Good N/A Tune but...Going Supercharged I could use advice on a base tune

[tatasta]

Hello,
Currently I am running N/A on my 99 T/A. Engine is a stock bottom end with P&P 243's, LS6 intake, TR224-112, stock MAF, BBK 80mm tb, A4 with 3400 2.1 stall. Previous to the S/C, I was running a 125 wet shot but that's gone now.
As mentioned before, my tune for N/A is solid but I need to establish a safe base tune to begin using my P1SC Procharger. I have added 60# Motron's and the S/C uses the standard twin Procharger intercoolers.
I plan to run 6-7# of boost.
I have attached my N/A tune and a log file for reference. I expect that I need to pull timing and drop WOT AFR to~11:1.
I just need a little advice so I don't scatter on my maiden voyage.

Thank you in advance for any help.

[WeathermanShawn]

Bob:

Good luck on your project. Keep us updated how it goes.

Hopefully you will get some advice on your set-up. Keep in touch!

..Shawn..

[joecar]

A comment after viewing briefly:

- the 105kPa columns of B0101 Main VE and A0009 Boost VE should be identical (yours are slightly different).
- B4001 is not correct for 60lb/hr injectors.

[tatasta]

joecar,

Thanks for posting.I will take care of A0009 and B4001. I decided not to make any changes until I heard from a couple of you guys.
I will use the IFR spreadsheet to calculate B4001. Do you think that will be sufficient to get the injectors running or will the injectors likely need more detailed tuning as far as a base tune?

Thanks

[tatasta]

joecar,

Thanks for posting.I will take care of A0009 and B4001. I decided not to make any changes until I heard from a couple of you guys.
I will use the IFR spreadsheet to calculate B4001. Do you think that will be sufficient to get the injectors running or will the injectors likely need more detailed tuning as far as a base tune?

Thanks

Here are a few changes. Mostly the stuff I could think of. I know I want my AFR to be around 11-11.5 at WOT and timing at ~ 16-18*. Just need to know what that should look like.

N/A and New S/C tune attached for comparison (S/C tune is very crude)

Thanks!

[joecar]

Good call on the protection mode tables

[tatasta]

ttt...any further advice would be welcome

Thanks Joe!

[WeathermanShawn]

Bob, I'm not sure with your set-up what Spark Tables you will be using (COS or No COS?), but just double-check your High-Octane Spark vs Low-Octane Spark. Do you want your Low-Octane Spark greater than your High-Octane Spark?

I know a lot of SC'ers use B5908 to add or subtract further timing depending on enrichment. Just another option.

So who is doing the install?

[tatasta]

Shawn,
Yep. I missed changing my low octane table. I will fix it.
I am doing the install. Not too bad except the ATI balancer install. The balancer itself was ok. Pinning the crank sucked. Driving the pin in was ridiculous. I got within 80 thousandths then had to file it down. Trying to drive it in was making ill from hammering on the pin.

So, do you think I should just log my base tune with the same CALC VE pids? Basically, use the same logging/mapping? I am a bit nervous but looking forward to running it.
Thanks

[WeathermanShawn]

So would you still be using the MAF to determine the Airflow? Closed loop or Open?

I would assume that as you increase boost the MAF Airflow would proportionally increase. If thats the case you could probably start out with the CALC.VE Pids and general concept. As long as your IAT is kept under control.

I guess in reality the 6-8 lbs of boost is just getting you back to near normal atmospheric pressure. SC is real popular here in Colorado. I'm in a real minority being N/A.