LS7 small bore head dyno info - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

zz430camaro · 01-11-2019, 08:10 PM

Found this surfing around, amazing results.

https://www.corvetteforum.com/forums...l#&gid=1&pid=1

olblue75 · 01-11-2019, 08:46 PM

It didn't think the MSD IM wouldn't work on a 5th Gen.

zz430camaro · 01-11-2019, 08:56 PM

Quote:

Originally Posted by olblue75

It didn't think the MSD IM wouldn't work on a 5th Gen.

They put LS7 small bore heads on it, that is why it works.

Bo White · 01-12-2019, 04:20 AM

correct

zz430camaro · 01-12-2019, 07:09 AM

I have looked at several torque curves for these combos and think its intereting to see their shape. Although the LS7 head is good its runner cross section is not that far off from the LS3. The torque at high rpm must be from the intake manifold being tuned for a higher rev range and a decent size cam.

383z · 01-12-2019, 10:38 AM

Quote:

Originally Posted by zz430camaro

I have looked at several torque curves for these combos and think its intereting to see their shape. Although the LS7 head is good its runner cross section is not that far off from the LS3. The torque at high rpm must be from the intake manifold being tuned for a higher rev range and a decent size cam.

You are right on the money. GPI said the same thing about their MAX Package.
They also said their LS7 heads have are 12 degree angle which helps with a bigger cam.
I wonder what's the TSP PRC small bored LS7 heads angle? I'll have to look it up.
https://gwatneyperformance.com/produ...d-cam-package/

christianchevell · 01-13-2019, 07:47 AM

I would think just like the GPI engine the results are even better with a stroker and the torque is what moves you.....add 50 ft lbs and more you feel it big time even more.....and with the 1.8 rockers on the heads the cams actually smaller yet is multiplied more by the rockers ratio. as in about .035 added on to say a .600 lift its now .635 due to the rockers if my memory does not fail me.

WHAMMO · 01-18-2019, 04:43 PM

If Im not mistaken small bores ls7 are just ls7 heads with smaller ex valves. They flow a lot!! Think the TSP version have some sort of CNC work into it.

SSBUSDRVR · 01-25-2019, 05:38 PM

Run the Mast Black Label 265 LS7 Heads here they work great with a Stroker.They have an 11 degree angle.

olblue75 · 01-26-2019, 09:47 PM

So what's the difference in the LS3 MSD intake for a Vette that it won't fit in a Camaro without cowl trimming but a LS7 MSD will fit???

KW Baraka · 01-27-2019, 06:57 PM

Quote:

Originally Posted by olblue75

So what's the difference in the LS3 MSD intake for a Vette that it won't fit in a Camaro without cowl trimming but a LS7 MSD will fit???

AFAIK, there's no such thing as a LS3 MSD intake.

KW

SSBUSDRVR · 01-28-2019, 05:00 PM

Yes they gave it a go and didn’t get the Results. At least they didn’t try to sell people Snake Oil. Says a lot for how well the “stock” LS3 Intake does.
Customer on Corvette Page got this straight from MSD
“Unfortunately the Atomic Airforce intake for the LS3 was not put into production.* The initial design did not have a sufficient change in horsepower to allow it to go to production.”

MSD LLC

01-11-2019, 08:10 PM	#1
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	LS7 small bore head dyno info Found this surfing around, amazing results. https://www.corvetteforum.com/forums...l#&gid=1&pid=1 __________________ 2015 1LE, TSP 225/236 113+3, VMAX Throttle Body, CAI with race scoop, GPI Ported Intake, Land Speed Stage 2 Heads, 1-7/8 headers, NPP exhaust, 25% Fluidampr, LT1-S Monster Clutch, 485 RWHP & 444 TQ

01-11-2019, 08:46 PM	#2
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	It didn't think the MSD IM wouldn't work on a 5th Gen. __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

01-12-2019, 07:09 AM	#5
zz430camaro Drives: 2015 1LE Join Date: Oct 2015 Location: Cleveland, OH Posts: 1,485	I have looked at several torque curves for these combos and think its intereting to see their shape. Although the LS7 head is good its runner cross section is not that far off from the LS3. The torque at high rpm must be from the intake manifold being tuned for a higher rev range and a decent size cam. __________________ 2015 1LE, TSP 225/236 113+3, VMAX Throttle Body, CAI with race scoop, GPI Ported Intake, Land Speed Stage 2 Heads, 1-7/8 headers, NPP exhaust, 25% Fluidampr, LT1-S Monster Clutch, 485 RWHP & 444 TQ

01-13-2019, 07:47 AM	#7
christianchevell old school chevy rodder Drives: 2013 2SS/RS Manual,DM exhaust,CRT Join Date: Jul 2012 Location: Oregon Posts: 5,587 View My Garage	I would think just like the GPI engine the results are even better with a stroker and the torque is what moves you.....add 50 ft lbs and more you feel it big time even more.....and with the 1.8 rockers on the heads the cams actually smaller yet is multiplied more by the rockers ratio. as in about .035 added on to say a .600 lift its now .635 due to the rockers if my memory does not fail me. __________________ 2021 Wild Cherry ZL1 A10, Sunroof, Data, Carbon, Nav, RotoFab Dry CAI, Elite x2, Borla ATK, Driveshaft shop

01-18-2019, 04:43 PM	#8
WHAMMO Drives: 13' 1LE Join Date: Apr 2012 Location: Canada Posts: 2,642	If Im not mistaken small bores ls7 are just ls7 heads with smaller ex valves. They flow a lot!! Think the TSP version have some sort of CNC work into it. __________________ 13' 1LE Old setup: TSP 231-236/Tick 660/.105 PR, UDP, SW LT 2'' & HFC, stock NPP & H pipe, VR-DRX CAI, air scoop, Goertz1 manifold, 102mm BBK, 26" Toyo DRs, Forgestars R17x10 & F18x8, rear seat delete, remote Pat G tune Autocal, 7400 limiter, Spec Mini Twin. 91oct. 11.90@122.3, 0-60ft 2.0 / 11.99@123.6, 0-60ft 2.1 DA+819 ...519RWHP SAE Solid roller SBE LS3, FED, LLSR, 91oct, 605rwhp N/A. Tuned by Pat G. Build by me.

01-12-2019, 04:20 AM	#4
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	correct

01-25-2019, 05:38 PM	#9
SSBUSDRVR Drives: '11 2SS/RS IBM/BLK M6 Join Date: Mar 2011 Location: Central FL Posts: 3,748 View My Garage	Run the Mast Black Label 265 LS7 Heads here they work great with a Stroker.They have an 11 degree angle. __________________ '11 IBM 2SS/RS Built and Tuned by Vengeance Racing Vengeance PCM Vengeance Racing Mast Black Label LS7 Headed 416 ProCharger Stage II D1X Race ,Monster Triple,Alky Control Meth Inj, Forgestar F14 Drag Version and a bunch of other blah blah blah.838/688 at 12lbs Street Friendly

01-26-2019, 09:47 PM	#10
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	So what's the difference in the LS3 MSD intake for a Vette that it won't fit in a Camaro without cowl trimming but a LS7 MSD will fit??? __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

01-28-2019, 05:00 PM	#12
SSBUSDRVR Drives: '11 2SS/RS IBM/BLK M6 Join Date: Mar 2011 Location: Central FL Posts: 3,748 View My Garage	Yes they gave it a go and didn’t get the Results. At least they didn’t try to sell people Snake Oil. Says a lot for how well the “stock” LS3 Intake does. Customer on Corvette Page got this straight from MSD “Unfortunately the Atomic Airforce intake for the LS3 was not put into production.* The initial design did not have a sufficient change in horsepower to allow it to go to production.” MSD LLC __________________ '11 IBM 2SS/RS Built and Tuned by Vengeance Racing Vengeance PCM Vengeance Racing Mast Black Label LS7 Headed 416 ProCharger Stage II D1X Race ,Monster Triple,Alky Control Meth Inj, Forgestar F14 Drag Version and a bunch of other blah blah blah.838/688 at 12lbs Street Friendly