340+hp NA F20c build - S2KI Honda S2000 Forums



340+hp NA F20c build

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Old 05-07-2010, 07:54 AM   #1
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First off I would like to apologize for this thread as the majority of s2000 owners do not convert their beloved vehicles into full out drag cars, let alone naturally aspirated ones at that. A lot of what I have done really wont apply to your daily driven cars, but I thought it would be beneficial to show everyone what CAN be done with the f20c motors.

You can all flame away if you would like to tell me how much I have desicrated the sacred f20c by putting it into a Civic in fwd trim . I like to be different and in an All Motor class filled with K series cars, I chose to stand out and be different, so if you would like to have some words about my choices . . . Have at it lol.

The car is a 95 honda civic coupe with an Inline Pro F2K Kit (F20c to K series transmission making it FWD)

All of the Motor work and design was done by Jeremy Allen @ Inline Pro. All of the tuning duties were taken care of by Randy @ RsTech.

Last year we built a basic motor and went 10.97 @ 126 with our first year campaigning the F2K swap. We learned a lot . This year we tried some completely new things engine wise.

The build for this year consists of :

90mm bore
99mm k24 crank
Inline Pro Rods
CP pistons 14:1cr
Ported head with race VJ by Jeremy Allen
Supertech valves
Custom 2 Lobe Billet cams Designed by InlinePro/Drag Cartel
Toda Cam Gears
Six Sigma Racing (ssr/dtr) 4-1 header
Hayward Performance Intake manifold
Injector Dynamics 1000cc Injectors

Tuned on e85. .

The motor made 339.5hp on a MUSTANG DYNO . . .

This year the rules are different and the car weighs 175lbs heavier then it did last year to meet these rules. On our 6th pass this year we managed an 11.00 @ 125 with this set up. We are still racing on a conservative tune until I learn to drive it haha. The car should go 10.80s as it sits, at the new, heavier race weight.

This was the first time we ever used a set of cams like these so we didnt really know what to expect. We had to cut back the design on the pistons a little just to make sure we safely had enough room. Jeremy is confident that since we now know what to expect with these cams that we could easily get another 10-15hp out of this set up by changing the designs on a few things.
The latest thing in our all motor class is big crank, stroker motors.
So we will soon be designing a big crank motor in search of 370+hp . .

Enough talking and on to the pics - Thanks for taking the time to read. .

- Jake

It would not have come together this year if not for a lot of people. Big thank you to:

Jeremy Allen @ Inline Pro - One of the baddest engine builders around
Randy @ RsTech - One of the smartest and most knowledgable tuners in the industry
The staff @ Inline Pro
Tim and Kristen Grey
Wil @ Exospeed
TonyS @ Skunk2
Rick and Javy @ Import DPS
Jeremy @ Drag Cartel
Nick and Jeff @ Grafx
Miller @ NRG tech
Everyone @ Competition Clutch
CIN Allstars

And most importantly all of my friends, family and loved ones who put up with me during this haha.



The only dyno graph I saved was the uncorrected graph which is 354hp. Sorry. The corrected numbers are 339.5hp/219tq















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Old 05-07-2010, 08:02 AM   #2
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Cool! I don't even understand 1% of what it takes to do these kinds of things with cars, but I love reading about it anyway
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Old 05-07-2010, 08:45 AM   #3
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Hey there, your front tire is low.... just kidding just kidding. That's amazing to see it pushed this far. Good job. How high do mustang dynos typically read or how does it compare to other dynos.
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Old 05-07-2010, 08:55 AM   #4
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Haha I hear that all the time haha.

The mustang dyno tends to read on the lower side when compared to a dyno jet.

Usually around 5-7% lower then a dynojet is what tends to be generally accepted and what I have personally seen as well. . .

Thanks for the kind words guys
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Old 05-07-2010, 09:55 AM   #5
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Nice Car!
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Old 05-07-2010, 10:07 AM   #6
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sick whip. F^%%K K series. F FTW

bet everyone at the events gets a kick outa that setup.
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Old 05-07-2010, 10:24 AM   #7
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very nasty stuff! i love the intake manifold FUNCTION FTMFW!!!!!

hope you crank out that 10.80 keep it up
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Old 05-07-2010, 10:32 AM   #8
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just out of curiosity how much of a difference is there in drivetrain loss when comparing the fwd to rwd

very nice numbers :thumbsup:
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Old 05-07-2010, 10:34 AM   #9
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This is awesome! Seeing your signature, I have wanted to see info on your engine. Vtec killers, nice! How's the idle? Nice work!! And I think the swap is way cool
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Old 05-07-2010, 12:42 PM   #10
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Thank you all.

I am not entirely sure on the exact drivetrain loss in comparison, its probably pretty substantial.

This build is pretty mainstream in the K series world. The power is right on par with similarly built K cars. The one advantage we have is in the head design and we will be continuing to build on what we have already started in that department. Jeremy Allen @ inline pro is a genius when it comes to headwork.


The idle on the 2 lobes is absolutely killer - no pun intended haha. The car sounds ridiculous. Everyone comments on how "tough" it sounds idling.

We should be pushing deep into the 10s by the end of the year once the big crank gets put to use.

You guys might get a laugh out of this. Excuse the cheesey look on my face, this was after my first pass in the car this year.
This is a license plate I had made for the car. I assume everyone here can understand the Double meaning haha. Funny part is that the 2 guys I am standing between own 2 of the fastest K cars in the country haha

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