Anyone Run the New TSP 235/239 Cam in their LS3/L92 Yet?
04-03-2013, 08:24 PM
#1
Anyone Run the New TSP 235/239 Cam in their LS3/L92 Yet? Hey guys, thinking of going to a 2007 L92 from an Escalade and was looking at the TSP 235/239 cam.
http://texas-speed.com/p-4011-texas-...-camshaft.aspx
My truck only weighs 4200 (about the same as a Gen 5 Camaro) so I am seriously considering it.
Thoughts/opinions?
The rest of my combo is in my sig, the only thing changing is the 4.8 & the supercharger being replaced.
Thanks guys!!
http://texas-speed.com/p-4011-texas-...-camshaft.aspx
My truck only weighs 4200 (about the same as a Gen 5 Camaro) so I am seriously considering it.
Thoughts/opinions?
The rest of my combo is in my sig, the only thing changing is the 4.8 & the supercharger being replaced.
Thanks guys!!
04-09-2013, 10:21 PM
#4
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he is referring to using the big tsp 235-239 cam in an 07 l92 motor.
with limited compression of 9.7:1, i think its a lil too big....i would think something in the 227-235 range would work better....
with limited compression of 9.7:1, i think its a lil too big....i would think something in the 227-235 range would work better....
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04-11-2013, 08:24 AM
#9
Yup L92 is 10.5:1cr. Thats the block I have with LS3 heads and the TSP 231/236. Through 1 3/4 headers im making 470rwhp, stock heads. Im now looking at some PRC heads and bumping the cr up to 11.5:1. I believe TSP claims about 10hp peak over the 231/236 with the 235/239 cam. I think youll be happy with that setup. These TSP cams are always great performers. Great power and torque curves too.
04-13-2013, 04:42 PM
#10
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fellas, not all l92 head engines have 10.5 like you all seem to think, especially truck engines. the engine he is referring to is a truck motor known as ly6 and has 9.7:1.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
04-13-2013, 04:49 PM
#11
fellas, not all l92 head engines have 10.5 like you all seem to think, especially truck engines. the engine he is referring to is a truck motor known as ly6 and has 9.7:1.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
Last edited by Ford_Assassin; 04-13-2013 at 04:58 PM.
04-14-2013, 10:54 AM
#12
fellas, not all l92 head engines have 10.5 like you all seem to think, especially truck engines. the engine he is referring to is a truck motor known as ly6 and has 9.7:1.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
car l92 head engines are l76s that come in g8s and have more compression.
and ls3s have more compression of course.
comp 227-235 will be nice cam for that truck ly6 motor with 9.7:1 compression. you can mill the heads to raise compression up to 10.5:1 but then safer to go with cam with less lift due to reduced ptv clearance.
04-14-2013, 07:46 PM
#14
I have nothing against TSP, I think they are a great company. What I am about to say has nothing to do with the company or against TSP, I am talking about the logic of selecting components to make power whether you use Comp, TSP, Bullet, Howard, etc.
But I am seeing a common theme around here lately where if a dyno is posted, then guys believe it applies to all combos. It does not.
Think about this, if guys are producing a certain amount of power with certain durations and camshaft timing events around say 224-230 and a guy uses 5-11* more intake duration to produce the same amount of power or less as combos with less intake duration say 224-230, what is the purpose of running a bigger cam, with more overlap, less driveability, and more wasted fuel comsumption?
The only reason to increase intake duration is to increase cylinder fill time, shift power curve to a certain rpm, and in plain terms make more power. But if you are increasing the intake duration and you decrease cylinder fill time and you are not making anymore power than cams with less duration, then you are going backwards and are not making anymore power, and guys are fooling themselves. But it sounds nasty
If you use a bigger cam and do not make more power, then you have over cammed the car and wasted money, fuel, and time. And the worst thing you can do is select a cam based on sound, because sound does not equate to being fast.
I don't want to keep going on and bore guys to death, but Big port, big valve, reversion is not your friend. You want to take advantage of the intial ram air charge and do not need to waste it with excessive overlap that mucks it up during the induction stroke charge or blows it out the exhaust and waste 8-10 degrees of cylinder fill time ATDC with over scavenging that only helps as rpm increases and after peak torque. Your window is pretty much from 0-75* ATDC.
Street car and drag car, overlap rules are not the same especially with these heads.
OP, you can still run a TSP grind, but just look at another option with your truck weight in mind and true intentions.
But I don't know anything so don't listen to me.
But I am seeing a common theme around here lately where if a dyno is posted, then guys believe it applies to all combos. It does not.
Think about this, if guys are producing a certain amount of power with certain durations and camshaft timing events around say 224-230 and a guy uses 5-11* more intake duration to produce the same amount of power or less as combos with less intake duration say 224-230, what is the purpose of running a bigger cam, with more overlap, less driveability, and more wasted fuel comsumption?
The only reason to increase intake duration is to increase cylinder fill time, shift power curve to a certain rpm, and in plain terms make more power. But if you are increasing the intake duration and you decrease cylinder fill time and you are not making anymore power than cams with less duration, then you are going backwards and are not making anymore power, and guys are fooling themselves. But it sounds nasty
If you use a bigger cam and do not make more power, then you have over cammed the car and wasted money, fuel, and time. And the worst thing you can do is select a cam based on sound, because sound does not equate to being fast.
I don't want to keep going on and bore guys to death, but Big port, big valve, reversion is not your friend. You want to take advantage of the intial ram air charge and do not need to waste it with excessive overlap that mucks it up during the induction stroke charge or blows it out the exhaust and waste 8-10 degrees of cylinder fill time ATDC with over scavenging that only helps as rpm increases and after peak torque. Your window is pretty much from 0-75* ATDC.
Street car and drag car, overlap rules are not the same especially with these heads.
OP, you can still run a TSP grind, but just look at another option with your truck weight in mind and true intentions.
But I don't know anything so don't listen to me.
I'm in the process of experimenting this theory..
