I got my turbo set up, but I haven't put it on yet, Im going to run auto cross, but I wanted to know if any one is running turbo???? (I don't know if it can hang with the high RPM's???) or should I scrap the turbo and go all motor,????? I just want to what's the best for auto cross, cuz I really want to go turbo too. pls help me out thanks

 

O yeah it's a EG hb, with a gsr swap

 

Turbo or NA is of little importance unless you can put the power to the ground...
ie, shocks, springs, tires, and not to mention driver skill. A good motor will help, but not nearly as much as a car with "horsepower for the corners".

For instance if you're powering out of a corner by mashing on the gas, your front inside wheel will just break loose and you will gain nothing.

What else is going on with your car? Is it stock?

More important then anything else, go out and have fun.

 

It all depends on the class that you are in but emwavey is right that other things are more important in autocross. Driver, tires, and suspension are the biggies, power is a distant 4th probaby. Also whether you have an open diff or a limited slip is big as well as most normally aspirated cars will have plenty of challenge putting the power down with an open diff alone. I used to heavily autocross an Omni GLH Turbo and we always called it "the smokemaker" because it was great at spinning wheels and overcoming the traction opportunties. Turbo lag can be a big issue as well as there is some delay between throttle application and power generation and the time spent on the throttle in autocross is critical.

As an example, back when I was running my car, there was a guy running a similar non-Turbo GLH, myself in the Turbo car and one guy with an intercooled turbo GLHS that had even more lag although he had 25 more horsepower when it was on. Although there was variation in driver skill, regulalry the non-turbo car would beat the two turbos and the intercooled turbo car was usually the slowest of all. The tighter the course, the more it favored NA engines. There are some driving style issues that one car work with like left foot braking to help keep the boost up, etc.

Generally I would say for most situations that the NA would probably be the best all around situation because it has fewer issues and the cars with more power have more reliance for extra traction, grip and handling in addition to lag issues.

With autocross, the most important thing of all is the driver and actually doing it. I would put the need for a turbo right near the bottom of the list.

 

please use some sort of punctuation in your topic, so we know if you are making a statement or asking a question

 

you have enough power with the gsr motor alone, there are better places to spend your money than on more power. FWIW, i have a stock ls motor and i feel it is enough power for now. i place pretty well locally in SM, my driving is the slowest factor right now. if you're looking to win nationals? yeah maybe get a turbo or supercharger. until then, leave it all motor, and be happy with your better gas mileage and less maintenance worries.

 

I think you're going to need to do some research. The Forced Induction forum is really good at providing comparisons and information about the advantages of turbo charging versus superchargers for instance: https://honda-tech.com/zeroforum?id=16 That should help answer your basic questions about what route you should go, the effects of spool time etc. Most people there are probably going to tell you to go turbo, but most of them don't engage in any form of motorsports. Keep that in mind. Collect the facts and make up your own mind.

If you look at some of the top Street Modified cars in Solo2, specifically the M3's you'll see that they have lots of engine work. Take the 2002/03 SM National Championship car. Supercharger and headwork for lots of power, because thats what it takes to be competitive in the SM class: http://www.sccaforums.com/ubb/...2/240

It might hurt to go by what I've read but many people running turbos barely notice any lag. Although most never autocross. There have also been many successful turbo:ed cars in Le Mans and other racing series. It would be a definite advantage on the straights to have a turbo. Most cars are not using 100% of their tires grip on straightaways and could blast down faster if only they had the power. A turbo would help you pick up time there.

It can't be repeated enough but most all performance enhancing modifications will not make much of a difference in terms of winning, unless you first become a skilled driver. A good turbo setup is going to make your car faster on a AutoX course though, but it may take a lot of time and effort that you may rather use towards improving your own driving skills.

 

why are you asking whats "best"?

just go out and have fun with your car. then figure out whats best for YOU!

 

yeah I know but I just wanted to know in if a stock gsr turbo would handle in auto cross due to the high RPM's???? and the down shifting?? would it be safer to sell the turbo kit and build it all motor??? (what's the best for the motor, want it to last)
( I think I know the answer I just want to hear it from someone who tryed it? ) thanks

 

Your excitement in auto-x is great. I think you need to work on fundamentals of racing. Specefically the part between the seat and the steering wheel.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civtegra_hybrid &raquo;</TD></TR><TR><TD CLASS="quote">yeah I know but I just wanted to know in if a stock gsr turbo would handle in auto cross due to the high RPM's???? and the down shifting?? would it be safer to sell the turbo kit and build it all motor??? (what's the best for the motor, want it to last)
( I think I know the answer I just want to hear it from someone who tryed it? ) thanks</TD></TR></TABLE>

Higher rpm's shouldn't matter; besides, it's a Honda right?

As long as you're not running anything stupid like 20psi you should be fine.

Also... downshifting??? I think most people will tell you that 98% of autocrosses are run in 2nd gear. On the occasion you go to third, just match revs on the braking and downshifting (heel/toe) to 2nd and you'll be fine as well.

Anthony "Mario" Crea

 

If you are just starting out auto-xing then STOP SPENDING MONEY ON YOUR CAR NOW!!!!

Auto-x is precision driving. Make the driver precise! ANd there is only one way for the driver to learn to be precise. SEAT TIME. Spend all your money on going to extra auto-x events, even if far from home. Spend your money on auto-x schools.

Money spent on your car will be wasted until you learn to auto-x. And auto-xing is a very different skill set then driving fast on the street or on the track.

-Alan