|
There question has been asked: Why?
The easy answer: Quick, easy h.p. at a known price, with simple "bolt on" parts! Generally speaking I look at $ to H.P. gained. Nitrous is actually the CHEAPEST quickest way to H.P. per dollar (until you blow the motor)! A super charger is generally quicker/cheaper than a Turbo charger. Keep the boost at 5 psi or under and you can bolt it on MOST motors and be done in a weekend. Now I didn't "go there" with "up grades" to the fuel system, ignition system and related items. So BUYER BEWARE, there is no "free" lunch! Ernie |
SCOBRAC , 750HP Hi Guys. The new learning curve is changing. There are guys racing with 10:1 motors and 10-15 lbs boost with no problems. Instead on having a fast boost build up in the lower RPMs, they slowed it down and are going to a higher rpm for the same power. A kid living behind me has a camero 2001 with the LS1 and a 6 psi kit. It is intercooled. It took 2 days to install, but it runs on 92 gas with no problems. Has car does the same thing with the boost starting at 2700rpm up to 5700rpm. The weak valve springs stop the motor from higher revs. He is putting new ones in in 2 weeks. and got a smaller pulley. There is less stress on the motor and detonation at 6000 than at 3000 rpms. The car chassic has to handle the power increase without getting unstable. If you drag race, and the motor comes on boost quick, the tires just get blown away. You also don't need a big cam to make big power, 230degree at .50 and 500 lift will get you 1000 hp at 7500 rpm with a good system. my 2 cents Rick Lake
|
Rick Lake- Your post beat me to to the punch! I concure! Case point in fact, I have seen some unreal horsepower numbers with modestly boosted semi stock engines. The trend is to think of a supercharger as a "sort of" passing gear. My engine has a 9 to 1 comp. ratio for example and I am about ready to loose the roller cam in favor of a more reliable hyd. bumpstick. I will get the power back with a pulley change. Remember guys, just because it's blown doesn't mean that it has to be wild to make serious power.
Niles- The open secret to running blowers of all configerations and in all types of engines is retard the ignition. It's just that simple, and I can't stress that enough. I know, I know, the more advance you run, the more power you get. But that's when problems start raising their ugly little heads. cobrashock |
my MSD 6BTM ignition module retards the spark 2 degrees for every pound of boost so that engine does not go kaboom ! B
|
You can push the margins a little deeper when you have EFI with knock sensors and automatic timing retard, as have new camaros and mustangs.
Once you have driven a 6-71 blown hemi, all that low end torque and top end HP, together in the same motor......well there is little like it. |
Mr.Fixit- Exactly why I have a Megga Mopar block sitting in the corner of my shop, BACKUP.
|
Ron Shockley YOU ARE NOT SHARING with the rest of us?? Where are the spark plug holes located?? I hope they are in the middle on the head. 2 plugs per cylinder would be even nicer. Pictures also help greatly. :rolleyes: ;) :D Rick Lake ps I worked on one for 2 years without the blower, that 69 Roadrunner always could make you smile when that 8 barrel carbs opened up and the gas gauge was chasing the tach empty. only had a 9 gallon gas tank.
|
Rick-just a quick note as I'm doing my taxes.:CRY: :CRY: Actually I can turn wrenches with the best of em, but when it comes to this computer I am a idiot. Don't know how to post pictures. I'll drop you a e-mail in a day or so if your interested about my motor and send you some pictures of it and the car if interested. In it's presant carnate it is a 460 block with a Howards arm and the Chevy rod setup. Blue Thunder heads (Chevy ports ) and a Vortec V-4-J trim, with a Dominator in the box- that sorta rounds it out.
Later,,,,,,,,,,,,,,, Cobrashock |
| All times are GMT -7. The time now is 05:02 AM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2026, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: