L33 build vs lq9
Hi all, I picked up a 2005 Sierra SLT with an l33 last summer for $1000 Canadian. Always wanted an LS powered vehicle and I thought that was a great way to get started and it runs and drives great. I can get 6l's all day long for $240.
so now I'm at a cross road, either way I will be getting LS FiTech 750hp kit.
My goals are in the 550 to 600whp range.
basically some stiffer valve springs and a turbo freshen up my engine a bit and I will be there. Or do I build a 6l with l92 heads and aggressive cam. Will get me close and can turbo next year for even more power.
once i buy my inatke I am committed.
The 102mm throttle body will probably give up some torque down low when not in boost on a 5.3 no doubt, so I would want to size my turbo so it starts to boost around 1400rpm and take me to 5200 to 5500
Keep in mind this is a budget build and machining costs in Canada are high and our dollar is the ***** right now. Thanks in advance for you opinions and advice.
so now I'm at a cross road, either way I will be getting LS FiTech 750hp kit.
My goals are in the 550 to 600whp range.
basically some stiffer valve springs and a turbo freshen up my engine a bit and I will be there. Or do I build a 6l with l92 heads and aggressive cam. Will get me close and can turbo next year for even more power.
once i buy my inatke I am committed.
The 102mm throttle body will probably give up some torque down low when not in boost on a 5.3 no doubt, so I would want to size my turbo so it starts to boost around 1400rpm and take me to 5200 to 5500
Keep in mind this is a budget build and machining costs in Canada are high and our dollar is the ***** right now. Thanks in advance for you opinions and advice.
Last edited by BenDiesel; Dec 18, 2016 at 06:28 AM.
550 to 600 is easy money these days. no need for aftermarket fuel injection either.
vs racing gt45 kit in one of many flavors, trickflow sloppy stage 1 cam, sd 80's and a walbro 450
vs racing gt45 kit in one of many flavors, trickflow sloppy stage 1 cam, sd 80's and a walbro 450
Also would make swapping the engine into another vehicle down the road a bit easier.
And how I justify it to myself is the cost of the software plus paying some one to tune it, and buying the wide bands and injectors seperately. I know it's cost more than buying HP tunners and injectors, but I can make changes on the fly and not have to get it retuned all the time.
You don't need a 102mm throttle body, or that absolutely crap aluminum intake. The stock truck intake and small throttle body have been 7s in the quarter mile in a full weight street car.
Cut the caps off of the stock injectors and they will support 550-600whp.
You've already made 50% of the FITech setup useless.
Cut the caps off of the stock injectors and they will support 550-600whp.
You've already made 50% of the FITech setup useless.





