UK & Ireland S2000 Community Discussions related to the S2000, its ownership and enthusiasm for it in the UK and Ireland. Including FAQs, and technical questions.

Vtec

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Old Apr 8, 2008 | 09:41 AM
  #11  
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It's a compromise between power and economy. The switch is set to

Also remember that it is technically a switch so it will never lose it's on/off nature.
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Old Apr 8, 2008 | 09:44 AM
  #12  
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Cool. I'd like to see the dyno on that because despite the peak power deficit, it probably compares favourably to the S.

I'd much rather have the K20 block in the S for tuning purposes. I don't like the idea of FI and NA mods yield little return for the money
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Old Apr 8, 2008 | 09:52 AM
  #13  
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Originally Posted by s2ook,Apr 8 2008, 05:44 PM
Cool. I'd like to see the dyno on that because despite the peak power deficit, it probably compares favourably to the S.

I'd much rather have the K20 block in the S for tuning purposes. I don't like the idea of FI and NA mods yield little return for the money
The K20 is a budget version of the F20C.

The major thing going for it is the development by aftermarket tuning companies.

The F20C still retains the highest specific output for a reciprocating N/A production engine - 123bhp/litre in JDM guise - and can easily do over 100k miles without a rebuild.

Ferraris/Porsches don't match either statistic.

Best 4-pot ever?

Probably
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Old Apr 8, 2008 | 10:03 AM
  #14  
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In terms of development it's also restrained by the ECU being non-programmable and tuning is a PITA The K20 can easily be tuned to power that the F20C could only dream in NA form. If it was made to the same tolerances as the F20C and with a head that flowed as well, it would be far better than the F20C IMO. Then there's the Frankenstein conversions which can be performed with the K24...

Still for a block that's coming up 10 years old 120+bhp/litre is no mean feat!
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Old Apr 8, 2008 | 10:22 AM
  #15  
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Originally Posted by s2ook,Apr 8 2008, 06:03 PM
In terms of development it's also restrained by the ECU being non-programmable and tuning is a PITA The K20 can easily be tuned to power that the F20C could only dream in NA form.


Surely these K-Pro items transpanted onto F20's do a good job?
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Old Apr 8, 2008 | 10:23 AM
  #16  
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An alternative is to change the gear ratios, VTEC comes in at lower speeds if you do that. Lots of folk have done it so have a search around.
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Old Apr 8, 2008 | 10:37 AM
  #17  
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Yeah, its possible to do that, but you aren't gaining any extra power, and you are losing fuel economy.

Yes, I know it's faster.
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Old Apr 8, 2008 | 11:07 AM
  #18  
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Guys just to expand on this discussion and point it in a similar but useful (for me) direction..

I've done a bit of reading in the past and understand, that if you want to run a car with modifications and you wish to use complete standalone management, it's about the 'best' way of getting the most out of any and all modifications.

I understand omex and emerald are better for na cars, but i'm considering f/i. A friend of mine suggested the motec management but he does drive an evo9 and i know it's also good to get a multitude of opinions.

Can anyone either recommend or point me in the direction of threads with the aftermarket standalone options so i can have a read.

Many thanks.

P.S. I believe Vtec engages at 6,200 rpm, not 6k precisely. A bit anal, but if you're learning the car, it's useful to know.
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Old Apr 8, 2008 | 11:20 AM
  #19  
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Originally Posted by Hypersonik,Apr 8 2008, 06:37 PM
Yeah, its possible to do that, but you aren't gaining any extra power, and you are losing fuel economy.

Yes, I know it's faster.
Whats the problem then?

C7 do a search on AEM and Hondata.
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Old Apr 8, 2008 | 11:21 AM
  #20  
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Both my ctrs had a more pronounced "kick" when vrtec engaged, more so the slightly modified one although they were both louder than the S2k so that may have aided the feeling.
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