Maximum HP Without Internal Mods - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

mred2nice · 07-18-2020, 11:02 PM

Hello Everyone

I was just wondering...has anyone tried unlimited mods without going in the motor(no camshaft change). Porting the blower/snout, pulleys, heat exchanger, headers/exhaust, injectors, E85, Throttle Body, CAI etc. At some point, I would imagine the stock camshaft will be limiting the ROI(hp).

Thanks,
Ed

Bufford · 07-19-2020, 06:54 AM

The White ZL1 that was for sale earlier this year was 630 with stock cam and stock blower,...so I would have to believe with a real aggressive tune and a ported blower a fella could get to almost 700,...then of course you could always spray the guts out of it

George-CZ · 07-19-2020, 07:10 AM

Good thread

I've had the same idea in my head for months.
I have classic basic adjustments in the form of CAI, high flow cats, headers, exhaust and tune.

I also plan to ported throttle body and new tune.

Then I have to figure out what the next mod will be. ...bigger injectors with a better fuel pump, more powerful ignition ...?

I bought a nice book so I'll see what I find out.

https://www.amazon.com/Camaro-5th-Ge.../dp/1613251637

97ChameleonTA · 07-19-2020, 08:10 AM

I'm at 698.72 RWHP and 740.68 RWTQ with essentially the mods in my sig. Haven't had a chance to run it at the track yet since converting to E85. That was worth almost 100 RWHP by itself.

silversleeper · 07-19-2020, 11:25 AM

And those are in the Dodge Demon power territory without even going into the motor

:
Demon Dyno
91-octane 722.91 horsepower and 647.65 pound-feet of torque
100-octane 749.03 hp and 692.31 lb-ft of torque
https://www.hagerty.com/media/archiv...n-on-the-dyno/
Another point is that it's easy and cheap to have it always full of e85 but a person might not have availability and $ to run 100 octane always.

Yes a Hellcat or Demon owner could turn up the power also but they are already starting out spending many thousands more on the stock vehicle.
Dodge Demon price is $84,995 MSRP new.

Juiced1 · 07-22-2020, 08:17 AM

Quote:

Originally Posted by mred2nice

Hello Everyone

I was just wondering...has anyone tried unlimited mods without going in the motor(no camshaft change). Porting the blower/snout, pulleys, heat exchanger, headers/exhaust, injectors, E85, Throttle Body, CAI etc. At some point, I would imagine the stock camshaft will be limiting the ROI(hp).

Thanks,
Ed

With E85 and all the bolt ons you can get to 700rwhp. A cam won't add big power like it would to an N/A motor. The biggest advantage to having a cam is that it will add some power while lowering your boost....so you can pulley it a bit harder. We finished up an LSA build the other day that made 685rwhp with no cam.

07-18-2020, 11:02 PM	#1
mred2nice Drives: 2013 Camaro ZL1 & 1979 10.5 Camaro Join Date: Jul 2016 Location: North Olmsted Posts: 110	Maximum HP Without Internal Mods Hello Everyone I was just wondering...has anyone tried unlimited mods without going in the motor(no camshaft change). Porting the blower/snout, pulleys, heat exchanger, headers/exhaust, injectors, E85, Throttle Body, CAI etc. At some point, I would imagine the stock camshaft will be limiting the ROI(hp). Thanks, Ed

07-19-2020, 06:54 AM	#2
Bufford Drives: 1970 Buick GSX Join Date: Feb 2020 Location: South Carolina Posts: 48	The White ZL1 that was for sale earlier this year was 630 with stock cam and stock blower,...so I would have to believe with a real aggressive tune and a ported blower a fella could get to almost 700,...then of course you could always spray the guts out of it __________________

07-19-2020, 08:10 AM	#4
97ChameleonTA Drives: 2013 ZL1 Convertible Join Date: Oct 2013 Location: Valrico, FL Posts: 515	I'm at 698.72 RWHP and 740.68 RWTQ with essentially the mods in my sig. Haven't had a chance to run it at the track yet since converting to E85. That was worth almost 100 RWHP by itself. __________________ 2013 ZL1 Auto Convertible - BRM Best: 10.829@127.15 FI Interchiller, Roto-Fab CAI, Big Gulp & Res, 9.1/2.5 Pulleys, PB&S, DeatschWerks 1500cc, Fore triple pump, Pfadt LT's, RD HX, MT DR's New times to come with E85 2016 2SS Auto - Hyper Blue Metallic Roto-Fab CAI

07-19-2020, 07:10 AM	#3
George-CZ Drives: 2010 2SS LS3 and 1978 STROKER 383 Join Date: Feb 2018 Location: Czech Republic Posts: 1,592	Good thread I've had the same idea in my head for months. I have classic basic adjustments in the form of CAI, high flow cats, headers, exhaust and tune. I also plan to ported throttle body and new tune. Then I have to figure out what the next mod will be. ...bigger injectors with a better fuel pump, more powerful ignition ...? I bought a nice book so I'll see what I find out. https://www.amazon.com/Camaro-5th-Ge.../dp/1613251637

07-19-2020, 11:25 AM	#5
silversleeper Big Crow Drives: '13 ZL1 Join Date: Mar 2017 Location: California Posts: 1,487	And those are in the Dodge Demon power territory without even going into the motor : Demon Dyno 91-octane 722.91 horsepower and 647.65 pound-feet of torque 100-octane 749.03 hp and 692.31 lb-ft of torque https://www.hagerty.com/media/archiv...n-on-the-dyno/ Another point is that it's easy and cheap to have it always full of e85 but a person might not have availability and $ to run 100 octane always. Yes a Hellcat or Demon owner could turn up the power also but they are already starting out spending many thousands more on the stock vehicle. Dodge Demon price is $84,995 MSRP new.