Track results with my Limited

[Steve Wood]

I think Brad nailed it.  I would try the 28" tires and lock the converter if it is a good one...otherwis e, just the tires.  It's a bit rich, but it will come down with better air.  If you are going to run it again soon under similar conditions, then pull a little out

[gusszgs]

I think Brad nailed it.  I would try the 28" tires and lock the converter if it is a good one...otherwis e, just the tires.  It's a bit rich, but it will come down with better air.  If you are going to run it again soon under similar conditions, then pull a little out

Yes I agree....the 28" slic has been in the plans for awhile. Dave told me no on locking the converter. I find it difficult to believe I left at that high of boost. I'm sure I was watching the gauge and it was mid teens, but who knows the PL doesn't lie. I may of had wheel spin cause cause the 60' was nothing special. I thought it was rich too Steve. Is the link to the log working?

[gusszgs]

Both low and high gear can have some fuel pulled. Battery voltage is below 13...but not showing KR. October air and a 1.6x launch should garner an 11.4x. Your 02's will drop sharply.

All fuel was pull from 1st (102 in the parmeter), maybe turning the gain knob back a tad on the alky would help lean things a tad. Set a Julio's recommend 6.5 and never had to touch it. Or would I be better off not touching that, and remove a tad bit of fuel overall in the chip?
I have a brand new Eastpenn top of the line battery in there.....my old Interstate was showing signs of weakness when hot cranking. Should that voltage be above 13 volts while on a full pass?

[gusszgs]

Convertor slip checks in at 14.75 percent. I don't know whether you can lock Davids convertor. Depending on your high gear fueling...and if it's rich...you could lean it out to make a tad more HP. If you're MPH doesn't come up...then you're likely 'blowing through' it. I'd wait for the cool/dry air to get here...toss a 28" rear tire on it...and have at it. I have 28" DR's mounted on GN rims. You're welcome to try them. I also have 10.5x28's mounted on GN rims...yours for the asking.

Where are you getting this 14.75 CS from? PL analogue input values that Bob posted? If so, where are you calling the slip from? What gear and what rpm? Top of 3rd?

[Scoobum]

Wallace Racing Calculators... just plug the data in. I'd check the voltage at the back of the alternator.

[gusszgs]

reason I asked is i did it in the PL and the slip shows around 7% top of third gear.

[gusszgs]

Not sure how accurate the PL CS factor is........I did the TCI one as well and it's showing 12.9%

[Scoobum]

Wallace Racing Calculators aren't perfect...but they give a ballpark figure.

[gusszgs]

I appreciate the offer on the slics......... ..too bad we weren't closer or if I had a run out there in the rig I'd take ya up on it.
I gotta get the 71 back down, it was supposed to go this weekend but decided to take the T instead. Couple of small things yet to work out on the GS.
 

[Scoobum]

When I ran my SMC progressive alky kit, I adjusted the alky  turn on point. If I don't miss my guess, these engines were designed to run about 14 PSI on pump gas. I figured adding alky before that point was drowning the engine out...but maybe I'm wrong. There's two adjustments inside the PAC controller...i f I read the directions correctly.

[Steve Wood]

I calculate 9% slip which is not bad.  Calculated speed at 5491 rpm is 124.3 mph with a 26" tire.  PL shows 113 mph at that rpm....113/124= 91%   and 100%-91% equals 9%

sorry, 113 is the timing ticket speed...which should be more accurate than the PL speed

[Scoobum]

Steve...can you post that formula? You're losing me on the speed at RPM with the tire size.

[Scoobum]

This convertor I'm running must be slipping like a whore...cuz I'm seeing 5500 at the 1/8th mile...and 6000 at the 1/4 mile.

[Steve Wood]

Steve...can you post that formula? You're losing me on the speed at RPM with the tire size.

I can give you a formula if you like, but, I used this calculator   http://www.advanced-ev.com/Calculators/TireSize/

Gives me the same answer as the Wallace Racing calculator

[Steve Wood]

6000 with a 28" tire is 146 mph