Procharged Z/28 - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

AZ Charlie · 08-05-2016, 05:52 PM

Quote:

Originally Posted by arkentect

so i guess my question then is... Is the power from 5lbs of boost worth the cash? whats the power to cost ratio

Definitely worth it. You can do 4-5Lb boost and pull zero timing and on 91 octane (AZ octane at pump) car will run 650 whp all day long and it is a blast to drive...crushes ZL1's. We did 718 whp but pulled a couple degrees of timing which we did not want to do with the LS7 motor as seen in this video:

Unreal · 08-05-2016, 07:37 PM

Quote:

Originally Posted by arkentect

Isn't the LS7 a timebomb when it comes to boost?

Nope

And no it isn't limited to 7-8psi.

It is weaker than an ls3, but not a weak motor. I ran mine for a long time at 700rwhp. I know plenty in the 700-800rwhp range for years and 30k+ miles.

Good tune, and enough octane, and you can have a very happy 600-700rwhp ls7 for a long long long time.

timeoutdan · 08-05-2016, 08:11 PM

Thanks for all the info guys.

Unreal · 08-05-2016, 09:02 PM

Remember that boost is just a measurement of restriction. 6psi on a 427 with LS7 heads/intake/cam is about the same air as 11-12psi on a stock ls3. 11-12psi on a stock ls7 can make over 850rwhp. So the concept that they are weak are from people who don't get boost and base stuff off boost, not actual power.

Fedzl1 · 08-06-2016, 12:33 AM

Looking forward to those of you modifying their Z28! This is what I been looking to do already for some time since 505HP is not enough these days. Love the driving experience of my 2015 Z28, more than my previous 2013 ZL1 with 640whp!

Unreal · 08-06-2016, 08:10 AM

I know Nickey Chicago did a AGP twin turbo Z28. Turned out great.

Fedzl1 · 08-12-2016, 10:20 PM

Anyone completed a Whipple supercharger install?

Stephen12ZL1 · 08-13-2016, 08:42 AM

Quote:

Originally Posted by Fedzl1

Anyone completed a Whipple supercharger install?

a guy here has done that and is very happy with the outcome

NicKey · 08-15-2016, 11:25 AM

AGP Twin Turbo Kit on Z28 7lbs boost by NicKey Performance.

Fedzl1 · 08-21-2016, 08:26 PM

Quote:

Originally Posted by NicKey

AGP Twin Turbo Kit on Z28 7lbs boost by NicKey Performance.

Was there many modifications to be made to the AGP kit to make it fit to the Z28? Nice numbers! Is this car shortblock stock?

Vega$69 · 08-22-2016, 08:55 AM

LS7 is not a boost friendly platform however the respond extremely well to cams swaps.

Will some very minor head work just cleaning up the ports and the Texas Speed LS7 cam got me over 510 rwhp in my 69 Camaro thru an F9.

And that was will what most would consider a baby cam.

Brian Tooley and Tick offer way better cam packages

Under a $1000 for a cam swap or $6000- $7000 for a blower that will get you less power and put you at higher risk of breaking it

NicKey · 08-22-2016, 02:03 PM

Quote:

Originally Posted by Fedzl1

Was there many modifications to be made to the AGP kit to make it fit to the Z28? Nice numbers! Is this car shortblock stock?

Yes, this is with a stock short block. Main difference with the Z28 kit vs the regular Camaro kit, is the size and length of the connection pipes, and size of the heat exchanger, but AGP has that dialed in.

694hp and 616 tq is a good result at only 7 lbs, the kit is capable of much more.

Unreal · 08-23-2016, 06:51 AM

Quote:

Originally Posted by Vega$69

LS7 is not a boost friendly platform however the respond extremely well to cams swaps.

Will some very minor head work just cleaning up the ports and the Texas Speed LS7 cam got me over 510 rwhp in my 69 Camaro thru an F9.

And that was will what most would consider a baby cam.

Brian Tooley and Tick offer way better cam packages

Under a $1000 for a cam swap or $6000- $7000 for a blower that will get you less power and put you at higher risk of breaking it

A common myth, but not true. While ls7s are not as strong as a ls3, they are plenty strong and love boost. I made 705rwhp on ~7psi, and just like the cars above, they make great power. The good flowing heads and displacement make huge power on low boost. People say they are "weak" because you can't throw 10+psi at them, but that is because of the displacement/heads 10psi+ would be 900+hp. They can make ~40-50rwhp less than a ls3 and be safe.

Vega$69 · 08-23-2016, 08:28 AM

Quote:

Originally Posted by Unreal

A common myth, but not true. While ls7s are not as strong as a ls3, they are plenty strong and love boost.

I know the guys that worked on the E-Force program at Edelbrock on the LS7.

Their team also went to Lingenfelter with my 2014 C7 which was the 1st C7 LT1 Lingenfelter put a blower on. The issue they faced with the LS7 was not so much the blocks on the LS7 but the pistons. The challenge was to develop a package that did not require changing the piston so it could be bolt on.

To get real power out of the high compression LS7 with a blower a cam change is a must and boosting over 6-7 psi can be catastrophic.

And that is definitly not a MYTH

08-05-2016, 09:02 PM	#18
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Remember that boost is just a measurement of restriction. 6psi on a 427 with LS7 heads/intake/cam is about the same air as 11-12psi on a stock ls3. 11-12psi on a stock ls7 can make over 850rwhp. So the concept that they are weak are from people who don't get boost and base stuff off boost, not actual power. __________________ Nick Corvette Z06 -1200ish rwhp

08-06-2016, 12:33 AM	#19
Fedzl1 Drives: Camaro Z28 Join Date: May 2015 Location: PR Posts: 31	Looking forward to those of you modifying their Z28! This is what I been looking to do already for some time since 505HP is not enough these days. Love the driving experience of my 2015 Z28, more than my previous 2013 ZL1 with 640whp! __________________ New 2015 Z28 With AC and Radio Package! 631whp / 645whp Torque Daily Driver 2013 ZL1 SOLD!

08-06-2016, 08:10 AM	#20
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	I know Nickey Chicago did a AGP twin turbo Z28. Turned out great. __________________ Nick Corvette Z06 -1200ish rwhp

08-12-2016, 10:20 PM	#21
Fedzl1 Drives: Camaro Z28 Join Date: May 2015 Location: PR Posts: 31	Anyone completed a Whipple supercharger install? __________________ New 2015 Z28 With AC and Radio Package! 631whp / 645whp Torque Daily Driver 2013 ZL1 SOLD!

08-05-2016, 08:11 PM	#17
timeoutdan Drives: 2015 Camaro Z/28 Join Date: Feb 2012 Location: Miami Posts: 122	Thanks for all the info guys.

08-22-2016, 08:55 AM	#25
Vega$69 Drives: 2017 Corvette ZO6 & 2021 Camaro LT1 Join Date: Jul 2016 Location: Las Vegas/Wesley Chapel Posts: 109	LS7 is not a boost friendly platform however the respond extremely well to cams swaps. Will some very minor head work just cleaning up the ports and the Texas Speed LS7 cam got me over 510 rwhp in my 69 Camaro thru an F9. And that was will what most would consider a baby cam. Brian Tooley and Tick offer way better cam packages Under a $1000 for a cam swap or $6000- $7000 for a blower that will get you less power and put you at higher risk of breaking it