231/237 233/239
TECH Resident
Joined: Dec 2003
Posts: 797
Likes: 0
From: Long Island, NY
Originally Posted by nokeman
No thats not what I am sayin. I was saying the Ms3 you have to wait for peak power longer than you would have to wait for peak power in the 233/239
Oh ok thanks for clarifying.
Sorrry.
Originally Posted by SLP4CamaroSS
can you beat yoru friend
After riding in his car, my vote is for the 233/239. No only do I like the sound of my car better (we have the same headers and Y) but he's lacking a little bit of midrange. Pulls good up top, but from 3500 to 5000 it doesnt feel like it pulls as hard as it should. It's hard for me to remember before I had heads, but I think my car pulled a bit harder. We had the same tuner too.
I think the faster ramp rate is gonna give you a little more SOTP umph if you know what I mean. And it's good if you have stock heads, the longer duration on the exhaust gives more time for the exhaust to exit. I love this cam. It pulls hard all the way to 6700 where I shift. Peak power is at 6100. People were getting segnificant gains from the 231 / 237 with this cam.
Originally Posted by nokeman
Do you have a graph of this cam? Id like to see just hard hard it pulls all the way up to 6100.
!LS1 11 Second Club
Joined: Apr 2003
Posts: 7,133
Likes: 2
From: Miami
Originally Posted by cenTX-LS1
I believe the 231/237 is on the xe lobes instead of the xer lobes of the newer 233/239. I was told by one of the guys at TSP that this is why the peak #'s will be similar but area under the curve is better on the 233/239. A good bit gets picked up in the midrange. All in the lobes I guess. I was leaning towards the 231/237 since it will be a little nicer on the springs and is still a proven performer.
-J
-J
TECH Enthusiast
Joined: Jul 2005
Posts: 732
Likes: 0
From: Herndon, VA
Originally Posted by cenTX-LS1
To answer the earlier question you would be at 119mph in 4th gear at 6400 rpm w/ 4.10's. This is assuming a 275/40/17 tire. Figure on about 2mph per 100 rpm after that.
-Jason
-Jason
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
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
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0
Brett Foote
TECH Enthusiast
Joined: Jul 2005
Posts: 732
Likes: 0
From: Herndon, VA
Originally Posted by SLP4CamaroSS
which cam be better for a dd? and waht lsa
Ha, ha... the answer depends entirely on your definition of DD, and most people would probably say all three of these cams are at the upper limit of what most would characterize as DD. So it's a pretty close to a tie. Maybe a little edge goes to the lazier lobes of the 231/237, but not much. The other key factor is the quality of the tuning. Each of these cams also has the potential to be a dog without a good tune. But if you like big lope, you expect to get taller gears, and if you're willing (or eager as hell) to spin the motor to peak power, then yeah, they all could be DD's. Choosing the 112+4 will help you by bringing the Peak power earlier in the RPMs and a little bit lower rpms at peak power. Makes it easier to get to peak power, and if you don't spin up to peak power then you're leaving a bunch of designed power on the table, and should choose a cam that peaks lower. It doesn't sound huge by today's standards, but the Comp 228 is a good alternative to these cams, if you'd prefer to not to spin the motor to 6400. I recently saw a mildly modded (no LT's) 2000 camaro put down 396/376 with just a 228 cam+pulley swap.
[EDIT] \/\/\/...good point about more mid-range power and torque for the 233/239, TSP also has the 228R.
Last edited by FUN LS1; Mar 23, 2006 at 10:09 AM.
Sorry I'm slow getting into this post guys! The 233/239 makes about the same hp as the 231/237, but it makes better mid range & better torque. That's the main reason we swapped over to the 233/239 from the 231/237. The 233/239 camshaft works well & can be ordered in a little wider lobe seps for guys wanting a smoother idle
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
does the 233/239 on a 113 soudn the same as the ms3. my friend dd ms3 was pretty bad *** loved the power but it was missing the midrange feel maybe due to being untuned and having 3.42. But other then that i liked the sound and the power. and i think the 233/239 be better for me i think lol
Originally Posted by SLP4CamaroSS
which cam be better for a dd? and waht lsa
The lower your duration is and the higher lsa you have the more streetable your car will be. A 233 / 239 on a 113 LSA would probably be pretty bad ***. It's like the best of both worlds from that cam and the MS3.
Originally Posted by SLP4CamaroSS
does the 233/239 on a 113 soudn the same as the ms3. my friend dd ms3 was pretty bad *** loved the power but it was missing the midrange feel maybe due to being untuned and having 3.42. But other then that i liked the sound and the power. and i think the 233/239 be better for me i think lol
the 231/237 would be the weakest 233/239 be in the middle and the ms3 be the top im guessing compared on dyno/track im more worried about the track then the dyno. dyno to me just a tuning tool