turbocharger

[mohammad]

Hi,
do we realy need to use turbocharger, with a 600cc engine?
I dont work on engine, but Im just curious about that, isn`t the turbocharger only increase the power of engine? if yes, and it doesnt do anything else, it seems the power of these engines(honda CBR 600) is sufficient for a car with weight about 250kg, and with those speed and acceleration times, that you know.
so, why most of the teams use it?

mohammad

[mohammad]

Hi,
do we realy need to use turbocharger, with a 600cc engine?
I dont work on engine, but Im just curious about that, isn`t the turbocharger only increase the power of engine? if yes, and it doesnt do anything else, it seems the power of these engines(honda CBR 600) is sufficient for a car with weight about 250kg, and with those speed and acceleration times, that you know.
so, why most of the teams use it?

mohammad

[pengulns2001]

most of the teams dont use it... but the higher power to weight ratio the better, also flatter tq curve and a wider power band

[Jersey Tom]

Turbo allows you to choke the restrictor earlier in the RPMs. Doesn't pull any more air through when it is choked.

[Nima]

The torbocharger makes your engine work regular. So if you install it on your engine, may have a linear rpm curve and the flat pick of the tourqe curve. I think it may couse to a better acceleration and higher max velocity. but I offer you not to use it if you are working on the first car...

Mybe we'll talk about it more...

[drivetrainUW-Platt]

Turbos add a lot of weight, complexity and cost to the car

[Homemade WRX]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by drivetrainUW-Platt:
Turbos add a lot of weight, complexity and cost to the car </div></BLOCKQUOTE>
all true...but it works for some...and is really nice on a light weight one or two cylinder to help "compensate"

[pengulns2001]

i really dont think they add that much complexity, and by the time you get rid of the muffler since you can meet db requirements without one (or a TINY one) you only gain about 5-10 pounds, power to weight ratio goes through the roof and your tq curve gets WAY healthier... i think its pretty simple to implement if you have someone who knows what your doing, and in my opinion tuning is
easier... i might just be used to doing turbo work though

my suggestion, if you have an extra 2-3 weeks throw a turbo on your car, test it.... if it works well refine the system and use it, if your good it probably wont even take you that long

[VFR750R]

Don't forget about the oiling issue with most turbos. If you care that it will smoke, it may take you more then 2-3 weeks to figure out and possibly more cost depending on your solution.

I argue about the weight. Our turbo weighed 7lbs and our headers and muffler were lighter by a majority of that amount. It does add cost and complexity.

[pengulns2001]

the oiling issue isnt really that hard to figure out, especially now... just call garret and ask them what to do about it, i wont give away how we fixed ours but its really pretty simple

[Kamil S]

penguins,

don't mean to sound like an ass but why exactly wouldn't you share your oiling fixup?

[pengulns2001]

just drill a tiny hole .050" in your feed plate, thats not how i have ours fixed but it will fix your problem

[pengulns2001]

i wont post my exact system because i dont want everyone at comp showing up with the same idea...

[drivetrainUW-Platt]

talk to turbowig on oiling...not like its some big secret......