CHarris

iTrader: (5)

Well, the weather cooperated today so I got to beat the H2 all the way down the road legally this time These runs are with the 2.9 Nelson pulley and 8.5 psi. I leave the line at about 2250 rpms on a stock convertor.

First run...

60': 2.137 330': 6.089 1/8: 9.392 @ 74.76 mph 1/4': 14.604 @ 93.55

Second run...

60': 2.088 330': 6.059 1/8: 9.398 @ 74.36 mph 1/4': 14.641 @ 92.57

IAT's were a "cool" 70 degrees above ambient at the start of the first run and were 50 degrees over ambient at the start of the second run. Both runs ended with IAT's in the 150-160 range.

I wish I had video of the runs because it felt pretty strong. There was this dodge cummins turbo diesel that got a real good look at the second run since I crossed the line almost a second ahead of him

TigerFan187

iTrader: (1)

Dayum! I know you steadily mess with people on the street! You need to spray that beast! Do it! Do it!

CHarris

iTrader: (5)

I was going to scale the truck at the track but they told me I had to push it on and off the scale. I said screw that I ain't pushing this truck anywhere.

Green Thunder

iTrader: (11)

Thats smokin in a H2! Havent followed any performance H2's, is yours the fastest around?

CHarris

iTrader: (5)

I can't lay claim to anything other being the fastest in Bremerton and absolutely the quickest and fastest in my driveway

There's always someone somewhere faster. I belive that Breathless Performance went 12's with theirs. Of course they tried to sell it for something like $100k after they got tired of playing with it. There's also the possibilty of a LPE twin turbo out there somewhere. They sell the package so I'm sure someone has it.

CHarris

iTrader: (5)

I need to add that the 1-2 shift felt "strange and slow" to me on both runs. I just finished reviewing my saved HP Tuner log file from run #2. I'm kinda pissed because I logged the first run and forgot to save the file before turning off the ignition. So I could have learned this earlier in the day and corrected it for run #2...

Last week I went ahead and changed the valvesprings on the H2 over to a set of springs and retainers that I bought from SDPC. I never experienced any issues with the stock springs (less than 4500 miles on them) but I just wanted to go ahead and do them to ensure that I wouldn't have any issues ever. Anyway, apparently the new springs and retainers allow the truck to rev faster in 1st gear. I can see from the log that I bounced the rev limiter at 6200 rpm then it closes the throttle to 39% and I drop back to 6000 rpm and then it shifted. All this took .800 seconds where the 1-2 shift typically takes .500 seconds. I was sweating that the 1-2 band might be toasted but this clearly shows that the rev limiter was hit. I'd say the truck definely has a 14.5 and maybe a high 14.4x in it as it sits.

If only I had seen the first log file to see it earlier As a note, I had a commanded shift point of 5800 that was shifting at 6000 rpms on stock springs and retainers. I've readjusted the commanded shift point down to 5700 for the 1-2 and will likely have to drop another 50 rpms to get where I really want to be (6000-6050 rpm).

BlownChevy

iTrader: (20)

Nice numbers!

CHarris

iTrader: (5)

Thanks, now I just have to get off my *** and install the boost a pump, and do the crank pinning. Both are on my bench waiting. Not that I've had an issue with the balancer - everything is a-okay- I just don't want to ever have to worry. It's cheap peace of mind

BlownChevy

iTrader: (20)

Fun Stuff!!! Sounds like you are on the right track.

F8L Z71

Congrats man!!

Those are smoking times in that pig!!