1968 Impala Turbo LY6/4L80e Swap - 798 RWHP @ 17 PSI
#241
That boat moves man. I love it!! Phenomenal Build! I would love to do a build like yours with a 1960-1970 Cadillac Coupe Deville, only thing different would be I would want a T-56 set-up. I like the way it looks with the Welds. Your car would look sick with a set of Weld RT-S's!
The wheels are a hangup due cost as usual. I have been eyeing the black center RT-S with a reverse stagger. I love they way they look with 18" in front and a 15" in back. It's just big money though and the car needs some safety upgrades first.
#244
8 Second Club
iTrader: (3)
Very nice build job. I always appreciate owner built cars especially when done very cleanly. And effectively.
Too bad winter is here, I imagine you are jonesing for more passes and getting all that sorted out.
I'm curious about your injector duty cycle.
I'm running what I believe to be similar power numbers. Or whatever it takes to push 3400lbs to 149mph.
I'm also running ID1000's on E85.
But at 60 base. Typical boost referenced setup and I'm at 100% DC.
Maybe your fuel system guy could chime in. You likely have way more pump than I do. Admittedly I'm pushing mine beyond capability.
But the numbers just don't seem to add up.
It's prob in your thread, but what ECU are you running?
Ron
Too bad winter is here, I imagine you are jonesing for more passes and getting all that sorted out.
I'm curious about your injector duty cycle.
I'm running what I believe to be similar power numbers. Or whatever it takes to push 3400lbs to 149mph.
I'm also running ID1000's on E85.
But at 60 base. Typical boost referenced setup and I'm at 100% DC.
Maybe your fuel system guy could chime in. You likely have way more pump than I do. Admittedly I'm pushing mine beyond capability.
But the numbers just don't seem to add up.
It's prob in your thread, but what ECU are you running?
Ron
#245
Very nice build job. I always appreciate owner built cars especially when done very cleanly. And effectively.
Too bad winter is here, I imagine you are jonesing for more passes and getting all that sorted out.
I'm curious about your injector duty cycle.
I'm running what I believe to be similar power numbers. Or whatever it takes to push 3400lbs to 149mph.
I'm also running ID1000's on E85.
But at 60 base. Typical boost referenced setup and I'm at 100% DC.
Maybe your fuel system guy could chime in. You likely have way more pump than I do. Admittedly I'm pushing mine beyond capability.
But the numbers just don't seem to add up.
It's prob in your thread, but what ECU are you running?
Ron
Too bad winter is here, I imagine you are jonesing for more passes and getting all that sorted out.
I'm curious about your injector duty cycle.
I'm running what I believe to be similar power numbers. Or whatever it takes to push 3400lbs to 149mph.
I'm also running ID1000's on E85.
But at 60 base. Typical boost referenced setup and I'm at 100% DC.
Maybe your fuel system guy could chime in. You likely have way more pump than I do. Admittedly I'm pushing mine beyond capability.
But the numbers just don't seem to add up.
It's prob in your thread, but what ECU are you running?
Ron
I am for sure jonesing for a 10 second time slip. I really need brakes and a driveshaft loop. I also want to finish a couple thinks like coating and wrapping the hotside. I rushed that stuff to get it tuned before the snow falls. I am glad I did and was able to shake the car down before winter.
I am running two ZL1 fuel pump modules controlled by the Vapoworx PWM "Pressureworx" system. The second pump turns on via a Hobbs switch at 3 PSI. At idle it produces around 50PSI at about 12" of vacuum. In vacuum, the system will increase 1 PSI per 2" of vacuum lost. So at zero its about 56 PSI. When in boost it goes up 1 to 1. So at 15 it might be as high as 70 PSI, not sure because I haven't looked at it while driving.
My tuner said the injectors were around 80% duty cycle. He did not touch the fuel pressure during tuning. I am running the stock 2008 Express van E38 with a 3 bar SD tune. I would be looking at your system as a whole. the nice thing about the returnless is the simplicity in the plumbing. 2 -6 into a y then a single -8 all the way to the rail. Not much to cause restrictions. I would also check your pump voltages. I have maybe 4 feet of wiring between the battery/controller/pump so my losses are minimal. Everything is crimped AND soldered.
#247
Alex..........You should get to know Larry @ ASSC Racing in Lake Villa........one of the best Tuners around......
Ken
Ken
#254
Let's put it this way.........Larry tuned the ASSC Mustang that went to Orlando for the World Street Nationals and they won the Pro Class three of the four years they went there.......The other year they were runner up to Shannon Jenkins,,,,,,,,,
Ken
#255
TECH Enthusiast
Nice car! My brother an I did a stock 4.8 and 4l80e swap with intentions of boost in a 68 Biscayne this past summer. Its not quite as nice as yours and a budget build lol so its a little messy under the hood. It was pretty straight forward and not too difficult, but let me know if you need any pictures or advice. Good luck!
#256
My winter has officially started with the teardown again. It's ridiculous to think I purchased a big heavy car like this just so I wouldn't feel the need to modify it. It's had a major project every year since I purchased it in 2012.
First on the list was the torque converter lockup. I spent extra money on a triple disk converter so I am determined to get it working. I thought the input shaft O-ring might be the culprit since it was hard to get the converter seated on it plus I had the debacle with the loose converter getting seized on the crank. I called Jake for one last tip and he said first thing to check is the TCC apply valve and make sure its not stuck. I drained the fluid and dropped the pan. I was amazed at how clean the fluid still is and the fact that there is zero sediment in the pan. Usually from break in you get some but this thing is spotless. The fluid looks like that because its clear John Deere fluid with about a quart of Dextron mixed in.
I pulled the TCC PWM solenoid and was confused at first because I stuck a screwdriver in and it was moving but seemed really far in there. I quick check with a mirror revealed the spring was facing the access hole where the valve should be. At this point I dropped the valve body to confirm that I installed the valve and spring backwards as shown in the photo. The spring goes in first and the valve second. I am 99% sure this was my lockup issue.
Super happy that I don't have to remove the trans I got to work on the hot side. The headers, crossover, and turbine housing will get sent out for high temp ceramic. The Downpipe will get some lava wrap. I have an urge to throw a billet wheel on the turbo, you know....because racecar but I have to draw the line somewhere.
First on the list was the torque converter lockup. I spent extra money on a triple disk converter so I am determined to get it working. I thought the input shaft O-ring might be the culprit since it was hard to get the converter seated on it plus I had the debacle with the loose converter getting seized on the crank. I called Jake for one last tip and he said first thing to check is the TCC apply valve and make sure its not stuck. I drained the fluid and dropped the pan. I was amazed at how clean the fluid still is and the fact that there is zero sediment in the pan. Usually from break in you get some but this thing is spotless. The fluid looks like that because its clear John Deere fluid with about a quart of Dextron mixed in.
I pulled the TCC PWM solenoid and was confused at first because I stuck a screwdriver in and it was moving but seemed really far in there. I quick check with a mirror revealed the spring was facing the access hole where the valve should be. At this point I dropped the valve body to confirm that I installed the valve and spring backwards as shown in the photo. The spring goes in first and the valve second. I am 99% sure this was my lockup issue.
Super happy that I don't have to remove the trans I got to work on the hot side. The headers, crossover, and turbine housing will get sent out for high temp ceramic. The Downpipe will get some lava wrap. I have an urge to throw a billet wheel on the turbo, you know....because racecar but I have to draw the line somewhere.
#257
TECH Senior Member
iTrader: (7)
The new version of Holley software was released today and it gives the ability to run an ethenol sensor and adjust boost, fuel, and timing accordingly. Just saying...
Andrew
Andrew
#258
I almost pulled the trigger on HP Tuners but kept thinking about your prodding on the Holley. That would be the hot setup right there. It will have to wait though, I just blew a mad wad of cash on some parts that will hopefully show up in about a week.
#259
Alocker,
That " line" you mentioned kinda disappears once you toss on a turbo. LOL Do you recall the inlet size and length of that airfilter ?
Thanks,
Jim
That " line" you mentioned kinda disappears once you toss on a turbo. LOL Do you recall the inlet size and length of that airfilter ?
Thanks,
Jim