Twin setup for my stroker
Thread Starter
On The Tree
Joined: Dec 2011
Posts: 118
Likes: 0
From: Colorado Springs, CO
Twin setup for my stroker I've got a 99 Z28 with my LS1 stroked to a 383 and my next major power upgrade is going to be F/I. I'm pretty sure I want a twin turbo setup but not exactly sure the route I want to go. My goal is to break the 1000rwhp mark. I am currently at 468.1 rwhp N/A and my engine setup is as follows:
LS1 block bored to 3.904
SCAT forged rotating assembly with 4.000" stroke and 6.125" I-Beam rods
CP Carillo Bullet Series flat top pistons with 11.5:1 static compression
Trick Flow 515 HP kit including 215cc heads
FAST LSXr intake
FAST big mouth throttle body
FAST 47lb/hr injectors (will need upgrading)
FAST billet aluminum fuel rails and high flow lines
texas speed 100mm MAF
FTRA ram air system
Pretty sure that's everything engine-related. I've already got the transmission and rear-end upgraded so those can handle the power I want. I reached out to Huron Speed and they suggested their V3 twin kit but I don't know enough about turbos to really decide which turbos to get in order to hit my power goals. Any advice? Anyone have experience with the V3 twin kit?
LS1 block bored to 3.904
SCAT forged rotating assembly with 4.000" stroke and 6.125" I-Beam rods
CP Carillo Bullet Series flat top pistons with 11.5:1 static compression
Trick Flow 515 HP kit including 215cc heads
FAST LSXr intake
FAST big mouth throttle body
FAST 47lb/hr injectors (will need upgrading)
FAST billet aluminum fuel rails and high flow lines
texas speed 100mm MAF
FTRA ram air system
Pretty sure that's everything engine-related. I've already got the transmission and rear-end upgraded so those can handle the power I want. I reached out to Huron Speed and they suggested their V3 twin kit but I don't know enough about turbos to really decide which turbos to get in order to hit my power goals. Any advice? Anyone have experience with the V3 twin kit?
TECH Enthusiast
Joined: Jan 2002
Posts: 673
Likes: 0
From: Kansas
Keep in mind that around 1k most ls1's have a problem holding their own. Simply because of the thickness of the cylinder walls. LS2, LS3's and LQ9/4 and 5.3's have thicker walls. Doesn't mean that yours won't hold but there are enough stories out there. Do a search.
That is a terrible block for boost. Most ls1s with factory bore start having issues with cracking sleeves after 700rwhp. Yours is bored making it even worse. I'd pick up a 5.3 or something with thicker sleeves and get new pistons to go with your rotating assembly in the new block.
Thread Starter
On The Tree
Joined: Dec 2011
Posts: 118
Likes: 0
From: Colorado Springs, CO
I've seen quite a few boosted LS1s up here at my altitude pushing close to 1k and haven't heard any issues due to the altitude changing the behavior of the motor. I'll definitely search more and ask around though
