Sudbury C5's F1C dyno results
08-18-2008, 05:17 PM
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Sudbury C5's F1C dyno results Here is the before and after of Ron's Procharger F1C and a CDNPERF 402 build.
I was honestly hoping for more but when I sat down and crunched the number for the blower RPM I quickly realized that I have alot more RPM to go.
Good thing is Ron is a just a pulley swap away from another 50-80 horse, and with our dyno reading on the low side-that's a good thing.
Car on the street has such a linear feal to the power-the front end literally lifts when you roll into it! Cars like this really make me want to put my six-speed back in!
I was honestly hoping for more but when I sat down and crunched the number for the blower RPM I quickly realized that I have alot more RPM to go.
Good thing is Ron is a just a pulley swap away from another 50-80 horse, and with our dyno reading on the low side-that's a good thing.
Car on the street has such a linear feal to the power-the front end literally lifts when you roll into it! Cars like this really make me want to put my six-speed back in!
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08-18-2008, 09:31 PM
#10
I dont pick up much at all after 70K with the F1A, at least not in this weather anyhow.
Dang! You have a 7.5" and a 4" and are seeing 16psi. I have a 8" crank and a 2.95" making only 17psi.
08-18-2008, 09:34 PM
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Pump gas and meth on a fresh motor. I know when I had an F1C last year that it likes to be spun.
08-18-2008, 09:37 PM
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The intercooler on this car only flows 1250 cfm as well. It is for sure a restriction. On Ontariovette's 427 F1R, he flogged it on the road course at Mosport and the IAT temps only went up to 100 degrees.
08-18-2008, 10:00 PM
#13
I dont think this IC is a restriction, but it certainly isnt the most efficient thing on earth, the boost goes up but so does the heat when I pulley it up. I had a pretty good sized Bell 4" end tank A2A (supposedly rated at 2000hp) on here a while back and it didnt make any difference as far as temps or PSI at the dragstrip. But I still used the 3" tubing on it. I really need a 4" tube A2W setup to take full advantage of this F1A (or anything larger) I think.
Thats why I was curious to se what Arun would get with the F1C, I'd like to see it cranked up on race gas and see what it would do with a similar induction to what I have to see if its even worth bolting a bigger head unit on mine..
08-18-2008, 10:30 PM
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Hopefully this can shed some light kp.
Run # 10 is a F1A 8/4 @ 75 600 rpm, locked auto
Run # 17 is a F1R 8/4.25 @ 71 000 rpm, belt started to slip, locked auto
Run # 7 is a F1C 7.5/4 @ 65 000 rpm, stick
Both are 402's, AFR 225's, LS6 intake
I will bet the F1C will offer a fatter curve if spun alot harder.
Run # 10 is a F1A 8/4 @ 75 600 rpm, locked auto
Run # 17 is a F1R 8/4.25 @ 71 000 rpm, belt started to slip, locked auto
Run # 7 is a F1C 7.5/4 @ 65 000 rpm, stick
Both are 402's, AFR 225's, LS6 intake
I will bet the F1C will offer a fatter curve if spun alot harder.
08-18-2008, 10:44 PM
#15
wow, I would have thought the F1R would do a little better than that. Even though you can tell it was heading up pretty well when the belt started slipping the lower rpm power is a little disappointing.
But if the IC/pipes and intake arent up to the task they act as a pretty good power regulator.
I guess the F1A isnt such a bad little head unit, my wife always says I'm a good guesser
But if the IC/pipes and intake arent up to the task they act as a pretty good power regulator.
I guess the F1A isnt such a bad little head unit, my wife always says I'm a good guesser
08-18-2008, 10:53 PM
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wow, I would have thought the F1R would do a little better than that. Even though you can tell it was heading up pretty well when the belt started slipping the lower rpm power is a little disappointing.
But if the IC/pipes and intake arent up to the task they act as a pretty good power regulator.
I guess the F1A isnt such a bad little head unit, my wife always says I'm a good guesser
But if the IC/pipes and intake arent up to the task they act as a pretty good power regulator.
I guess the F1A isnt such a bad little head unit, my wife always says I'm a good guesser
When the customer get's bored of the 800 rwhp-we'll turn up the F1C.
As a note, I'm doing 10 ribs on all the F1C's and R's-so far no slip. But this winter I will be getting some 12 rib's fabbed up as a 12 rib belt is easier to find than a 10 rib.
08-19-2008, 05:14 AM
#18
Looks good Arun! 
We have two builds going with F-1C blowers. Even though the F-1C and the F-1R are both the same price, I went with the F-1C on both of these Corvettes as they're less prone to belt slippage than the F-1R. Bob
We have two builds going with F-1C blowers. Even though the F-1C and the F-1R are both the same price, I went with the F-1C on both of these Corvettes as they're less prone to belt slippage than the F-1R. Bob
08-19-2008, 09:38 AM
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The F-1R is best suited on BBC and thats about it. The F-1C is a far better design and although flows a touch less air will return a better number and cooler air in the long run.
