ZL1 diff hp loss - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

gsxrturbo · 02-19-2021, 06:29 PM

swapping out to a zl1 diff and axles,anyone know how much hp i will loose to to wheels???

Bo White · 02-19-2021, 06:43 PM

Figure 10rwhp if that.

dreksnot · 02-20-2021, 01:13 AM

Much less than going 9". I've had several ZL1 diffs (the 3.73 and the 3.23). Seemed quite a smooth transition from the stock SS and better than the Hammerhead I had (3.73). The 9" seems to eat up power by comparison. So, my said moral is that the ZL1 diff is a great (efficient) way to go.

gsxrturbo · 02-20-2021, 11:58 AM

COOL thanks guys was hoping it wasnt alot..

csorrentini · 04-09-2021, 02:23 AM

reviving! I was in the market for a gear change and a local shop gave me a killer quote for a full swap to a ZL1 cradle, diff, axles, drives haft, complete rear brakes and hub for $2300 and change the front brakes to match for $1350 (all prices include parts and labor). I wasn't too sure because I know it will be much heavier than my existing but I also currently Ave 530 rwhp so wasn't sure if it would be better to go this route with the 3.7 gears in the zl1 with more weight or just go 3.91 with the Eaton, low, etc? any advice is highly appreciated, thank you!!

gtstorey · 04-09-2021, 08:09 AM

Based upon post on here, it depends on what you are doing with the car. Drag racing on prepped track with very sticky tires, might want to go with ZL1 diff. I don't think there has been much breakage at your power level in normal street use, especially if you have done suspension upgrades to eliminate wheel hop.

csorrentini · 04-10-2021, 08:26 PM

yea. not really looking to do much track, maybe once or twice in the future for fun. primarily just street

CamaroCracka · 04-11-2021, 08:53 AM

At 530whp, I don't think you need the ZL1, but those are some pretty good prices for installed upgrades. I don't think you could build a 10 bolt and put in aftermarket axles for that money, and the ZL1 is pretty hard to break. Several guys run 1000hp on them.

If you are worried about more weight in the rear, just add a blower up front to balance it out.

02-19-2021, 06:29 PM	#1
gsxrturbo Drives: 2010 ss Join Date: Oct 2015 Location: windom mn Posts: 337	ZL1 diff hp loss swapping out to a zl1 diff and axles,anyone know how much hp i will loose to to wheels???

02-19-2021, 06:43 PM	#2
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Figure 10rwhp if that. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

02-20-2021, 01:13 AM	#3
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,605 View My Garage	Much less than going 9". I've had several ZL1 diffs (the 3.73 and the 3.23). Seemed quite a smooth transition from the stock SS and better than the Hammerhead I had (3.73). The 9" seems to eat up power by comparison. So, my said moral is that the ZL1 diff is a great (efficient) way to go. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

04-11-2021, 08:53 AM	#8
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,736	At 530whp, I don't think you need the ZL1, but those are some pretty good prices for installed upgrades. I don't think you could build a 10 bolt and put in aftermarket axles for that money, and the ZL1 is pretty hard to break. Several guys run 1000hp on them. If you are worried about more weight in the rear, just add a blower up front to balance it out. __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.

02-20-2021, 11:58 AM	#4
gsxrturbo Drives: 2010 ss Join Date: Oct 2015 Location: windom mn Posts: 337	COOL thanks guys was hoping it wasnt alot..

04-09-2021, 02:23 AM	#5
csorrentini Drives: 2010 Orange 2SS/RS Join Date: May 2010 Location: West Palm Beach, fl Posts: 376	reviving! I was in the market for a gear change and a local shop gave me a killer quote for a full swap to a ZL1 cradle, diff, axles, drives haft, complete rear brakes and hub for $2300 and change the front brakes to match for $1350 (all prices include parts and labor). I wasn't too sure because I know it will be much heavier than my existing but I also currently Ave 530 rwhp so wasn't sure if it would be better to go this route with the 3.7 gears in the zl1 with more weight or just go 3.91 with the Eaton, low, etc? any advice is highly appreciated, thank you!!

04-09-2021, 08:09 AM	#6
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,155	Based upon post on here, it depends on what you are doing with the car. Drag racing on prepped track with very sticky tires, might want to go with ZL1 diff. I don't think there has been much breakage at your power level in normal street use, especially if you have done suspension upgrades to eliminate wheel hop.

04-10-2021, 08:26 PM	#7
csorrentini Drives: 2010 Orange 2SS/RS Join Date: May 2010 Location: West Palm Beach, fl Posts: 376	yea. not really looking to do much track, maybe once or twice in the future for fun. primarily just street