PRAY Performance STG 1 Modified H/C package dyno numbers. - Page 2

laynlo15 · 02-14-2018, 06:18 AM

Nice job Brett

slowlypullin · 02-14-2018, 12:39 PM

Quote:

Originally Posted by PRAY

Thanks buddy. I think there may be a design shift with all of my cams coming soon.

Keep up the good work and keep us updated on the KR issue.

ULTRAZLS1 · 02-14-2018, 12:52 PM

Yep I’m staying stock converter for sure.

Amazing results. Looks to lose nothing down low. 60ft should stay in the 1.5 range.

I would think this could push a car into the low 10s on a stock converter ? With 100 hp gain I don’t see why not if the 60 stays as good as stock cam...

King_TJ · 02-14-2018, 05:30 PM

Quote:

Originally Posted by PRAY

Thanks buddy. I think there may be a design shift with all of my cams coming soon.

GLAD MY PLANS ARENT UNTIL A LIL LATER THIS YEAR

boostednut · 02-14-2018, 08:48 PM

Hot damn that's nice. Good work.

Baker · 02-14-2018, 10:26 PM

Curious as to the reasoning of you switching up to the 2 inch kooks from the 1 7/8s I’ve heard that the two inch is really only for if your doing forced induction? Also would like to say congrats and thank you for all that you do for us

PRAY · 02-15-2018, 04:25 AM

Quote:

Originally Posted by Baker

Curious as to the reasoning of you switching up to the 2 inch kooks from the 1 7/8s I’ve heard that the two inch is really only for if your doing forced induction? Also would like to say congrats and thank you for all that you do for us

I have run 2" headers from day one. I always suggest 2" headers as well. From bolt on's to boost. I have not seen them hurt anything. I cut 1.57 60fts in my car on 28" tires and on "my" record bolt on Grand Sport we have seen 1.55 60ft's.

Switching up on this car was not my idea. I was going to leave the 1 7/8" but the owner had already ordered them when he brought the car.

PRAY · 02-15-2018, 04:30 AM

Quote:

Originally Posted by ULTRAZLS1

Yep I’m staying stock converter for sure.

Amazing results. Looks to lose nothing down low. 60ft should stay in the 1.5 range.

I would think this could push a car into the low 10s on a stock converter ? With 100 hp gain I don’t see why not if the 60 stays as good as stock cam...

Considering on a 26" tire you will be in the mid 6K rpm range by the 60ft I think you will actually see a slight reduction in 60ft. This thing should mph like a big dog on the stock converter. It would be very interesting to see what this package would do on your car. It should trap mid 130's for sure.

BoostedX2 · 02-15-2018, 05:28 AM

Hi Pray, do you have your own shop or where do you get your work done! Thanks for all the info!

Tom

PRAY · 02-15-2018, 05:48 AM

Quote:

Originally Posted by BoostedX2

Hi Pray, do you have your own shop or where do you get your work done! Thanks for all the info!

Tom

No Sir, no shop. I have a regular job and do this in my "spare time" out of one stall in my two car garage. Old school, off my back on jacks ands kind of stuff. I am just a small fry in a big pond.

MatthewAMEL · 02-15-2018, 07:12 AM

Nice numbers, but my understanding is there is no benefit to NA cars using stock compression ratios after about E40.

Does this car have a motor build?

PRAY · 02-15-2018, 07:19 AM

Quote:

Originally Posted by MatthewAMEL

Nice numbers, but my understanding is there is no benefit to NA cars using stock compression ratios after about E40.

Does this car have a motor build?

SBE stock compression. I have tested E40 on multiple cars at different levels of modifications. I see around 15rw on E40, 25rw at E72-77, and up to 30rw around E88 or so. The stock cam retards 10* by 5,700 rpm. That drops DCR from 9.76 up till 3,200 in a liner fashion to 9.1 DCR by 5,700. The extra oxygen and octane can and will be utilized with proper timing adjustments to burn it. But that is just my experience.

Franko07 · 02-15-2018, 08:35 AM

Compression wise, what do you think you can get away with on a stock bottom end and still be within reason as far as able to run 93 octane if you got in a pinch?

i don't drive mine but 2k miles a year so added compression is not a problem other than if i took it on the power tour or something.
With your current knowledge, what is your suggested setup for a situation as far as parts and type of mods to get there?

boostednut · 02-15-2018, 02:41 PM

Quote:

Originally Posted by PRAY

No Sir, no shop. I have a regular job and do this in my "spare time" out of one stall in my two car garage. Old school, off my back on jacks ands kind of stuff. I am just a small fry in a big pond.

What this should say is:
I know what I'm doing, and I don't blow smoke up anyone's ass.

Quote:

Originally Posted by PRAY

SBE stock compression. I have tested E40 on multiple cars at different levels of modifications. I see around 15rw on E40, 25rw at E72-77, and up to 30rw around E88 or so. The stock cam retards 10* by 5,700 rpm. That drops DCR from 9.76 up till 3,200 in a liner fashion to 9.1 DCR by 5,700. The extra oxygen and octane can and will be utilized with proper timing adjustments to burn it. But that is just my experience.

What kind of oil are you running for most of these setups?

02-14-2018, 06:18 AM	#15
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Nice job Brett __________________ 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

02-14-2018, 10:26 PM	#20
Baker Drives: 2010 camaro RS,2017 camaro 1Le Join Date: Mar 2016 Location: Charlotte, NC Posts: 195	Curious as to the reasoning of you switching up to the 2 inch kooks from the 1 7/8s I’ve heard that the two inch is really only for if your doing forced induction? Also would like to say congrats and thank you for all that you do for us __________________ 2017 camaro 1le ROTO fab, Ported MSD, Ported 95mm tb, 2in TSP catless longtubes, flowmaster x-pipe, flowmaster American thunder npp, flex fuel,

02-15-2018, 05:28 AM	#23
BoostedX2 Drives: VR ZL1 #259/Nissan 370Z NISMO Join Date: Aug 2008 Location: Ohio Posts: 1,071	Hi Pray, do you have your own shop or where do you get your work done! Thanks for all the info! Tom __________________ 2012 Victory Red ZL1 Lingenfelter 630 Package "Plus" 592 HP/580 TQ

02-15-2018, 07:12 AM	#25
MatthewAMEL Drives: 2023 CT5 Blackwing Join Date: Sep 2016 Location: Orlando Posts: 1,619	Nice numbers, but my understanding is there is no benefit to NA cars using stock compression ratios after about E40. Does this car have a motor build? __________________ 2017 HBM SS 1LE Sold 2023 Wave Metallic CT5-V Blackwing M6

02-14-2018, 12:52 PM	#17
ULTRAZLS1 Drives: 14 Silverado LTZ Z71, 16 Camaro SS Join Date: Nov 2009 Location: Jackson, Michigan Posts: 4,407	Yep I’m staying stock converter for sure. Amazing results. Looks to lose nothing down low. 60ft should stay in the 1.5 range. I would think this could push a car into the low 10s on a stock converter ? With 100 hp gain I don’t see why not if the 60 stays as good as stock cam...

02-14-2018, 08:48 PM	#19
boostednut Drives: Nothing cool atm Join Date: Aug 2017 Location: California Posts: 138	Hot damn that's nice. Good work.

02-15-2018, 08:35 AM	#27
Franko07 Drives: 17 white 1LE Join Date: Feb 2017 Location: Fort Worth Posts: 126	Compression wise, what do you think you can get away with on a stock bottom end and still be within reason as far as able to run 93 octane if you got in a pinch? i don't drive mine but 2k miles a year so added compression is not a problem other than if i took it on the power tour or something. With your current knowledge, what is your suggested setup for a situation as far as parts and type of mods to get there?

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