Turbocharged Headers Equipped SMART car.. a Vicious Screamin' Cow

[smart fortimo]

Larry... having too much fun! I like it.

I'm dreaming of the day I can have two smarts-- one for show (ED/EV) and one for go (turbo).


Cheers,
Timo

[LittoDeviL]

Timo,

And one day you will have two smarts! I've been thinking of an electric smart as well.. it'll cure all the questions I get "is it electric?" I can finally say "YES IT IS!!" hahaha... pack the trunk full of batteries ;).. .ever lasting laptop haha..

Larry

[BigWarpGuy]

Originally Posted by LittoDeviL

Timo,

And one day you will have two smarts! I've been thinking of an electric smart as well.. it'll cure all the questions I get "is it electric?" I can finally say "YES IT IS!!" hahaha... pack the trunk full of batteries ;).. .ever lasting laptop haha..

Larry

That is when they ask if it is has a gas engine? some times while it is plugged into an outlet.

[LittoDeviL]

Just a quick video shot ...

YouTube - Turbocharged SMART Car, 0-90 mph in 17.7 sec compared to 45+ sec stock!

YouTube - Turbocharged SMART Car, 0-90 mph in 17.7 sec compared to 45+ sec stock!

View it in HD on youtube itself... 0-90 mph in about 17.7 seconds compared to 45+ seconds stock!!! Weeeee!!!! I keep improving the time... right now I think I maxed out the power on the engine and it's only limited by the octane of the gas I put in...

- 550cc RC Engineering fuel injectors
- Designed and converted from a Non-Return to a Return style fuel system with fuel pressure regulator from Fuelab
- Custom Water to Air barrel intercooler I designed that keeps the Intake Air Charge Temp only 20 degrees above ambient and between 90-109 degrees at FULL Throttle blast.
- Silver racing spark plugs, colder plug with silver center electrode (silver is the best thermal (heat) conductor of all metal.)

P.S. That 17.7 seconds is from the time the car actually moves to when it hits 90mph on the speedometer. The engine noise comes up before the clutch is engaged to move the car and the car actually runs to 96 mph on my speedometer due to the ECU unable to cut out the fuel to the engine quick enough and the acceleration momentum keeps the car moving before it starts slowing down.

Larry

[Turbo42]

550 cc thats a lot of fuel have u run 110 octane yet?

[LittoDeviL]

Originally Posted by babybenz

550 cc thats a lot of fuel have u run 110 octane yet?

Babybenz, you are absolutely correct.. it is A LOT of fuel! haha.. But it's the amount of fuel needed to achieve my first goal of 200 whp, about 230 engine hp. Since we only have 3 cylinders I needed a large injector... I had to lower the pressure since max fuel trim from the ECU and the min pulse width opening of the injector sprays too much fuel into the engine.

I was able to get it to run under boost and wide open throttle just fine but idling, cruising and starting was an issue. I tried different methods such as a deadhead regulator and what not but at the end I had to convert it to a return style fuel system to get it to run correctly. But it runs great! I'm glad I have a large enough turbo to achieve my goal and there's no sign of turbo lag neither as boost comes on almost instantly when I get on the throttle.

I haven't run 110 octane yet but I have run it with 100 octane which allows me to bump it up to 19-20 psi without the engine knocking. The turbo is good for up to 23 psi. With the 19-20 psi on 100 octane I didn't tune the car correctly, I'm opening for good or bad that.. now that I got it tuned 90%, when I fill it up with 100 octane I'm hoping to be able to get pass 20 psi without pre ignition or knocking.

Currently at 91 octane I can safely run 14 psi... in the past I've done 15+ but that's because my intake air temp was like 150 degrees, now that I brought it down to average no more then 100 degrees, a lot more VOLUME of air is going into the engine since it's so much cooler! So even though the boost number is less, the power is greater.

The picture below shows my 550 cc injectors on the left, and 440 cc next to it... both bosch style lucas disc type injectors (great spray pattern with the lucas disc), then the denso style 290 cc injectors sourced from the Nissan 350z that came with the SFR turbo kit and the last one on the right is our tiny factory injectors from SMART that came with the car



You were the one that put together your own turbo right? How's that coming along? I briefly saw your thread and saw how quick you put it together, much props to you!

Larry

[forestacademy]

0-50 in 8 seconds
0-60 in 10 seconds
0-70 in 12 seconds
Not to shabby

Looks like the tape fell of that check engine light again

Are going to ship that thing to Orlando this winter to run the track and give Baby Benz some compitition?

[Turbo42]

Its coming out good! My computer is going to be finished on Friday! Then all I will have left is to wire in my two aem digital gauges and my turbo timer. I ran across a shop that was like you have the yellow turbo smart that says smartass on it right. I was like yes lol seems everyone in Tampa knows my car now! They gave me a tour of their shop and told me dyno time is free of charge for me. They said they just want to tune a smart really bad. So the next step is water to air intercooler with a heat exchanger in the front bumper. Also I went with a much smaller turbo due to the fact that I wanted more bottom end. I will have to put video up for you at 900 rpm you all ready hear the turbo spooling. Also I am running an open down pipe which it will never recieve an exhaust. Also are you running and external waste gate like I am?

[fastturb]

you can add alcohol injection for some of the octane issues - at least try

NICE PROJECT

[chumly]

Question: Would larger injectors help any on a normally aspirated smart?