def outhandles most thirdgens. but i still wouldnt make that statement, considering theres lots of real road racing thirdgens on here. and others. bottom line is a statement like i cant beat any car on whatever kind of road is stupid. theres always somebody thats faster, either in the 1/4 the 1/8th or a bumpy twisty road, or a road race course. besides tuner cars suck!
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forget the shot, get an msd 6btm. and a procharger. and tinker with that.

89305formula

iTrader: (5)

maybe at the end of the season or once i have another motor ready to go into the car, my solenoids will flow a 400 shot

Ricco

Oh dear.. I think we just found the level here. And i don't even know what a "tuner car" means...

8T9 BANDIT

whatever dude, im sure youre camaro is great.

Orr89RocZ

iTrader: (20)

260whp and 404lbft isnt too bad on a 75shot. if thats a crank rated shot your looking at 200whp from a n/a 305. Although not bad, its not great either n/a 305 can put out alot more than that when built right.

L98 is around 230whp with similar mods. more like near 300whp/450lbft from a 75shot.

Hell my Bolt on L98 put down 254whp/315tq and that was very lean tune. probly had 260whp 320tq in it. I want to see what a full bolt on Lb9 can do. I dont think they will crest 230whp.

If your gonna build a 305, you might as well go all out and do cam/heads/intake stuff to make decent power cuz bolt ons will not get it done. But then gain, heads/cam bolt on 350 shoudl make more power still...so its a hard call to make. if you want more power, like most ppl, a 305 just isnt gonna do it. But there are several 12 second 305's around here, and thats pretty quick for most ppl

ryan91rs

iTrader: (1)

guys let it go!

just say okay that's good for you. lets not start a "my 305 is awesome" or "the 305 is a boat anchor" We never get anything done except pissing people off. Plus it's his ride.

Put a 350 or bigger in your ride and let him keep the 305. to each their own but we won't convince each other on only one motor. talk about a 350 L98 in a LSX website and you will get what this 305 guy is getting.

nice numbers. nice to see you are wrenching on your ride.

WhiteIrocZ

iTrader: (3)

You guys just don't get the original purpose of this whole thread. I started it because I wanted to explain what I have done to a little 305 to make some decent numbers and spend very little money in my opinion. I AM NOT BUILDING A 305, I am bolting on a few parts that make a good combo on a 305. The same results will yield higher numbers on a 350, that is undoubted. You're right, I don't have $3000 to spend on my car right now, nor would I spend $3000 on a 305. I would not waste my money on heads or an intake or any other part for a 305 unless it would benefit me with a 350 that I could potentially build at a later point.

WhiteIrocZ

iTrader: (3)

Its also not a stock TPI, nor does it get 22 mpg on the highway. It is also probably not your daily driver, atleast I hope not with a small block 400 with a 700dp Holley on it. My car and your car are on totally different levels, how could you even begin to compare them? I have not touched the top end of my car nor have I built the motor, I don't know where you got that from??? I am not claiming that the 305 is the best motor ever made, nor would it be my choice if I didn't drive it every day of the week. That is no reason to get what I can out of it for cheap. BTW, I do have a 350, actually I also have a small block 400 too, but I still got less money than it would take me to build either one of them. I don't even have as much money in my 305 as it would cost me in conversion parts to put in a 350 including injectors, ESC module, knock sensor, injectors, and a good tune. Maybe if I found those parts as cheap as I did some of the parts for the 305, but then I would be making less horsepower than I am now, it would be a bone stock L98 car, which the best of them made 245 hp at the crank. I believe that there is a certain power level where a person should ditch the 305, but have I reached that point, I SAY NO!!!!!!!!!!

Also, I believe Ricco is refering to a rally race in reference to the twisty bumpy road statement. Unless someone has an AWD third gen that is built for rally racing, I believe he is right about being able to take anyone on this board...lol.

Orr89RocZ

iTrader: (20)

quit messing around and throw some 125hp shots on that thing!