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That’s exciting that you made that much power, hopefully I make 850....I would think it should with the build I’m doing. What drive ratio are you running your blower to get 8lbs, and what rpm did you get peak power with the 741 cam? |
Originally Posted by Daytona25
(Post 4676685)
That’s exciting that you made that much power, hopefully I make 850....I would think it should with the build I’m doing. What drive ratio are you running your blower to get 8lbs, and what rpm did you get peak power with the 741 cam? i haven't run it with the pulley swap. so im not exactly sure on boost but on the dyno it was a 55 lower 52 upper and i got a peak of 4.2psi. now at 55 lower 48 upper im hopping that gets me in the 7/8psi range |
Originally Posted by Daytona25
(Post 4676685)
That’s exciting that you made that much power, hopefully I make 850....I would think it should with the build I’m doing. What drive ratio are you running your blower to get 8lbs, and what rpm did you get peak power with the 741 cam? |
That’s a big jump, won’t you have to retune for that?? |
Hogie roll so with a blower motor more cam just gets the desired power earlier?? |
Originally Posted by LTZCrew
(Post 4676792)
peak power came in at 5900rpms, max trq at 4700rpms
i haven't run it with the pulley swap. so im not exactly sure on boost but on the dyno it was a 55 lower 52 upper and i got a peak of 4.2psi. now at 55 lower 48 upper im hopping that gets me in the 7/8psi range |
Mild thunder I was kinda wondering the 4lbs with 5% overdrive too....figured it would have done better than that?? I plan to start on the dyno a touch overdriven and have pulleys to go up to 10% over depending on how much power I get and or boost it makes!?
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Originally Posted by MILD THUNDER
(Post 4676853)
Overdriven 8-71 on that setup and only made 4lbs? Id say either the blower is worn, or your throttle bodies are killing you.
im thinking its a combo of the throttle bodies and the low compression 7.5 maybe 7.8:1.. not letting it really breath a ton. i think if Daytona25 has a point of compression on me he should do it "easy". |
Originally Posted by LTZCrew
(Post 4676878)
brand new blower so i hope not
im thinking its a combo of the throttle bodies and the low compression 7.5 maybe 7.8:1.. not letting it really breath a ton. i think if Daytona25 has a point of compression on me he should do it "easy". |
Originally Posted by MILD THUNDER
(Post 4676959)
What size throttle bodies are they?
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