BARRACUDA1968
Well-Known Member
- Joined
- May 4, 2011
Finally got the car to the track after 2 years. I had a good time but not too impressed with the combo at this point but I'll get there.
First pass was 0 boost off the line at a 2.0 60 and 7.9 at 90 mph. I'm using old slicks but hooking ok just no boost.
2nd pass I tried to spool it at the line and according to the PL I got maybe 3 psi? 1.8 60 7.7 at 91 mph
It was the same story for the next few passes. My PL kept shutting off at launch so I only managed to get one full run but on the 2nd run I glanced at the boost gauge at it was 15/16 until 3rd and then creped to 18/19.
This is where is got interesting. 3rd pass I turned the actuator 2 full turns. The 60 dipped in to the 1.7's and I got a tad more mph. Boost was still around 16 psi until 3rd gear and crept to 18/19.
4th pass was same setting and pushed the car through the light trying to build boost. I got the gauge to hit maybe 3 or 4 pounds and the car pushed through so I let off and put the car a little sideways and just made my pass.
5th pass I turned the actuator in another 2 full turns. Total of 4 now. 1.8 60 7.7 at 90 mph. I watched boost on this pass and now I saw 16/17 until 3rd and it maxed at 19 psi
My thinking at this point is to get the boost to come on quicker by turning in the actuator rod. I wasn't increasing full boost but I did see boost increase through 1st and 2nd gear by doing this. I caught a log on this pass thankfully. The log looked good so I decided to turn the actuator in 2 more full turns. 6 total.
This was the last pass so I did a John Force burn out and built as much boost as I could without pushing the car. 1.76 60 7.5 at almost 92 mph. Boost was closer to 17/18 1st and 2nd gear and maybe 20 in 3rd. My PL shut off again so no data. I had 0 KR all day accept one blip on the 5th pass I think when the car shifted from 2nd to 3rd.
I let the car shift itself all day so I may pick up a little if I did the 2-3 shift myself. My tranny is getting lazy there which I expected. It's not built for this set up but holding on for now.
So what did I learn? Well I need to get the 60 down in the 1.5's My slicks are old but I don't think is my biggest issue. Some how I got to be able to build boost at the line. It looks like my convertor is stalling to 2700 rpm on the brake and flashing to 3100 at launch. Boost comes on real hard from there but I'm still under 17 psi at the top of 1st gear.
I'll post up a log from my 5th run so you guy's can take a look.
Maybe some kind of boost controller will help I don't know? It seemed like my brakes were holding but I could be wrong there too.
Any advice would be appreciated. The car's got a lot left in it but until I get the 60 figured out what's the point.
![](/proxy.php?image=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv218%2FBARRACUDA1968%2FCIMG3063_zpsxcnzuqnk.jpg&hash=5ba38b5cb6fbe40a28246bcc64ae09f2)
First pass was 0 boost off the line at a 2.0 60 and 7.9 at 90 mph. I'm using old slicks but hooking ok just no boost.
2nd pass I tried to spool it at the line and according to the PL I got maybe 3 psi? 1.8 60 7.7 at 91 mph
It was the same story for the next few passes. My PL kept shutting off at launch so I only managed to get one full run but on the 2nd run I glanced at the boost gauge at it was 15/16 until 3rd and then creped to 18/19.
This is where is got interesting. 3rd pass I turned the actuator 2 full turns. The 60 dipped in to the 1.7's and I got a tad more mph. Boost was still around 16 psi until 3rd gear and crept to 18/19.
4th pass was same setting and pushed the car through the light trying to build boost. I got the gauge to hit maybe 3 or 4 pounds and the car pushed through so I let off and put the car a little sideways and just made my pass.
5th pass I turned the actuator in another 2 full turns. Total of 4 now. 1.8 60 7.7 at 90 mph. I watched boost on this pass and now I saw 16/17 until 3rd and it maxed at 19 psi
My thinking at this point is to get the boost to come on quicker by turning in the actuator rod. I wasn't increasing full boost but I did see boost increase through 1st and 2nd gear by doing this. I caught a log on this pass thankfully. The log looked good so I decided to turn the actuator in 2 more full turns. 6 total.
This was the last pass so I did a John Force burn out and built as much boost as I could without pushing the car. 1.76 60 7.5 at almost 92 mph. Boost was closer to 17/18 1st and 2nd gear and maybe 20 in 3rd. My PL shut off again so no data. I had 0 KR all day accept one blip on the 5th pass I think when the car shifted from 2nd to 3rd.
I let the car shift itself all day so I may pick up a little if I did the 2-3 shift myself. My tranny is getting lazy there which I expected. It's not built for this set up but holding on for now.
So what did I learn? Well I need to get the 60 down in the 1.5's My slicks are old but I don't think is my biggest issue. Some how I got to be able to build boost at the line. It looks like my convertor is stalling to 2700 rpm on the brake and flashing to 3100 at launch. Boost comes on real hard from there but I'm still under 17 psi at the top of 1st gear.
I'll post up a log from my 5th run so you guy's can take a look.
Maybe some kind of boost controller will help I don't know? It seemed like my brakes were holding but I could be wrong there too.
Any advice would be appreciated. The car's got a lot left in it but until I get the 60 figured out what's the point.
![](/proxy.php?image=http%3A%2F%2Fimg.photobucket.com%2Falbums%2Fv218%2FBARRACUDA1968%2FCIMG3063_zpsxcnzuqnk.jpg&hash=5ba38b5cb6fbe40a28246bcc64ae09f2)
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