lsa conversion question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

supergt99 · 01-03-2016, 10:20 PM

im going to start a lsa conversion on my 1le in the next few weeks. what size is the stock upper pulley? how much will i end up with on stock pulley. ill be running the ls9 cam with LT heads and off road exhaust.

hammdo · 01-03-2016, 11:39 PM

You'll want to install a 2 piece pulley now, trust me... 2.75 or 2.55...
I'm running the stock pulley but vvt ss1, ported heads with headers, cai and I'm at 590 RWHP but each car varies..

-Don

Dirtdog · 01-04-2016, 01:02 AM

stock pulley? 91octane?
570whp ish
that's where im at and you described a similar setup to mine. I don't have headwork though.

your sig says NF Cam in your 1LE. why not keep that, the LS9 is downgrading.

I wish I had upgraded the pulley at least one size.

hammdo · 01-04-2016, 12:42 PM

Ls9 cam is good for boost and I don't think the valve springs need to change if stock are still on but, if you can, I'd go with a BTR PD stage 2 or 3 cam. If the NF is an n/a cam, might be a good reason to change..

-Don

hammdo · 01-04-2016, 12:45 PM

BTW, more power does not necessarily mean better ets... ;o)

-Don

ilir14 · 01-04-2016, 11:53 PM

[QUOTE=hammdo;8821572]You'll want to install a 2 piece pulley now, trust me... 2.75 or 2.55...
+1

supergt99 · 01-06-2016, 07:23 AM

I'll look into swapping the pulley now.

I didn't swap the night fury cam out yet. I think I'm gonna leave it in and give it a try. I love the idle.

supergt99 · 02-13-2016, 01:16 PM

Still thinking about the cam. Is 600rwhp possible with ls9 cam and 2.75 pulley?

hammdo · 02-13-2016, 02:17 PM

2.55 and injectors may get you close.. 580s to 590s. BTR PD stage 1 and 2.55 had done it or real close...

-Don

ttshovel · 02-13-2016, 03:23 PM

I bet you will break 600whp using the night fury cam and a 2.5 upper

Stock upper is 2.95

ilir14 · 02-13-2016, 03:35 PM

I have BTR stage 1 and 2.75 pulley pushing 650+ rwhp, it will definitely get you over 600

jose1003 · 02-17-2016, 10:56 AM

What pulley would you all go with, I think adm sells one of the best pulley
I'm also doing an lsa conversion, I only have cat back and ADM intake, with lsa conversion can I get up to 550hp total (not rwhp)?
Should I also change pulley

hammdo · 02-17-2016, 06:50 PM

Yes, pulley now before installing -- 2.55 you'll be glad you did.. You will need injectors and ZL1 Fuel Pump and ADM FPCM. If you don't want to add all of that, stock is good -- I'm right @ 600 RWHP with just 6 PSI boost -- of course, I do have other mods ;o) -- as you may already know....

-Don

01-03-2016, 10:20 PM	#1
supergt99 Drives: 2013 Camaro SS 1LE Join Date: Oct 2014 Location: earth Posts: 288	lsa conversion question im going to start a lsa conversion on my 1le in the next few weeks. what size is the stock upper pulley? how much will i end up with on stock pulley. ill be running the ls9 cam with LT heads and off road exhaust.

01-03-2016, 11:39 PM	#2
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	You'll want to install a 2 piece pulley now, trust me... 2.75 or 2.55... I'm running the stock pulley but vvt ss1, ported heads with headers, cai and I'm at 590 RWHP but each car varies.. -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

01-04-2016, 01:02 AM	#3
Dirtdog Pro Hide n Seek Player Drives: 2010 SS LS3/LSA 620whp/630tq Join Date: May 2009 Location: Tucson, AZ Posts: 921 View My Garage	stock pulley? 91octane? 570whp ish that's where im at and you described a similar setup to mine. I don't have headwork though. your sig says NF Cam in your 1LE. why not keep that, the LS9 is downgrading. I wish I had upgraded the pulley at least one size. __________________ 620whp/630wtq. ADM LSA Conversion, E85, PFADT Tri-Y Headers into Borla S, PFADT Swaybars, Springs, Links, 20x10 20x11 Forgestar F14s, Lots of AAC

01-04-2016, 12:42 PM	#4
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	Ls9 cam is good for boost and I don't think the valve springs need to change if stock are still on but, if you can, I'd go with a BTR PD stage 2 or 3 cam. If the NF is an n/a cam, might be a good reason to change.. -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

01-04-2016, 12:45 PM	#5
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	BTW, more power does not necessarily mean better ets... ;o) -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

01-04-2016, 11:53 PM	#6
ilir14 Drives: Camaro ss 1le Join Date: Jan 2014 Location: Houston,Tx Posts: 472	[QUOTE=hammdo;8821572]You'll want to install a 2 piece pulley now, trust me... 2.75 or 2.55... +1

01-06-2016, 07:23 AM	#7
supergt99 Drives: 2013 Camaro SS 1LE Join Date: Oct 2014 Location: earth Posts: 288	I'll look into swapping the pulley now. I didn't swap the night fury cam out yet. I think I'm gonna leave it in and give it a try. I love the idle.

02-13-2016, 01:16 PM	#8
supergt99 Drives: 2013 Camaro SS 1LE Join Date: Oct 2014 Location: earth Posts: 288	Still thinking about the cam. Is 600rwhp possible with ls9 cam and 2.75 pulley?

02-13-2016, 02:17 PM	#9
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	2.55 and injectors may get you close.. 580s to 590s. BTR PD stage 1 and 2.55 had done it or real close... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

02-13-2016, 03:23 PM	#10
ttshovel Drives: 12 camaro ss, 72 chevelle, 91camaro Join Date: Dec 2013 Location: findlay,oh Posts: 2,070	I bet you will break 600whp using the night fury cam and a 2.5 upper Stock upper is 2.95 __________________ 12 camaro ss 427lsx, th400, f310 heads, crower shaft mounts, gpi specd solid roller, shearerfab 2k hp a/w, twin bullseye 88mm turbos, hughes pro ssx bolt together converter, holley dominator, 8.50 cert, backhalf, Ford 9", 33x17x16 tires, c16 fuel

02-13-2016, 03:35 PM	#11
ilir14 Drives: Camaro ss 1le Join Date: Jan 2014 Location: Houston,Tx Posts: 472	I have BTR stage 1 and 2.75 pulley pushing 650+ rwhp, it will definitely get you over 600

02-17-2016, 10:56 AM	#12
jose1003 Drives: 2010 Camaro 2SS Cyber Gray Join Date: Jul 2009 Location: El Paso, Texas Posts: 1,132	What pulley would you all go with, I think adm sells one of the best pulley I'm also doing an lsa conversion, I only have cat back and ADM intake, with lsa conversion can I get up to 550hp total (not rwhp)? Should I also change pulley __________________

02-17-2016, 06:50 PM	#13
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,709 View My Garage	Yes, pulley now before installing -- 2.55 you'll be glad you did.. You will need injectors and ZL1 Fuel Pump and ADM FPCM. If you don't want to add all of that, stock is good -- I'm right @ 600 RWHP with just 6 PSI boost -- of course, I do have other mods ;o) -- as you may already know.... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577