Powerglide with turbo 5.3
Teching In
Joined: May 2020
Posts: 17
Likes: 1
Still really doesn’t answer how fast it comes on. Are you just using the wastegate or are you able to put pressure on the dome? You need to shift that thing AT LEAST 6500. Can’t lug the 5.3s, they don’t make a ton of torque to start with. My cam is smaller than yours (218, .570) and it pulls to 6700-7000 no sweat. I’m a t4 475 small wheel.
Teching In
Joined: Jul 2015
Posts: 38
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From: Il
Are you on the gas scale or E for AFR? (Looks fat either way).
Also, that things not making much vacuum at idle (79kpa). Should see more like high 50s Kpa. I’d look for a vacuum leak. Found too that it makes boost way to slow to give you a decent ET. How is the boost controller set up?
Did you degree the cam?
Also, that things not making much vacuum at idle (79kpa). Should see more like high 50s Kpa. I’d look for a vacuum leak. Found too that it makes boost way to slow to give you a decent ET. How is the boost controller set up?
Did you degree the cam?
Teching In
Joined: May 2020
Posts: 17
Likes: 1
Are you on the gas scale or E for AFR? (Looks fat either way).
Also, that things not making much vacuum at idle (79kpa). Should see more like high 50s Kpa. I’d look for a vacuum leak. Found too that it makes boost way to slow to give you a decent ET. How is the boost controller set up?
Did you degree the cam?
Also, that things not making much vacuum at idle (79kpa). Should see more like high 50s Kpa. I’d look for a vacuum leak. Found too that it makes boost way to slow to give you a decent ET. How is the boost controller set up?
Did you degree the cam?
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Verdad Gallardo Teching In
Joined: May 2020
Posts: 17
Likes: 1
towards the end of 1st gear the rpm is jumpy because its a **** track and there's bumps lol but on the street it is smoother pulling thru the rpm range my main concern was wen I dumped off the transbrake it looks like I'm just footbraking. Maybe I can look into my time slip and logs and see how much converter slip there is based on mph and rpm if I ran say 7.50 can I check my timeslip mph and the logged rpm 7.5sec after I released the transbrake?
Get that map sensor scaled correctly. That’ll kill everything if it’s off. Send me the tune and I’ll look. I’m not super familiar with hptuners, but I’ll see if anything jumps out. Your boost curve looks like mine on the street. I’ve run low 7s at 113 on the street on a Nitto Drag radial. No reason you should be a second faster than your are now at the track. Gotta get it to make boost quicker. I’ll bet the gates are cracking early. I run onboard air so boost control is wicked tunable and accurate.
Teching In
Joined: May 2020
Posts: 17
Likes: 1
towards the end of 1st gear the rpm is jumpy because its a **** track and there's bumps lol but on the street it is smoother pulling thru the rpm range my main concern was wen I dumped off the transbrake it looks like I'm just footbraking. Maybe I can look into my time slip and logs and see how much converter slip there is based on mph and rpm if I ran say 7.50 can I check my timeslip mph and the logged rpm 7.5sec after I released the transbrake?
Don’t bother with that converter. You’ll end up regretting it. The log you sent is using the E85 Stoich. That being said, you should never see under 7.3 on the E scale. That’s roughly 11.0 on the gas scale. You’re all the way down to 5.75 on the E scale. That’s richer than 9:1 on the gas scale.
Now for the converter.....you get on the two step within two seconds of getting it to the floor. That’s not bad. You leave on 8 psi (more than I have). Now the bad part, it flashes to 4700 and tugs the engine down. You can see where it rides the converter at 4700 for a bit. That’s well below any good torque. The thing is the fallback rpm isn’t horrible, however, it’s hard to tell because you short shifted it. You need to make a pass and wind it up to 6500-7000 and see what that does. You don’t want to adjust or swap a converter until you’re making the power you want. IMO it’s way too tight off the brake, by at least 700 rpms.
Now all of this could be do to it being so rich it’s not making any power. So here’s what I’d do....make sure the map is reading correctly, fix the fueling to something that makes more sense (can’t help you there in hptuner land), make a rip and see how the converter acts and go from there.
Now for the converter.....you get on the two step within two seconds of getting it to the floor. That’s not bad. You leave on 8 psi (more than I have). Now the bad part, it flashes to 4700 and tugs the engine down. You can see where it rides the converter at 4700 for a bit. That’s well below any good torque. The thing is the fallback rpm isn’t horrible, however, it’s hard to tell because you short shifted it. You need to make a pass and wind it up to 6500-7000 and see what that does. You don’t want to adjust or swap a converter until you’re making the power you want. IMO it’s way too tight off the brake, by at least 700 rpms.
Now all of this could be do to it being so rich it’s not making any power. So here’s what I’d do....make sure the map is reading correctly, fix the fueling to something that makes more sense (can’t help you there in hptuner land), make a rip and see how the converter acts and go from there.
Teching In
Joined: May 2020
Posts: 17
Likes: 1
Don’t bother with that converter. You’ll end up regretting it. The log you sent is using the E85 Stoich. That being said, you should never see under 7.3 on the E scale. That’s roughly 11.0 on the gas scale. You’re all the way down to 5.75 on the E scale. That’s richer than 9:1 on the gas scale.
Now for the converter.....you get on the two step within two seconds of getting it to the floor. That’s not bad. You leave on 8 psi (more than I have). Now the bad part, it flashes to 4700 and tugs the engine down. You can see where it rides the converter at 4700 for a bit. That’s well below any good torque. The thing is the fallback rpm isn’t horrible, however, it’s hard to tell because you short shifted it. You need to make a pass and wind it up to 6500-7000 and see what that does. You don’t want to adjust or swap a converter until you’re making the power you want. IMO it’s way too tight off the brake, by at least 700 rpms.
Now all of this could be do to it being so rich it’s not making any power. So here’s what I’d do....make sure the map is reading correctly, fix the fueling to something that makes more sense (can’t help you there in hptuner land), make a rip and see how the converter acts and go from there.
Now for the converter.....you get on the two step within two seconds of getting it to the floor. That’s not bad. You leave on 8 psi (more than I have). Now the bad part, it flashes to 4700 and tugs the engine down. You can see where it rides the converter at 4700 for a bit. That’s well below any good torque. The thing is the fallback rpm isn’t horrible, however, it’s hard to tell because you short shifted it. You need to make a pass and wind it up to 6500-7000 and see what that does. You don’t want to adjust or swap a converter until you’re making the power you want. IMO it’s way too tight off the brake, by at least 700 rpms.
Now all of this could be do to it being so rich it’s not making any power. So here’s what I’d do....make sure the map is reading correctly, fix the fueling to something that makes more sense (can’t help you there in hptuner land), make a rip and see how the converter acts and go from there.
Teching In
Joined: May 2020
Posts: 17
Likes: 1
bad news but might be good news well. went to the track and made a pass and shifted at 6500 it seemed to lay over around 6200 but after the shift it pulled hard but still slow lol. ill put a log of the pass I believe I burned a piston or broke a ringland. it sounds muffled and kinda hollow but hopefully when I open it up and check there is more than one and maybe that's why it wasn't running its potential. idk but either way I get to try it all over. haha can someone tell me if the cylinder airmass grams is looking where it should be. its the highest ive ever saw it.
I can tell you this, running super rich is as bad as running super lean. Rich breaks ringlands. Just ask the nitrous guys! Sorry about your luck, but I hope you find something. You don’t happen to have any cheap flex joints in your hot side do you? Maybe one collapsed.
Teching In
Joined: May 2020
Posts: 17
Likes: 1
no I don't have and flex pipes in the hot side. But its been super rich a few times ill keep that in mind for once its fixed. On e85 on the gas scale I shoot for 11.3 it does dip lower and I saw on the log it went in the tens above 6k but I had a terribly weak wastegate spring and replaced them and boost is at spring pressure(about 15lbs) in about 2secs after leaving the line. I didn't gap rings on this engine maybe that was it.