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cams

  • Thread starter Thread starter ls1beater4eva
  • Start date Start date Mar 26, 2008

ls1beater4eva

New Member
May 13, 2005
334
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0
mooresville
Mar 26, 2008
#1
  • Mar 26, 2008
  • #1
ok well i am doing some research on this a friend of mine has a 04 gt 5spd 355 gears, well we are talking about putting cams in his car he has just a tbody headers and plenum, he is wanting to put some stage 3 crowers in with there valvesprings and a 125 shot does anybody know about what kind of hp this should make?
 

Green&GoldGT

Member
Aug 1, 2005
302
0
17
Virginia
Mar 26, 2008
#2
  • Mar 26, 2008
  • #2
That is alot of cam for a stock engine. Low end power will suffer alot and there is more than likely going to be piston to valve issues. Big cams are pointless if the heads can't flow to match the cam. 3.55 gear is way too low for even a "stage 2" cam. Other mods are needed to support cams like better flowing intake and a dyno tune is required.

Go with cams that will benefit the engine and not big cams that will kill low end power for a few more hp up top. Hope this helps.
 

chrissaleen

Founding Member
Jan 13, 2002
77
0
7
Myrtle Beach, SC
Mar 26, 2008
#3
  • Mar 26, 2008
  • #3
Green&GoldGT said:
That is alot of cam for a stock engine. Low end power will suffer alot and there is more than likely going to be piston to valve issues. Big cams are pointless if the heads can't flow to match the cam. 3.55 gear is way too low for even a "stage 2" cam. Other mods are needed to support cams like better flowing intake and a dyno tune is required.

Go with cams that will benefit the engine and not big cams that will kill low end power for a few more hp up top. Hope this helps.
Click to expand...

+1!!
 
R

rugster

New Member
Aug 31, 2004
156
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0
Mar 27, 2008
#4
  • Mar 27, 2008
  • #4
gonna need at least a 4.10 to pull those cams into the powerband.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Mar 27, 2008
#5
  • Mar 27, 2008
  • #5
stage 3 crowers are like stage 2.5 comps or VT's. What's with all the stage II/III cam threads where people just through them on on a whim?
 

Green&GoldGT

Member
Aug 1, 2005
302
0
17
Virginia
Mar 27, 2008
#6
  • Mar 27, 2008
  • #6
crower stage 3's are .590 gross lift intake and .601 gross lift exhaust plus added duration. That's alot of cam in my opinion, and the "supercharged stage 3" is even bigger. Compare those to Cushman's and you will be surprised. Most modular experts will tell you bigger is not always better when it comes to the 2v modular.
 

Mustang92

SN's #1 1%er
Jun 6, 2001
6,467
2
79
South Florida
Mar 27, 2008
#7
  • Mar 27, 2008
  • #7
CobraRed_96_GT said:
stage 3 crowers are like stage 2.5 comps or VT's. What's with all the stage II/III cam threads where people just through them on on a whim?
Click to expand...

Maybe they have been reading a lot of 4v threads. It seems pretty common with the 4v guys to throw in a set of stage 3 cams and their stock or lightly modified engines pick up good power from them. However on a 2v GT with stock heads a stage 3 cam is just wasting money. Stage 2 is more than enough.

Bill
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Mar 27, 2008
#8
  • Mar 27, 2008
  • #8
Mustang92 said:
Maybe they have been reading a lot of 4v threads. It seems pretty common with the 4v guys to throw in a set of stage 3 cams and their stock or lightly modified engines pick up good power from them. However on a 2v GT with stock heads a stage 3 cam is just wasting money. Stage 2 is more than enough.

Bill
Click to expand...

Agreed
 
S

Smokeurhonda

New Member
May 1, 2003
457
0
0
Maryland
Mar 27, 2008
#9
  • Mar 27, 2008
  • #9
Mustang92 said:
Maybe they have been reading a lot of 4v threads. It seems pretty common with the 4v guys to throw in a set of stage 3 cams and their stock or lightly modified engines pick up good power from them. However on a 2v GT with stock heads a stage 3 cam is just wasting money. Stage 2 is more than enough.

Bill
Click to expand...



Tell your buddy to stick with stage 2's and get some gear in the car.
 
B

Black_GT_02

New Member
Mar 23, 2008
1
0
0
Ohio
Mar 27, 2008
#10
  • Mar 27, 2008
  • #10
Stage 1 and you wont have to worry about anything else
 
J

Jim@CMS

New Member
Jan 5, 2008
23
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0
Mar 28, 2008
#11
  • Mar 28, 2008
  • #11
That cam is too big unless you plan on alot more mods down the road. Tone it down in cam choice is my opinion. In camshafts, sometimes less is more. It's all about area under the curve and useable RPM.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Mar 28, 2008
#12
  • Mar 28, 2008
  • #12
Jim@CMS said:
That cam is too big unless you plan on alot more mods down the road. Tone it down in cam choice is my opinion. In camshafts, sometimes less is more. It's all about area under the curve and useable RPM.
Click to expand...

but III is more than II, it must be best for my set-up!
 
S

Smokeurhonda

New Member
May 1, 2003
457
0
0
Maryland
Mar 29, 2008
#13
  • Mar 29, 2008
  • #13
CobraRed_96_GT said:
but III is more than II, it must be best for my set-up!
Click to expand...

 

SonicStangGT

Active Member
Mar 18, 2008
146
2
28
King, North Carolina
Mar 30, 2008
#14
  • Mar 30, 2008
  • #14
Yeah, there right. I went out and bought comp stage 3's and what a mess. I have piston to valve issues because of the new duration and lift. Know my motor is out and having to port heads, flycut pistons and put back in because I went to big. More money than I wanted to spend. I bought the 278's for the rough idle, not knowing what I was in for. So if hes not wanting to go inside, go with stage 1 or 2s. Also needs 4.10's, my opinion.
 

mrvax

Stay thirsty my friends
Founding Member
Nov 29, 1999
5,225
3
79
SN Moderator: Orlando, Fl.
Mar 30, 2008
#15
  • Mar 30, 2008
  • #15
I agree with those who said the Stage II's would probably be the best bet. I cannot stress enough how important it is to get the rear end gears changed to match the cams type you want to use. You really should get the 4.10's. It will be worth every penny. In fact, if you have to make a decision between gears and cams, I'd go with the gears first.
 

CobraRed_96_GT

Active Member
May 20, 2006
1,421
4
39
UCSD/La Jolla
Mar 30, 2008
#16
  • Mar 30, 2008
  • #16
even with stage II's stock heads and intake manifold don't really allow them to breath up top, and you lose more low end tq. But it's still a great option, especially over stage III's
 

scupking

Active Member
Sep 18, 2005
1,186
1
36
Enfield, CT
Mar 30, 2008
#17
  • Mar 30, 2008
  • #17
Get stage ones or custom blower cams from MPH. I heard they are like a stage 1.5.
 
B

blueblazes

New Member
Jan 11, 2008
76
0
0
Mar 31, 2008
#18
  • Mar 31, 2008
  • #18
give this guy a ring www.crpautoandfab.com hes a big modular guy and can get you some custom ground cams for good prices and does installs and all. Hes done quite a few and gets some damn good power out of 2v gt's.
 
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