LBO 16 SS goes 11.0@123
#1041
TECH Fanatic
iTrader: (6)
Join Date: Sep 2008
Location: DSM
Posts: 1,433
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I hadn't planned on it. Goal was 10.99 with stock converter and then 9.99 stock converter on boost. I will most likely end up having it restalled but I really don't want to.
I need to stop hitting these dang mid day track rentals. I may just need to rent it from evening to night once I have all the kinks worked out. It is going to take everything lined out and - DA at this point.
I need to stop hitting these dang mid day track rentals. I may just need to rent it from evening to night once I have all the kinks worked out. It is going to take everything lined out and - DA at this point.
#1042
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I am not familiar with the Dynamic compression test. I just have the normal cranking compression testing kit and the Summit dual gage leak down tester. Which doesn't work as advertised BTW.
#1043
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
My main concern is my 4+ loss of MAP KPA from the beginning of the run to the end and my .5 g/cyl loss in the exact same DA. I have to find this restriction. I am pretty sure that is what is causing my problems.
#1044
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
These passes were on pump E at 77% in -1,300 DA with the stock manifolds.
![LBO 16 SS goes 11.0@123-11.07.jpg](https://ls1tech.com/forums/attachments/street-racing-kill-stories/565274d1485725027t-lbo-16-ss-goes-11-0-123-11.07.jpg)
This was yesterday on pump E at 75% in +18 DA with the headers.
![LBO 16 SS goes 11.0@123-11.12.jpg](https://ls1tech.com/forums/attachments/street-racing-kill-stories/565275d1485725027t-lbo-16-ss-goes-11-0-123-11.12.jpg)
See what I mean that it just wouldn't 60ft or 1/8 mile. This car has really only been a 22 to 23mph back half car. It has always been a 1/8th monster compared to its back half. The biggest difference yesterday was 26.5mph on the back end. Nothing I did tuning wise changed anything on the front half. I ran about 10 of these 11.12-13's in a row and some were so close I though they gave me the wrong slips.
![LBO 16 SS goes 11.0@123-11.07.jpg](https://ls1tech.com/forums/attachments/street-racing-kill-stories/565274d1485725027t-lbo-16-ss-goes-11-0-123-11.07.jpg)
This was yesterday on pump E at 75% in +18 DA with the headers.
![LBO 16 SS goes 11.0@123-11.12.jpg](https://ls1tech.com/forums/attachments/street-racing-kill-stories/565275d1485725027t-lbo-16-ss-goes-11-0-123-11.12.jpg)
See what I mean that it just wouldn't 60ft or 1/8 mile. This car has really only been a 22 to 23mph back half car. It has always been a 1/8th monster compared to its back half. The biggest difference yesterday was 26.5mph on the back end. Nothing I did tuning wise changed anything on the front half. I ran about 10 of these 11.12-13's in a row and some were so close I though they gave me the wrong slips.
#1046
TECH Enthusiast
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Those are honest and expected numbers. Not inflated or 'internetz' hype.
They demonstrate driveline losses from running lower gears.
The thing you are doing also demonstrates how hard it is to gain those last few tenths. No bench racing. Best documentation.
#1047
11 Second Club
#1048
Staging Lane
Join Date: Jul 2013
Location: NewHampshire
Posts: 63
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
And I ran into a bad leak down tester the other day, mine was at work and I picked up a cheep one at a local tool store. It was supposed to be a high pressure tester but the % guage would not read right. I did a little research and apparently the % guage was a low pressure guage. I plugged the first port and ran the pressure guage on the second cranked it up to 100 psi and plugged it into the cylinders and basically every psi was a % just like the old ones. Maby it's your issue as well?
#1049
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Thanks for the kind words and encouragement guys. When I get back into town next week I will dig back into it. It is my MAP being down 4 KPA that has me worried. I looked back at a bunch of logs and even on pump 93 in all sorts of weather I am seeing over 101kpa at the hit and no less than 98KPa at 6,500. I think once I find that culprit I will be good. The G/Cyl is a direct reflection of MAP over MAF. MAF is staying close to the same on the runs so there is a definite restriction some where behind it I would assume. I am starting to worry that something was in my stock CAI from storage that got sucked into the motor some how. IDK, I am reaching now. I am also getting the cut out's in to eliminate anything from the AFM valves on.
I will look into that Dynamic tester deal. Maybe my shop owner buddy has one. I do my leak down tester the same way. Set it to 100psi and check the cylinder at three to four different piston heights on the compression stroke.
I am also going to start over from scratch on the tune with 93. I am getting the OLSD VVE lined out first and then bringing in the MAF. I want to get rid of the lean hit at the start. It doesn't hit target afr till about 5K so it is lean all the way through the 60ft. There are some strange AFR spikes and what not during the run. Mainly after the shifts. We are at every ounce counts right now. I am going to find every single one of them.
I will look into that Dynamic tester deal. Maybe my shop owner buddy has one. I do my leak down tester the same way. Set it to 100psi and check the cylinder at three to four different piston heights on the compression stroke.
I am also going to start over from scratch on the tune with 93. I am getting the OLSD VVE lined out first and then bringing in the MAF. I want to get rid of the lean hit at the start. It doesn't hit target afr till about 5K so it is lean all the way through the 60ft. There are some strange AFR spikes and what not during the run. Mainly after the shifts. We are at every ounce counts right now. I am going to find every single one of them.
#1050
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Added headers. I am working through a couple issues on the car now. Headers got me 22/17rw and showed really good data. Had to take it to the dealer for some stuff and got it back "not fixed" with an extra 200 miles or so on it. Now all my data points are down a bit and the car isn't making the power it was when I gave it to them. I will get it dialed in.
#1051
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
A 3,500 stall in this thing would be a game changer. Just that extra 1K rpm would make a world of difference in how this car leaves.
#1053
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Yeah this is awesome hope you see 10s. Idk what cai intake your running but I had issues with one slightly collapsing under load and causing a restriction lowering my map when I was tuning. Took me a real long time to figure out... something to think about
#1054
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'm glad to see that the 6th gen is getting newer Camaro owners back to the track. 5th gens are rare compared to the newer Mustangs at the drag strip around here. I'm sure you will hit 10's with bolt ons and that is great for keeping the competition going.
#1056
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Latest dyno numbers. 492/509rw SAE smoothed to 5. I still have cutouts to go on and I am going to drain the trans and change the filter. I am also going to go back completely through the tune starting with the VVE table. The tq tables are now available as well. So more to come. This is 6th gear on E85. The first run was 498rw but my dyno guy forgot to hook up the tach lead so no tq number. So I threw that run out.
![LBO 16 SS goes 11.0@123-brett-492.jpg](https://ls1tech.com/forums/attachments/street-racing-kill-stories/566538d1486586163t-lbo-16-ss-goes-11-0-123-brett-492.jpg)
Last edited by Pray; 02-08-2017 at 02:38 PM.