Who has the most HP here for second gen?
02-15-2005, 10:26 PM
#41
Drifting
if its only meant to smooth out the power band and kick vtec earlier.. than why not just stick with the pulleys.. UR pulleys gives you an increase throughout the whole powerband + gets you to higher rpms (VTEC) alot quicker...
02-15-2005, 11:49 PM
#43
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they increase the entire powerband maybee .. but have you ever scene how the stock powerband looks on paper ? or even aftermarket
it peaks and then stutters a bit
it peaks and then stutters a bit
.
02-16-2005, 01:20 PM
#47
@ slide or die @
^^yes
VAFC II corrects every 250rpm i believe and IT DOES gain hp not by giving it power, but by allowing the engine to develop more power up top. I talked about this when i got my vafc wideband tuned. Notice how our engines keep making power after redline (dyno chart from member a while back).
it definetly helps cut times and the ONLY drawback is fuel consumption IF you get into vtec range a lot....mine's set at 4000rpm and i barely ever get to 3500
Very Tall Engine Cooling
VAFC II corrects every 250rpm i believe and IT DOES gain hp not by giving it power, but by allowing the engine to develop more power up top. I talked about this when i got my vafc wideband tuned. Notice how our engines keep making power after redline (dyno chart from member a while back).
it definetly helps cut times and the ONLY drawback is fuel consumption IF you get into vtec range a lot....mine's set at 4000rpm and i barely ever get to 3500
Very Tall Engine Cooling
02-16-2005, 01:24 PM
#48
@ slide or die @
Originally Posted by El pana/TL32
Can we DYNO tune our cars w/o a VAFC?
type "dyno" on google/images and you'll see what its all about
VAFC II corrects every 250rpm i believe and IT DOES gain hp not by giving it power, but by allowing the engine to develop more power up top. I talked about this when i got my vafc wideband tuned. Notice how our engines keep making power after redline (dyno chart from member a while back).
it definetly helps cut times and the ONLY drawback is fuel consumption IF you get into vtec range a lot....mine's set at 4000rpm and i barely ever get to 3500
Very Tall Engine Cooling
02-16-2005, 02:14 PM
#49
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[QUOTE=etxxz]yes...guess you've never seen a dynoturbine.
type "dyno" on google/images and you'll see what its all about
Yes, I have seen a dynoturbine, and have seen car's dynoed before, but was not aware that w/o a vafc on our cars, we could tune our ECU for better performance. I was under the impression that the dyno will only messure how much whp and torque a vehicle produces.
Thanks!
type "dyno" on google/images and you'll see what its all about
Yes, I have seen a dynoturbine, and have seen car's dynoed before, but was not aware that w/o a vafc on our cars, we could tune our ECU for better performance. I was under the impression that the dyno will only messure how much whp and torque a vehicle produces.
Thanks!
02-16-2005, 02:22 PM
#50
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Originally Posted by Pure Adrenaline
So you're saying that a K&N filter, headers, and Unichip only yielded an extra 25 hp at the crank?
No way. What kind of a dynomometer was this? I don't think the shop accounted for the difference factor among dynos. For instance, my buddy put down 360 rwhp on his SR20DET-swapped 240SX on an axle dyno (forgot the brand). On a Dynojet, it put down 380 rwhp.
No way. What kind of a dynomometer was this? I don't think the shop accounted for the difference factor among dynos. For instance, my buddy put down 360 rwhp on his SR20DET-swapped 240SX on an axle dyno (forgot the brand). On a Dynojet, it put down 380 rwhp.
02-16-2005, 02:27 PM
#51
Boomer SOONER
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[QUOTE=El pana/TL32]
you were right, you need a programmer or something to tune the computer...just getting on a dyno wont do anything but tell you what you can work with. Now when you add mods (I,H,E,or P) the ECU will reprogram itself to get the most out of the mods, but with the VAFC you can fine tune the whole powerband to give good results - if done properly
Originally Posted by etxxz
yes...guess you've never seen a dynoturbine.
type "dyno" on google/images and you'll see what its all about
Yes, I have seen a dynoturbine, and have seen car's dynoed before, but was not aware that w/o a vafc on our cars, we could tune our ECU for better performance. I was under the impression that the dyno will only messure how much whp and torque a vehicle produces.
Thanks!
type "dyno" on google/images and you'll see what its all about
Yes, I have seen a dynoturbine, and have seen car's dynoed before, but was not aware that w/o a vafc on our cars, we could tune our ECU for better performance. I was under the impression that the dyno will only messure how much whp and torque a vehicle produces.
Thanks!
02-16-2005, 02:50 PM
#52
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Originally Posted by ou sig
you were right, you need a programmer or something to tune the computer...just getting on a dyno wont do anything but tell you what you can work with. Now when you add mods (I,H,E,or P) the ECU will reprogram itself to get the most out of the mods, but with the VAFC you can fine tune the whole powerband to give good results - if done properly
Thanks!
02-16-2005, 03:07 PM
#53
lover and fighter
Originally Posted by El pana/TL32
That was exactly my point! thanks for the clarification! You see I have all those modes already (CT Headers, CT icebox, iridiums, tb spacer, custom b-pipe) with the exception of the VAFC, is it really worth it? Considering the potential lack of fuel efficency $$$ by adding this comoponent.
Thanks!
Thanks!
02-16-2005, 04:02 PM
#54
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Originally Posted by r10apple
The largest gains I have seen with a properly tuned vafc were about 12hp/15tq. This was done on a car with i/h/e. That being said, it was on the rollers for over 3 hours and at $150 an hour for the tuning on top of the $$$ paid for the vafc itself, was quite a costly enterprise. It did lay just short of 230hp on a warm day in Florida when it was done. Hope that helps...
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