Stage II cams?

scupking · Nov 23, 2007

What stage II would not lose much low end torque. Crower stage II seems good but how good are comp XE270s and what spring should I get?

superstang01 · Nov 23, 2007

i am curious about the crower stage 2 cams aswell, i have not really seen any results from them

r3dn3ck · Nov 25, 2007

the crower stage 2 I last saw the specs for was a helluva mild cam. I'd call it a minor change. the 270 is closer to what crower calls a stage 3 cam.

Get yourself a custom grind from comp. It's the same cost and always a better result.

mineralgraygt · Nov 25, 2007

get the blower cam. i have the stage 2 crower blower cam they are 571 lift and 234 234 duration at .50 thats what im running in my car and i love them great cams i also running there valve springs they are good until 600 lift

Night Shifter · Nov 25, 2007

Don't get blower cams unless your plannig on going S/C. You'll end up losing more power since they are made for having a power adder. They will sound good and pull hard but if you want your cams to be sound and performace go with the 270's

TGJ · Nov 25, 2007

Night Shifter said:
Don't get blower cams unless your plannig on going S/C. You'll end up losing more power since they are made for having a power adder. They will sound good and pull hard but if you want your cams to be sound and performace go with the 270's

I am getting tired of constantly correcting this Bull**** theory. One of the best N/A cams out there is the Comp 270, the Crower Stg 2 PI SC cam is almost identical to it with the exception of having more lift. It too works extremely well N/A. I am using the Crower Stg 2 PI SC cam in a N/A car that will never see a SC and am having great success with it. What one company considers a blower cam, another company has a N/A cam that is similar spec'd to it and vice versa. What matters most is the cam specs...

Just to show something here, I am posting the Comp 270 specs and Crower Stg 2 PI SC specs:

Comp 270:
234/238 @ .050", 109/117 113 LSA .550" lift intake and exhaust

Crower Stg 2 PI SC
234/234 @ .050", 110/118 114 LSA .581" lift intake and exhaust

scupking · Nov 25, 2007

TGJ said:
I am getting tired of constantly correcting this Bull**** theory. One of the best N/A cams out there is the Comp 270, the Crower Stg 2 PI SC cam is almost identical to it with the exception of having more lift. It too works extremely well N/A. I am using the Crower Stg 2 PI SC cam in a N/A car that will never see a SC and am having great success with it. What one company considers a blower cam, another company has a N/A cam that is similar spec'd to it and vice versa. What matters most is the cam specs...

Just to show something here, I am posting the Comp 270 specs and Crower Stg 2 PI SC specs:

Comp 270:
234/238 @ .050", 109/117 113 LSA .550" lift intake and exhaust

Crower Stg 2 PI SC
234/234 @ .050", 110/118 114 LSA .581" lift intake and exhaust

Do you have any sound clips? The only other thing I would need are springs right?

2002VertGT · Nov 26, 2007

Just two quick questions:

What are the stock #'s on my 2002 cams?
How much do Comp cams run?

TGJ · Nov 26, 2007

I had clips of my car and can't find them anywhere...

All you need is springs if you have PI heads.

Stock PI cams
200/209 @ .050", 114 LSA, .504" intake .531" exhaust

You can find Comp cams from $400 - $600, depending where you buy them...

scupking · Nov 26, 2007

Is there any piston to valve issues with the 270s?

TGJ · Nov 26, 2007

People had issues with the Comp 270's because they did not install them properly but that goes for any aftermarket cam. There are cases of PTV with VT stg 1, Stg 2 cams which also resulted from improper installation. Degree the cams in and you will be fine...

bakos24 · Nov 26, 2007

Don't mean to jack the thread, but it may help some people out sound wise.

TGJ:
Which cam will be better sound wise. The Comp 270 or Crower Stg 2 PI SC? What I will be looking for it that nice lope sound, noticeable but not extremely aggressive. I am a complete noob with cams

TGJ · Nov 26, 2007

bakos24 said:
Don't mean to jack the thread, but it may help some people out sound wise.

TGJ:
Which cam will be better sound wise. The Comp 270 or Crower Stg 2 PI SC? What I will be looking for it that nice lope sound, noticeable but not extremely aggressive. I am a complete noob with cams

I have heard a few cars with 270's and it's idle is more lopey than my car. That said, my car because it is a 5.0L Big-Bore does make cams more mild, therefore less lopey. I would expect that my cams in a 4.6 would be just as lopey as the 270.

scupking · Nov 26, 2007

How bad will the loss in low end torque be with 270s or Crower stage 2 blower cams?

TGJ · Nov 26, 2007

scupking said:
How bad will the loss in low end torque be with 270s or Crower stage 2 blower cams?

You will want a 3500+ RPM Stall TC if you go with either of these cams.

blkhorse · Nov 26, 2007

n/a cams have more of a lope than a blower cam,because of the lsa. n/a can have lsa in the range of 108 to 112 and blower cams in the 113-115 range. thats why a blower cam with the same duration and lift will have more lowend power. Even Vt say's that their stage 3 blowers make more hp than their stage 2 N/a on a n/a motor

Winters98GT · Nov 26, 2007

Ill second the blower cam opinion. Ive seen quite a few cars perform well at the track with the blower cams and a low gear, NA. Also, DYNO Queens dont always equate to the fastest track car. There is more to a cam than just peek HP.

Always look at the specs of a cam, not the "stage", and ask different manufacturers what they recommend. I wouldnt go with a custom grind on a stock head, stock compression motor unless there is no extra charge and you are confident with the grind. I used the old erson reground cams, the lope was nasty at an idle, but the specs turned out to be wrong. Long story short, get with somebody you trust to set and degree the cams properly if you are not doing the install.

scupking · Nov 26, 2007

I do want to get a blower someday soon (year or so). So then it would probably be best if I went with blower cams. I will talk with Tim at MPH and see what he says.

CobraRed_96_GT · Nov 26, 2007

Winters98GT said:
Ill second the blower cam opinion. Ive seen quite a few cars perform well at the track with the blower cams and a low gear, NA. Also, DYNO Queens dont always equate to the fastest track car. There is more to a cam than just peek HP.

Always look at the specs of a cam, not the "stage", and ask different manufacturers what they recommend. I wouldnt go with a custom grind on a stock head, stock compression motor unless there is no extra charge and you are confident with the grind. I used the old erson reground cams, the lope was nasty at an idle, but the specs turned out to be wrong. Long story short, get with somebody you trust to set and degree the cams properly if you are not doing the install.

on the same note tho, N/A cams seems to perform well on FI cars like hotmustang's

Green&GoldGT · Nov 26, 2007

You should look at the specs on each cam. They are both "stage 2" but Crower's have more lift ( I think .559 intake and .570 exhaust) and less duration. Comp 270s have more duration but both .550 gross lift on the intake and exhaust. More duration makes a choppier idle, but my Crowers have a unique sound. Crowers have less duration to prevent PTV contact. You can't have too much of lift and duration or it will cause PTV contact

Stage II cams?

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