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144.5 miles per hour in the quarter mile driving a Honda Civic street car. Simply wow. Consistenly running 140+ mph passes in ten and a half seconds. And - going for nines! A 150 mph pass has just happened so that single digit pass is getting closer and closer.

Paulo has owned this 1998 Honda Civic for about three years, but he has worked on it for years. It has had many faces during its life as it has been everything from a show car to a drag strip monster. From 2000 to 2005, it was running a B swap and painted green. At the Mission Drag Strip it was known, for obvious reasons, as the 'Green Civic'. Then at the economic downturn around 2007, the car was parted out and left sitting outside as a bare shell. A new owner got it, and it was painted Type R Championship White. Paulo was wrenching on it throughout this time, and a K swap was installed. In 2014 the car was in Paulo's hands. This is when it started to get serious.

 

Carbon Fibre panels were added to the front bumper in July to direct air flow around the obviously large air scoops in the front bumper. With air flow directed and forced through the intercooler, the expectation is that the car will be cooler.

 

The engine in the car is a K24A that originally was found in an Acura TSX. The engine was rebuilt using CP Pistons and BC Rods. This past spring Paulo pulled the rods and pistons to inspect them after a full season of use. They were pristine.

 

It has a stock head with stock valves. The head has not been ported and the cams are stock. AES Auto installed Supertech valve retainers and springs. The car runs a stock RBC manifold that was originally on a CSX Type S. A filter is attached to the turbo for street running. On the strip, a snorkel is fitted to the scoop on the hood - testing shows that a larger scoop is required!

 

Bosch 2200cc injectors are installed in a Golden Eagle fuel rail and fuel is pushed through -8 fuel line feed/-6 return via a Walbro 450lph E85 single pump and an AEM regulator.
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Comments
ginsu
ginsulink
Wednesday, August 30, 2017 5:40 PM
Man, get some heatshielding on the manifold and turbo, it's probably loosing a ton of power right there.

Is that an LCON traction bar? I had one of those. They are so awesome. If you want, you can remove the rear half of the front lower wishbone too, it's essentially unused when you install the LCON bar. That way you can drop 8-10 lbs of unsprung weight. Although, you have to find an alternate way of mounting the sway bar, if you choose to keep it.
ginsu
ginsulink
Wednesday, August 30, 2017 5:47 PM
I never understand drag race builds. It's like half a build. They weld in a cage, but it does nothing to stiffen the car.

And, why keep all that weight in the car? It makes no sense. Pare it down. Every pound is being used against you.

People spend so much money on power modifications, and trannys and shifters, and yet they won't do the mods that are completely free?

Removing weight improves acceleration, deceleration and lateral grip. All for free.
ginsu
ginsulink
Wednesday, August 30, 2017 5:58 PM
Oh, one last thing. You should get a front splitter, and a vented hood. Both will improve your top speed. You may even want to vent your fenders, those 15x10 wheels at high speed will create seriously high pressure in the wheel wells. All that high pressure is what is preventing you from getting higher speeds. The dynamic pressure at 150mph is really incredible. Also, speed tape would help here.

Remember that Power is proportional to the CUBE of velocity.

P = ½ρCAv3

"Thus, if drag is proportional to the square of speed, then the power needed to overcome that drag is proportional to the cube of speed (P ∝ v3). You want to ride your bicycle twice as fast, you'll have to be eight times more powerful. This is why motorcycles are so much faster than bicycles.

Power expended against drag is the biggest impediment to moving freely for both bicycles and motorcycles. Humans can do sustained physical work like cycling at the rate of about a tenth of a horsepower. Motorcycles have engines that are on the order of 100 horsepower. (Sorry for the American units.) That makes a motorcycle about one thousand times more powerful than a human on a bicycle. As a result they can go about ten times faster, since 1,000 = 103."
nissannx
nissannxlink
Wednesday, August 30, 2017 7:22 PM
Great points, Ginsu. Almost everything mentioned Paulo has considered and we've discussed. I'm sure with time more of what you're mentioning will be happening! Keep the thoughts coming! Frank
ginsu
ginsulink
Wednesday, August 30, 2017 9:22 PM
Thanks for the feedback. Speed is not rocket science, but it does seem like people like to keep secrets. If you invest a bunch of money developing a product that's one thing, but most of my suggestions are basically DIY mods.
SM_Clay72
SM_Clay72link
Thursday, August 31, 2017 8:32 AM
Haha slow down ginsu! Street and strip means there are going to be compromises for practicality and aesthetics, not to mention cost and time.

I am with you on the cage aspect though. I have never seen a drag racing cage in a production chassis that I liked or even thought looked particularly safe.

I'll be buzzing down that strip on the roadrace course this weekend in my AE86.
nissannx
nissannxlink
Thursday, August 31, 2017 4:40 PM
SM - what colour is your car? What number?
I will be there for a bit but not on track.
SM_Clay72
SM_Clay72link
Friday, September 01, 2017 6:15 AM
White #6. I'll be in the novice closed wheel class because I let my full license lapse int eh last couple years and have to prove I am not a dummy again.
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