60% or 45% Over???

B

bml2200

Member
Oct 16, 2008
256
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IL
I did 60% overs with a stock cp3 and a 71.5 Cheetah. Nick tuned out almost all the smoke at idle and for normal driving it would barely, if ever, haze. Rolling into the throttle would black out multiple lanes though.
 
LarryJewell

LarryJewell

Back with his honey :)
Jan 21, 2007
10,152
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36
58
San Angelo
bml2200 said:
I did 60% overs with a stock cp3 and a 71.5 Cheetah. Nick tuned out almost all the smoke at idle and for normal driving it would barely, if ever, haze. Rolling into the throttle would black out multiple lanes though.
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Note to self, even with my stock injectors I should make sure the cummins next to me in traffic that keeps puffing smoke at me has his window rolled up when I finally decide to return the favor :spit:
 
gmduramax

gmduramax

Shits broke
Jun 12, 2008
4,072
248
63
Nor cal
Just my opinion.
450-550 30% over
550-700 45% over
If you plan on being over 700 I would go with 100% overs because if your at 700rw it isn't enough :D
 
SteveFord

SteveFord

What's Next?
May 8, 2008
1,317
0
36
Iowa
I got 30% overs and I can't complain. Basically ask yourself this question. What are you REALLY going to use your truck for most of the time? If your motor is built then most likely your going to use the truck to compete. Then go as big as you can. Myself the most this engine will produce is what these twins will give me. Mine is used for work still and a daily driver so thats why I went the route I did. Lowered my pulse alot and timing is backed down too. If I hurt this motor than a better rod will be put in but my injectors will remain the same. Thats the plan anyways:D
 
S

S Phinney

Active member
Aug 15, 2008
4,008
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28
Quncy, Fl
Your cheaper sending yours off but unless you have those tested before the mods you might be wasting your money.

Sent from my SCH-I500 using Tapatalk
 
Chevy1925

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,667
5,813
113
Phoenix Az
SteveFord said:
I got 30% overs and I can't complain. Basically ask yourself this question. What are you REALLY going to use your truck for most of the time? If your motor is built then most likely your going to use the truck to compete. Then go as big as you can. Myself the most this engine will produce is what these twins will give me. Mine is used for work still and a daily driver so thats why I went the route I did. Lowered my pulse alot and timing is backed down too. If I hurt this motor than a better rod will be put in but my injectors will remain the same. Thats the plan anyways:D
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x2. Im building my motor sence it blew (well its more parked waitin on funds lol) and im goin with 45% overs. i wont be competeing with this truck but will be using it for towing, long distance drives, and for crusing/hot rodding around town. 650-700 max is all i want. it will put me in the 12s for this big limo and ill be plenty happy with that :D. I really dont wanna give up these twins yet for something bigger only because of how well they pulled a trailer and better than stock spool up.
 
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