So, I added a pulley and a tune to my 2018 Zl1 - Page 2

Wind Rider · 09-10-2020, 12:04 PM

Quote:

Originally Posted by atiprocharger

no heat issues or anything with mine......

Brilliant. I'm going for a similar mods. Did the guys in Vengeance do the tuning? I wonder if they do remote tune.

DegaZL1 · 09-10-2020, 12:16 PM

Great gains....cost-effective gains !

Does going to the smaller 2.3" pulley require a smaller belt to spin it without slipping ?
Or can the original belt designed for the original 2.5" pulley be used/retained ?

atiprocharger · 09-10-2020, 12:55 PM

Quote:

Originally Posted by Wind Rider

Brilliant. I'm going for a similar mods. Did the guys in Vengeance do the tuning? I wonder if they do remote tune.

No idea if they do remote tuning....

SJFGTO · 09-10-2020, 01:25 PM

Quote:

Originally Posted by Wind Rider

Brilliant. I'm going for a similar mods. Did the guys in Vengeance do the tuning? I wonder if they do remote tune.

The last time I knew they did remote tuning. Don’t know if that is still true.

Revalot · 09-10-2020, 05:05 PM

Quote:

Originally Posted by KingLT1

Nice gains, but it's leaning over up top for sure.

Just asking how can you tell ? It doesn't show the air fuel ratio !
Could be traction issues, etc ! Just asking !

Flowtie1 · 09-10-2020, 08:23 PM

Ted j. Told me the pulley swap gains down low but will fall off a bit up top. Plus more heat generated. That is why I am on the fence

KingLT1 · 09-10-2020, 09:04 PM

Quote:

Originally Posted by Revalot

Just asking how can you tell ? It doesn't show the air fuel ratio !
Could be traction issues, etc ! Just asking !

Compare the power curves on the dyno graph. power peaks about 500rpm earlier with the pulley. The curve is shifted left. I don't mean anything negative by it, but a larger or even ported supercharger would likely keep making power out further is all.

Wind Rider · 09-10-2020, 11:54 PM

Quote:

Originally Posted by DegaZL1

Great gains....cost-effective gains !

Does going to the smaller 2.3" pulley require a smaller belt to spin it without slipping ?
Or can the original belt designed for the original 2.5" pulley be used/retained ?

You don't need a smaller belt. You will use the original.

nighttowl · 09-11-2020, 12:12 AM

is that on 91 or 93 octane fuel?

Z OH 6 · 10-13-2020, 12:29 PM

Quote:

Originally Posted by atiprocharger

No idea if they do remote tuning....

I asked this question to them a few days ago and they do remote tuning.

Camaro1973 · 10-13-2020, 02:14 PM

Why is Vengeance using STD and not SAE? SAE is the standard, I don't know why places continue to use STD on their dyno sheets so they can inflate numbers.

While your gains on the same dyno from them will be correct, the HP, TORQUE is inflated. There's a reason why car manf's use SAE to rate their engines at the crank, and for a true correct number SAE should be used on the dyno.

Z OH 6 · 10-14-2020, 08:19 AM

Quote:

Originally Posted by Camaro1973

Why is Vengeance using STD and not SAE? SAE is the standard, I don't know why places continue to use STD on their dyno sheets so they can inflate numbers.

While your gains on the same dyno from them will be correct, the HP, TORQUE is inflated. There's a reason why car manf's use SAE to rate their engines at the crank, and for a true correct number SAE should be used on the dyno.

I agree that SAE should be the standard for everyone but STD correction is about 3% higher than SAE so you can still figure out what the SAE numbers with relative accuracy.

Camaro1973 · 10-14-2020, 08:35 AM

Quote:

Originally Posted by Z OH 6

I agree that SAE should be the standard for everyone but STD correction is about 3% higher than SAE so you can still figure out what the SAE numbers with relative accuracy.

The problem with this is, not everyone knows this ....

zx9rmal · 10-14-2020, 02:19 PM

OP, did your 2.3 pulley and tune require anything else? What was the total cost?

I'm asking because the shop that dynoed my car, which is well known and has a good reputation, recommended their Phase 1 package. It was around $3K, which is more than I want to spend. The package is as follows:

Gains up to 60 HP!!

ATI Lower Crank Balancer
15% Lower Supercharger Drive Pulley
HD RPM Series Drive Belt
Roto Fab High Flow Cold Air Intake
160 Degree Thermostat
HD Crank Seal Kit
ARP Crank Bolt
Brisk Performance Spark Plugs
Custom Engine (and auto transmission if equipped) Calibration

Thanks

09-10-2020, 12:16 PM	#16
DegaZL1 Drives: 2018 ZL1 A10 Join Date: May 2019 Location: florida Posts: 32	Great gains....cost-effective gains ! Does going to the smaller 2.3" pulley require a smaller belt to spin it without slipping ? Or can the original belt designed for the original 2.5" pulley be used/retained ? Last edited by DegaZL1; 09-10-2020 at 12:18 PM. Reason: correct typo

09-10-2020, 08:23 PM	#20
Flowtie1 Drives: 2017 ZL1 Join Date: Apr 2020 Location: South florida Posts: 332	Ted j. Told me the pulley swap gains down low but will fall off a bit up top. Plus more heat generated. That is why I am on the fence __________________ 2017 ZL1 M6 Silver Ice Metallic

09-11-2020, 12:12 AM	#23
nighttowl Sarcasm loading -------- Drives: 2018 ZL1 1LE Join Date: Dec 2011 Location: TX Posts: 1,805 View My Garage	is that on 91 or 93 octane fuel? __________________ "The salesman actually told me to stop getting it sideways during the test drive" 2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

10-14-2020, 02:19 PM	#28
zx9rmal Drives: '20 ZL1 M6 Join Date: Apr 2017 Location: FT. Lauderdale, FL Posts: 717	OP, did your 2.3 pulley and tune require anything else? What was the total cost? I'm asking because the shop that dynoed my car, which is well known and has a good reputation, recommended their Phase 1 package. It was around $3K, which is more than I want to spend. The package is as follows: Gains up to 60 HP!! ATI Lower Crank Balancer 15% Lower Supercharger Drive Pulley HD RPM Series Drive Belt Roto Fab High Flow Cold Air Intake 160 Degree Thermostat HD Crank Seal Kit ARP Crank Bolt Brisk Performance Spark Plugs Custom Engine (and auto transmission if equipped) Calibration Thanks __________________ Mal Ft. Lauderdale, FL '20 Camaro ZL1 M6 '22 Kawasaki ZX-14R

10-13-2020, 02:14 PM	#25
Camaro1973 Drives: 2019 ZL1 Join Date: Mar 2019 Location: NJ Posts: 1,534	Why is Vengeance using STD and not SAE? SAE is the standard, I don't know why places continue to use STD on their dyno sheets so they can inflate numbers. While your gains on the same dyno from them will be correct, the HP, TORQUE is inflated. There's a reason why car manf's use SAE to rate their engines at the crank, and for a true correct number SAE should be used on the dyno.

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