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Old 04-11-2019, 09:33 PM   #281
OneBadvATE
 
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Quote:
Originally Posted by RobZL1 View Post
Solid! I bet that feels just a **little** more peppy than when you dropped it off. LOL!

EDIT: Holy crap look at that boost! Time for some heads, eh??
I actually haven't even picked it up yet, so I can only imagine it for now lol. They just sent over the dyno and I just had to post it up.

Yeah already saving for a clutch at a minimum, but heads will likely make the list too to help drop that boost and keep the temps down.
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Old 05-15-2019, 09:00 PM   #282
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2015 M6 ZL1 8k miles
Kooks headers with high flow cats
Borla Atak cat back
Cold air inductions intake.
Tuned by Speed Inc
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Old 08-11-2019, 04:51 PM   #283
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2012 zl1 6 speed manual 2 inch arh headers no cats, 5 inch rpm intake and custom tune 518hp 505tq
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2012 Camaro ZL1 6 speed 2 inch arh headers no cats 5inch rpm intake 518hp 505tq
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Old 08-26-2019, 09:11 AM   #284
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Quote:
Originally Posted by 1LEric View Post
E85 would be a lot more than 50-60 closer to 100 . Are these numbers posted on pump gas ?
Do we have a thread for E85 on the ZL1? I've heard 25-30 rwhp and also 75-100 rwhp with bolt ons. Seems inconsistent...
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Old 08-28-2019, 11:50 AM   #285
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2013 ZL1 M6, 34k Miles
485whp 526wtq
74 Degrees Ambient Temp, 91% Humidity, Hood Closed, 4th Gear Pull, No Cool Down (30 min drive and put right on the dyno).
Only "power mod" is the 63-3079 K&N Intake
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Old 08-28-2019, 12:37 PM   #286
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Looks like you've either got some timing pull, knock retard or AFR richening that started happening around 4300 based on the way the whole curve took a step-shift downwards. Did they happen to do a log?
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Old 08-28-2019, 01:42 PM   #287
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Quote:
Originally Posted by RobZL1 View Post
Looks like you've either got some timing pull, knock retard or AFR richening that started happening around 4300 based on the way the whole curve took a step-shift downwards. Did they happen to do a log?
Yep, that's why the peak HP went down... Should have nearly matched the torque.

It was super hot and muggy that day, and the car literally was placed on the dyno as soon as I showed up, so it never cooled down. No knock, I have that monitored on my Aeroforce. IAT2's never went above 125-135 either.

Now this was an outside dyno event, and it rained that morning. The rollers were wet, and I was the first car on the dyno. I was thinking it could have possibly been due to that. I also made sure traction and stability control were both off, but the dyno operator had to shut the car down while he strapped her down. I asked if he made sure he had the traction button in for 7 sec's vs placing it into PTM. He said yes, but he looked awfully confused when he was pressing the traction button.

Question...

Does the ZL1 utilize the IAT1's (before the blower), or IAT2's (after the blower) to determine timing retard when temps get hot? I know on my Cobalt SS Supercharged, the IAT2's were the critical temps when it came to timing and power, but I see a lot of members on here only mention IAT's which is not specific. If that's the case, it could be the reason for the dip in my power curve. While IAT2's stayed in the 125-135 range, IAT1's were a good deal higher.
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Last edited by VRZL113; 09-04-2019 at 12:07 PM.
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Old 10-09-2019, 02:12 PM   #288
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2013 6 speed, 95,000 miles. Was late May in the south when it was on the rollers (hot).


VMax ported throttle body
Adjusted boost Bypass valve
Cat delete
K&N intake
No tune



540rwhp and 500 tq SAE on a dynojet


Car trapped 121mph in this configuration in June




Last edited by FASTFATBOY; 06-11-2020 at 06:19 PM.
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Old 01-03-2020, 01:10 AM   #289
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Sick Numbers mine are similar




Quote:
Originally Posted by OneBadvATE View Post
2015 Camaro ZL1 M6 11k miles - 769RWHP 755RWTQ

Baseline Mods:
Kooks 2" headers w/o cats
Roto-fab intake w/ big gulp
160 degree t-stat
Tuned by New Age Hotrods

Current Mods:
RPM 5" intake
Kooks 2" headers w/o cats
9.1" lower
2.55" upper
Kong performance ported blower/snout
NW 102mm TB
Afco hx w/ fans
RPM stage 3 cam package
ID1050x injectors
160 degree t-stat
Tuned by Fran at RPM
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McLeod RXT 1200
Trunk Tank w/ rule 3700
791/776 E85


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Old 01-07-2020, 10:50 PM   #290
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607whp on Wongs Mustang dyno:

BTR stage 3 cam/.660 springs/BTR PR's
2.50" upper pulley only @12lbs
ID850's
Speed Engineering 1-7/8 LT's
No cats stock NPP
Afco HX with fans
Roto-fab CAI


Last edited by FasNuf; 01-07-2020 at 11:12 PM.
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Old 01-07-2020, 11:09 PM   #291
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Question...

Does the ZL1 utilize the IAT1's (before the blower), or IAT2's (after the blower) to determine timing retard when temps get hot? I know on my Cobalt SS Supercharged, the IAT2's were the critical temps when it came to timing and power, but I see a lot of members on here only mention IAT's which is not specific. If that's the case, it could be the reason for the dip in my power curve. While IAT2's stayed in the 125-135 range, IAT1's were a good deal higher.
[/QUOTE]
.......
IAT2's retard timing. The temp at which timing is retarded is determined by your tune and can be modified if you know someone with HPtuners or the like. Care should be taken. Better to reduce IAT2's with a better intercooler and CAI, Icebox and intercooler reservoir will help cool too. If you're in a warm climate, you can reduce the intercooler coolant ratio to be more water and less antifreeze. Some run straight water since it's not shared with the engine coolant it won't boil.
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Old 01-08-2020, 11:43 AM   #292
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Quote:
Originally Posted by FasNuf View Post
Question...

Does the ZL1 utilize the IAT1's (before the blower), or IAT2's (after the blower) to determine timing retard when temps get hot? I know on my Cobalt SS Supercharged, the IAT2's were the critical temps when it came to timing and power, but I see a lot of members on here only mention IAT's which is not specific. If that's the case, it could be the reason for the dip in my power curve. While IAT2's stayed in the 125-135 range, IAT1's were a good deal higher.
.......
IAT2's retard timing. The temp at which timing is retarded is determined by your tune and can be modified if you know someone with HPtuners or the like. Care should be taken. Better to reduce IAT2's with a better intercooler and CAI, Icebox and intercooler reservoir will help cool too. If you're in a warm climate, you can reduce the intercooler coolant ratio to be more water and less antifreeze. Some run straight water since it's not shared with the engine coolant it won't boil.[/QUOTE]


Thanks for the reply. I had all the cooling mods you mention on my Cobalt SS. After doing further research the step down my graph took was due to the cat protection. As I mentioned in my original dyno post it was a disgusting muggy day when I performed the pulls (74 degrees 91% humidity). The car was strapped down to the dyno with no cool down after a 30 min drive with two back to back pulls (hood closed). During normal data logging on the street, I notice no adverse KR or high IAT2 temps, and the car runs very strong. I'll re-dyno this spring or fall and see how she performs.
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Old 04-20-2020, 03:41 PM   #293
neko95
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Auto with 15K miles
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Old 04-30-2020, 07:18 AM   #294
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nice numbers neko. What all was done to the car for the 573/586 numbers
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