Here's my set up.
'91 RS, starting with stock TBI 305. (170hp).
Stock thermostat. TH700-R4 and 2.73s.
To it i've added a 10"x3" Open Element K&N, blocked thermac and relocated IAT to firewall.
Then added Dynomax Super Cat w/airtube and Hooker Super Comp catback with Aerochamber and dual quad tips, yesterday.

Has anybody got, or had this exact setup and either:
Dyno tested it
Drag Strip Tested it and got an HP number, or
G-Tech Pro'd it?

How many ponies did i get? I'm not interested in guesses or manufacturers claims. I'm wondering if anybody has actually got test numbers on my set up.

If my next planned step is a 170* stat and a stage 1 TBI Chip, (looking for reliability and driveability on 89 oct, as well as power) would that be a good next move, assuming that my wallet's not fat enough for the LT1 cam and new heads?
Will my stock FPR and injectors handle the mods to that point, or will i have to convert to adjustable pressure?

Thanks for your patience and help in advance,
Christopher.

 

Oh, yeah,
The K&N is in a NON-drop air cleaner, with the TBI spacer ring removed.
thnx.

 

Well the high flow cat, cat-back, and open air element will yield you some nice gains. I would say roughly 15-20 at the fly and 10-15 at the wheels. You will see another solid 10hp to the wheels with headers. You should be fine with your stock Fuel pressure. Every TBi car is set differently from the factory but I had every single bolt on (minus any stage x chip of any kind) and the car ran great. I added an vacuum adjustable fuel pressure regulator just to make sure but it didn't do anything. You do not have to worry about injectors until you do heads and cam. I would save your money on the chip and put it towards headers. You will be happier that way and still be able to use 87-89 octane fuel.

 

Thanks shifty.
Good advice.

 

i have:

a 3" open element, drop base
IAT on the firewall
catback is OFF, so its like the most free flowing exhaust you can get with a catback.... the cat is still on there.
same tranny and gears


it dynoed at 152hp at the rear wheels:

pic of my dyno run: http://josh.swoca.net/board/MrDude/Dyno/Run1bigpic.jpg

on the 1/4 mile, i worked and worked on it changing the way i drove..

i found that by holding out each gear longer i got it down to a 16.0.. at a 3615lb race weight as it sits on the track ( i have a vert, with a stereo system and everything in the car)

according to the Gtech, my best 0-60 time is a 7.86 however, i think i can do much better... i only made 3 runds with it 0-60


hope that helps.

 

do a run with all your stero crap out of the car and the spare tire and jack and back seats.And if you donty use it the a/c out to.That should get you to the mid 15's.:lala:

 

Ya know what else ya could do? gap your plugs to .022. I thought it sounded stupid I figured it would create a smaller spark and give more incomplete combustion but, i was wrong. Because the gap is smaller, the spark is stronger and actually ignites the fuel better allowing more complete combustion and increasing hp while helping to kill fuel economy
I got a consistent gain of 13 hp by doing that.

 

try gapping your plugs to .022. I thought it sounded crazy too but, it works. smaller gap = stronger spark. i gained 13 hp consistent. however my fuel economy suffered about 20 miles per tank

 

i did a run with the AC on for the heck of it... ran a 17.3 somthing


spare tire and jack is out..

and since someone stole my stereo, i think i'll be a lil faster.... but when i goto the track, i like to see how my car runs, as it sits on the street... the only thing thats diffrent is that on the track, they dont let me run with the top down

 

believe it or not running with the top up is probably better. with the top down you start to parachute. in other words. air comes up over your windsheild and drops behind your head and hits the beack seat. It holds you back. Plus it's safer. If the guy next to you shreds a tire and he's out in front, guess who's gonna get a hot piece of steel belted 255/60r16 slapped right across their cheek. OOOOOOWWWWWWW.

 

91RS4life. Are you sure you gained 13 horses just by regapping your plugs? did you see those results on a dyno?

 

I thought that sounded pretty fishy to me as well.

 

wheel dyno confirmed 7 horse gain. Engine dyno confirmed 13. Using 1.94 heads and a 4.040 bore. Thank you for asking.

It's a standard trick I use on all my cars and I never see less than 3 hp increase at the wheels.

 

well, the gap you run depends a lot on your ignition setup...

 

Assuming that the DA is the same I doubt that is 500 pounds lost...

 

I doubt you will run mid 15's by just doing that. you should look into some more effort like cutting out the wheel wells and removing all the interior except for dash and drivers seat. drop that big heavy 16.5 gallon gas tank and drop in a lighter wieght 3 gallon cell. get rid of everything you don't need like heater core dryer evap. condenser, compressor, power steering smog...basically think about the bare essentials and get rid of everything else that is not needed even if it weighs an oz. That should put you into the mid 15's using a stock motor, tranny, etc. I tried it on my 83 when I was 20 and I made a time of 14.774 @ 119 m.p.h. using a 305 with no work.

 

you are smoking crack if you think you are gonna be trapping ANYWHERE near 119 mph in a stock 305, not to mention that if you did you would be running close to 10's, not 14.7. Somebody is full of ****.

 

24thRSS is right. If you ran a 14.7 and trapped 119 than you have serious traction problems or your numbers are fudged. You would have to be running 11's with traction or 10's without to get that trap speed. Heck, its hard to get a 305 to hit 115 on a mile straight away. There is a guy here in town that has a twin turbo LS1 TA and runs low 10's at 130-136mph range. He also has a heads cam 30th aniversary TA vert that ran a 12.05 and it trapped at 119 I think. Your times are off.

 

Hahahaahahahahaahahahahahahahahahahaha.

No seriously... there's no way on earth.... pffffhahahahahahahahahahahahahahahahahahaha

*rolls over and dies*
You seriously just made my day at work a little brighter.

 

91rs... you are so full of crap there's no way....oh wait I'm 91rs4life...I forgot

I hit the wrong button for cripes sake I meant 11.774 (now is where you look at your keyboard and say, "oh yeah I see how he could've done that."

Actually I'm lying, I'm lying about the whole thing. Even though the motor was stock...now my tranny (aluminum power glide)and rearend (richmond 3:23 posi using aluminum alloy bowtie axles) weren't and I got the weight of the car down to around 2800 lbs if I remember correct. maybe 2900 I don't remember for sure. Plus I did run open headers (which I don't consider that a motor mod. I look at it as an exhaust mod. so you're saying high 11's isn't feasible huh? well okay then I'm a liar

I'M LYING <<< that's me MR. BS

 

I think most of us would belive the 14.774 but the 119mph is what gets us. Those two numbers do not go together. And you are a liar if you say your 305 went 11's at the 119. I understand your typo but your new number supports the BS flaging. You are going to need more than a tranny, and some axles and gears to run 11's. You are going need at least 450hp in a 2800lb car to get you even close to that. Unless you have a fully built 305 with great tuning and a HUGE shot no way. There is seriously no way dude. I think I speak on behalf of thirdgeners where I want to see some proof. Not just slips because that doesn't prove what car you were in. A fully heads and cam and every bolt on LS1 can barley hit mid 11's. And any heads and cam LS1 will absolutley MURDER, I mean muder you so bad your mom will feel it, your stock internal 305.

 

Taking off weight down to 2800 lbs and running straight headers will get you nowhere close to that speed. If it were that easy, we'd all be doing it.

Lets think about this... if I do it your way, I should be able to take some weight off, run straight headers, get new gears and a new TBI and be in the 9's right?

w00t!!!111

 

I would love to show you. take a camera film it, upload it and send it to your email but, I don't have the car anymore so I won't sit here and continuously argue about whether or not I did it. I do have something to prove but, I can't prove it. So I'm stuck against a wall. this forum is in your favor and I'm a liar. Now stop focusing on me and answer the topic of this thread. I gave my tidbit and if I knew it was gonna start all this I would've never posted it. I'm not mad. It's more like, "well they don't believe me. so what. I know what I did. My witnesses saw it and it was an amazing feat." I got my satisfaction the day I went to the track with it. The people that said it couldn't be done then learned their lesson that day. I'm sorry you weren't there to see it. My point at that time was that I can get a stock 15 sec camaro to run 12's without engine work. They laughed too... Now they copy my tactics. Good Luck with all of your projects out there.

What if I told you about a 10 sec cutlass? or a 10 sec K car?

Email me if you would like to see those.
91rs4life@comcast.net

 

I geuss you have to understand where we are comming from. You should submit your car/video/proof to the book of world records because no one in this wolrd has gotten a stock internal 305 to run 11's. Even 2000 lb civics need 350 to 400 hp with spray to run low 12's high 11's. And I know you car isn't 2000 lbs. Even if you had the unibody stripped and just had the motor in the thing and thats it still seems far fetched. Now if you had a stripped unibody with a heads and cam and what not on the 305 than sure. I 'd belive it then. I am really not trying to hate on you man it just that there are people on here on thirdgen with 350 TBI's fully worked with heads and cam and the best tuning out there, massive weight reduction, and serious drag set-ups and they only rrun high 12's low 13's. I don't like raggin' on people but I geuss this one struck a nerve. I take it on your '83 you had carb, or did u switch to TBI since you posted here.