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Old Dec 8, 2002 | 07:05 PM
  #21  
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MrChad
THE RED 6th GEN Coupe
 
Joined: Jun 2002
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From: Chicagoland, IL
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Originally posted by v4lu3s
how will you get that much power without a lopey cam though?
Well do you mean 200hp flywheel? B/c that would = about 170hp at the wheels. Which as I've stated before seems possable for an F-given the rest of the honda family's patterns. (I aiming for 170-175hp F22/23 [6500rpm] at the wheels all N/A)

As I said before until the DOHC vtec switch over D's and B's are nearly identical--the same holds true for F and H.

D16 modified with 11:1comp-and a fabulas port job is pulling stock B16A2 power numbers,{and a better curve}. (Keep in mind this is with the D's longer stroke and lower tranny gearing.) So H22's put about 175hp max at the wheels--given this analagy--I graphed stock F and H and used a conservative curve extrapolation for a modified F series. It would appear with higher compression and some head work a 170hp dyno number at the wheels could be acheived at the stock 6700 rpm fuel cut out point. In addition the whole curve takes a slight shift up over the H series (which = F23 all the way until 5000vtec jump). I.E. it would appear an F-series prepped to handle Higher 11:1 compression and good head work could achieve some nice H22 like numbers all on stock cam.... If I fall a little short up top that's still okay b/c the extra shift in the curve down low would compensate. This basically is a great recipe for a street motor--make power in the middle were you use it... well that's the plan anyway. Until this point all data has been based on using thoery of other honda engines and comparing the % gianed per mod. I hope to next see what my Desktop dyno program tells me if I could ever get the flows guessed correctly currently I can't recreate the stock F23 or H22 curves--until that happens I can't predict and mod gains with any accuracy.

Its hard to state what mods will gain what b/c know one to date has posted any modified F-series info. From what I've seen so far the F has as much if not more potential then a D-series and the D can make some really good numbers if given the chance.
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