Possibly getting an MS3 cam
Vlad, take a look at some of TSP's dyno sheets. Here is the train of thought I had when buying a cam for my l92/lq4 setup.
Checkout texas speed stage 1 dyno sheet here:
http://www.texas-speed.com/images/media/225230.jpg
Stage 3 dyno sheet here:
http://www.texas-speed.com/images/me...Cam231.236.jpg
Stage 1 cam is a 225/230 112LSA which means 3.5 degrees crank overlap
Stage 3 cam is a 231/236 111LSA which means 11.5 degress crank overlap
Stage 1 makes 560hp, stage 2 makes 569hp. So 9hp difference peak.
Now look at the low end of things The stage 1 cam makes a minimum of 10-20hp more than the stock LS3 cam from 2200 RPM up. At 4500rpm and up it makes up to 80hp more than stock.
Time for the stage 3 cam. It makes nearly stock power until 4500rpm or so.
The torque curves tell the same story.
Ultimately the 225/230 on a 111LSA is what I chose. The small 225/230 will be much more driveable and make MORE POWER than the big cam under 4500RPM. Considering I problably will shift this thing around 6000RPM at the track, the big cam didn't look like it would do much for me. The degrees of overlap is what really did it for me. The big cam would sound a little gnarlier, but drive like garbage at low RPM.
225/230 112 still sounds great
Pontiac G8 w/ 225/230, 112 LSA cam - YouTube
Checkout texas speed stage 1 dyno sheet here:
http://www.texas-speed.com/images/media/225230.jpg
Stage 3 dyno sheet here:
http://www.texas-speed.com/images/me...Cam231.236.jpg
Stage 1 cam is a 225/230 112LSA which means 3.5 degrees crank overlap
Stage 3 cam is a 231/236 111LSA which means 11.5 degress crank overlap
Stage 1 makes 560hp, stage 2 makes 569hp. So 9hp difference peak.
Now look at the low end of things The stage 1 cam makes a minimum of 10-20hp more than the stock LS3 cam from 2200 RPM up. At 4500rpm and up it makes up to 80hp more than stock.
Time for the stage 3 cam. It makes nearly stock power until 4500rpm or so.
The torque curves tell the same story.
Ultimately the 225/230 on a 111LSA is what I chose. The small 225/230 will be much more driveable and make MORE POWER than the big cam under 4500RPM. Considering I problably will shift this thing around 6000RPM at the track, the big cam didn't look like it would do much for me. The degrees of overlap is what really did it for me. The big cam would sound a little gnarlier, but drive like garbage at low RPM.
225/230 112 still sounds great
Pontiac G8 w/ 225/230, 112 LSA cam - YouTube
Those aren't bad choices. I would still run one of these if it were me.
http://www.tickperformance.com/tick-...1-ls6-engines/
http://www.briantooleyracing.com/ls1...ge-ii-cam.html
Advanced Induction also makes a decent midrange cam somewhere around the 226/234 range and is proven to make good all around power.
http://www.tickperformance.com/tick-...1-ls6-engines/
http://www.briantooleyracing.com/ls1...ge-ii-cam.html
Advanced Induction also makes a decent midrange cam somewhere around the 226/234 range and is proven to make good all around power.
TECH Apprentice
Joined: Jun 2014
Posts: 305
Likes: 1
From: Houston, Texas
I have a 235/240 on a 111 LSA and it's a beast. I had a 228r before and while I don't have a dyno comparison, the larger cam feels like it hits a lot harder and never lets up. My 228 would level power off when the 235/240 keeps pulling. At first the bigger cam felt almost slower but it was really just more linear and didn't drop off. Butt dyno says same or slower but speedo moves with a lot more authority and I beat cars that I used to loose to. I daily drive this set up and it's fine.
Donkey dick cam is probably the worst choice possible for autox/road racing.
You need to look into something that builds strong mid-range and a wide power band as opposed to trying to hit a peak number.
You need to look into something that builds strong mid-range and a wide power band as opposed to trying to hit a peak number.
