Z28-4-Chris

iTrader: (2)

Anyone who has done this install, can you comment on your rear wheel power? I am trying to decide to go this route or build a higher comp motor.

Thanks!

lowerthanyou00

iTrader: (8)

I have this built and running but no numbers. Its a LQ4 block with ZL1 top end ls9 cam all forged assembly at 9.5:1. You'll have to run square port heads such as the zl1 LSA heads or LS3.

Z28-4-Chris

iTrader: (2)

Yep, I am aware. How does the vehicle feel?

lowerthanyou00

iTrader: (8)

Well butt dyno feels like it has endless torque off the bottom. Blower is pretty quiet but overall I'm more than pleased with it and know it'll be rock solid reliable. Perfect idle and comes off throttle nice and even. Keep in mind this is the first vehicle I've driven with well over 450hp to the wheels. And the car isn't exactly heavy either. I imagine my combo should be around 600 at the wheels.

94 slow

Which pulleys did you use? Corvette zr1 or Camaro lsa?

dr_whigham

iTrader: (49)

I've considered this route down the line for my 04 Vette...

lowerthanyou00

iTrader: (8)

Stock LSA pulley for now until it's broken in, then I'll probably change it and upgrade injectors to 850s

94 slow

Do you have a build thread? Also, did you switch the whole accessory drive over to the Lsa accessory drive?

lowerthanyou00

iTrader: (8)

Yeah everything is brand new ctsv accessories. Engine is in a 72 firebird. Don't really have much on it, just PM me if you have any questions tho.

lsbu

How did you set up the boost bypass solenoid?

LSafrica

I have this with LS3 heads and LS9 cam. I got 500rwhp at 5700 through a 4l80e. I wired the bypass shut and fit a blow-off valve on the lid.

BigMike0147

iTrader: (1)

Just adding my numbers into the mix....

Stock LQ4 shortblock, stock casting 243 heads, 228R cam (from when was NA), stock LSA pulley, front accessory drive from LSSimple, 5-7 lbs of boost

497 RWHP on 93 octane and 525 RWHP on E85. That's from a mustang dyno and during a Texas summer.

toyin

Glad to see this thread! Just bought a standard cab Canyon with the 4cylinder and looking for a LQ4, swap heads and install GM blower

n3mi5is

So *** backwards.....

Wnts2Go10O

iTrader: (12)

no kidding

LSafrica

Easy for you say, the actuator bombed out and since I live in South Africa getting a new one takes six weeks+ the bov is what I came up with. I will admit that it was hard on belts. I have since got a second lsa blower and am using the actuator off that, much better.

silent_soul

iTrader: (2)

So I went down the lsa line as it seemed cheaper than a d1sc or better

it wasnt, it was more work and it made the same power or less. Sure the lsa will take nitrous pretty damn good.

Bypass valve is a pain in the ***, cooling system for the lid is annoying and in the end it simply isnt cheaper than just using a stock truck motor and d1sc

VINCE

iTrader: (1)

I agree it is not cheaper. Unless you doing all the labor yourself. When I priced out the D1SC setup on my G8 with a shop installing as compared to doing the LSA conversion with a shop doing it to support 700whp there was more labor cost on the LSA conversion. Hell I even looked at doing a TVS 1900 setup and there is a lot less labor cost on it.


I personally would want to purchase all new parts. Who wants to find out later something has a problem post paying for the labor. Also, whats the benefit of using the LQ4 other than its cheaper unless you are planning on a nice healthy shot of nitrous. The alum blocks weigh less and can hold quite a bit of power.