TSP 231/237, is this a street cam
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
https://ls1tech.com/forums/dynamometer-results-comparisons/231083-tsp-231-237-67-rwhp-gain.html
https://ls1tech.com/forums/dynamometer-results-comparisons/225097-dyno-results-tsp-231-237-patriot-5-3-stage-ii-heads.html
https://ls1tech.com/forums/dynamometer-results-comparisons/213862-absolute-5-3-heads-tsp-231-237-dyno-results.html
and there is plenty more under TSP 231/237 advanced search > dyno section
https://ls1tech.com/forums/dynamometer-results-comparisons/225097-dyno-results-tsp-231-237-patriot-5-3-stage-ii-heads.html
https://ls1tech.com/forums/dynamometer-results-comparisons/213862-absolute-5-3-heads-tsp-231-237-dyno-results.html
and there is plenty more under TSP 231/237 advanced search > dyno section
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Yeah I hope your neighbors are nice to you because they will be your worst enemy when you drive down the street with that 231/237. That combo'd with true duals is music to my ears 
Get it!
Get it! 
TECH Veteran
Joined: Aug 2003
Posts: 4,954
Likes: 1
From: Kent WA
hehe... yeah, my neighbors can hear me coming a few blocks away. The people right across the street from me hate it when I start the car up in my garage, especially if it's early in the morning on a weekend. 
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
TECH Regular
Joined: Dec 2003
Posts: 434
Likes: 0
From: Denton, TX
The TSP 231/237 is a great daily cam IF you have a great tune. Before I had the car tuned, the car wouldn't idle when it was cold. Now just turn the key and it idles great - hot or cold motor.
I'm running the cam with dual crane valve springs, titanium retainers, and hardened push rods.
Running this setup through true duals dumped at the axle is about as loud as you'd want to be around town. It's loud! I had the car dyno'd when I had everything installed and tuned, but I had a bad o2 sensor, so the numbers are off.
I'm running the cam with dual crane valve springs, titanium retainers, and hardened push rods.
Running this setup through true duals dumped at the axle is about as loud as you'd want to be around town. It's loud! I had the car dyno'd when I had everything installed and tuned, but I had a bad o2 sensor, so the numbers are off.
TECH Regular
Joined: Dec 2003
Posts: 434
Likes: 0
From: Denton, TX
Here is the sheet with the mods in my sig. I have since replaced the o2 sensors, and got a ported tb. I haven't been back to the dyno yet, but the car pulls very strong up to 6500 (it can go higher but I shift at 6500)
