so im just curious if im running what i should be runing with these mods.

i got a 14.272 at 96 mph 2.046 60' time

its a 87 iroc 350 700r4 auto

it has hooked super comp headers hooker y pipe and hooker areochamber cat back.

bbk under drive pullys

bosch type 3 injectors.

slp air foil

K&N air filters.

msd cap rotor super conductor msd wires

ac delco plugs

holly afpr set at 52psi wot(vaccum unplugged and plugged)

timing at 10* btdc base

92 oct gas 1/4 tank full

3:45 gears 9 bolt stock.

and im just curous what other bolt on stuff ican do to push me into 13's i dont want to rip apart the heads or anything internal untill i blow a head gasket or such.

thanks

 

a higher stall converter will put you there...easy! I had a 305 with bolt ons in my car and with a 2800 stall and nitto drags...I got me a 1.7 sixty! thats almost 4 tenths compared to yours...and had 3:42's

since you dont wanna go in the motor..your kinda limited

 

yea i would totoaly do that but the money id spend on the stall and labor time putting it in myself id rather put towards my 6 speed manual swap.

you know?

yea i just dont want to rip apart the internals yet im going to start buying cam vortec heads and intake and such when i have the whole package together im going to put it all in but for now all the bolt ons i can do id like to do.

but im really curious if you think im in the times i should be at with my mods?

thanks for the reply!

 

Sounds about right for your mods. Although 52psi sounds kind of high to me for that engine with those mods. Have you tried 48 instead?

 

I ran 50psi in my old 355TPI and without tuning I had a 13.9, that 60 is whats killing you.

 

i have tryed 48 psi their was really no difference in times from 48 to 52.

yea and the only way to get my 60' down is to get a higher stall.

right now im launching at max stock stall 1500 or so and with my bridgestone 960as pole positions i hardly get a chip punching it right off 3rd yellow.

and i plan on a 6 speed swap so why puter money in a converter thats going to go to waist in the near future.

so i guess im bottle necked for now untill the 6 speed huh?

 

If you're running a 2.0+ 60 I'm assuming you are on street tires. Spend around 300 bucks on a set of drag radials and you will have your 13.xx timeslip.

 

I see no suspension mods, typical mistake. What's power and torque if you can't get it to the ground. Invest in some LCA's. Since you're going to do a T-56 swap getting a torque arm is pointless.

Are you good with a dremel? Yank the intake off and have some fun. . Cheap and easy.

 

I have experience with 87 and maf. For one, run ARAP tuning, search in the diy prom area(actually you should just live there for awhille i bet you could break 13's just be reading all the great stuff in there and applying it)

10 degrees base timing is a bit too much, stock 6* or 8* max is where its at, that extra four degrees may be costing far more in knock timing, which brings me to the next point, fueling, if you're seeing gains from using 92 octane it's probably because it's helping to avoid the knock caused by the added timing, and the same applies if you're also seeing gains from using that rather high amount of fuel pressure.

all in all i think you need to dial it back a bit, go to medium grade or regular fuel that's suited for stock compression.

also be sure you're getting full voltage with those under drives, less voltage equals less spark which sucks, a good running electrical system is very important to these cars, more so then is usual, a/f ratio is directly affected by the ecm based on battery voltage.

 

I agree with many here... TIRES TIRES TIRES! and suspension! add nitto 555 drag radials, subtract front sway bar, pull out excess weight if you want some more insurance, practice the launch and you should be right on the cusp of 13s. go on a cool night and it'll likely push you over the top.

I have to say that I would've expected you to run faster in the 1/4 with what you have though. I ran my 84 T/A that had an L98 and 700r4, posi 9 bolt with 3.27s, slp shorties and a decent 3" exhaust and got a 14.04 with old street tires. I had the front sway bar and rear seat out, but the tires really aren't that good and it was pretty warm (80s I believe). The engine itself and tranny were stock as far as I knew (bought them used) and it even had the factory intake ducting with a paper filter.

 

Your MPH is good for well into the 13's the problem is your not hooking it up, get yourself some stickier tires or drop the pressure in your street tires, get them real hot and practice the launch. I'm assuming you know how to hit the groove correctly? I've seen alot of guys who didn't and couldn't figure out why they were doing 2.0 sixtys and I was breaking into the 1's. As mentioned, drop the timing back to 6, I would leave the fuel pressure where it is; you mentioned you were running the Gen III injectors, which ones are you using? Also who burnt your prom for you?

 

thanks for all the replies.

so im seeing alot of suspension and tire mods being suggested.

yet with my stock suspension and bridgestone tires.

i can launh at my max converter stall and now even chirt the tires.

so i cant see how slicks and suspension will help my time if im allready launching at the cars full potential. but i could be wrong. so let me know.

i have already decided. that the 75' 4 bolt main 350 in my garage is getting built for the iroc

with a 6 speed to back it.

im sure my motor is a little worn too. im not sure. i know something is still going on with a rough idle and tip in hesitation ive been chaseing this problem for months now on the board and nothing sucessful yet.

i just donno

 

That's your problem. Your not listening to the good suggestions made by the rest.

Enjoy living in your 14 second world.

 

Carb swap would probably put you in low 13s

 

im not saying it wort help im asking how because i dont physically see how i could launch any harder then i am now when im at my torq converters max stall.

but like i said im asking.

i never said those are bad ideas. im just trying to get indepth with how they will help on my particular application.

im new to drag racing im not new to cars and theorys to how thing work.

thanks

 

Your car will be faster if you throw in a stall and suspension, than when you put in a 6spd. Seriously. A stalled/geared car will always beat a manual car.

 

He's right though. As of right now, suspension and tires will do him near nothing. I put my old 305 back in a couple years ago with all of the current suspension mods, and it dead hooked on a set of radial t/a's. I swapped on the drag radials and it made it just a tad slower from the bigger diameter.

 

thanks fast82 z thats what i was terorizing in my head.

and if it was just a strip car i would keep an auto but its going to be my weekend fun car, stip car, and id like to get it on some tracks or autocross maybe some day.

i want the overall fun of the manual. you know

ill be building an s10 blazer for a strip car eventually.