Generation III Internal Engine 1997-2006 LS1 | LS6
Sponsored by:
Sponsored by:

lq4 build

Thread Tools
 
Search this Thread
 
Old 06-30-2009, 09:08 PM
  #1  
On The Tree
Thread Starter
 
DAH32's Avatar
 
Join Date: Feb 2009
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts

Default lq4 build

I have a stock lq4 being shot with a 100 shot of NOS in my 99 Silverado right now. Truck has a 5 speed and 3.42 gears with a locker and slapper bars. It is alot of fun, but the 5 speed just ain't wanting to be speed shifted. I'm going to be installing a T-56 6 speed in the near future. Probably upgrade the rear end to 3.73 gears and a aftermarket locker.

Questions on the motor. Are the internals forged? My computer can take a cam up to 220 duration. I'm going to swap some 243 heads on the motor to bump up the compression to run a bigger cam and get more compression. I'm just looking for a combo that will allow me to have fun on the street and do some rolling burnouts, pull the chevelle to the track, maybe run the truck down the track some.

Anyone have a good lq4 combo? Say compression around 10 to 1 or 10.3 to 1 that will get you around 430 horse at the crank.

Thanks
Old 06-30-2009, 10:30 PM
  #2  
On The Tree
iTrader: (5)
 
StingrayCrazy's Avatar
 
Join Date: Aug 2006
Location: Syracuse
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by DAH32
I have a stock lq4 being shot with a 100 shot of NOS in my 99 Silverado right now. Truck has a 5 speed and 3.42 gears with a locker and slapper bars. It is alot of fun, but the 5 speed just ain't wanting to be speed shifted. I'm going to be installing a T-56 6 speed in the near future. Probably upgrade the rear end to 3.73 gears and a aftermarket locker.

Questions on the motor. Are the internals forged? My computer can take a cam up to 220 duration. I'm going to swap some 243 heads on the motor to bump up the compression to run a bigger cam and get more compression. I'm just looking for a combo that will allow me to have fun on the street and do some rolling burnouts, pull the chevelle to the track, maybe run the truck down the track some.

Anyone have a good lq4 combo? Say compression around 10 to 1 or 10.3 to 1 that will get you around 430 horse at the crank.

Thanks
You will need torque... (Swap out your heads and intake with L92's / L76) + (cam ground with Comp XER lobes 220 / 228, PRC Gold spings) = 10:1 static, DCR of ~8.0 and 430HP to the ground easy with no spray...
Old 07-01-2009, 06:25 AM
  #3  
On The Tree
Thread Starter
 
DAH32's Avatar
 
Join Date: Feb 2009
Posts: 191
Likes: 0
Received 0 Likes on 0 Posts

Default

Hey thanks.

What is a NI crank? Nitrated?

Also never heard of the XER line. Comp has so many lines. I will look into it.
Old 07-04-2009, 04:00 AM
  #4  
TECH Resident
iTrader: (3)
 
ramdaspadhye's Avatar
 
Join Date: May 2005
Posts: 889
Likes: 0
Received 1 Like on 1 Post
Default

I would think that a 220/23x would be more suited for those L92 heads....
Old 07-04-2009, 09:48 AM
  #5  
On The Tree
iTrader: (5)
 
StingrayCrazy's Avatar
 
Join Date: Aug 2006
Location: Syracuse
Posts: 146
Likes: 0
Received 0 Likes on 0 Posts
Default

Nitrated yes Almost time for grilling...
Old 07-04-2009, 10:11 AM
  #6  
13 Second Truck Club
iTrader: (17)
 
726.0chevelle's Avatar
 
Join Date: Aug 2008
Location: baton rouge
Posts: 637
Likes: 0
Received 0 Likes on 0 Posts

Default

im thinking of the l76 l92 head swap for my lq4 what is needed to make the l76 truck intake work on my drive by wire and return style fuel system
Old 07-04-2009, 10:59 AM
  #7  
TECH Junkie
iTrader: (4)
 
Soul TKR's Avatar
 
Join Date: Jun 2004
Location: San Diego, CA
Posts: 3,543
Likes: 0
Received 1 Like on 1 Post

Default

My LQ4 build is in my sig pic... but I'm not running nitrous...




All times are GMT -5. The time now is 01:18 PM.