LQ-4 Motor
LQ-4 Motor How many of you are running an LQ-4 with your turbo applications for an f-body? I'm considering going with that motor for my front mount turbo setup?
Last edited by trnsfmr99; Jun 15, 2009 at 05:44 PM. Reason: Specific info
I personally am not [sticking with 346 until I pass 700bhp, then going to an L92] but I've heard of many people using the LQ4. The stock CR isn't too high or too low, it's already prettygood for a moderate boost setup.
Last edited by Chronicle; Jun 15, 2009 at 02:34 PM.
I've got a brand new LQ4 I got a hell of a deal on and a KBRacing front mount turbo setup with a Turbonetics BB 76 turbo. I haven't installed it into my truck yet, it's just sitting on a engine stand in my shop. 
It's a pretty common route to go since there are so many LQ blocks around, so they're cheap. Car-Part.com FTW. Just say you're looking for an engine block for a 2003 Cadillac Escalade or something.
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im doing the lq4 build too. Its a very popular turbo truck route. Get some arp rod bolts, and you can boost 12 psi all day with a good tune.
I ran a stock LQ4 with just a cam, stock springs and everything. I put rod bolts in it about 1/2 way through the 3rd year. S475 turbo on 12psi non-intercooled the whole time and it saw up to 16psi every now and then with a splash of race gas. Car (buick GN) got 24-26mpg and i put probably 22k miles on it with no problems
Sounds promising. I ordered the Patriot Gold spring kit and have the EPP cam going in the motor. Those ARP Bolts will be my next and should be last thing to order. I'll let you know.
Last edited by trnsfmr99; Jun 20, 2009 at 11:41 AM.
I ran a stock LQ4 with just a cam, stock springs and everything. I put rod bolts in it about 1/2 way through the 3rd year. S475 turbo on 12psi non-intercooled the whole time and it saw up to 16psi every now and then with a splash of race gas. Car (buick GN) got 24-26mpg and i put probably 22k miles on it with no problems
It was in a different car. According to 1/4 mile calcs it was putting down anywhere from 540whp-8-9psi and 12-14* on pump, to 690whp-16psi and 18* timing on good gas
Thanks, lookin for around 620rwhp, ordered the arp bolts, so everything will be here for this project to begin next week.
Click here to see Video Yup, I had the lq4 with an ls6 cam and 918 springs, pushing 14psi and this are the results. With an 80-e btw.
Click here to see Video
Click here to see Video Thank you, Chronicle, by the way. When I went on that site, found one with 13k for 1850.
Yup, I had the lq4 with an ls6 cam and 918 springs, pushing 14psi and this are the results. With an 80-e btw.
Click here to see Video
Click here to see VideoLast edited by vff_jeff; Jun 22, 2009 at 02:47 AM.
I知 always here I just don稚 post much, it had the t76 that time, been working on a new setup, but I知 taking it slow do to that I知 building a performance shop which I知 going to rent to a good friend of mine.
I've got a t76mm front mount turbo going on my lq-4, which is going in my f-body.