PRAY Custom cam only build - second round of dyno work....

RideZX6R · 08-21-2019, 02:40 PM

So I previously dyno'd 552whp and 456wtq and was happy with the car overall but there was some nagging low rpm/low throttle input issues so I sought out another tuner...

Setup:
-Pray Performance 22x/23x 111+3 cam (Stage 4 All Motor IIRC)
-Milled stock heads -.030
-Cometic thinner HGs
-Approx comp of 12.3:1
-2in Kooks headers, catless X-Pipe, factory NPP rear section
-180* T-stat from Mishimoto
-Rotofab Dry
-PRAY Ported MSD intake manifold
-PRAY Ported C7ZR1 TB
-Skidark Garage E85 FFS
-JLT catch can

20whp peak and almost 40wtq peak, with a much fatter torque curve, we'll see if it "feels" better as we all know dynos aren't created (or calibrated) equally.
It's also really obvious when the cam "comes on" between 3250-3500.

Hopefully the drivability is much better here too, that'll be seen this weekend when I pick it up, as that's the main thing - New tuner is Kaizenspeed in Kennewick WA (same folks that tuned shizzysupra/deathwatch camaros's car)

*edit* PRAY didn't tune either dyno - since that seemed to be a point of contention for some reason?
Also - the car will be for sale in a few days, I'm in love with it but ordered a C8 Z51 so I need the garage space.

Old...

New...

7speed · 08-21-2019, 03:56 PM

Damn that torque is nasty, should be even more fun.

NA18CamaroSS · 08-21-2019, 04:18 PM

It must feel amazing when VTEC kicks in!

6spdhyperblue · 08-21-2019, 04:21 PM

Dam that’s great. Who did the first tune.

Also I would’ve loved to have seen what the jlt cai would’ve done on this car.

Booher · 08-21-2019, 04:27 PM

I'm curious to see if they tuned out the lag from that tb that I've been reading about.

GuywithL86 · 08-21-2019, 04:42 PM

Man that torque curve must feel so nice compared to stock
Torque falling off a cliff at 4500 is my main gripe with the motor.

Baker · 08-22-2019, 01:11 AM

please let us know about that low end lagging I am currently having that issue and we cant seem to fix it I have the same mods just minus the h/c

RideZX6R · 08-22-2019, 01:25 AM

Will let y'all know when I get it back (this weekend)

KingLT1 · 08-22-2019, 08:53 AM

Who tuned it previously? Either way nice results....curious to see what it traps.

Quote:

Originally Posted by GuywithL86

Man that torque curve must feel so nice compared to stock
Torque falling off a cliff at 4500 is my main gripe with the motor.

These engines make peak torque at 44-4500 rpm.

zx9rmal · 08-22-2019, 09:59 AM

80% of max torque from 2,500 rpm. Great!

7speed · 08-22-2019, 10:39 AM

I just looked at new graph again, the new torque looks like might actually be 469(the curve never goes above 500)?

KingLT1 · 08-22-2019, 10:42 AM

Quote:

Originally Posted by 7speed

I just looked at new graph again, the new torque looks like might actually be 469(the curve never goes above 500)?

Nowhere on any of those graphs does it claim the car made over 500wtq so I am not sure what you are questioning? Two different dynos and from what I have seen the second looks to read high imo.

Edit*

I missed that the Heads have been milled for higher compression. That and being a manual, I can see those numbers being legit. Setup should runn great!!

G2K · 08-22-2019, 10:45 AM

BTW Pray Performance WAS NOT THE FIRST TUNER...
He already cleared that up on his facebook page.

This car just has his parts.

To the OP great build man, that thing with a set of heads may touch 600!!!

KingLT1 · 08-22-2019, 10:51 AM

Quote:

Originally Posted by G2K

BTW Pray Performance WAS NOT THE FIRST TUNER...
He already cleared that up on his facebook page.

This car just has his parts.

I figured but Thanks for clearing that up... OP should of mentioned that since it's a Pray Performance package.

08-21-2019, 02:40 PM	#1
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| 18 F150 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,133	PRAY Custom cam only build - second round of dyno work.... So I previously dyno'd 552whp and 456wtq and was happy with the car overall but there was some nagging low rpm/low throttle input issues so I sought out another tuner... Setup: -Pray Performance 22x/23x 111+3 cam (Stage 4 All Motor IIRC) -Milled stock heads -.030 -Cometic thinner HGs -Approx comp of 12.3:1 -2in Kooks headers, catless X-Pipe, factory NPP rear section -180* T-stat from Mishimoto -Rotofab Dry -PRAY Ported MSD intake manifold -PRAY Ported C7ZR1 TB -Skidark Garage E85 FFS -JLT catch can 20whp peak and almost 40wtq peak, with a much fatter torque curve, we'll see if it "feels" better as we all know dynos aren't created (or calibrated) equally. It's also really obvious when the cam "comes on" between 3250-3500. Hopefully the drivability is much better here too, that'll be seen this weekend when I pick it up, as that's the main thing - New tuner is Kaizenspeed in Kennewick WA (same folks that tuned shizzysupra/deathwatch camaros's car) edit PRAY didn't tune either dyno - since that seemed to be a point of contention for some reason? Also - the car will be for sale in a few days, I'm in love with it but ordered a C8 Z51 so I need the garage space. Old... New... __________________ -Seven '17 SS 1LE - 1LAP 1LE (Now with more 427!) '18 F150 Platinum Powerstroke diesel '22 Kia EV6 First Edition '18 RS3 (1 of 2) Cumulus Blue '24 911 T (ordered) Formers... '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor Last edited by RideZX6R; 08-26-2019 at 06:17 PM.

08-21-2019, 03:56 PM	#2
7speed Drives: 21 SS Join Date: Oct 2017 Location: Dallas Posts: 322	Damn that torque is nasty, should be even more fun. __________________

08-21-2019, 04:18 PM	#3
NA18CamaroSS Drives: 2018 Chevrolet Camaro 2SS 1LE 6M Join Date: Jul 2019 Location: California Posts: 283 View My Garage	It must feel amazing when VTEC kicks in! __________________ Bolt-ons.

08-22-2019, 01:11 AM	#7
Baker Drives: 2010 camaro RS,2017 camaro 1Le Join Date: Mar 2016 Location: Charlotte, NC Posts: 195	please let us know about that low end lagging I am currently having that issue and we cant seem to fix it I have the same mods just minus the h/c __________________ 2017 camaro 1le ROTO fab, Ported MSD, Ported 95mm tb, 2in TSP catless longtubes, flowmaster x-pipe, flowmaster American thunder npp, flex fuel,

08-22-2019, 01:25 AM	#8
RideZX6R Probably tired right now Drives: 1Lap1LE \| EV6 FE \| 18 F150 Join Date: Sep 2010 Location: At the office (CLT, NC) Posts: 1,133	Will let y'all know when I get it back (this weekend) __________________ -Seven '17 SS 1LE - 1LAP 1LE (Now with more 427!) '18 F150 Platinum Powerstroke diesel '22 Kia EV6 First Edition '18 RS3 (1 of 2) Cumulus Blue '24 911 T (ordered) Formers... '19 RS5 Sportback Sonoma Green \| '07 Cayman S 6MT \| '16 Audi S3 Prestige Viper Green (APR Stage 3+) \| '19 Mustang Shelby GT350R \| '17 SS 1LE MBM 575whp all-motor

08-21-2019, 04:21 PM	#4
6spdhyperblue Drives: 6th gen Join Date: Aug 2013 Location: US Posts: 3,676	Dam that’s great. Who did the first tune. Also I would’ve loved to have seen what the jlt cai would’ve done on this car.

08-21-2019, 04:27 PM	#5
Booher Drives: 2019 zl1 6 speed Join Date: Jul 2017 Location: Lake Havasu Arizona Posts: 979	I'm curious to see if they tuned out the lag from that tb that I've been reading about.

08-21-2019, 04:42 PM	#6
GuywithL86 Drives: Black Join Date: Jan 2017 Location: Nj Posts: 440	Man that torque curve must feel so nice compared to stock Torque falling off a cliff at 4500 is my main gripe with the motor.

08-22-2019, 09:59 AM	#10
zx9rmal Drives: '20 ZL1 M6 Join Date: Apr 2017 Location: FT. Lauderdale, FL Posts: 717	80% of max torque from 2,500 rpm. Great! __________________ Mal Ft. Lauderdale, FL '20 Camaro ZL1 M6 '22 Kawasaki ZX-14R

08-22-2019, 10:39 AM	#11
7speed Drives: 21 SS Join Date: Oct 2017 Location: Dallas Posts: 322	I just looked at new graph again, the new torque looks like might actually be 469(the curve never goes above 500)? __________________

08-22-2019, 10:45 AM	#13
G2K @Blackmamba_1LE Drives: 2017 1LE Join Date: Jun 2017 Location: South Florida Posts: 740	BTW Pray Performance WAS NOT THE FIRST TUNER... He already cleared that up on his facebook page. This car just has his parts. To the OP great build man, that thing with a set of heads may touch 600!!! __________________ OG: Pray Perf FBO ET:11.5 @119 THEN:LT4 SC, E85 + Meth :10.6 @135 NOW: H/C Whipple 416ci Last edited by G2K; 08-22-2019 at 10:58 AM.

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