T-Trim 383
Thread Starter
Burning Brakes
Joined: Jul 2008
Posts: 754
Likes: 3
From: port Orange FL
T-Trim 383
I have a A4 LPE 383 stroker with a A&A SQ S-trim kit and makes great power early. I checked my dyno sheet between 5800 rpms and 6200 rpms I only make 7 hp more on 9lbs of boost. I called vortech and told them my pulley size and they said I'm out of air at that rpm. I'm going to go to the T-Trim and 8 rib, run 12lbs of boost. I want to know if I'm going to lose power and my quick throttle response down low with a bigger blower or is my engine big enough that I won't notice. Now at 575/525 converter unlocked.
Thanks
Thanks
Race Director
Joined: Nov 2001
Posts: 18,682
Likes: 4
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12
You will be fine. I had an S trim and now running a T trim on 346. I have noticed the T to be teeny bit sluggish at the lower RPMs for a second or so. It REALLY comes alive after 3500 RPMS and hit hards at the big end and build boosts all the way upto 7k RPMS 
Burning Brakes
Joined: Sep 2004
Posts: 1,089
Likes: 4
From: Ocala FL
I have a A4 LPE 383 stroker with a A&A SQ S-trim kit and makes great power early. I checked my dyno sheet between 5800 rpms and 6200 rpms I only make 7 hp more on 9lbs of boost. I called vortech and told them my pulley size and they said I'm out of air at that rpm. I'm going to go to the T-Trim and 8 rib, run 12lbs of boost. I want to know if I'm going to lose power and my quick throttle response down low with a bigger blower or is my engine big enough that I won't notice. Now at 575/525 converter unlocked.
Thanks
Thanks
I sent you a PM with a vortech prepared report comparing the S and T trim. The last two pages have charts and should address your questions.
Thread Starter
Burning Brakes
Joined: Jul 2008
Posts: 754
Likes: 3
From: port Orange FL
Thanks,
Lee
