Surging issue help with 05' Vette

[zippy performance]

I am fighting a surging issue with a 2005 Corvette. This car was surging since it was put together with the 416 and TTI twin turbo kit with 60's. The cam is a 236/232 in a 116LSA and compression is 9:1. After it ran on a maf tune for a while from a previous tuner I tuned the car on a 2 bar SD via HPT. Since the 2 bar we've set the boost controler to 12psi, 15psi, and 19psi. The car has Motron 60's (tall). The car has meth that if I recall comes in around 7psi or so and a secondary fuel pump that comes in at 2psi and raises fuel pressure to 62psi. We've made 824 on boost alone and 943 on nitrous through a 4L65E with an unlocked 3400 stall. The car is driven a few times a week or more and probably gets 10,000 miles a year. I'm digging for the file right now and will post that in a minute.

On a side note I recently fixed an annoying P621 code the car was setting by removing the TR9 (installed when I put on the nitrous) plugs and putting back in TR6's. It turns out that TR7's and up are non-resistor plugs and will cause problems in 05'-08' Corvette's. Certainly will on a 2005.

[zippy performance]

Here is the file. The surging is only at an idle and seems to go away by 142-146 degrees F.

[RWTD]

Did you use the proper injector calibration data for the Siemens 60s?

[firehawk26]

I use to have the same problem with my one 2006 F1-C blower in one off my friend car after poting the right calibration data and paly little with the idel flow the surging issue goan .
Get greg DVD it will tell you how to do it .

[zippy performance]

Did you use the proper injector calibration data for the Siemens 60s?

Yep, right from the spreadsheet with the exception of the flow rate which I feel is the biggest problem. (I finally got my Greg Banish DVD) This pcm will only allow an injector flow rate number of up to 63.5. I just put this info in there a couple days ago and it helped quite a bit. Now the problem is way less noticable and is completely gone on hot restarts. I suspect the problem is from the cam size with low compression and not being able to enter in a correct injector flow rate. I've tuned cars with these injectors with the 63.5# injector table limitation and it's never really a problem unless they have a cam with over 230 duration. I'm up for idea's though. Thanks ahead of time guys.

[RWTD]

Okay, I need to help you scale down all the parameters referenced by airflow/torque so that we can get you around that 63.5# issue, PLUS get double the MAF airflow range. Shoot me a PM.

[zippy performance]

I'll shoot you a pm later tonight. I've considered altering the value's to fix the injector size issue the best I can. The maf on this car is only there for the IAT, other than that it's useless.