tbyrne Posted January 14, 2004 Report Share Posted January 14, 2004 Let me know how much boost you want to run. We can get you a smaller Vortech pulley. The tensioner is able to compensate for most pulley upgrades. It would be good to go with a smaller belt if you find that your getting belt slippage. Tom Link to comment Share on other sites More sharing options...
BenKey Posted January 14, 2004 Report Share Posted January 14, 2004 How much boost are you guys seeing with the 3.1? Is it 7lbs? Link to comment Share on other sites More sharing options...
slimsoftball Posted January 14, 2004 Report Share Posted January 14, 2004 How much boost are you guys seeing with the 3.1? Is it 7lbs? I am seeing a little over 8. Oh wait a minute, I have the 3.0 I got a Goodyear Gatorback this week (111.5). I haven't noticed a hint of slippage. I was getting it with the Gates belt. Of course I would never had known that without some thread telling me to look for the black dust. Link to comment Share on other sites More sharing options...
BenKey Posted January 14, 2004 Report Share Posted January 14, 2004 Nice belts. I'm adding a larger idler to help keep from slipping also. Link to comment Share on other sites More sharing options...
adams2003 Posted January 14, 2004 Report Share Posted January 14, 2004 Is 10 pounds of boost pushing it to far? Link to comment Share on other sites More sharing options...
BenKey Posted January 14, 2004 Report Share Posted January 14, 2004 Is 10 pounds of boost pushing it to far? That's about what I'm going to be at. With your compression, you'll probably see some detonation. Tuning may be able to prevent that. I'm hoping that it won't be too much of a factor for me, but I have lowered my CR to about 9.5:1. Link to comment Share on other sites More sharing options...
adams2003 Posted January 14, 2004 Report Share Posted January 14, 2004 Is 10 pounds of boost pushing it to far? That's about what I'm going to be at. With your compression, you'll probably see some detonation. Tuning may be able to prevent that. I'm hoping that it won't be too much of a factor for me, but I have lowered my CR to about 9.5:1. When you lower the compression dont you loose hp? Link to comment Share on other sites More sharing options...
blownchevy Posted January 14, 2004 Report Share Posted January 14, 2004 In a naturally asparated application ( say that 10 times ) Yes. In a boosted application, No. Boost makes more HP than compression and the lower C/R will allow you to raise your boost levels. Link to comment Share on other sites More sharing options...
adams2003 Posted January 14, 2004 Report Share Posted January 14, 2004 So 10 lbs of boost with a 9.5:1 c/r would be faster and less stressful on the engine/trans or about the same amount of stress? Link to comment Share on other sites More sharing options...
blownchevy Posted January 14, 2004 Report Share Posted January 14, 2004 Yes and no. If you have a 9.5:1 and are running 7psi of boost, and you drop your C/R to 8.5:1 and raise your boost up to 13psi you will make more power from the boost. So, yes it will be "easier" on your motor in some ways.....I would say it will be "safer" more reliable HP to lower your C/R and run more boost. + you can run a dab more timing with the lower C/R. This is the route I plan on going this year with my 6.0 build up. 8.5:1 C/R with about 12-13 psi. Link to comment Share on other sites More sharing options...
adams2003 Posted January 14, 2004 Report Share Posted January 14, 2004 Yes and no. If you have a 9.5:1 and are running 7psi of boost, and you drop your C/R to 8.5:1 and raise your boost up to 13psi you will make more power from the boost. So, yes it will be "easier" on your motor in some ways.....I would say it will be "safer" more reliable HP to lower your C/R and run more boost. + you can run a dab more timing with the lower C/R. This is the route I plan on going this year with my 6.0 build up. 8.5:1 C/R with about 12-13 psi. Thanks for the info. Link to comment Share on other sites More sharing options...
adams2003 Posted January 14, 2004 Report Share Posted January 14, 2004 Let me know how much boost you want to run. We can get you a smaller Vortech pulley. The tensioner is able to compensate for most pulley upgrades. It would be good to go with a smaller belt if you find that your getting belt slippage. Tom Im thinking maybe 10-11 lbs. Link to comment Share on other sites More sharing options...
tbyrne Posted January 14, 2004 Report Share Posted January 14, 2004 I'll check on this for you. Link to comment Share on other sites More sharing options...
dcairns Posted January 15, 2004 Report Share Posted January 15, 2004 Speaking of belts, it is a good idea to keep a spare under the seat. These longer belts aren't the sort of thing you find at the corner auto parts store in the middle of the night. And you know when it does break, it won't be at a convienient time or place Link to comment Share on other sites More sharing options...
adams2003 Posted January 15, 2004 Report Share Posted January 15, 2004 Speaking of belts, it is a good idea to keep a spare under the seat. These longer belts aren't the sort of thing you find at the corner auto parts store in the middle of the night. And you know when it does break, it won't be at a convienient time or place That's a great point, ive been meaning to get a spare. Link to comment Share on other sites More sharing options...
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