What Can I Do?

[Manitcor]

create and account and login over at http://www.cammotion.com/ and there is a form thats asks for all the info they need to make a cam for you. thats what you need.

[zofo61]

Thanks......did it...........I will let u know what I find out

Chris

[bszopi]

Unfort, if that's the only info they gave you, its practically worthless... At what point does the head flow 620cfm? At what conditions? You will need more detailed information for a cam company to do anything for you.

[SappySE107]

It cannot flow 620 cfm unless they are talking the boosted air flow. If you want your heads flowed, I can do both heads for 100 plus shipping. If you want the intakes flowed with the heads, add another 100 and I will give you the head flow numbers and the heads with the intakes on them as well. I seriously doubt RSM has the numbers on your heads and its almost worthless for them to flow another set of heads and give you those numbers as there will be differences between the heads. It would be nice if they did flow something though so you would have an idea. 620 is a bullshit number. 15% larger bowl...lets see, that doesn't mean a whole lot. I mean, it does cause of velocity but its not really telling me anything for flow.

[Manitcor]

you know, for what RSM charges I would expect a bit more service from them, they should flow your heads by default, and whats so hard about putting a PCM tune on the car. Its really not very smart to add boost without tuning. How do you know your not kocking, or running too rich/lean?

[zofo61]

They did Tune the PCM and it not knocking at all.........A/F ratios are monitored via A/F guage and EGT gauge. The car is running smooth as silk. I just want it faster.

Thats the numbers I got and if there are specific numbers That will help tell me what to ask and I will. I dont think its necessary to bash RSM. Thats not why I posted the thread. I probably paid too much for the heads....no doubt , but I think the real test is blowing the doors off of a 2005 SS / SC was proof enough that I have a conteder.

This site has enough posts that are anti-RSM. I just want constructive advice, and so far you guys have provided that. Keep up the good/for the good

Peace

[SappySE107]

I dont think they need to provide numbers by default nor do they have to do flow testing or anything else. It would be nice but I don't know of any other company of than my own doing that. I just started about 2 months ago with it so its not like its even been an option very long. Yes, we have plenty of anti RSM threads, and yes, ive had very bad dealings with them plus they try to discredit anything I do with words. I have no love for them, but that has shit to do with your topic If you had the ability to tune your own computer, you would be better off. The cam would be a good start, since its not really setup for a boosted engine nor is it really a performance cam either. The flow numbers would give cammotion a better idea of what your cam specs should be, but you don't need them to get something better than stock.

THe RSM number is not legit. At .600 lift I haven't seen anything over 240 cfm yet (no valve work done yet though). Granted I haven't tried everything possible but I have done a good deal of research so far. Perhaps with the valve out of the head, but uh...not likely considering the valve seat diameter isn't going to support 620 CFM without compressing the air. That would mean they are giving you a number for the supercharger, which im not sure is what you could really use for the cam anyway.

Very clever of them to make a pulley that only they can make. Well, thats not true, you could have one made as well but its probably not cost effective. Im not sure if you can have the SC polished on the inside to gain anything, or if that SC is a small one or large one in terms of potential flow vs creating heat. Intercooler would be an excellent addition to this system.

[TurboZ24]

Z24SS has the RSM supercharger kit as well as additional tuning. He bought the RSM retuned ECM for his Grand AM and apparently they really screwed up the programming. Their Grand AM kit deletes the MAF, dones some other funky things, deletes the O2 signals, so you don't get any engine codes, etc. He told me his car ran pretty poorly with the retuned ECM, so he had too have it redone.

Quotes ...
"sucks is not the word it was ready to detonate it had knock we checked it out the motor is fine just those guys are dumb they deleted the 02 sensors turned off the check engine light took 2 hours to redo the hole car"
"totally deleted the maf"
"HP is 241 the torque is in the 260 range"
"TurboZ24: how much super boost? 6?"
"Z24ss: 8"

I know he has exhaust, he might have head work, not sure, though.

That's not all that bad, though. 241 wheel HP and 260's for the torque.
For comparison vs turbo 3.1's (wheel ratings)
my was 310.2 HP/290 ft lbs @ 7 psi
Jux's was 229 HP/261.7 ft lbs @ 6 psi

[zofo61]

Got some specs from Cammotion and wanted to throw them out and see what u guys think......as usual dont be shy

In/Ex 209/218

In Lift 489

Ex Lift 542

Lobe Sep 109

1.6 Rocker

Thanks

[SappySE107]

What is coil bind on your valve springs? Might be a bit much on the exhaust. I would think lower lift on the exhaust and more duration would be better, especially since the stock exhaust port is flatlining after .400. Even more ported exhaust is hardly gaining flow after .450. May as well just hold it around there a bit longer rather than opening it up more and putting more stress on the cam lobe and valve spring. Thats just my guess on how that should work.

[zofo61]

THe RSM number is not legit. At .600 lift I haven't seen anything over 240 cfm yet (no valve work done yet though). Granted I haven't tried everything possible but I have done a good deal of research so far. Perhaps with the valve out of the head, but uh...not likely considering the valve seat diameter isn't going to support 620 CFM without compressing the air. That would mean they are giving you a number for the supercharger, which im not sure is what you could really use for the cam anyway.

Hey Chris,
This person is thinking that the head flow number is 620 CFM per cylinder. You must divide 620 CFM by 3. The one cylinder head flows 620 CFM. Remember you have two cylinder heads. So the individual port numbers are 206 CFM per cylinder. Hope that clears things up. If there is anything else you need let me know.

Nelson
RSM Racing Inc

[SappySE107]

What lift? Stock is 198 at .500. You also need the exhaust number. However, max flow or peak lift numbers are also damn near worthless other than marketing. Its the low/mid lift numbers that carry the most significance.

[zofo61]

I thought I put that in the original post...........

In Lift = 489

EX Lift = 542

I think the exhaust is a bit too much......these are the numbers that Cammotion is throwing around ......just getting some feedback......positive feedback........what numbers does your gut tell you would be good for my app based on the numbers given.....Im open to anything that will work.........Cammotion isnt marketing anything ...I inquired as to what they would suggest based on my settup and thats the numbers they throgh into the ring.

Now lets destroy this hypothesis...shall we?

[SappySE107]

Im talking about the head flow numbers, not the cam specs.

[zofo61]

What lift? Stock is 198 at .500. You also need the exhaust number. However, max flow or peak lift numbers are also damn near worthless other than marketing. Its the low/mid lift numbers that carry the most significance.

Something tells me that no matter what numbers I give you ....you'll come up with more needs. Thats ok.......

Lets put it another way.............

Say you have a STOCK 2002 3400 and were able to come up with a CSC and a set of headers. Stock heads have numbers.....yes.....all the numbers you could ever want. Given that is pretty fast now but it is a daily driver and not a garage project......you want to give it just a little more kick...........

WHAT CAM WOULD YOU PUT IN IT ?

There you have it ....a cut and dry senario.........give us an opinion that says something..........you know you want to............commit to a solid concept