The idler adjustment was maxxed out so the larger diameter idler is to increase tension and try to wrap the belt a little better. The car is pretty much useless traction wise so I've talked him into putting some southside or megabite suspension under it before I rack up a bunch of money trying to make more power. He's going to get some track bite for the belt and drive it for a while. If he wants more power after that, I'm first going to relocate the idler towards the supercharger. I was also thinking about cogged belts and drive pulleys. I was going to check with McMaster Carr. What do you recommend as a vendor for cogged drive parts? The owner asked me today if the computer would compensate for running 87 octane without the water injection.
If it had a knock sensor it would, but I tuned it on 93 with water so more boost may not be a good idea for now.
Thanks,
Kevin