Powergrid

I'm installing a powergrid on a blown Hemi in a Promod. Should i be taking fuel out on the two step? And if so how and how much? Or just leave it alone. Thanks in advance for any help. Chris.

 

Some do, Some don't

 

power grid

we put one (2) and now taking it out. don't seem to work as good as 8973.. do a search on here... i read all wires need to be grounded/shielded...

 

X2

If you're having problems with the Power Grid, double check all your grounds and make sure your supply battery isn't shorting itself out under load.

The review function is also helpful if you think you're having ignition problems. MSD has was of viewing things on the logged runs that can tell you if everything is functioning properly and your inputs are all working right. Even the crank trigger signal.

 

I know Will feels the same way I do about thr 8973, I blew up a BUNCH of @#%$ after installing and it went away when I took it off ( I also made some Crew changes that had their hands on it too so that could have been a factor??!!)

 

power grid

What did you to make it work propery??? We didnt use shielded white wire to mag.
Are you recording timing with a speparate sensor other then MSD???
when we put it on the 2 step with the grid, the timing is jumping all over the place... once into the run doesn;t go back to full timing... we loose 2deg. with grid.

 

1871 M5 526 BAE 2700 hp with Grid I pull fuel with a solenoid while on 2 step no jet in it = .130 works great

 

Here is are dilemma right now we may think is the cause from the PowerGrid.

Running a screw blown 526 KB olds pro mag 44 with power grid. only using the box to pull timing and 2 step. 1st pass car goes right down the track. come back pull a little less timing from back side 1.95 to 1.80 ONLY change made. Go up there get on 2 step it lifts the blower leaving at 4000 . came back to pit checked all plugs look good ran valves still are perfect pulled blower off checked everything. before race also put in NEW PLUGS,NEW WIRES, NEW CAP and ROTOR.

Put everything back together tried to start car again in pit starts up perfect looking at laptop as car runs hit transbrake button first no gas and watch the timing drop on the gauge to make sure that is working correctly. then next we barely hit the gas on no 2 step goes to maybe 3500-4000 and lifts the blower again.

Kind of lost at this point what is going and thinking it has to be in the ignition. have heard of others having problems with this box before.

Any help would be much appreciated

Thanks,
Aaron Horween

 

Hey Mike we are not pulling timing on the 2 step just at the release of the button. We are pulling out fuel on the 2 step with a 98 jet in there now. the EGTS were all on the conservative side hottest one being 1054 pulled the plugs after the second pass pretty much look like new. And we are not running a crank trigger

 

I had the same thing happen (popping blower off at the hit), several intake valve seats were beaten down with lots of leak down. New seats and problem solved.

 

Power Grid

I ran the 8973 with no problems except serial port hook-up problems over the years, but went to the Power Grid this year. I really like it on a blown alcohol BAE ProMod, but had a few issues that were my fault at first. I did not have the proper grounds and had some starting and misfire problems, but all is great now and love the ease of use. I also take a lot of fuel out on the 2-step to help keep cylinder temperatures up before the launch. Most all cylinders are warm now and up to temperature when I leave but the colder cylinders do make the temp I want now by the end of the run. I use the Power Grid with the 2-step for launch timing retard and the 2-step, and to send data to the Racepak. THANKS, Jim

 

That is entirely too hot against the brake.

Brandon Booher
NHRA TAD #3
Torque MGMT. - Owner

 

Read it a couple times, I think he was talking about temps during the run.