Next steps... new project - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

bct10985 · 02-16-2018, 01:02 PM

Not an issue with the lsx iron block

dreksnot · 02-16-2018, 01:07 PM

Been told by BTR that the LSR427 is fine for big boost also.

CGbambam · 02-16-2018, 01:43 PM

Quote:

Originally Posted by BiggFoot

Go for it Quick! Should be a monster!

Now I will show my ignorance to the group . . . If you go 427 LSX is high boost still an issue?

lsx with 1/2 studs and 6 bolt heads it wont. you'll bend the rods before you lift a head

AGP Turbo · 02-16-2018, 02:01 PM

Decent amount of bad info and misunderstanding in this thread. Engine shops what to sell you more labor.
Take it for what it's worth-
Do a 4.0" stroke aluminum block, (LSA is better) 417cid is the sweat spot. Stock heads with ARP studs will not lift with a good tune. You will have block problems before you lift heads. Now iron 6.0 blocks will support more than 4-bolt heads will take. The world is mostly full of bad tuners with crazy wives tale ideas and excuses.
Never sleeve an LS block.

KISS
If doing an LS3 block anything, stop at about 1000wtq and always have a conservative tune. LSA block is about 100tq more.

Punisher_ATX · 02-16-2018, 02:14 PM

Quote:

Originally Posted by AGP Turbo

Decent amount of bad info and misunderstanding in this thread. Engine shops what to sell you more labor.
Take it for what it's worth-
Do a 4.0" stroke aluminum block, (LSA is better) 417cid is the sweat spot. Stock heads with ARP studs will not lift with a good tune. You will have block problems before you lift heads. Now iron 6.0 blocks will support more than 4-bolt heads will take. The world is mostly full of bad tuners with crazy wives tale ideas and excuses.
Never sleeve an LS block.

KISS
If doing an LS3 block anything, stop at about 1000wtq and always have a conservative tune. LSA block is about 100tq more.

This.... And half true. As someone who works at an engine shop I reccoment NOT going any larger than a 4" stroke for boost because we dont want to be blamed when they have issues. LSX 427 is completely different its a 4.125 bore over 4" stroke.

bct10985 · 02-16-2018, 02:39 PM

Whats wrong with a sleeved block?

RealQuick · 02-16-2018, 03:06 PM

Just got off the phone with TSP, not a problem switching out to a 4.0 stroke (416ci), so that’s what I switched to.

AGP Turbo · 02-16-2018, 03:12 PM

Quote:

Originally Posted by bct10985

Whats wrong with a sleeved block?

The factory sleeves are ribbed on the outside and held in place while the aluminum block is cast around them. They are then one integral unit, literally woven into each other and designed as such to strengthen both. With the aluminum backing the iron sleeve and sleeve adding rigidity to the aluminum block. Machining the sleeve out ruins this and pressing in a smooth sided sleeve, and sandwiching it in place, is not ever going to be the same.
ERL went out of business specializing in this, I would assume because of the high failure rate, based on what we saw. More headgasket issues and more spun bearings and I conjecture was because the backbone of the block was taken out.

Again KISS. Nothing wrong with the stock sleeves. They are brilliant and don't need to be super thick, by design. At the point you think you need sleeves, you actually need an iron block.

AGP Turbo · 02-16-2018, 03:15 PM

Quote:

Originally Posted by RealQuick

Just got off the phone with TSP, not a problem switching out to a 4.0 stroke (416ci), so that’s what I switched to.

Now 57/57 turbos are all you need to make 1000whp, and are really quick spooling on a stroker. Perfect combo for the M/T car

RealQuick · 02-16-2018, 04:08 PM

Looking on this site, seems guys need atleast a 62mm turbine wheel to make my goal at 18-20psi. I only want to order the turbos once. I’ll research the 57/57’s some more. The goal is to use 93+meth.

AGP Turbo · 02-16-2018, 04:20 PM

We've have multiple guys make 1000whp on M/T car's with the 57/57 and on a stroker you will do it under 20psi. You would do it with more ease on 62/62, just a little lag.

hillshooter · 02-16-2018, 04:22 PM

Quote:

Originally Posted by AGP Turbo

We've have multiple guys make 1000whp on M/T car's with the 57/57 and on a stroker you will do it under 20psi. You would do it with more ease on 62/62, just a little lag.

I see you dont offer the 57/62 anymore. any reason for that? is it a good upgrade to go to 62/62?

hillshooter · 02-16-2018, 04:24 PM

Quote:

Originally Posted by RealQuick

Looking on this site, seems guys need atleast a 62mm turbine wheel to make my goal at 18-20psi. I only want to order the turbos once. I’ll research the 57/57’s some more. The goal is to use 93+meth.

I have a 57/62 AGP on a stroker and make around 18PSI at 60% duty cycle on the electronic controller. thats in 4th gear when its really loaded.

AGP Turbo · 02-16-2018, 04:26 PM

Quote:

Originally Posted by hillshooter

I see you dont offer the 57/62 anymore. any reason for that? is it a good upgrade to go to 62/62?

We still do. All the pull down menu's on the website are a little old, and some are new. We're really fined tuned exactly who should have what combos. On a M/T car these days, I'd go 62/62 if you want to easily hit well over 1000whp.

02-16-2018, 01:02 PM	#29
bct10985 Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012 Location: Dover, De Posts: 1,451	Not an issue with the lsx iron block __________________ ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph

02-16-2018, 01:07 PM	#30
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,603 View My Garage	Been told by BTR that the LSR427 is fine for big boost also. __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

02-16-2018, 02:39 PM	#34
bct10985 Drives: 2010 2SS LS3, 2013 duramax Join Date: Nov 2012 Location: Dover, De Posts: 1,451	Whats wrong with a sleeved block? __________________ ECS Ysi-B, cam, Tsp 2" longtubes, Squash dual pumps, Id1300s, meth, 4L80e, FTI 3600, ZL1 3.73 diff, BMR suspension, 15" conversion, weld rts mt 275 et street R. 9.6@147mph

02-16-2018, 02:01 PM	#32
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	Decent amount of bad info and misunderstanding in this thread. Engine shops what to sell you more labor. Take it for what it's worth- Do a 4.0" stroke aluminum block, (LSA is better) 417cid is the sweat spot. Stock heads with ARP studs will not lift with a good tune. You will have block problems before you lift heads. Now iron 6.0 blocks will support more than 4-bolt heads will take. The world is mostly full of bad tuners with crazy wives tale ideas and excuses. Never sleeve an LS block. KISS If doing an LS3 block anything, stop at about 1000wtq and always have a conservative tune. LSA block is about 100tq more.

02-16-2018, 03:06 PM	#35
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	Just got off the phone with TSP, not a problem switching out to a 4.0 stroke (416ci), so that’s what I switched to.

02-16-2018, 04:08 PM	#38
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	Looking on this site, seems guys need atleast a 62mm turbine wheel to make my goal at 18-20psi. I only want to order the turbos once. I’ll research the 57/57’s some more. The goal is to use 93+meth.

02-16-2018, 04:20 PM	#39
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	We've have multiple guys make 1000whp on M/T car's with the 57/57 and on a stroker you will do it under 20psi. You would do it with more ease on 62/62, just a little lag.