quote:
--------------------------------------------------------------------------------
Originally posted by Teal91rs
Alright ive went shoping on jegs and ive come up with a combo.
"Holley 670 tbi
World Products s/r torquer 305 heads
Flowmaster 3' exaust
Hooker Supercomp shortie headers
Edelbrock Performer Manifolds - Power Package
Easton Posi Rear 3.73 gears
Bfg Drag Radials
B&M Coverter Total:$3016.88 "
pluged it into a desktop dyno and it said i could get a solid 343 hp and 356 footpounds of torque. lol and yes i know yall think desktop dyno is a little off. has anyone read a newer hot rod the one with the gan turenos on the front they got the cars from the movie "starsky and hutch". yeah and well they did a test in there and they found it was only about 2hp off the real dyno sheat not bad eh? and i feel with this set up and many many many hours of tuneing and worknig my *** off for parts i could run a soild mid to low 13 whats your opinions?
--------------------------------------------------------------------------------

Ive been planing that set up and 3,000 is a little steep do you think it would be worth it to do all of that or just buy a 350 and slap a nice tbi on top but ive bene thinkin it corst a good 3k just for a 350 when thats covers the whole deal well besides the suspension and stuf but do you think it will run a soil mid to high mabey even a low 13?

 

nothing wrong with a used intake manifold...
and that holley670 is junk. I hate mine.
get a 454 TBI instead, because you dont have to ghettorig the linkages to fit.

Holley 670.

 

its a 454 and thats a 670 i think i would like more cfm of air and bigger injectors rater than less cfm and fuel. i think ghetto rigging wires will be a little easyer than it seems i mean building an engine is soposed to be hard. but if the 454 is a better thorttle body what are its benfits and how is it better? one way its better is the fricken price! *edit* after playing with cams and such in the desktop dyno (btw which i jsut saw on horsepower tv) said the vortechs would give me more power with a peek torque fo 4500rpm and that doesnt bother me much considering they are half the cost of the torquers!

 

Changing the displacement on these cars should be the last thing you consider. For now take that money and build your suspesnion, rear end, fuel system, chip burning stuff and other stuff that will need to be on your car to handle more power. You will still have to modify a 454 unit to work. You will have to convert the IAC and also fab the linkage a bit. Both aren't that hard to do. A 350 swap in place of a 305TBI may actually be slower if you do now prepare the rest of the car.

 

hmm i see that but i just spent like 1-2k on my suspesnion andi have gained nothing on the wuater mile thats why i think if i do all the bolt ons for the engine then get the torue converted and do the rear end i will get good gains then i can stiffen up the car and get even more but im a kid i dont have 6 or 7 thousand dollars to make this car run 13s i wana make it run at least mid 13s on a 4 thousands dollar max budget i dont think it worth it to speed all that and run a fricken 14.0 i mean thats just sad. if that 3000 dollars wolnt get me into the atleast high 13's i really feel tbi isnt worth iti mean shure ill run 35mpg but ill get beat by all tpi ls1 and even some imports why not just by a 350 short block and take that 3k and buld that with a tranny and rear and ill run a low 13? when do all this when i could go buy that little 260hp 350 torque gm crate engine for 1200? i mean you get a intake mainfold nice headers and a tbi and it hould run a good 13 i mean come on im doubting this injection systems if it cant take a 305 atleast to the 14's! all this chip tuneing i dont wana spend a whoel weekend tuneing some computer then go to the track after speeding 3k and running a 15 i mena that will just makem e sell the car to the junkyard and tak back my bolt ons i mena i love my car i jsut adore it but how can you love something that runs below what some factory cars run? sorry to rant but if you cant take a 305 tbi to the 13's i think some tpi or carb would do this great looking car some justice it looks mean but runs a 14.9 lol thats just not fair anywho but i do feel strongly as doesm y pops that will all thoes bolt ons and computer tuneing that car will run atleast a 13.5 mabey lower and if not these 305s truely do suck.. and i dont really wana rip the damn motor outa the cari feel theres on need for it what remedys would this ahve and no the sticky really deosnt help me i dont wana run a 14 i want to have a street perfromer and nothave to rip the car apartbto get there please can anyone help?

 

With a decent cam and good tuning that setup you listed above should easily run 13's. If you're running a 14.9 right now that's not bad at all; you need to understand that the TBI engines got the worst heads, worst cam, and smallest, most restrictive exhaust.

If you tune that setup properly you'll be very happy with the results.

 

yeha i pluged in a batch of new parts on desktop dyno a vortech setup cuase its cheeper andi found the formula of what i want ok hp numbers but almost 300 footpounds torque off the line! thanks for tellin me ive herd all you need is chip tuneing but ive found out over time 305s are good engines. its just what the put on them ... even though most people think these dyno programs are a little generous horsepower tv and hotrod have both proved they are right oh yeah so have 2 guys garge i think its a great tool with a converter posi and tires on this new vortech set up ill be at about 372 hp @ 6000 and 370 @ 4500 and if i tune it right ill get some good gass mileage. i figure with a posi tires torque converter and alum driveshaft ill be puttin the power on the ground but i gotta stiffen the car up ill be runnin good 13s gota get that desktop drag strip hotrod said it was i think 1 or 2 tenths off.. the only problem i ahve is these vortechs arnt they a little complex? but i found they have a vortech intake mainfold but tis explensive 350 some odd dollars *** thats expensive it kills the whole price cutting idea and doesnt get the same hp but oh well mabey ill do the s/r torquers i gota descide

 

Vortec heads with a good cam can be a killer combo on any motor. I really wouldn't get cought up in desk top dyno. If you use a good "HIGH" rise dual plane intake and good long tube headers and enter the correct flow numbers for the heads your going to be using it is pretty close for a 350 engine. For some reason the further you get away from a 350 in displacement on those programs the further off they seem to be. You also have to consider that those test were using engine dyno numbers, you tend to lose alot once the motor is in the car with all the acceseries and full exhaust on it.

The combo you were throwing around wouldn't realisticlly make 375 hp and 375 ft/lb on a 305. I would get some car mags out and find a dyno test that has all the parts your wanting to run. I know for a fact that a HOT cammed 350 with vortec heads makes between 390-410 hp and about 425 ft/lb. I seriously doubt a 305 with the same combo of parts would make much more than 350 hp and maybe 300 ft/lb's. If you were getting those numbers with the performer cam then they are definatly fubar. You have to also consider a performer intake doesn't flow as well as a rpm intake. You'll lose a good 10 to 15 hp right there. The cam in that package is a little mild to be gunning for the 13's as well.

With that all said get the GM H.O. crate motor stab a 454 TBI on top, it'll clear your hood with the GM intake, tune a while and go run your mid 13's. It's been done. When your happy with it stab in a HOT cam and run low 13's pushin 12's with the right converter gears and traction. Cheap, quick, and relatively painless.

 

thats the problem i dont wana swap the mtor i mean this is a new ri just got it and i feel there is no need to just go and rip a perfectly fine engien out and when i plug the stuf in i use longtubes on mufflers to get that i have considered and my pop said it will probly be about 300 mabey 320 hp at the wheels after drivetrain and a/c alt water pump ect so i feel thats quite fine with me i dont wana go putin in a 350 cuase a) i dont ahve 3000 bucks i have about 2 and b0 this 3k plan i put together includes driveline so it will be a little more efective than a 3000 crate motor i mean 305s arnt bad motors why do people just go and give up on them i bet if i get all these engine mods and just a converteri bet i will ru na good low 14 and then i get the converter and tires and ill run a nice 13 i mean yeah buying a 350 would solve the problem right away but i dont ahve the money for the engien plus new intake and throttle body then i have say a 300hp (rwhp) engien buti cant hook the ground for ****? what does that get im runnin 14's for 3k when i could be runnin them for the same price and a 305

 

You have really good motives but I think you need to do some more research. You will not get 370 hp out of a 305 TBI. I don't care what you throw at it. My buddy has a vortec set-up on his 305 with everything you can buy for it including a 454 unit and crap tons of tuning. He is shooting for 250 at the wheels which puts him around 300 at the crank. He is also hoping for a 13.9 all motor. A fully built 305 TBI should only be able to barely hang with a stock M6 LT1 car. You can still make a 305 TBI fun to drive and make it worth your while but it takes time. More importantly it takes money. Nothing could be more right than the old saying "how fast do you wanna spend?" When you are starting with a bone stock 305 TBI 3K does not get you very far. Your next 3K will.

 

thats scary it shoudl be that hard to a 305 ru na good time so what ive colected from thisi s that 305s truely stink as perfromers.. i guess monty is righti saw the new gm motor out there the (i think) 1,400 260hp 350 foot pounds of torque i slap a nice holley intake a a nice big 5.7 670 tbi ill have ot have at least that 260hp! and that would be after all the crap to a stock rear an converter atleast 200-220 to the ground and hell thats alot better cuasei know with a driveline rebuilt ect ill be runnin the high 13s and it will cost a little less than the 305 build up thanks shift your totaly right my dad told me that one the more money you speed the faster you'll go. and with a350 its a better platfrom to suit my wants

 

hmmm i was thinknig would it be good to put a tbi on this engine (http://www.jegs.com/cgi-bin/ncommerc...71&prmenbr=361) or would it be better to order the carb with the package cuase if i get the right tbi and intake it could equal that 600cfm carb and i could get the gas millage a 16 (almost17) year old kid can afford. i think its a great deal and could i reuase my oil fuel water pumps eletrical ect? how much do you think it would cost to get that engine to be a 350tbi perfromer? and in the 13's!

 

Stay away from that motor. It is a non roller set-up with junk heads. For that same amount of money you can get a LO5 shortblock out of a caprice. Don't worry about 13's so much at your young age. Focus on mods that you understand and can afford. Even though I have yet to run my car with the cam I bet after it is fully tuned it will still be a high 14 second car. However, I have put money in other ares of the car that make up for its slow straight line. My RS is tons more fun to drive than my 95Z becuase of the way it performs in other areas. To run 13's you are going to need a lot of chip burning no matter what you go with. I would start by learning how to do that as step one. Use the rest of your money and future money for mods. You will be much happier. Trust me.

 

isee do you think i could take a l03 down to the low 14s .i want a little fast cuase i dont wana get beatup on by factory ls1's.he drove a z when he was out of state (rental) and he drove the RS and he said he loves the way the rs drives its jsut so fun even though it dont have the power its still would take the z on a road corse.he said i shouldnt get my hopes so high.he didnt get his 454 1969 z28 for a first car oh no he had a junker 100 dollar truck but he rebuilt the 327 and made it an ok car the he had a slew of cars he drove another truck then had some low 13 second cars then he had a duster. it woulkd only run 13.8 and it was ulgy but ti was a car he loved no matter what no matter how fast it was. then he had a bunch more cars he drove and loved took 10 -12 cars that got him till his 30s then he got a 1969 z28 beautiful paint 454 ls-6 outa a chavelle rated at 45hp then took it too 500hp and started runnin 10's n/a. what ive learned is ive ot a beatyful car so what if it runs a 14 its still a great car that will take out a latemodel if we descide to drvie around town takein corners or if we go to thevroad track down here thanks shift form akein me realize that.

 

Hey no problem. It isn't that hard to get these cars into the 14's. Do not worry about hanging with stock LS1's. I mean just down right forget it. They will murder you even when you are fully modded.

 

It could be worse i could be driveing an import *shivers* they have a hard time brakeing the 15's

 

Well the thing you have to consider is that we compair the performance of our cars to that of modded 4th gens. That is a tough comparison because GM came out with those cars for the simple reason that they are better. The respond much better to mods and have much better platforms to build power on than a stock RS set-up. A modded LO3, although slow in our minds, is faster than 80% of the cars out there.

 

What Ive noticed in the past few weeks, since now my appearance is almost completely taken care of minus paint which ill be doing in a month, that the lo3 is a very good engine to mod. IMO its better than TPI because you get the upper RPM hp. Also, to those who would appreciate it a 305TBI that runs low 14s/ high 13s is MUCH MUCH more impressive than a lot of setups out there simply because lo3s were meant for economy. In that light, id much rather have a car that not only i can say i took to the max on a "factory economy" engine rather than a setup that would cost as much that is supposed to run that. Be proud of what you have dont worry about hanging with cars that are so new, work with what you have and make that impressive. And remember that our cars are 12+ years old and they still outrun 80% of the cars out there like Shifty said. Just IMO.

90FormulaWS6

 

Bravo, well said