S2000 Engine Management Engine management topics, map and advice.

Mr/Ms. Hondata....really

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Old Feb 12, 2012 | 05:19 PM
  #11  
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Originally Posted by DFWs2k
Whoo hoo, I make 600 crank hp

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i guess so, according to gernby with a 20% loss. yep yep also edited for you
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Old Feb 12, 2012 | 07:36 PM
  #12  
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Thank you all for feedback and insight into your current and also
previous setup "experiences"!

I think that this is obviously "subjective" and also a bit
"relative" to how you plan to use your S.

I was hoping for a slam-dunk for the gears..but all I got
was kinda a Jeremy Lin jump shot for tuning.

Why I would lean towards gearing is that I LOVE the car
stock..well?... love with conditions.
I don't like what goes on below 4K..but I do love the car
everywhere else.
When describing this car to people..I tell them it's spectacular
from 45 to 145...but below 45 isn't much.
Too bad..I spend 80% of my time at 45 or less and i think gears would
address this problem.
Something else I like about this car is the free-revving..where to me
if using FI or tuning I think it makes the car into just another VW turbo
or 6 cylinder(name a car..any car) out there running around!
I like the stock form..in a 30mph zone downshifting into 2nd and
revving up to 35 at 5Kplus rpms!
The noise it makes..to me..kinda Ferrari like!

I think the gears would lket me keep the free revving ability of
this car while enhancing low-end..of course for my AP2 I might have
to go 4.56.
But..I do love the car stock..I don't race/autocross or track
and to me it's plenty fast..just think of the nice improvement
in off-the-line 4.44 or 4.56 would give me..nt "night-and-day"
I understand..but I think it would definetly be noticeable and
give me just the low-end punch in any gear I'm seeking.
ps..gonna test drive an '07 red Nismo in Daytona tomorrow...
now thats torque!
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Old Feb 12, 2012 | 08:23 PM
  #13  
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well, sorry to tell you this but 4.56 is no more. i would love a set but oh well. with my tuned car and supporting mods, my vtec is at 3600 and boy is that fun. but i see what you mean and i totally agree with you. in the car isn't in vtec, i am glad i have gears to just punch it around town in the lower rpms without going into vtec. in that case the gears are fine. there is a combo that could get you 4.61ish gearing but there is nothing that can get you 4.56. if you feel that the stock power is enough for you and you just want to have some fun around town driving and hate the lack of low end torque, then gears would be for you. with all my mods and flashpro, the bottom rpms still felt sluggish. and didnt really do the trick. gears solved that for me. i think 4.44 is the best choice for me but a compromise. good enough for around town action and stop and go but still livable at freeway speeds. it doesnt give you the kick of 4.77 but it doesn't make your car scream going down the freeway.

i got the flashpro, because i wasn't happy about the power i was making, it wasn't enough.

also, i highly disagree that the car is fun at 125+ mph. been there, done that and i hate it. first off, the car just screams so loud. its not like a c55 amg, so smooth and quiet at all speeds, up until 155. second, the rear end has lift at those speeds. i now have a diffuser but haven't tested it yet. third, braking is scary as sh*t!!!!! rear lift plus braking!?
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Old Feb 13, 2012 | 07:30 AM
  #14  
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Just remember that gearing changes don't "add" performance. They just move it. When you go from a 4.10 ratio to 4.44, then you are simply giving up a LOT of performance between 34.5 - 37.8 MPH in order to have better performance from 0 to 34.5. You are also giving up a LOT of performance from 53.5 -57.9 in order to have slightly better performance betwwen 37.8 - 53.5. You are also giving up a LOT of performance 73.8 - 79.9 in order to have slightly better performance from 53.5 - 73.8. So if you do the math, the only way you can be sure that a 4.44 equiped car will "beat" a 4.10 equipped car is if you are drag racing from a stop. If you drag race from a 25 MPH roll, the stock geared car has a good chance of winning. So gear swaps should not be considered "performance adders" at all. They are just performance changers.

However, a few choice bolt-ons and a custom FlashPro tune definitely is a performance adder! There are no performance trade-offs, just better performance, especially where it's needed the most ... the midrange.

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Old Feb 13, 2012 | 07:32 AM
  #15  
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Originally Posted by ans2k
gernby, a couple of comments to your post. first off, how does 4.10 rob power?? never heard that before just wanted to know. and second, 20% does sound right. 240ho=200whp.
It's not that 4.10's rob power, it's that ALL gearing robs power. A 1:1 ratio has the smallest power reduction, and the further you get from that, the more power you loose.
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Old Feb 13, 2012 | 09:10 AM
  #16  
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Originally Posted by gernby
Now that I have an AP2 with a great midrange, I have been considering swapping my final drive with a numerically lower ratio, so that I can achieve higher speeds in each gear. I believe this would improve my performance while autocrossing an tracking.
Amen to that. I've never understood all the appeal of even shorter gearing on the s2k, especially for the ap2's. Perhaps the ap1's are anemic and the gearing might help some, but the ap2 gears are plenty short enough imo. Moving to a slightly taller FD would also allow for more pleasant cruising speeds on the highway, without having to spin the engine so high.
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Old Feb 13, 2012 | 10:02 AM
  #17  
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Originally Posted by ans2k
with all my mods and flashpro, the bottom rpms still felt sluggish. and didnt really do the trick. gears solved that for me. i th
Exactly!
that would drive me crazy..invest all the time and cash and hassle
only to have her lackluster until you reach 4K.

gernby..all due respect..I love reading all your research/experiments/
and dyno readouts but you and I have drastically different goals
for our Hondas!

I'm not worried about having more speed in a certain gear...or
being beaten in a "rolling-start" drag race@25mph!! wtheck?
I'm happy with just a bit more punch..a bit more gear-response..
if someone if some piece of crap(which everything next to me is!)
happens to nose ahead of me on International Speedway Bvld. so
be it..if there was $100K on the line my attitude would be different lol
You're into max results/performance...2 letters for you..FI!
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Old Feb 13, 2012 | 12:27 PM
  #18  
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I should mention that with the flashpro I raised the redline to 8500. That brings the speed in each close to stock.
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Old Feb 13, 2012 | 01:26 PM
  #19  
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Do you want some brand new 4.44 gears?

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Old Feb 13, 2012 | 01:44 PM
  #20  
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already on my second set. lol
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