I have the David Weaver pulley and also Jeff Morys Striker street version heads and a custom Larry Macedo cam.
I'm having a lot of street driveability problems and have been told the VEC2 can't handle what I have and will have to go with the AEM system to safely drive it on the street.
Below my signature is what kind of power my setup made in Florida.
Kenny,
What kind of street drivability problems are you having?
High end miss?
Partial throttle stumble?
Poor transition from vaccuum to positive manifold pressure?
With all the time and money you have invested with your tuner, I would have hoped for 100% flawless performance out of that beast.
I drove the Viper yesterday and it started and ran for 15 seconds and died. Restarted it and warmed it up, then shut it off so it wouldn't be stuck in a cold start loop. Restarted it again and ran some errands. Low RPM surging made it very unsafe to drive in traffic.
Blew the fuse to the PCM twice on Sturday while on the dragstrip. The fuse problem only happened twice at full throttle in 4th gear and it may be fixed, but it's only made one run in 4th gear at full throttle since and it was OK, so I'm not 100% sure. It runs great at high RPM, but the normal street RPM is where most of the problems are.
My Viper was supposed to be daily driver reliable with more power. It came back to me much more like a race car with very little daily driver reliability.
Looks like it will take quite a bit more money to get an AEM and install it and tune it to fix the hard starting and surging problems and high idle hang up. I was told the VEC2 is great up to a certain level, but the Jeff Morys Striker heads have crossed that level and can't be tuned properly with the VEC2. I had talked with Jeff Morys at length about his heads and street driveability before I got them and was promised there would be no problems with the Roe Supercharger and his Striker heads. They flow so much that the Roe Supercharger can't keep up with them, even with the David Weaver Pulley.
I am totally surprised that my tuner went ahead and got the Striker heads since he is an expert with the capabilities of the Roe Supercharger and the Striker heads are not very compatible with the Roe. The car was also delivered to me in an absolute undriveable state in hot weather - the low RPM surging made it too dangerous to drive in traffic and too unsafe to drive at all if the temperature got above 85 degrees. My Viper Tech grounded the TPS & the PCM and 90-95% of the surging was gone, but the remaining surging is still too dangerous to drive in traffic. My tuner has retuned the VEC2 cards for the difference in altitude from Florida to Ohio and opened up the Water/methanol to come on much sooner, both of which has really made my Viper much more driveable. But now it is very hard to start when cold, it still usually gets stuck in a loop and has to be shut off and restarted before driving on the street, it still has high idle hang up for 30-45 seconds with clutch pressed in and will hold the high idle almost indefinately in gear, and the surging is still present at a dangerous level, and it still throws Code P0171 randomly.
Also it will have to go back down to Florida soon for retuning after the AEM is installed.
I've been extremely depressed about all of this. I was promised daily driver reliability with no codes and more power (at least the high 700's) for a certain price and very few of the promises have been met to date. And it looks like it will take quite a bit more money to hopefully have the promises be kept. My tuner has been really trying to get my Viper right, but the new costs to make it streetable after I already paid for a streetable car just don't seem right. I feel like I am being held hostage by my Viper.