LQ4 Rods vs LQ9 Rods
01-12-2012, 12:07 PM
#21
04-16-2013, 11:24 PM
#24
anyone ever find out the deal with the rods? im picking up another lq4 this weekend for the heads. its an 05. im currently building a 2000. im gonna take the heads and anything else thatll benefit my turbo build.
04-17-2013, 07:37 AM
#26
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Just for reference,
I had a 2001 LQ4 I ran all last year. The gen3 rods lived all year at 650 to 675whp with no issues at all. At the end of the year I added some boost (740whp) and all was well untill the car unloaded the tires and thats the pass it bent 3 rods.
I had a 2001 LQ4 I ran all last year. The gen3 rods lived all year at 650 to 675whp with no issues at all. At the end of the year I added some boost (740whp) and all was well untill the car unloaded the tires and thats the pass it bent 3 rods.
02-09-2015, 06:04 AM
#29
We'll be doing some testing this year, I think we've figured out a big key to keeping the rods from bending this last year, we pushed the lq4 rods to well over 900rwhp and have my l33(newer style rods) at 855rwhp dyno proven, I'm sure well over 900rwhp tho off the dyno and on the street. 
If I keep my rx7 we'll be putting twins on it and shooting for 1000+ rwhp later this year, all will come down to if we can get time to work on it, right now just too busy working on other peoples cars. I will say I don't think rpm is the issue, at least not at 6500rpm shifts.
If I keep my rx7 we'll be putting twins on it and shooting for 1000+ rwhp later this year, all will come down to if we can get time to work on it, right now just too busy working on other peoples cars. I will say I don't think rpm is the issue, at least not at 6500rpm shifts.
02-09-2015, 01:48 PM
#30
As someone who has bent gen3 rods, I'd say its keeping the torque curve under control.
My car hit 800ftlbs at 4000rpm and it hit it hard. The car is 3600lbs as well. I made a few hits starting around 2500rpm and they ended up bending. Im almost positive if I would have been controlling the boost better (aka slower) I could have kept the motor alive. My timing curve wasnt aggressive at all in this region either.
The motor was very happy around 700-750whp/tq. I only spun the motor 6300rpm on the street. Just my experience
My car hit 800ftlbs at 4000rpm and it hit it hard. The car is 3600lbs as well. I made a few hits starting around 2500rpm and they ended up bending. Im almost positive if I would have been controlling the boost better (aka slower) I could have kept the motor alive. My timing curve wasnt aggressive at all in this region either.
The motor was very happy around 700-750whp/tq. I only spun the motor 6300rpm on the street. Just my experience
02-09-2015, 03:26 PM
#31
As someone who has bent gen3 rods, I'd say its keeping the torque curve under control.
My car hit 800ftlbs at 4000rpm and it hit it hard. The car is 3600lbs as well. I made a few hits starting around 2500rpm and they ended up bending. Im almost positive if I would have been controlling the boost better (aka slower) I could have kept the motor alive. My timing curve wasnt aggressive at all in this region either.
The motor was very happy around 700-750whp/tq. I only spun the motor 6300rpm on the street. Just my experience
My car hit 800ftlbs at 4000rpm and it hit it hard. The car is 3600lbs as well. I made a few hits starting around 2500rpm and they ended up bending. Im almost positive if I would have been controlling the boost better (aka slower) I could have kept the motor alive. My timing curve wasnt aggressive at all in this region either.
The motor was very happy around 700-750whp/tq. I only spun the motor 6300rpm on the street. Just my experience
My turbo doesnt go positive until about 3500 and nothing is happening till about 4000. I'd like it to come in sooner, but it may be a blessing in sense that it is keeping things from blowing apart.
