Induction system enhancement
07-12-2017, 12:47 PM
#22
Weird graph I know, however it pulled strong and clean till he lifted at 6500 according to my tuner. Same guy. Same dyno
First pull was 454 but went lean upstairs. He said he added 10% to the injectors and it responded with 464 SAE although torque did drop from 412 previously to 389, perhaps the way the steeper gears lug/load. Whatever. I'm happy. Much greater jump than I expected
07-12-2017, 01:39 PM
#23
Thanks a lot NAVY. Been quite a lengthy process and this final step proved that I needed to address the inlet side of my combo.....just sucks that I trashed the rear end and changed out the gears preventing a true back to back test here.
My air box mod was huge during this phase, however; The LS6 intake w/LS2 TB snout and TPIS 90mm upgrade also gave this hungry bitch a bunch more air as well.
The tuner did have to fatten the injectors by 10%......putting my used Bosch 3800 garbage at roughly 87% IIRC.
Special thanks goes to Jackson at TPIS for his "custom" throttle body work to make it look like a GM production piece. My idea but his artistry for sure..
I would suggest anyone looking for that "stock" appearance improvement to their induction system to give them a call at 952-448-7988
My air box mod was huge during this phase, however; The LS6 intake w/LS2 TB snout and TPIS 90mm upgrade also gave this hungry bitch a bunch more air as well.
The tuner did have to fatten the injectors by 10%......putting my used Bosch 3800 garbage at roughly 87% IIRC.
Special thanks goes to Jackson at TPIS for his "custom" throttle body work to make it look like a GM production piece. My idea but his artistry for sure..
I would suggest anyone looking for that "stock" appearance improvement to their induction system to give them a call at 952-448-7988
07-13-2017, 08:16 AM
#28
Everyone tells me that the change to the 3.90s does change the way it applies power to the tire but I do agree that this dyno sheet looks hideous compared to the one from this same shop back in November.
The car runs too well and feels strong for it to have all of a sudden **** itself
07-13-2017, 02:41 PM
#29
TECH Fanatic
Join Date: Aug 2009
Location: Coast of San Mateo County Between Pacifica & HMB
Posts: 1,815
Received 215 Likes
on
128 Posts
I would make a pull on a different Dyno, and then ask for the
Original one to be redone. You didn't get what you paid for.
I agree with diet coke the Dyno is jacked up! You obviously
Have NOT lost power,
despite Hammers attempts at humor.
Original one to be redone. You didn't get what you paid for.
I agree with diet coke the Dyno is jacked up! You obviously
Have NOT lost power,
despite Hammers attempts at humor.
07-13-2017, 03:14 PM
#30
guess I'll just try a different dyno then......I can assure you it did not lose power.....The intake mod, TB, and airbox mods made the car feel noticeably stronger even with the 3.42s
Everyone tells me that the change to the 3.90s does change the way it applies power to the tire but I do agree that this dyno sheet looks hideous compared to the one from this same shop back in November.
The car runs too well and feels strong for it to have all of a sudden **** itself
Everyone tells me that the change to the 3.90s does change the way it applies power to the tire but I do agree that this dyno sheet looks hideous compared to the one from this same shop back in November.
The car runs too well and feels strong for it to have all of a sudden **** itself
07-13-2017, 09:25 PM
#31
10 Second Club
Lol besides the good ball curve at the top it shows it lost power. But I'd be more inclined to agree it's jus the dyno
07-13-2017, 09:47 PM
#32
Yeah. So more story to it. LOL
they moved the dyno recently from one shop to another
I have the pull video but would need to you tube it in order to post it.
I texted the tuner today and said, hey it sure as hell sounds like its revving considerably higher than 6200 or 6500. He goes. Yep 7 grand is 6500 on this dyno. So I guess it's all bullshit really. Only good thing is im not out any money
Guess I'll be rolling it on something else but it runs really well; so happy for now and I truly apologize for the absolute inaccurate data of this test
they moved the dyno recently from one shop to another
I have the pull video but would need to you tube it in order to post it.
I texted the tuner today and said, hey it sure as hell sounds like its revving considerably higher than 6200 or 6500. He goes. Yep 7 grand is 6500 on this dyno. So I guess it's all bullshit really. Only good thing is im not out any money
Guess I'll be rolling it on something else but it runs really well; so happy for now and I truly apologize for the absolute inaccurate data of this test
10-01-2017, 10:11 AM
#34
Ever since I had the drive line out to replace the trashed rear end it's had an annoying header gasket leak. Decided after about two thousand street miles on this thing to change the oil & filter, replace the header flange/cylinder head gaskets and ditch my old *** spark plugs that I re-used. Plus my buddy and his friend who helped when putting the car back together cross threaded one of my header bolts The old "get them all in and started before tightening any of them" trick
So upon removal of my wires on the driver's side, the rear two (cylinders 5&7) where not even clicked onto the plugs AND the rear spark plug was hand loose and half backed out. They didn't know about the sliding locking shield on the plug wires. Great to have help however UGGHH
Any possibility that these two things could have contributed to my torque loss and then cartoon *** horsepower spike at the end once wheel speed came up and "load" decreased ???
10-01-2017, 03:47 PM
#36
TECH Senior Member
Nawwww.... had nothing to do with it...... lol
When's the next dyno session?
When's the next dyno session?
10-01-2017, 09:18 PM
#38
TECH Senior Member