urbamworm

I just happened to look at my belt yesterday and noticed my belt had jumped forward one rib on the supercharger pulley. It looked normal on the crank, but I had to release tension and slide it back in to the correct position. So the opposite of what you had happen.

Not sure how long it has been like that, I have about 2500miles on it since installing the supercharger pulley and also a slightly smaller than stock belt (K080505HD).

E55Greasemonkey

Just an update; I went back to the original dyno today and gained 27hp/17tq since last year. I've added the 82mm TB, and cleaned up the exhaust setup since then. Outside temp was nearly the same too. It's still hot in Florida right now even in December. Saw 88F on my dash driving around today.

Previous: 449hp/476tq

Today: 476hp/493tq

All on the same Dynojet/SAE correction

Although I hit 478hp last year at a different dynojet, BEFORE the 82TB, I just saw that old dyno chart was done in STD correction. I have read STD reads about 4% higher than SAE on the Dynojet, so I would expect to see close to 500hp if I were to run it at the other dyno where I did the 478...Anyways, all the math adds up.


My friend brought a dead stock '06 CLS55 which put down only 348WHP...Suspicious, I then checked his intake temp with my TORQUE/OBD bluetooth and found 177F (!!!) at idle after 5 minutes after the first run. Yep, dead intercooler pump. He is going to order a new -010 BOSCH and return to the dyno soon, so we will have some good stock numbers to compare. For comparison, I drove off the dyno after 2nd run, and a couple minutes idling at 122F.

We have yet to see a cold, dry night here in Orlando, but I would expect an 11.40 or 11.50 given the proper weather.

DVC

Nice and stout...well done. Will be interesting to quantify what the CLS55 picks up with the new I/C pump.

Shifter

Hey GM, want d to check in now that the weather has has broken a bit here in Fl. How's the water injection been working , impressions from the summer, and now that it's cool? Was it what you expected performance wise? Worth it?

E55Greasemonkey

I'm hoping to get to the track in the next couple months. A couple days ago when it was in the high 60's my water injection kept the IAT's under 100F all the way through half of 3rd gear...and holding steady...Compared to last time at the track, without the injection, I was seeing 160F even at 65F ambient!! Through the summer, I saw highest IAT's around 130F, up to 160F with it turned off. The biggest difference I feel, is I think it keeps the ECU in a higher octane table..the car felt punchy and responsive throughout the summer heat. Just a theory but I bet there are some 95+ octane tables buried in the ECU from the factory. The ECU has to have SOME way of knowing what octane fuel is in the tank...I suspect from measuring knock. I'm hoping to hit 11.30s-11.40s next time at the track, for a gain of .2 to .3 tenths. We shall see! That will be the final answer to whether it's worth it or not.