btcamaro

I know this gets asked alot but what kind of times should I expect to get out of my car It just doesn't seem like it is running as good as it should. My combo is in my sig.

Thanks

clippjr8

At the very least you should be running in the mid to low 13's. I had a similar setup with the same heads and cam and ran 13.5 all day long. what are you running in the 1\4?

btcamaro

I have not run it since the miniram but before that i had the edelbrock intake/runners and the best that i could run was a 14.4.

porkyzilla

iTrader: (1)

thats funny im all stock and with a leak at the intake base manifold, and throttle body intake leak....i ran a 14.2 same nihgt 15.2 and 14.7 consistent figured out why the intake leaks haha almost back together ill bet ill break into 13's all stock

speed88

You only ran a 14.4 with the mods in your sig minus the Miniram plus the Edelbrock stuff?? WOW!!! I ran consistent 14.3's with my old L98 that had Edelbrock shorty headers, 2.5" flowmaster exhaust, typical free mods, and ported L98 heads. Basically a stock L98 with exhaust and fresh cylinder heads. (No major intake or exhaust port work was done on the heads, just 3 angle valve job, bowl seat porting, and new valve stems). I think there is more wrong with your motor than you think.

smithtc

iTrader: (5)

If nothing mechanical is wrong...

My $0.02
Are the stock heads unported? If so, then your heads are a restriction. They're not bad, but not ideal for your combo.
24 lb inj. should work fine, but do you have a chip burned?...or a tune worked out in conjunction with your 730 ECM? Major modifications such as yours require changes in the chip.
I think the 3.23 gears need to be swapped for a higher numerical ratio set. 5-speed trans...How well do you shift?
9.5:1 compression seems low for the aluminum heads...and May be too low for that camshaft.

I'd call TPIS, since you are using their intake and cam., and get their opinion on your combo, and see what they recommend. I'd like to hear what they have to say.

btcamaro

I don't think anything mechanical is wrong. I checked the compression and it was 150lbs on every cylinder is that good or could that be a problem? I am burning my own proms but all I have worked on is the ve tables I haven't touched the wot tables yet because I am waiting on the money for a wbo2 sensor.

robsgta

Your car should be a strong mid to low 13 second car. BUT the major difference in your time should depend on getting some slicks since your car already is standard . (traction will make you or break you) if your trying to run fast with street tires your wasting your time.
BTcamaro what is your 1/4 mile and 60 foot time right now??

btcamaro

I have not ran it since the miniram but my best with the edelbrock setup was

60' 2.04
1/4 14.43

It doesn't seem to run any better I just haven't had a chance to run it yet.

kevinz85

How fast are going though the traps?

btcamaro

I can't remember and I can't seem to find my time slip but I think that I was trapping at 91 or 92

D's89IROCZ

that seems low for that E/T ...no ?

89305RS

yeah it is low. I ran a 15.2 @90mph friday. But the TBI gods think that it needs a tune for the 14s. I should be mid 14s with a 90 mph trap.

D's89IROCZ

I ran 15.1@93 ..... it was only good for a 14.7 I was told ...

90 is optimistic for mid 14's ,but with your setup its now time to learn how to burn proms ...... I need to as well but .... you really need to learn


....did you say you got this from TPIS? . If so did you get their prom ?

robsgta

I dug up a time slip from my stock configuration with just a few simple cheap bolt ons. air foil,k&n,flowmaster muff,custom chip 160 thermo,modified MAF, other than that it was bone stock with BFG slicks I ran a 2.13- 60 foot, 1/8 - 9.089 mph @77.18, 1/4 mile 14.113@96.99


Another thing you might want to try is let some one else drive your car a time or two it might shock you. A standard cars biggest
loss or gain will be the leave off the line.

Captain C

Don't feel too bad, my best ET so far is a 14.37 @98.43 ( Track is 700' elevation and had a 103* temp that day)

I'm in the process of upgrading to 30# injectors. The car just seems to lay over at half track and I'm wondering if I'm just not sending enough fuel to the engine (not fuel pressure).

I went back over my old time slips and noticed that my actual best ET's were with the timing set at 10* initial advance. I don't think I've made a run with the timing that low since I pocket ported the heads. The car pulls really hard on top end with the timing at 16* but it doesn't have the low end it needs with the current gearing I have. Too much time is spent out of the power band in third gear.

My ET's also suffer due to a lack of traction with street tires. I have to launch at half throttle off the line and then floor it once moving. Also, this was before the newly added Probuilt transmission and Edge 9.5" 2800 RPM stall converter. My previous converter was a generic 12" 2500 rpm stall unit that doesn't work nearly as well. I'm anxious to try this thing out once it's back running. With the better converter I might just be able to take a little more advantage of a higher timing setting too!!!! But first things first, try 10* then go up from there....

Definitely want to do the burn your own chip thing or go with an Excel computer. Just don't have the duckets for either at the moment.....

smithtc

iTrader: (5)

So, what did TPIS have to say?

btcamaro

I havn't had a chance to call them I have been really busy with work and I also want to check everything that they might ask me to check already done. I will post what they tell me as soon as I get a chance to call them.


Thanks for all of the replys

rottonj

I used to own a 89 formula 350, mods were flowmaster muffler,b+m shift kit, k+n with homade ram air, air foil and timing bumped to 12 degrees(sunoco 94 ultra) and it ran 14.2 at 97 mph.That was in 1992 and I thought that was pretty quick.

btcamaro

well I ran my car last night with the mini-ram and the best that I got was a 14.61 at 95.7mph I was going to work on my chip some but my laptop harddrive crashed on me at the track. My 60' was 2.2 so i need to work on the traction but I was hoping to be running a better mph than this.

1989GTATransAm

iTrader: (3)

You definetly need to get a new eprom burned. Going to a Mini Ram is a big time change. Allen

daxfas26

iTrader: (1)

Dang man you really must have something wrong??? Are u getting spark and fuel to all cylinders. Sounds like with those nbrs your only running 7 cylinders. I would check each plug if they make spark and the fuel injectors make sure they in good working order. I had a 383 with stock unported tpi and out of box trickflow g2 heads with 9.2 compression ran 13.2 @103.5 mph all day long. One last question how's your car sound does it sound like its got a big cam is it spewing a lot of black smoke?

btcamaro

If it was running on just 7 cylinders wouldn't it have a mis? It seems to be running ok just doesn't have the power that it should I will pull all the plugs tommorrow just to see if anything looks wrong but I am not real sure what I am looking for.

daxfas26

iTrader: (1)

when I had that last setup one of the fuel inj clips came off it make lot of black smoke and sound like it had a really big cam in it glub glub glub, so Id take a screwdriver and test each spark plug wire just stick the screw driver inside one spark plug at a time and put the rod of screwdriver over something metal and see if u see spark in each cylinder. careful this will shock the crap outta you if u are not careful. and i recommend having a friend to start the car everytime u check one. then get a voltmeter and see what all injectors read all should be pretty close to the same if u see one thats way off could be a problem? I guess try this for now and if it still isnt the problem we have eliminated that it could be spark or fuel. it could be internal or your transmission? hell it could be anything lol!

robsgta

Bt I was wondering if you power shift or have ever tried to power shift.

I mean once you leave and floor your throttle out of 1st gear your right foot never leaves off the throttle to shift from first to second or from second to third etc etc with only your left foot punching the clutch to momentarily slam it into gear.

btcamaro

I don't power shift the trans because I have nuked one to many trannys if you know what i mean

MaineIrocer

I am kinda new with this racing stuff what i have heard it refured too several times....what do you mean when you say "burn proms "

robsgta

Maine Irocer

https://www.thirdgen.org/newdesign/tech/promintro.shtml

87camaroz28310

i run 14.52 on my 305 but when i ran slicks it slowed me down so you might do better on street tires. you should be run faster then a 14.4 because i had the times for a 14.2 run and missed 3rd.