thorne Posted September 12, 2007 Report Share Posted September 12, 2007 I've been trying to learn about turbo charging carbd motors. The biggest issue I keep hitting is how to manage the fuel/spark. This is sorta a tech question but I wanted some talk about how it works. and ideas. My thoughts. Seal box around the carbs Larger jets. Retard timing 5 degrees to start. I've been reading allot about this I'm just hoping to get some ideas from the turbo guys on CR. Quote Link to comment Share on other sites More sharing options...
fattyona12 Posted September 12, 2007 Report Share Posted September 12, 2007 or a carb hat with a cs or similar blow thru set up Quote Link to comment Share on other sites More sharing options...
Trjackson Posted September 12, 2007 Report Share Posted September 12, 2007 I am learning about this stuff right now. It is rather interesting. How they tune it, not there yet. I know about two different "style" though. Obviously the common one being the "turbo hat" way. That is when the forced induction system work the same as it does on an injected car. It goes through the piping through a "turbo hat" that sits ontop of the carb, and the air is forced through the carb mixing with fuel and goes into the plenum. The other is a "blow thru" carb. Atmospheric air comes into a "dummy intake manifold" goes thru a carb, then fuel and air mix and go thru a charge pipe that then leads to the turbo. Then, the turbo compresses air and fuel together then goes into another intake manifold. I just learned this today, I may be wrong, but that is how I understand it. Jackson Quote Link to comment Share on other sites More sharing options...
thorne Posted September 12, 2007 Author Report Share Posted September 12, 2007 Yeah this is complex. It might be easier just to swap motors. I just would love to do a turbo bike. Quote Link to comment Share on other sites More sharing options...
turbospec29 Posted September 12, 2007 Report Share Posted September 12, 2007 Couldnt you just put throttle bodies on the bike and replace the carbs? Quote Link to comment Share on other sites More sharing options...
thorne Posted September 12, 2007 Author Report Share Posted September 12, 2007 yes, you can use the older GSXR TB. But it seemed like that was even more complex then doing the carb setup. I've been readinga bout this for a few months. If I don't not already have a extra turbo and flange i could fab up. Quote Link to comment Share on other sites More sharing options...
luckybusa Posted September 12, 2007 Report Share Posted September 12, 2007 what kinda bike is it Quote Link to comment Share on other sites More sharing options...
Bam Posted September 12, 2007 Report Share Posted September 12, 2007 probably his katana Quote Link to comment Share on other sites More sharing options...
Smokey Posted September 12, 2007 Report Share Posted September 12, 2007 Ty's right, but what he described as "blow thru" is actually considered a "pull thru" setup. In essence it's easy to think about if the carb is before the turbo, then the air is pulled through, if it's after the turbo, it's blown through...hence the names. Now if only tuning one of those systems was so easy On a bike, I've generally seen blow thru setups with carbs due to spacing restrictions, but anything is possible. Look up old turbo kits made by "Mr. Turbo" and you'll see some interesting stuff. Very hard to tune for the wide rev range that a bike sees though. Quote Link to comment Share on other sites More sharing options...
Lustalbert Posted September 12, 2007 Report Share Posted September 12, 2007 Throttle bodies + Mega Squirt Quote Link to comment Share on other sites More sharing options...
luckybusa Posted September 12, 2007 Report Share Posted September 12, 2007 just sell it and buy this prostreet busa Quote Link to comment Share on other sites More sharing options...
Buckeye1647545503 Posted September 12, 2007 Report Share Posted September 12, 2007 http://www.turbomustangs.com There is a ton of info to be had on this site Quote Link to comment Share on other sites More sharing options...
Rally Pat Posted September 12, 2007 Report Share Posted September 12, 2007 There are a few styles of carb setups that I know of. There are blow through and draw through. They are pretty self explanatory. The blow through is more popular. Monster Garage built a Turbo VW Beetle with a draw through turbo setup, where the carb was before the turbo. As for spark control, the MSD-5462 ignition box seems to be popluar. It has an adjustable boost retard. Hope I at least got some of that information right... Quote Link to comment Share on other sites More sharing options...
Guest Removed Posted September 12, 2007 Report Share Posted September 12, 2007 you can do it draw thru or blow thru...deopending on horse power levels. you can even mod a normal holley for light blow thru duty! http://www.theturboforums.com/smf/index.php?PHPSESSID=c9bc0fb8ae3249425d01085071e2b44f&board=13.0 basiclly lots of reading here for you to learnz.... http://www.csucarbs.com/ a company that can build you one.. if your for real call me and i can explain it in more detail Quote Link to comment Share on other sites More sharing options...
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