Seems like most people who want to go with a BIG cam on a DD are unsure of whats too big. Most people who want big are all in the 230+ range.
Out of say a 233/239, Torquer v2, MS3 and T-REX what would be the difference is drivability between the 4. Are they all similiar where its not noticeable? Or is the 233/239 tamer than a T-Rex. MS3?
What the hell throw a T-Rak in there also.

Im going with the MS3 but this post might change my mind. I want a big cam and I know what the big cam characteristics are but whats too big, where driving is somewhat of a hassle. Peopl are always saying you will always want to go bigger. So if Im liking the ms3 why not a T-Rex? Im already there in terms of drivability, no?

If your spinning to 6800rpms, which cam would make you the happiest, make the most power and feel the best throughout the whole RPM range.

Which car would win on the street modded exactly besides the cam?


-Zee

 

BUMP..I'd like to see what gets said here. I'm going TREX but have ridden in neither so I can't help ya. OTHERS CHIME IN!

 

no matter which one you get, GET SOME GOOD LIFTERS....T-Rexs are hard on stock lifters. i like the MS3 myself, it's relatively easy (compared to the trex or other cams available.) on the valvetrain for the amount of power it is capable of making.

 

If I had to choose I would think the smallest of the three. Im not really sure what all the specs are by memory. From the sound of it all of these cams a big for 346ci. I would think that all of these cams could pull hard all the way up to 6500rpm maybe even 6800 rpm. But from low to mid range the biggest cam is really gonna suck unless you get some gears. Or just get a cam thats speced for your needs.

 

I would upgrade gears if the 3.42s with my m112 tranny arent enough.
I think my stock setup should act like 3.90s.


And for the people who think these cams are too big, whats the biggest and most efficient CAM to YOU?

 

Ridden in both. They are semi comparable. T-Rex was a fairly rough ride actually, but that was because it was untuned.

 

I like my 244/248 cam for DD. You just need gears to help out in most cases.
I would easily run bigger or go solid roller everyday.

 

trex = 242/248 .608/.612 110
ms3 = 237/242 .603/.609 113, 114
233/239 = 233/239 .595/.603 112, 113, 114
torquer = 232/234 .595/.598 112, 113, 114

all 3 of the TSP cams are tamer than a TREX b/c they are smaller and easier to tune. but if you can get a good tuner to tune your car, a TREX can be a good driving cam. comp is grinding the trex on xer lobes so the other cams are gonna be easier on your valvetrain. i am not sure who grinds TSP's cams now, if anyone knows, lets hear it.

 

Comp grinds actually.

 

Remeber there is only one cam that will give you optium results at a given rpm range. Which also takes into account your CI, CR, Headflow, FI, N20...etc. How many cams do some of these sponsors have to come out with. Take a look at some of the cams you talked about with the exception of the t-rex they are almost about the duration if Im not mistaken. But they all say will peak at 6200+rpm. IMO Unless you race all the time or you only drive the car once in a while. Then some of these cams may be the one for you. But if you are a normal drive you will only seeing these RPM's maybe less then 1% of the time. Then get a cam where you will be able to get the most use of it. Just My Opioin. I just get tired of see companys make bigger cams and put them on a wider lsa to improve driveablity. Anytime someone tells you we can widen the lsa to improve driveablity is a sure sign the duration for the job is to long. Always remeber it is the combination of parts that you have and how they work together. Is what matter in performace. When its all said and done. There are only a hand full that can correctly spec a cam out for you that is with in 1% to 2% optium for your requirement.

 

If you are driving around town, then no...you arent going to see that kind of RPM. I enjoy the spirited on-ramp ocaisionally and the ripping down the highway almost on a daily basis. Depends on your habits.

 

I myself am going with the TREX and a 4000 stall, and eventually 3.73s I believe. I was originally attracted to the MS3 after hearing stories and seeing videos, but after searching through posts I saw many guys who went ahead with the TREX as a DD. I don't race my car very often, I usually just nailing it on on ramps, country roads, or on the HW. I wanted to go as big as possible so I never said "I wish I woulda..." I can deal with driveability issues, however, I cannot deal with paying another grand for a new cam and new install.
As for the powerband, I am totally fine pulling up next to a Cobra and losing it out of the hole. Because I believe 98% of the time I'll scream past him at 7k RPMS 80 feet down the line. Build your car to be what you want it to be and not what everyone tells you it should be.

 

i just got an ms3 and it says prc on the cam sheet. also this thing pulls like mad, low and mid range isnt bad at all.

 

PRC through TSP = The makers of the MS3...hence why it suggests.

 

I'm debating the MS3, Trex, and comp 244/248... they'll go in a 347 with ported heads and supporting mods... not sure which route to go yet but I'm wanting a 10.99 timeslip NA with a T56 and slicks. Thoughts/suggestions?!?!

 

I have to try and clear a few things up since there are false statements always posted in these threads about the T-Rex cam by people that don't know.

I have yet to see a T-Rex eat stock lifters..not saying there aren't any out there, but I haven't seen them. Most everyone I know running the T-Rex are on stock lifters including myself. I have had it in my car for a year now and race often spinning to 7000 rpm

Oh and the comment that it's on a Comp XER lobe is wrong also. It's a Cam Motion grind from what I understand.

 

I'm running the t-rex myself. Very happy with the choice. Not only does it sound like it will rip you in pieces but it backs it up too. And with a good tune, its a walk in the park, driving it on the street.

 

But for a DAILY DRIVER which car will drive better?
A car that see's all kinds of rpms all day lol. ms3 sounds right with spray but is the 233/239 really more pleasureable to drive in the mid range?

As long as the ms3 isnt DEAD down low I dont see it being a problem.

 

With either of those cams (MS3 or TREX) you will most likely need 4.10s in an M6 or a 4000 stall with an auto (3500 if you plan on spraying). I've heard driveability on both is no problem with a good tune.

 

I spoke with Thunder Racing today and the TRex is not on XER lobes, its not a Cam Motion grind, and it is not on LSK lobes. I just wanted to clarify that once and for all.... that is straight from TR themselves.

*Also, TR finds it funny how everyone thinks the TRex is not a great cam for aftermarket heads. Yes, it was designed for use with stock heads but that is only so people could put them in stock longblocks with no PTV clearance issues. It will only perform better with better heads

*I believe I spoke with Jeff at TR too.