10-01-2023, 10:49 AM | #1 |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Finally got a 9!
Went to street car takeover indy yesterday to run street fighter. Optimistic that all the numbers it has done so far says it should be able to run a 9 in the 1/4 and be competitive in street racer daily. I have not ran 1/4 prepped front side since putting the turbos on. Well first pass of qualifying it went down and clicked off a 9.62@147. I was shooting for 10lbs of boost, ended up around 11. I did not run q2 as I figured out the converter is refusing to lock up. Tried tweaking on the tune, going over the car but couldn’t come up with anything. So I lowered shift points more to try to keep it off the limiter and sent it for eliminations. I’m launching off a thumb button 2 step with foot brake and that’s not the easiest to stage on a pro tree. I was late and the 60’ suffered, went 9.75 @ 147. All in all my family and I had great time and I hit a personal goal from the beginning the season to run a 9. Highly recommend SCT to anyone thinking about going in the future!
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
10-01-2023, 11:36 AM | #2 |
Drives: 2022 Camaro LT1 A10 Join Date: Nov 2015
Location: new england
Posts: 374
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Dude you BURRIED it!
I don't remember....is that a stock stall? Congrats man!
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2022 Camaro LT1 A10 - Drag Pack/AxleBack -11.849@118.67MPH/1.798 60' 2001 Camaro SS A4 - HCI/Stall/Bolt-on/Gear/Tune/DR/Diet - 429HP/392TQ - 10.99@123.58MPH/1.584 60' 1998 Camaro Z28 A4 - Bolt-on 1999 Camaro Z28 A4 - Stock FJB |
10-01-2023, 11:47 AM | #3 |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Thanks! I just put a 3600-3800 stall circle d converter in the car. Power comes in so much faster now, I'm having trouble keeping it from spinning on street hits. These were the first clean hits and revealed the lock up issue.
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
10-01-2023, 07:26 PM | #4 |
Drives: 2016 Camaro 2SS "Convertibobble" Join Date: Mar 2022
Location: Peoria, IL
Posts: 280
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Love how the thing looks "right off the showroom floor", i.e. no "look at me"/cosmetic-only add-ons...and then you go out and drop a 9.62 on people. BEAUTY!
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'16 2SS Garnet Red ~24K
"Mods": GM wind deflector, home-made rear seat delete & platform, not-quite garnet red key fob cover (+10rwhp) '99 4Runner 367K '94 ST1100 146K |
10-01-2023, 08:37 PM | #5 |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,760
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Congrats! Welcome to the club.
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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10-02-2023, 09:07 AM | #6 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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Nice pass. You may find that it's easier on the trans to simply not lock converter at wot. I know locking the converter translates to more power making it to the rear tires but it's really hard on the trans/converter when you start making big power.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-02-2023, 12:31 PM | #7 |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Thank you guys!
KingLT1 I was thinking about reaching out to you directly with this one. I understand what you're meaning and why you would leave the converter unlocked, in certain situations. Right now i'm thinking there's something mechanically wrong. After 1st it's just riding the converter 1500-1800rpm tcc slip the whole way down. I lowered shift points more and more and it's still getting up higher rpm than I'd like.
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
10-02-2023, 01:54 PM | #8 | |
Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021
Location: Missouri
Posts: 929
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Quote:
Hopefully yours is something different. What does your line pressure read while its slipping? Does it look like it's trying to apply the TCC with high line pressure? 114 psi is stock I think... mine was holding at 200 psi with the bigger 4.13 PC pulley, but not any more with the 3.7 pulley. Holds fine at part throttle. Also, CONGRATS on the 9!
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2017 50th Anniversary Edition | P1X Stage 2
DSX Aux Low Side | LT4 high side | Flex Fuel TooHighPsi Port Injection (installed & tuning) CircleD 3K Stall | QA1 CF Driveshaft Forgestar F14 Drag 17x10 NT555R2 305/45/17 Rear Forgestar F14 18x8 NT555G2 235/50/18 Front 10.84@131 w/4.13" pulley ??.??@??? w/3.7" pulley (installed & tuning) |
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10-02-2023, 02:27 PM | #9 | |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Quote:
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
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10-03-2023, 04:43 PM | #10 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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That's baby is starting to haul the mail, you didn't just break into the 9s, you blew into the mid 9s. Congrats on a great pass, keep it up cause I'm sure there is more left.
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
Last edited by laynlo15; 10-03-2023 at 05:00 PM. |
10-04-2023, 05:48 PM | #11 |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Thank you laynlo15! It was definitely a big feeling of relief and accomplishment. Now I'm looking south for races going on to keep the season going. It's getting to the end around here (Chicagoland).
After talking to some people more knowledgeable on this platform than I the last couple days, I think I have a handle on the lock up issue. I believe it was from my trans tuning strategy. Going about it a different way has yielded some positive results. I need to do some street hits or get to a track to see if it is going to help at wot and then I will try to put some more power in it. Turbos and fuel system definitely have more room in them.
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
10-07-2023, 06:56 AM | #12 | |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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Quote:
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
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10-08-2023, 07:36 PM | #13 |
Drives: Chevy Camaro Join Date: Sep 2022
Location: IN
Posts: 193
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Finally got to test the converter lock up at wot. It worked! Adjusting the Desired Pressure and Apply Ramp tables and not messing with the max pressure tables, nor reg and offset tables got the converter working again. You can see mine stock calibration did not use those tables stock. I tried using them instead of the stock setup and the car did not like it. Switching back and adjusting the other tables had great results.
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'20 Camaro LT1
Twin 67/62 turbo 401(L8t) Texas speed forged piston & rod, BTR stg1 turbo cam, holley ultra lo, port injection, circle d 3600 stall, hoosier bias ply quick time pro's on racestar recluse wheels 1.45 4.01 6.07@120.74 9.28@153.43 '94 Camaro Z28 6mt cc306 cam, 4:10's, longtubes with x pipe, getting an engine rebuild |
10-09-2023, 06:44 AM | #14 |
Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021
Location: Missouri
Posts: 929
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Nice! Thanks for the follow up. Still running mine unlocked until i can get to the track at least once, then maybe I'll mess with mine a bit more.
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2017 50th Anniversary Edition | P1X Stage 2
DSX Aux Low Side | LT4 high side | Flex Fuel TooHighPsi Port Injection (installed & tuning) CircleD 3K Stall | QA1 CF Driveshaft Forgestar F14 Drag 17x10 NT555R2 305/45/17 Rear Forgestar F14 18x8 NT555G2 235/50/18 Front 10.84@131 w/4.13" pulley ??.??@??? w/3.7" pulley (installed & tuning) |
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