Track results
07-07-2012, 01:39 AM
#1
Track results New crank trigger wheel fixed my ignition issues....
Ran my car today at the track, did a best of 7.08 at 97.xx on a 1.55 60'. Only got one good pass because I broke the throttle cable right after the 330' on what would have been a 6.9x run. Data log on broken cable pass showed AFR of 13.6 (!!!) which is extremely lean for e85, and explains why the car felt pretty lazy in 1st gear.
Picking up 2 or 3 new throttle cables from the pick a part place tomorrow morning for racing again tomorrow. DA was 3500+ today and will be 4000+ tomorrow but I'll get in the 6s for sure when I get the fueling dialed in, e85 likes to be run ~11.80 indicated AFR. Suspension still needs some work, car was down on power and still spinning. Haven't played with shift points or timing, shifted at 7600 and seemed to make good power there, I think theres a lot of power on the table in the timing/AFR. Car picked up 2.5 mph open headers vs through the mufflers! Will update tomorrow...
Ran my car today at the track, did a best of 7.08 at 97.xx on a 1.55 60'. Only got one good pass because I broke the throttle cable right after the 330' on what would have been a 6.9x run. Data log on broken cable pass showed AFR of 13.6 (!!!) which is extremely lean for e85, and explains why the car felt pretty lazy in 1st gear.
Picking up 2 or 3 new throttle cables from the pick a part place tomorrow morning for racing again tomorrow. DA was 3500+ today and will be 4000+ tomorrow but I'll get in the 6s for sure when I get the fueling dialed in, e85 likes to be run ~11.80 indicated AFR. Suspension still needs some work, car was down on power and still spinning. Haven't played with shift points or timing, shifted at 7600 and seemed to make good power there, I think theres a lot of power on the table in the timing/AFR. Car picked up 2.5 mph open headers vs through the mufflers! Will update tomorrow...
07-07-2012, 08:10 AM
#3
I'm pretty sure a throttle cable from an S-10 blazer works, but check it yourself when you get to the yard. There might be a tiny difference. There will be a lot of blazers in there compared to f-bods. Good runs for first time out, plus air like that sucks.
07-07-2012, 08:27 AM
#4
NICE! That thing should be moving pretty good. Good luck with it. Sounds like 9 second 1/4 mile times might be in the future?
I mean...Just another slow LT1 that cant rev high.
I mean...Just another slow LT1 that cant rev high.
07-07-2012, 01:11 PM
#7
Going to try the ram air today... I was pulling 1.5" of vacuum through the filter yesterday. Added about 15% fuel at WOT as well, should have a good result first pass. I run 3 mufflers per side for the street, full size pypes race-pros, bullets, and auger inserts.
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07-08-2012, 03:55 AM
#9
Well it was pretty hot today, 4500 DA to start and the car was struggling for the first few passes. I was having bad stumbling issues come up on the two step, and then stumbling as the motor hit the converter. Went from mid 1.6 60' dead hooking to two 1.49s with plenty of wheelspeed and picking up the fronts 4-5". Got my 6.99 at 98mph on my 5th and last pass of the day. Still having a few issues on the two step and I feel there is a couple hundredths in 60' there. Mostly concentrating right now on getting the car to leave, then I'll work on shift points and timing to make some MPH.
07-08-2012, 04:06 AM
#10
Suspension settings for last pass were full loose on front qa1s, 8 on SA rear qa1s. Neutral drag bar, -2.5° pinion, lowest LCA hole (barely uphill). 11 psi in stiffwall 28x10.5 hoosiers. A DA rear shock would help, I need more compression stiffness to control the rear wanting to unload after the initial hit, and setting them on 8 is slowing the rear planting the tire and letting it spin as opposed to 7, which planted great but bounced too much. It might be worth a try to raise the LCAs one hole, and loosen the rear shocks... mike v and joelster where are you??
07-08-2012, 07:58 PM
#11
Try adding a little air in the rear so they don't compress as much on the hit and then have all of that stored energy. On a track that hooks good, my tires like 13lbs. Try to get someone to video a launch. It's not always easy to tell what is happening from the driver seat. 4500da is horrid, lol. Your car will be 10's easy. A 6.99 at 98 would creep in to a 10.95 even in that **** air.
07-08-2012, 08:13 PM
#12
Yea had my friend getting vids from a 3/4 view, didn't think about raising tire pressure and it makes perfect sense. It seemed like tightening the rear shocks did little to control the unloading but 1 click of stiffness seemed to add 3/4-1 turns of the tire before really moving the car forward. Looser shock for more hit, more tire psi for less stored energy in the tire and more moving the car forward. Yea track temps were high, IATs were ~20° warmer than ambient temp pulling from the foglight openings, i was seeing 100-105° until the sun went down and the track consequently closed 
Gonna take the car out next week and add 1/2 lbs at a time without touching the tune, the car should eventually 60' at least a tenth quicker!
Gonna take the car out next week and add 1/2 lbs at a time without touching the tune, the car should eventually 60' at least a tenth quicker! 
07-09-2012, 05:34 PM
#15
No ****, those are good times!
If my car went 6.99 in 6 passes Id crap my pants. What people dont realize is that sometimes well built fast cars only get it to go down the track right 1 or 2 times a night/outing if that. Most of the other passes **** goes wrong and it just doesnt line up like it should. Getting a time that quick with that little seat time proves that its a beast.
If my car went 6.99 in 6 passes Id crap my pants. What people dont realize is that sometimes well built fast cars only get it to go down the track right 1 or 2 times a night/outing if that. Most of the other passes **** goes wrong and it just doesnt line up like it should. Getting a time that quick with that little seat time proves that its a beast.
07-09-2012, 06:14 PM
#16
I've said it before and I'll say it again, most cars shave an honest .5 second off of their times from simple testing and tuning. Wicked's car will be rocking some 6.5's with a few tweaks here and there, spending maybe $50 on different plugs, etc. Never get let down on what a car runs fresh from a build and right off of the trailer. LOL at sweetbmxrider talking smack about a 10-second street LT1 car. What do you drive?
07-09-2012, 06:31 PM
#17
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What heads do you run? Why would you not tuch the tune and work on ur 60' if your saying its very lean. If you dial it in then add more power then you will be back to dialing in the 60' with the added power.
07-09-2012, 07:47 PM
#18
There are some old AFR castings on it, measure about 214-216cc. The tune is safe at this point, and from 5000-6200 is pretty close, and that's where the car launches... I wouldn't waste my time otherwise. I'd like to run 6.699 NA by the end of the season (October) and 5.999 on nitrous. Not too lofty but not easy either. Need the cage installed, I let off at the 1/8 and I'm coasting to 11.70s at 80mph 
Edit: Even with a 4" oval intake from fog light opening. I still saw the same 1.5" of vacuum and the car going rich above 7000 with no improvement in MPH over the filtered intake. TB might be worth a few HP I think?
Edit: Even with a 4" oval intake from fog light opening. I still saw the same 1.5" of vacuum and the car going rich above 7000 with no improvement in MPH over the filtered intake. TB might be worth a few HP I think?
Last edited by Wicked94Z; 07-09-2012 at 07:52 PM.
07-09-2012, 08:22 PM
#19
There are some old AFR castings on it, measure about 214-216cc. The tune is safe at this point, and from 5000-6200 is pretty close, and that's where the car launches... I wouldn't waste my time otherwise. I'd like to run 6.699 NA by the end of the season (October) and 5.999 on nitrous. Not too lofty but not easy either. Need the cage installed, I let off at the 1/8 and I'm coasting to 11.70s at 80mph
Edit: Even with a 4" oval intake from fog light opening. I still saw the same 1.5" of vacuum and the car going rich above 7000 with no improvement in MPH over the filtered intake. TB might be worth a few HP I think?
Edit: Even with a 4" oval intake from fog light opening. I still saw the same 1.5" of vacuum and the car going rich above 7000 with no improvement in MPH over the filtered intake. TB might be worth a few HP I think?
