CraZee ZO6

Oh ok thanks for clarifying.
Sorrry.

nokeman

iTrader: (30)

yup no problem!!

cenTX-LS1

iTrader: (1)

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

jermzz

iTrader: (18)

Yes, but he has stock heads and gearing so it's not really fair.

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.

nokeman

iTrader: (30)

Do you have a graph of this cam? Id like to see just hard hard it pulls all the way up to 6100.

jermzz

iTrader: (18)

This graph is on a dynapak. These numbers are flywheel. Works out to about 420rw or so.... i have my dyojet dyno around here somewhere........

SouthFL.02.SS

231/237 is a Lunati grind on lunati lobes which are like XE (even lazier in fact). It makes great top end power. It's easier on springs than XER grinds of the same duration and lift.

FUN LS1

Thanks, Jason.

cenTX-LS1

iTrader: (1)

No problem bro.

SLP4CamaroSS

iTrader: (16)

this thread blow up more then i thought it would of you thanks for all the help any body else has any input

nokeman

iTrader: (30)

Thanks for the graph jermzz...looks good!

SLP4CamaroSS

iTrader: (16)

which cam be better for a dd? and waht lsa

SLP4CamaroSS

iTrader: (16)

out of all 3?

FUN LS1

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.

Jason 98 TA

iTrader: (4)

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

SLP4CamaroSS

iTrader: (16)

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

jermzz

iTrader: (18)

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.

jermzz

iTrader: (18)

The 233 / 239 on a 113 I suspect would sound similar to the MS3. There might be a slight difference, but not much. Given the same headers and exhaust and tune, I doubt you'd tell the difference. But all cars are different

SLP4CamaroSS

iTrader: (16)

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

SLP4CamaroSS

iTrader: (16)

i wonder how it is on a 114lsa? the 233/239