[PRAY]

I got to the track today. I was extremely disappointed that I couldn't get my DR rims to fit. I almost didn't go. Anyway, I am glad I did. I only got a couple passes in before it started raining. The car has my ported Int/TB, Roto-fab dry filter CAI, and I tuned it. It is full weight on the stock rims and tires. I had about a half tank of gas. The car was only cooled down long enough for me to air down the rear tires, air up the front tires, pull the intake manifold cover and pay to run. I got in the lanes immediately to avoid the weather. Coolant temp was in the high 190's to low 200's. The IATs were in the high 70's at the beginning of the run.

The first pass would have been in the 11.6's but it spun the 1/2 shift. The second pass was hot lapped. I stalled the car to 2K, let off the break and hit the gas pretty quickly. Since the track was so bad last time I was hesitant to get into it to hard. Looking at the log I was only seeing .91g/cyl so I was down a bit of power to my last dyno runs where I was seeing .97g/cyl. The trans was short shifting 4/5 and it was dropping the rpm down into a low timing point. I was in the middle of correcting all of that when the rain started. DA was around 0 to -200. The Kestrel was having issues depending on which way I pointed. It was closer to 0 according to the interwebs. The g/cyl really tells the story. I am very happy with the way the car preformed. I honestly think I would have been in the 11.50's if I could have implemented my tuning changes and got more aggressive with the launch. The track would have taken it today.

[laynlo15]

Great runs, but without those drag radials or slicks its gonna be tough get your 60 ft times down to get that 11.60 you wanted

[ULTRAZLS1]

Nice job!

[danielblack60]

Nice runs! I've been saying these cars have 10 second potential with bolt ons. My guess is we will see a few dip into the 10's soon! With a converter, drag radial, and e85 you would be close.

[PRAY]

Originally Posted by laynlo15

Great runs, but without those drag radials or slicks its gonna be tough get your 60 ft times down to get that 11.60 you wanted

Thanks bro. I wanted anything in the 11.60's. I was only .03 away. I think I would have had it on the first pass if I didn't spin on the shift. The tuning changes I made would have gotten me there as well. I know the car had a 1.75 or better 60ft in it today. I am positive I would have gone into the 11.60's had the rain not come.

I still say I can get to 11.50's as in on the stock tires. I just need the weather. It is coming. We get some serious neg DA days here. If I can see the g/cyl I saw on the dyno just the extra power alone will be worth a tenth or more.

I will be moving to a drag pack soon or at least a DR. Just want to see what I can do on the stock stuff. I am hard headed.

[PRAY]

Originally Posted by danielblack60

Nice runs! I've been saying these cars have 10 second potential with bolt ons. My guess is we will see a few dip into the 10's soon! With a converter, drag radial, and e85 you would be close.

As soon as guys are willing to tune you will see plenty of 10 sec bolt on cars. Just look at how crazy fast some of these guys are going with just a drag pack and a bolt on or two. Headers and E85 should be worth 50+rw on my car. Add a legit drag pack and I personally don't see a need for a converter at that point. 10's in good weather.

[PRAY]

Originally Posted by ULTRAZLS1

Nice job!

Thanks man, I am working on it.

[6spdhyperblue]

Originally Posted by PRAY

As soon as guys are willing to tune you will see plenty of 10 sec bolt on cars. Just look at how crazy fast some of these guys are going with just a drag pack and a bolt on or two. Headers and E85 should be worth 50+rw on my car. Add a legit drag pack and I personally don't see a need for a converter at that point. 10's in good weather.

With the low first gear, can the stock converter still get it done because it will keep the MPH higher?

[PRAY]

Originally Posted by Nicul15

With the low first gear, can the stock converter still get it done because it will keep the MPH higher?

I just think that the way this motor applies power and tq we don't need really high stall converters like before. I am on stock tires so I don't know what the stock converter will flash to with traction. But I wouldn't change converters unless I swapped the cam or went to an MSD intake. That is only because of the tq loss with those products. The gearing and VVT are what it getting this thing through the 1/8th and rolling out. There is only one shift after the 1/8 for my car now. It was shifting just before the 1/8th today. So the trans and stock converter are getting it done. One thing I was going to experiment with today was converter lock up. I have some people swearing to me that keeping the converter unlocked is worth a tenth or two. A higher stall will obviously help. I just don't think it is needed to hit 10's with bolt ons. I will do what is needed to prove myself wrong if I am wrong. Anything that whittles away at e.t. is totally worth it trying to hit 10's. Ounces make pounds. There is a lot in the tunes that haven't been cracked yet and not many people are digging in to see where the real gains are, no matter how small.

Looking at my dyno graph, at 3,000rpm my motor is making roughly 95% of the peak tq number that occurs between 4,300 and 4,700rpm. I think I can close that gap with some more tuning. I would have to start a dyno run at 2K so see how bad the tq number is down there. I would say a 3,500 stall would be ideal looking at my dyno graph.

[JFM-jr]

Nice runs on stock rubber wait until the drag radials go on it is gonna drop into some great numbers.

[ULTRAZLS1]

I too suspect 10s will be possible on the stock converter bolt on na with e85. Near full weight. Incredible.

I'm planning on a cf driveshaft as well. Every little bit helps.

[Speedy1975]

More nice runs. Not sure about the love affair with the stock rubber, but whatever turns you on LOL

I did have my best 60' just smashing the gas as some have stated, it was marginally better at 1.88 vs 1.93. The car also spun and wheel hopped so harder on the equipment vs. me loading up on the brakes to about 1200RPM jumping off the brake and going to the floor with the throttle.

I'm starting to wonder if the launch control instructions in the manual aren't 100% correct, of if GM just kinda noticed the car would do that during testing and called it launch control. My runs where I gently apply the brake and bring the RPMs up to 1200 or so are drama free no spin launches.

[PRAY]

Originally Posted by Speedy1975

More nice runs. Not sure about the love affair with the stock rubber, but whatever turns you on LOL

I did have my best 60' just smashing the gas as some have stated, it was marginally better at 1.88 vs 1.93. The car also spun and wheel hopped so harder on the equipment vs. me loading up on the brakes to about 1200RPM jumping off the brake and going to the floor with the throttle.

I'm starting to wonder if the launch control instructions in the manual aren't 100% correct, of if GM just kinda noticed the car would do that during testing and called it launch control. My runs where I gently apply the brake and bring the RPMs up to 1200 or so are drama free no spin launches.

My love affair with stock rubber comes from being cheap. I also like to prove what can be done with a car the way it rolls around every day. I am an old street racer so I want to know worst case scenario what the car can run. Plus if I can run with the DR guys on the stock rubber I feel better about myself. Lol. I get to take some pride in my driving skills.

I have tried a ton of stuff on the stock rubber. The technique I listed is the best for me and another guy that cuts 11.75's consistantly and had gone 11.83@116.8 bone stock. I think he has gone well into the 7.50's in the 1/8th. 24psi, light burn out, 2K stall, off break and onto the gas. Just hold on from there.

[Speedy1975]

I understand what you're saying. I think the challenge is the unknown variable of the track and how it's prepped. One track may have awesome prep and allow the stock tires to do something, where another may have none at all, like my local place, and the stock tires won't do too well. I got a 1.88 on the stock rubber which actually surprised me. Average street tire 60' is high 1.9 low 2.0 for most, so pretty dang good actually. With DR and slicks it takes a lot of the track prep variable out of the equation. You're pretty experienced, so I'm probably stating the obvious.