LT4 1.7 Supercharger Installed 821/794 - Page 2

adamjwilson · 05-18-2023, 05:41 AM

May want to consider port injection.... the guys over at TooPSI can assist you with your journey or Laynlo here can provide some insight as well.

jd2021 · 05-18-2023, 07:47 AM

Nice, good luck with the build! I plan to stick with the LT4 fueling, don't really plan to go above 650 rwhp since I'm going to most likely road course the car and need to spend money on upgrading the trans/driveline as well to make sure I don't blow anything up. A reliable 650 rwhp would be the dream for me. I also live near Denver so probably not going to get anywhere near that but wherever I end up I think I'll be happy(is what they all say).

BlackbeastSS2 · 05-18-2023, 04:39 PM

Dyno today.

First Pull 821/794

The tuner said way too much heat and we have to back it off to the mid sevens.
I need a Forced Induction InterChillers to control the heat.

Pick up car tomorrow with Dyno graph with lower numbers yet to be decided so the engine survives.

Joshinator99 · 05-18-2023, 05:11 PM

Quote:

Originally Posted by BlackbeastSS2

Dyno today.

First Pull 821/794

The tuner said way too much heat and we have to back it off to the mid sevens.
I need a Forced Induction InterChillers to control the heat.

Pick up car tomorrow with Dyno graph with lower numbers yet to be decided so the engine survives.

Nice numbers! Did you run any E or was that 93 only?

BlackbeastSS2 · 05-18-2023, 05:26 PM

Quote:

Originally Posted by Joshinator99

Nice numbers! Did you run any E or was that 93 only?

No E yet but will be coming in time. We have 94 octane here at the pumps. It was with 94.

Tuner wants the car back Tuesday we have a long weekend up here in Canada. We decided on 820 with premium 94 and a boost octane bottle on ever fill up. Looks like I will be getting the BMR upper and lower with the bushing kit sooner then later. The E would keep it cooler but I don’t have the fuelling system yet to support it.

Here’s the dyno graph with 747/739. Tuesday will will go back to the 821/794 with the octane boost.

Zracer · 05-18-2023, 08:17 PM

Nice results! How much boost was this on and what's the detailson your fuel system?

laynlo15 · 05-18-2023, 10:59 PM

Man 820 on 94 octane are some pretty high numbers for that octane. Great numbers.

BlackbeastSS2 · 05-18-2023, 11:27 PM

Quote:

Originally Posted by Zracer

Nice results! How much boost was this on and what's the detailson your fuel system?

I am picking up the car Friday and will get more info on the boost numbers today. I was not at the shop for the run. Tuesday I will be there to get the final dyno run for the 820 run. I don’t even know what size of pulleys they ended up doing, the discussion was they will try a few.

BlackbeastSS2 · 05-18-2023, 11:34 PM

Quote:

Originally Posted by laynlo15

Man 820 on 94 octane are some pretty high numbers for that octane. Great numbers.

Meth is being sprayed as well. I agree great numbers. I just may take off the high flow cats and DBX mufflers I put on in the fall because it was way to loud. Then I decided to go supercharged and had 850 number in my mind. So I may go back to free flow with 410 mufflers. But first I will have to see how it drives and sounds.

Chrome383Z · 05-19-2023, 02:56 AM

Awesome numbers! I ran E70 today (10psi). Fuel system is holding but have LPE pump and +30 injectors. I wish port was available when I bought my stuff I think I have 5k ish in that alone.

BlackbeastSS2 · 05-19-2023, 11:23 AM

Quote:

Originally Posted by Zracer

Nice results! How much boost was this on and what's the detailson your fuel system?

Just picked up the car, a touch over 13 pounds of boost. Drives amazingly and you sure notice going from 525 to 750 and then on Tuesday it goes back to 820 with octane boost. The meth should keep it happy but the tuner wants an additional bottle of octane boost in the tank on ever fill up. Am fine with that.

Idle clip, will try to get some driving videos. I am not much of a videographer.

https://youtu.be/O56WH0CAYVw

adamjwilson · 05-19-2023, 11:50 AM

Congrats... great #'s as well!

Zracer · 05-20-2023, 04:43 PM

Quote:

Originally Posted by BlackbeastSS2

I am picking up the car Friday and will get more info on the boost numbers today. I was not at the shop for the run. Tuesday I will be there to get the final dyno run for the 820 run. I don’t even know what size of pulleys they ended up doing, the discussion was they will try a few.

What injectors and hpp are you running?
Thanks

BlackbeastSS2 · 05-20-2023, 04:51 PM

Quote:

Originally Posted by Zracer

What injectors and hpp are you running?
Thanks

GM Stock ZL1 injectors, Stock high side ZL1 , and it’s a 1LE so it comes with factory low side already in.

05-18-2023, 05:41 AM	#15
adamjwilson Drives: 2022 Camaro 2SS A10 Join Date: Jul 2022 Location: FL Posts: 524	May want to consider port injection.... the guys over at TooPSI can assist you with your journey or Laynlo here can provide some insight as well. __________________ 2022 Camaro 2SS/ Whipple 3.0 / 2"Headers/ PRC LTX Heads/ Forged Internals/LT4 fueling/ DSX Aux/ DSX Flex Fuel/ Meth Injection/ Katech 112 TB/ RotoFab Big Gulp/ Corsa NPP/ Various exterior mods

05-18-2023, 04:39 PM	#17
BlackbeastSS2 Drives: 2019 Camaro 1LE Shock Candy Join Date: Mar 2016 Location: Garage Posts: 1,757	Dyno today. First Pull 821/794 The tuner said way too much heat and we have to back it off to the mid sevens. I need a Forced Induction InterChillers to control the heat. Pick up car tomorrow with Dyno graph with lower numbers yet to be decided so the engine survives. __________________ LT4 1.7 Supercharger snout ported & Meth 103 Katech TB, KATECH Custom Heads, DSX In-line fuel TSP Headers, Spec P Super Twin Clutch, TSP EL C7 CAM Diamond Piston & Manley Rods, Roto Fab Big Gulp BTR Push Rods,LS7 Lifters, ARP, FI Chiller, Kirkey Seats SJM Line Lock, Hurst Pistol Grip. 747/739 RWHP street tune - 821/794 RWHP track tune 101 octane. 2014 Mini Cooper countryman S All4 M6 daily driver

05-18-2023, 10:59 PM	#21
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Man 820 on 94 octane are some pretty high numbers for that octane. Great numbers. __________________ 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

05-19-2023, 02:56 AM	#24
Chrome383Z Drives: 2019 Camaro 2SS Join Date: Aug 2020 Location: McCordsville, Indiana Posts: 621	Awesome numbers! I ran E70 today (10psi). Fuel system is holding but have LPE pump and +30 injectors. I wish port was available when I bought my stuff I think I have 5k ish in that alone. __________________ 2019 Shock 2SS A10. 2650@10psi/LPE HPFP/XDI+30/LT4 LPFP+JMS/Soler 95mm/Rotofab, E65, CSP 2” Headers/GESI GenII Cats. MM Wild/GM SG3 suspension/1LE Brakes, Velgen VF5 Wheels/GY SC3. JRE Tuned.

05-19-2023, 11:50 AM	#26
adamjwilson Drives: 2022 Camaro 2SS A10 Join Date: Jul 2022 Location: FL Posts: 524	Congrats... great #'s as well! __________________ 2022 Camaro 2SS/ Whipple 3.0 / 2"Headers/ PRC LTX Heads/ Forged Internals/LT4 fueling/ DSX Aux/ DSX Flex Fuel/ Meth Injection/ Katech 112 TB/ RotoFab Big Gulp/ Corsa NPP/ Various exterior mods

05-18-2023, 07:47 AM	#16
jd2021 Drives: 2023 Camaro SS1LE Join Date: Dec 2020 Location: CO Posts: 57 View My Garage	Nice, good luck with the build! I plan to stick with the LT4 fueling, don't really plan to go above 650 rwhp since I'm going to most likely road course the car and need to spend money on upgrading the trans/driveline as well to make sure I don't blow anything up. A reliable 650 rwhp would be the dream for me. I also live near Denver so probably not going to get anywhere near that but wherever I end up I think I'll be happy(is what they all say).

05-18-2023, 08:17 PM	#20
Zracer Drives: 1999 Z28, 2011 2SS VERT, 2016 1SS Join Date: Mar 2018 Location: Denton N.C. Posts: 17	Nice results! How much boost was this on and what's the detailson your fuel system?

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